conductionhearinglossa less common formof hearing loss,caused by damage tothe mechanicalsystem that conductssound waves to thecochlea.positivereinforcementincreasing behaviors bypresenting positivereinforcers. A positivereinforcer is any stimulusthat, when presented aftera response, strengthensthe response. (MyersPsychology for AP 3e p.285)top-downprocessinginformationprocessing guided byhigher-level mentalprocesses, as whenwe constructperceptions drawingon our experienceand expectations.gestaltan organized whole.Gestalt psychologistsemphasized ourtendency to integratepieces of informationinto meaningfulwholes.huethe dimension ofcolor that isdetermined by thewavelength of light;what we know as thecolor names blue,green, and so forth.IvanPavlovRussian physiologist;discovered classicalconditioning; traineddogs to salivate atthe ringing of a bellsynapsethe junction betweenthe axon tip of thesending neuron andthe dendrite or cellbody of the receivingneuron. The tiny gap atthis junction is calledthe synaptic gap orsynaptic cleft.selectiveattentionthe focusingof consciousawareness ona particularstimulusfrontallobesportion of thecerebral cortex lyingjust behind theforehead; involved inspeaking and musclemovements and inmaking plans andjudgments.insighta sudden realizationof a problem'ssolution; contrastswith strategy-basedsolutions. (MyersPsychology for AP 3epp. 304, 370)myelinsheatha fatty tissue layersegmentally encasingthe axons of someneurons; enablesvastly greatertransmission speed asneural impulses hopfrom one node to thenext.CarlWernickean area of the brain (inthe left temporal lobe)involved in languagecomprehension andexpression was namedfor him because hediscovered itbinocularcuea depth cue,such as retinaldisparity, thatdepends on theuse of two eyes.unconditionedresponse(UR)in classical conditioning, anunlearned, naturallyoccurring response (suchas salivation) to anunconditioned stimulus(US) (such as food in themouth). (Myers Psychologyfor AP 3e p. 274)signaldetectiontheorya theory predicting howand when we detect thepresence of a faint stimulus(signal) amid backgroundstimulation (noise).Assumes there is no singleabsolute threshold and thatdetection depends partlyon a person's experience,expectations, motiopticnervethe nerve thatcarries neuralimpulsesfrom the eyeto the brain.rodsretinal receptors thatdetect black, white,and gray, and aresensitive to movement;necessary forperipheral and twilightvision, when conesdon't respond.intensitythe amount of energyin a light wave orsound wave, whichinfluences what weperceive as brightnessor loudness. Intensityis determined by thewave's amplitude(height).parrallelprocessingthe processingof manyaspects of aproblemsimultaneouslyretinathe light-sensitiveinner surface of theeye, containing thereceptor rods andcones plus layers ofneurons that beginthe processing ofvisual information.reinforcementin operantconditioning, anyevent thatstrengthens thebehavior it follows.(Myers Psychologyfor AP 3e p. 284)foveathe central focalpoint in theretina, aroundwhich the eye'scones cluster.JohnB.Watsonbehaviorism; emphasison external behaviorsof people and theirreactions on a givensituation; famous forLittle Albert study inwhich baby was taughtto fear a white ratadrenalglandsa pair of endocrineglands that sit justabove the kidneys andsecrete hormones(epinephrine andnorepinephrine) thathelp arouse the bodyin times of stress.modelingthe process ofobserving andimitating a specificbehavior. (MyersPsychology for AP3e p. 312)axonthe neuron extensionthat passesmessages through itsbranches to otherneurons or tomuscles or glands.perceptualconstancyperceiving objects asunchanging (havingconsistent color,brightness, shape,and size) even asillumination andretinal imageschange.monocularcuea depth cue, suchas interposition orlinear perspective,available to eithereye alone.neurona nerve cell;the basicbuilding blockof the nervoussystem.Weber'slawthe principle that, tobe perceived asdifferent, two stimulimust differ by aconstant minimumpercentage (ratherthan a constantamount).brainstemthe oldest part andcentral core of thebrain, beginning wherethe spinal cord swellsas it enters the skull;the brainstem isresponsible forautomatic survivalfunctionshypothalamusa neural structure lyingbelow (hypo) the thalamus;it directs severalmaintenance activities(eating, drinking, bodytemperature), helps governthe endocrine system viathe pituitary gland, and islinked to emotion andreward.primingthe activation, oftenunconsciously, ofcertain associations,thus predisposingone's perception,memory, orresponse.differencethresholdthe minimum differencebetween two stimulirequired for detection50 percent of the time.We experience thedifference threshold asa just noticeabledifference (or jnd).blindspotthe point at whichthe optic nerveleaves the eye,creating a "blind"spot because noreceptor cells arelocated there.opponent-processtheorythe theory that opposingretinal processes (red-green, blue-yellow, white-black) enable color vision.For example, some cellsare stimulated by greenand inhibited by red; othersare stimulated by red andinhibited by green.frequencythe number ofcompletewavelengths thatpass a point in agiven time (forexample, persecond).primaryreinforceran innatelyreinforcing stimulus,such as one thatsatisfies a biologicalneed. (MyersPsychology for AP 3ep. 286)conditionedresponse(CR)in classicalconditioning, alearned response toa previously neutral(but now conditioned)stimulus (CS). (MyersPsychology for AP 3ep. 274)kinesthesiaour movement sense—our system forsensing the positionand movement ofindividual body arts.EdwardThorndikePioneer in operantconditioning whodiscovered conceptsin instrumentallearning such as thelaw of effect. Knownfor his work with catsin puzzle boxes.occipitallobesportion of thecerebral cortex lyingat the back of thehead; includes areasthat receiveinformation from thevisual fields.motor(efferent)neuronsneurons that carryoutgoinginformation fromthe brain andspinal cord to themuscles andglands.latentlearninglearning that occursbut is not apparentuntil there is anincentive todemonstrate it.(Myers Psychologyfor AP 3e p. 304)thalamusthe brain's sensory controlcenter, located on top ofthe brainstem; it directsmessages to the sensoryreceiving areas in thecortex and transmits repliesto the cerebellum andmedullafrequencytheoryin hearing, the theorythat the rate of nerveimpulses traveling upthe auditory nervematches the frequencyof a tone, thusenabling us to senseits pitch. (Also calledtemporal theory.)splitbraina condition resultingfrom surgery thatisolates the brain'stwo hemispheres bycutting the fibers(mainly those of thecorpus callosum)connecting them.heritabilitythe proportion ofvariation amongindividuals that we canattribute to genes. Theheritability of a traitmay vary, dependingon the range ofpopulations andenvironments studied.interneuronsneurons within thebrain and spinal cordthat communicateinternally andintervene betweenthe sensory inputsand motor outputs.parietallobesportion of thecerebral cortex lyingat the top of the headand toward the rear;receives sensoryinput for touch andbody position.pituitaryglandthe endocrine system'smost influential gland.Under the influence ofthe hypothalamus, thepituitary regulatesgrowth and controlsother endocrineglands.gate-controltheorythe theory that the spinalcord contains aneurological "gate" thatblocks pain signals orallows them to pass on tothe brain. The "gate" isopened by the activity ofpain signals traveling upsmall nerve fibers and isclosed by activity in largfixed-intervalschedulein operant conditioning,a reinforcementschedule thatreinforces a responseonly after a specifiedtime has elapsed.(Myers Psychology forAP 3e p. 288)wavelengththe distance from the peakof one light or sound waveto the peak of the next.Electromagneticwavelengths vary from theshort blips of gamma raysto the long pulses of radiotransmission. (MyersPsychology for AP 3e p.177)medullathe base of thebrainstem;controls heart-beat andbreathing.dendritesa neuron's bushy,branching extensionsthat receivemessages andconduct impulsestoward the cell body.colorconstancyperceiving familiarobjects as havingconsistent color, evenif changingillumination alters thewavelengthsreflected by theobject.sensory(afferent)neuronsneurons that carryincominginformation fromthe sensoryreceptors to thebrain and spinalcordneurotransmitterschemical messengers thatcross the synaptic gapsbetween neurons. Whenreleased by the sendingneuron, neurotransmitterstravel across the synapseand bind to receptor siteson the receiving neuron,thereby influencing whetherthat neuron will geglialcells(glia)cells in the nervoussystem that support,nourish, and protectneurons; they mayalso play a role inlearning and thinking.nervesbundled axons thatform neural "cables"connecting thecentral nervoussystem with muscles,glands, and senseorgans.generalizationthe tendency, once aresponse has beenconditioned, for stimulisimilar to the conditionedstimulus to elicit similarresponses. (In operantconditioning, generalizationoccurs when responseslearned in one situationoccur in other, similarsitudepthperceptionthe ability to seeobjects in threedimensions althoughthe images that strikethe retina are two-dimensional; allowsus to judge distance.irisa ring of muscletissue that forms thecolored portion of theeye around the pupiland controls the sizeof the pupil opening.antagonista molecule that,by binding to areceptor site,inhibits or blocksa response.associationareasareas of the cerebral cortexthat are not involved inprimary motor or sensoryfunctions; rather, they areinvolved in higher mentalfunctions such as learning,remembering, thinking, andspeaking.inattentionalblindnessfailing to seevisible objectswhen ourattention isdirectedelsewhereclassicalconditioninga type of learning in whichwe link two or more stimuli;as a result, to illustrate withPavlov's classicexperiment, the firststimulus (a tone) comes toelicit behavior (drooling) inanticipation of the secondstimulus (food). (MyersPsychologynegativereinforcementincreasing behaviors bystopping or reducingaversive stimuli. A negativereinforcer is any stimulusthat, when removed after aresponse, strengthens theresponse. (Note: Negativereinforcement is notpunishment.) (MyersPsychology for AP 3e p. PaulBrocadiscovered area inthe brain (namedfor him) in the leftfrontal loberesponsible forlanguageproductionfeaturedetectorsnerve cells in thebrain's visual cortexthat respond tospecific features ofthe stimulus, such asshape, angle, ormovement.law ofeffectThorndike's principle thatbehaviors followed byfavorable consequencesbecome more likely, andthat behaviors followed byunfavorable consequencesbecome less likely. (MyersPsychology for AP 3e p.283)lensthe transparentstructure behindthe pupil thatchanges shape tohelp focus imageson the retina.endocrinesystemthe body's "slow"chemicalcommunicationsystem; a set ofglands that secretehormones into thebloodstream.auditionthe senseor act ofhearing.agonista molecule that,by binding to areceptor site,stimulates aresponseneutralstimulus(NS)in classicalconditioning, astimulus that elicitsno response beforeconditioning. (MyersPsychology for AP 3ep. 273)unconditionedstimulus (US)in classical conditioning, astimulus thatunconditionally—naturallyand automatically—triggersan unconditioned responseUR). (Myers Psychology forAP 3e p. 274)neurogenesistheformationof newneurons.middleearthe chamber between theeardrum and cochleacontaining three tiny bones(hammer, anvil, and stirrup)that concentrate thevibrations of the eardrumon the cochlea's ovalwindow.motionparallaxmonocular depthcues in whichobjects closer to usseem to move at afaster pace thanthose that arefarther away,continuousreinforcementschedulereinforcing thedesired responseevery time itoccurs. (MyersPsychology for AP3e p. 287)sensorineuralhearing losshearing loss caused bydamage to thecochlea's receptor cellsor to the auditorynerves; the mostcommon form ofhearing loss, alsocalled nerve deafness.retinaldisparitya binocular cue forperceiving depth. Bycomparing retinal imagesfrom the two eyes, thebrain computes distance—the greater the disparity(difference) between thetwo images, the closer theobjectautonomicnervoussystem(ANS)the part of the peripheralnervous system thatcontrols the glands and themuscles of the internalorgans (such as the heart).Its sympathetic divisionarouses; itsparasympathetic divisioncalms.innerearthe innermost partof the ear,containing thecochlea,semicircularcanals, andvestibular sacs.operantconditioninga type of learning inwhich a behaviorbecomes more likely torecur if followed by areinforcer or less likelyto recur if followed by apunisher. (MyersPsychology for AP 3ep. 283)changeblindnessfailing to noticechanges in theenvironment; aform ofinattentionalblindness.somaticnervoussystemthe division of theperipheral nervoussystem that controlsthe body's skeletalmuscles. (Also calledthe skeletal nervoussystem.)thresholdthe level ofstimulationrequired totrigger a neuralimpulse.cerebellumthe "little brain" at therear of the brainstem;functions includeprocessing sensoryinput, coordinatingmovement output andbalance, and enablingnonverbal learning andmemory.all-or-noneresponsea neuron'sreaction of eitherfiring (with a full-strength response)or not firing.variable-ratioschedulein operant conditioning,a reinforcementschedule thatreinforces a responseafter an unpredictablenumber of responses.(Myers Psychology forAP 3e p. 288)spontaneousrecoverythe reappearance,after a pause, of anextinguishedconditionedresponse. (MyersPsychology for AP 3ep. 276)behaviorgeneticsthe study of therelative power andlimits of geneticand environmentalinfluences onbehavior.Young-Helmholtztrichromatic(three-color)theorythe theory that the retinacontains three differenttypes of color receptors—one most sensitive to red,one to green, one to blue—which, when stimulated incombination, can producethe perception of any colorconditionedstimulus(CS)in classical conditioning, anoriginally neutral stimulusthat, after association withan unconditioned stimulus(US), comes to trigger aconditioned response (CR).(Myers Psychology for AP3e p. 274)reticularformationa nerve network thattravels through thebrainstem andthalamus and playsan important role incontrolling arousal.cochleaa coiled, bony, fluid-filled tube in the innerear; sound wavestraveling through thecochlear fluid triggernerve impulses.phiphenomenonan illusion ofmovement createdwhen two or moreadjacent lights blinkon and off in quicksuccessionconsciousnessourawarenessof ourselvesand ourenvironment.electroencephalogram(EEG)an amplified recordingof the waves ofelectrical activitysweeping across thebrain's surface. Thesewaves are measuredby electrodes placedon the scalp.peripheralnervoussystem(PNS)the sensory andmotor neurons thatconnect thecentral nervoussystem (CNS) tothe rest of thebody.refractoryperioda period ofinactivityafter aneuron hasfired.parasympatheticnervous systemthe division of theautonomicnervous systemthat calms thebody, conservingits energycentralnervoussystem(CNS)the brainand spinalcord.acquisitionin classical conditioning theinitial stage, when one linksa neutral stimulus and anunconditioned stimulus sothat the neutral stimulusbegins triggering theconditioned response. Inoperant conditioning, thestrengthening of areinforced respoB.F.SkinnerBehaviorist thatdeveloped thetheory of operantconditioning bytraining pigeonsand ratslearnedhelplessnessthe hopelessness andpassive resignation ananimal or personlearns when unable toavoid repeatedaversive events.(Myers Psychology forAP 3e p. 307)higher-orderconditioninga procedure in which theconditioned stimulus in oneconditioning experience ispaired with a new neutralstimulus, creating a second(often weaker) conditionedstimulus. For example, ananimal that has learnedthat a tone predicts foodmight thepartial(intermittent)reinforcementschedulereinforcing a response onlypart of the time; results inslower acquisition of aresponse but much greaterresistance to extinctionthan does continuousreinforcement. (MyersPsychology for AP 3e p.287)olfactionthesense ofsmell.limbicsystemneural system(including thehippocampus,amygdala, andhypothalamus) locatedbelow the cerebralhemispheres;associated withemotions and drives.reflexa simple,automaticresponse to asensory stimulus,such as the knee-jerk response.extinctionthe diminishing of aconditioned response; occursin classical conditioning whenan unconditioned stimulus(US) does not follow aconditioned stimulus (CS);occurs in operant conditioningwhen a response is no longerreinforced. (Myers Psychologyplacetheoryin hearing, the theorythat links the pitch wehear with the placewhere the cochlea'smembrane isstimulated.punishmentan event thattends to decreasethe behavior that itfollows. (MyersPsychology for AP3e p. 289)PET(positronemissiontomography)scan a visual displayof brain activity thatdetects where aradioactive form ofglucose goes whilethe brain performs agiven task.dualprocessingthe principle thatinformation is oftensimultaneouslyprocessed onseparate consciousand unconscioustrackssubliminalbelow one'sabsolutethreshold forconsciousawarenessbottom-upprocessinganalysis that beginswith the sensoryreceptors and worksup to the brain'sintegration of sensoryinformation.EdwardTolmancognitivepsychologist;latent learningand cognitivemapAlbertBanduraresearcher famousfor work inobservational orsocial learningincluding thefamous Bobo dollexperimentlesiontissue destruction. Abrain lesion is anaturally orexperimentallycaused destruction ofbrain tissue.variable-intervalschedulein operant conditioning,a reinforcementschedule thatreinforces a responseat unpredictable timeintervals. (MyersPsychology for AP 3ep. 288)pupilthe adjustableopening in thecenter of theeye throughwhich lightenters.secondary(conditioned)reinforcera stimulus thatgains itsreinforcing powerthrough itsassociation with aprimary reinforcerreuptakeaneurotransmitter'sreabsorption bythe sendingneuron.perceptionthe process oforganizing andinterpreting sensoryinformation, enablingus to recognizemeaningful objectsand events.MRI(magneticresonanceimaging)a technique that usesmagnetic fields andradio waves toproduce computer -generated images ofsoft tissue. MRIscans show brainanatomy.cognitivelearningthe acquisition ofmental information,whether by observingevents, by watchingothers, or throughlanguage. (MyersPsychology for AP 3ep. 272)perceptualseta mentalpredispositionto perceiveone thing andnot another.observationallearninglearning byobserving others.(Also called sociallearning.) (MyersPsychology for AP3e p. 312)MichaelGazzanigasplit-brain research;understanding offunctionallateralization in thebrain; how thecerebral hemispherescommunicatecognitivemapa mental representation ofthe layout of one'senvironment. For example,after exploring a maze, ratsact as if they have learneda cognitive map of it.(Myers Psychology for AP3e p. 304)transductionconversion of one formof energy into another.In sensation, thetransforming ofstimulus energies,such as sights,sounds, and smells,into neural impulsesour brain can interpret.corneathe eye's clear,protective outerlayer, coveringthe pupil andiris.motorcortexan area at therear of thefrontal lobesthat controlsvoluntarymovements.pitcha tone'sexperiencedhighness orlowness;depends onfrequency.fixed-ratioschedulein operant conditioning,a reinforcementschedule thatreinforces a responseonly after a specifiednumber of responses.(Myers Psychology forAP 3e p. 288)actionpotentiala neuralimpulse; a briefelectricalcharge thattravels down anaxon.discrimination(1) in classical conditioning,the learned ability todistinguish between aconditioned stimulus andsimilar stimuli that do notsignal an unconditionedstimulus. (In operantconditioning, the ability todistinguish responses thatare reinforcedcerebralcortexthe intricate fabric ofinterconnected neuralcells covering thecerebral hemispheres;the body's ultimatecontrol andinformation-processingcenter.vestibularsenseour sense of bodymovement andposition thatenables our senseof balance.conesretinal receptors thatare concentrated nearthe center of the retinaand that function indaylight or in well-litconditions. Conesdetect fine detail andgive rise to colorsensations.fMRI(functionalMRI)a technique forrevealing bloodflowand, therefore, brainactivity by comparingsuccessive MRI scans.fMRI scans show brainfunction as well as itsstructure.sensoryreceptorssensorynerveendings thatrespond tostimuli.sensationthe process by whichour sensoryreceptors andnervous systemreceive andrepresent stimulusenergies from ourenvironment.nervoussystemthe body's speedy,electrochemicalcommunicationnetwork, consisting ofall the nerve cells ofthe peripheral andcentral nervoussystems.somatosensorycortexarea at the front ofthe parietal lobes thatregisters andprocesses bodytouch and movementsensations.temporallobesportion of thecerebral cortex lyingroughly above theears; includes theauditory areas, eachreceiving informationprimarily from theopposite ear.sympatheticnervoussystemthe division of theautonomic nervoussystem that arousesthe body, mobilizingits energy in stressfulsituations.sensoryadaptationdiminishedsensitivity as aconsequence ofconstantstimulation.habituationdecreasingresponsiveness withrepeated exposure toa stimulus. (MyersPsychology for AP 3epp. 271, 491)shapingan operantconditioning procedurein which reinforcersguide behavior towardcloser and closerapproximations of thedesired behavior.(Myers Psychology forAP 3e p. 284)mirrorneuronsfrontal lobe neurons thatsome scientists believe firewhen we perform certainactions or observe anotherdoing so. The brain'smirroring of another'saction may enable imitationand empathy. (MyersPsychology for AP 3e p.313)RogerSperrylike Gazzaniga,studied split brainpatients; showedthat left/righthemispheres havedifferent functionsamygdalatwo lima-bean-sized neuralclusters in thelimbic system;linked toemotion.endorphins"morphinewithin"—natural,opiate-likeneurotransmitterslinked to paincontrol and topleasure.plasticitythe brain's ability tochange, especiallyduring childhood, byreorganizing afterdamage or bybuilding newpathways based onexperience.corpuscallosumthe large band ofneural fibersconnecting the twobrain hemispheresand carryingmessages betweenthem.hormoneschemicalmessengers that aremanufactured by theendocrine glands,travel through thebloodstream, andaffect other tissues.CT(computedtomography)scan a series of X-rayphotographs takenfrom different anglesand combined bycomputer into acompositerepresentation of aslice of the brain'sstructure.figure-groundthe organization ofthe visual field intoobjects (the figures)that stand out fromtheir surroundings(the ground).conductionhearinglossa less common formof hearing loss,caused by damage tothe mechanicalsystem that conductssound waves to thecochlea.positivereinforcementincreasing behaviors bypresenting positivereinforcers. A positivereinforcer is any stimulusthat, when presented aftera response, strengthensthe response. (MyersPsychology for AP 3e p.285)top-downprocessinginformationprocessing guided byhigher-level mentalprocesses, as whenwe constructperceptions drawingon our experienceand expectations.gestaltan organized whole.Gestalt psychologistsemphasized ourtendency to integratepieces of informationinto meaningfulwholes.huethe dimension ofcolor that isdetermined by thewavelength of light;what we know as thecolor names blue,green, and so forth.IvanPavlovRussian physiologist;discovered classicalconditioning; traineddogs to salivate atthe ringing of a bellsynapsethe junction betweenthe axon tip of thesending neuron andthe dendrite or cellbody of the receivingneuron. The tiny gap atthis junction is calledthe synaptic gap orsynaptic cleft.selectiveattentionthe focusingof consciousawareness ona particularstimulusfrontallobesportion of thecerebral cortex lyingjust behind theforehead; involved inspeaking and musclemovements and inmaking plans andjudgments.insighta sudden realizationof a problem'ssolution; contrastswith strategy-basedsolutions. (MyersPsychology for AP 3epp. 304, 370)myelinsheatha fatty tissue layersegmentally encasingthe axons of someneurons; enablesvastly greatertransmission speed asneural impulses hopfrom one node to thenext.CarlWernickean area of the brain (inthe left temporal lobe)involved in languagecomprehension andexpression was namedfor him because hediscovered itbinocularcuea depth cue,such as retinaldisparity, thatdepends on theuse of two eyes.unconditionedresponse(UR)in classical conditioning, anunlearned, naturallyoccurring response (suchas salivation) to anunconditioned stimulus(US) (such as food in themouth). (Myers Psychologyfor AP 3e p. 274)signaldetectiontheorya theory predicting howand when we detect thepresence of a faint stimulus(signal) amid backgroundstimulation (noise).Assumes there is no singleabsolute threshold and thatdetection depends partlyon a person's experience,expectations, motiopticnervethe nerve thatcarries neuralimpulsesfrom the eyeto the brain.rodsretinal receptors thatdetect black, white,and gray, and aresensitive to movement;necessary forperipheral and twilightvision, when conesdon't respond.intensitythe amount of energyin a light wave orsound wave, whichinfluences what weperceive as brightnessor loudness. Intensityis determined by thewave's amplitude(height).parrallelprocessingthe processingof manyaspects of aproblemsimultaneouslyretinathe light-sensitiveinner surface of theeye, containing thereceptor rods andcones plus layers ofneurons that beginthe processing ofvisual information.reinforcementin operantconditioning, anyevent thatstrengthens thebehavior it follows.(Myers Psychologyfor AP 3e p. 284)foveathe central focalpoint in theretina, aroundwhich the eye'scones cluster.JohnB.Watsonbehaviorism; emphasison external behaviorsof people and theirreactions on a givensituation; famous forLittle Albert study inwhich baby was taughtto fear a white ratadrenalglandsa pair of endocrineglands that sit justabove the kidneys andsecrete hormones(epinephrine andnorepinephrine) thathelp arouse the bodyin times of stress.modelingthe process ofobserving andimitating a specificbehavior. (MyersPsychology for AP3e p. 312)axonthe neuron extensionthat passesmessages through itsbranches to otherneurons or tomuscles or glands.perceptualconstancyperceiving objects asunchanging (havingconsistent color,brightness, shape,and size) even asillumination andretinal imageschange.monocularcuea depth cue, suchas interposition orlinear perspective,available to eithereye alone.neurona nerve cell;the basicbuilding blockof the nervoussystem.Weber'slawthe principle that, tobe perceived asdifferent, two stimulimust differ by aconstant minimumpercentage (ratherthan a constantamount).brainstemthe oldest part andcentral core of thebrain, beginning wherethe spinal cord swellsas it enters the skull;the brainstem isresponsible forautomatic survivalfunctionshypothalamusa neural structure lyingbelow (hypo) the thalamus;it directs severalmaintenance activities(eating, drinking, bodytemperature), helps governthe endocrine system viathe pituitary gland, and islinked to emotion andreward.primingthe activation, oftenunconsciously, ofcertain associations,thus predisposingone's perception,memory, orresponse.differencethresholdthe minimum differencebetween two stimulirequired for detection50 percent of the time.We experience thedifference threshold asa just noticeabledifference (or jnd).blindspotthe point at whichthe optic nerveleaves the eye,creating a "blind"spot because noreceptor cells arelocated there.opponent-processtheorythe theory that opposingretinal processes (red-green, blue-yellow, white-black) enable color vision.For example, some cellsare stimulated by greenand inhibited by red; othersare stimulated by red andinhibited by green.frequencythe number ofcompletewavelengths thatpass a point in agiven time (forexample, persecond).primaryreinforceran innatelyreinforcing stimulus,such as one thatsatisfies a biologicalneed. (MyersPsychology for AP 3ep. 286)conditionedresponse(CR)in classicalconditioning, alearned response toa previously neutral(but now conditioned)stimulus (CS). (MyersPsychology for AP 3ep. 274)kinesthesiaour movement sense—our system forsensing the positionand movement ofindividual body arts.EdwardThorndikePioneer in operantconditioning whodiscovered conceptsin instrumentallearning such as thelaw of effect. Knownfor his work with catsin puzzle boxes.occipitallobesportion of thecerebral cortex lyingat the back of thehead; includes areasthat receiveinformation from thevisual fields.motor(efferent)neuronsneurons that carryoutgoinginformation fromthe brain andspinal cord to themuscles andglands.latentlearninglearning that occursbut is not apparentuntil there is anincentive todemonstrate it.(Myers Psychologyfor AP 3e p. 304)thalamusthe brain's sensory controlcenter, located on top ofthe brainstem; it directsmessages to the sensoryreceiving areas in thecortex and transmits repliesto the cerebellum andmedullafrequencytheoryin hearing, the theorythat the rate of nerveimpulses traveling upthe auditory nervematches the frequencyof a tone, thusenabling us to senseits pitch. (Also calledtemporal theory.)splitbraina condition resultingfrom surgery thatisolates the brain'stwo hemispheres bycutting the fibers(mainly those of thecorpus callosum)connecting them.heritabilitythe proportion ofvariation amongindividuals that we canattribute to genes. Theheritability of a traitmay vary, dependingon the range ofpopulations andenvironments studied.interneuronsneurons within thebrain and spinal cordthat communicateinternally andintervene betweenthe sensory inputsand motor outputs.parietallobesportion of thecerebral cortex lyingat the top of the headand toward the rear;receives sensoryinput for touch andbody position.pituitaryglandthe endocrine system'smost influential gland.Under the influence ofthe hypothalamus, thepituitary regulatesgrowth and controlsother endocrineglands.gate-controltheorythe theory that the spinalcord contains aneurological "gate" thatblocks pain signals orallows them to pass on tothe brain. The "gate" isopened by the activity ofpain signals traveling upsmall nerve fibers and isclosed by activity in largfixed-intervalschedulein operant conditioning,a reinforcementschedule thatreinforces a responseonly after a specifiedtime has elapsed.(Myers Psychology forAP 3e p. 288)wavelengththe distance from the peakof one light or sound waveto the peak of the next.Electromagneticwavelengths vary from theshort blips of gamma raysto the long pulses of radiotransmission. (MyersPsychology for AP 3e p.177)medullathe base of thebrainstem;controls heart-beat andbreathing.dendritesa neuron's bushy,branching extensionsthat receivemessages andconduct impulsestoward the cell body.colorconstancyperceiving familiarobjects as havingconsistent color, evenif changingillumination alters thewavelengthsreflected by theobject.sensory(afferent)neuronsneurons that carryincominginformation fromthe sensoryreceptors to thebrain and spinalcordneurotransmitterschemical messengers thatcross the synaptic gapsbetween neurons. Whenreleased by the sendingneuron, neurotransmitterstravel across the synapseand bind to receptor siteson the receiving neuron,thereby influencing whetherthat neuron will geglialcells(glia)cells in the nervoussystem that support,nourish, and protectneurons; they mayalso play a role inlearning and thinking.nervesbundled axons thatform neural "cables"connecting thecentral nervoussystem with muscles,glands, and senseorgans.generalizationthe tendency, once aresponse has beenconditioned, for stimulisimilar to the conditionedstimulus to elicit similarresponses. (In operantconditioning, generalizationoccurs when responseslearned in one situationoccur in other, similarsitudepthperceptionthe ability to seeobjects in threedimensions althoughthe images that strikethe retina are two-dimensional; allowsus to judge distance.irisa ring of muscletissue that forms thecolored portion of theeye around the pupiland controls the sizeof the pupil opening.antagonista molecule that,by binding to areceptor site,inhibits or blocksa response.associationareasareas of the cerebral cortexthat are not involved inprimary motor or sensoryfunctions; rather, they areinvolved in higher mentalfunctions such as learning,remembering, thinking, andspeaking.inattentionalblindnessfailing to seevisible objectswhen ourattention isdirectedelsewhereclassicalconditioninga type of learning in whichwe link two or more stimuli;as a result, to illustrate withPavlov's classicexperiment, the firststimulus (a tone) comes toelicit behavior (drooling) inanticipation of the secondstimulus (food). (MyersPsychologynegativereinforcementincreasing behaviors bystopping or reducingaversive stimuli. A negativereinforcer is any stimulusthat, when removed after aresponse, strengthens theresponse. (Note: Negativereinforcement is notpunishment.) (MyersPsychology for AP 3e p. PaulBrocadiscovered area inthe brain (namedfor him) in the leftfrontal loberesponsible forlanguageproductionfeaturedetectorsnerve cells in thebrain's visual cortexthat respond tospecific features ofthe stimulus, such asshape, angle, ormovement.law ofeffectThorndike's principle thatbehaviors followed byfavorable consequencesbecome more likely, andthat behaviors followed byunfavorable consequencesbecome less likely. (MyersPsychology for AP 3e p.283)lensthe transparentstructure behindthe pupil thatchanges shape tohelp focus imageson the retina.endocrinesystemthe body's "slow"chemicalcommunicationsystem; a set ofglands that secretehormones into thebloodstream.auditionthe senseor act ofhearing.agonista molecule that,by binding to areceptor site,stimulates aresponseneutralstimulus(NS)in classicalconditioning, astimulus that elicitsno response beforeconditioning. (MyersPsychology for AP 3ep. 273)unconditionedstimulus (US)in classical conditioning, astimulus thatunconditionally—naturallyand automatically—triggersan unconditioned responseUR). (Myers Psychology forAP 3e p. 274)neurogenesistheformationof newneurons.middleearthe chamber between theeardrum and cochleacontaining three tiny bones(hammer, anvil, and stirrup)that concentrate thevibrations of the eardrumon the cochlea's ovalwindow.motionparallaxmonocular depthcues in whichobjects closer to usseem to move at afaster pace thanthose that arefarther away,continuousreinforcementschedulereinforcing thedesired responseevery time itoccurs. (MyersPsychology for AP3e p. 287)sensorineuralhearing losshearing loss caused bydamage to thecochlea's receptor cellsor to the auditorynerves; the mostcommon form ofhearing loss, alsocalled nerve deafness.retinaldisparitya binocular cue forperceiving depth. Bycomparing retinal imagesfrom the two eyes, thebrain computes distance—the greater the disparity(difference) between thetwo images, the closer theobjectautonomicnervoussystem(ANS)the part of the peripheralnervous system thatcontrols the glands and themuscles of the internalorgans (such as the heart).Its sympathetic divisionarouses; itsparasympathetic divisioncalms.innerearthe innermost partof the ear,containing thecochlea,semicircularcanals, andvestibular sacs.operantconditioninga type of learning inwhich a behaviorbecomes more likely torecur if followed by areinforcer or less likelyto recur if followed by apunisher. (MyersPsychology for AP 3ep. 283)changeblindnessfailing to noticechanges in theenvironment; aform ofinattentionalblindness.somaticnervoussystemthe division of theperipheral nervoussystem that controlsthe body's skeletalmuscles. (Also calledthe skeletal nervoussystem.)thresholdthe level ofstimulationrequired totrigger a neuralimpulse.cerebellumthe "little brain" at therear of the brainstem;functions includeprocessing sensoryinput, coordinatingmovement output andbalance, and enablingnonverbal learning andmemory.all-or-noneresponsea neuron'sreaction of eitherfiring (with a full-strength response)or not firing.variable-ratioschedulein operant conditioning,a reinforcementschedule thatreinforces a responseafter an unpredictablenumber of responses.(Myers Psychology forAP 3e p. 288)spontaneousrecoverythe reappearance,after a pause, of anextinguishedconditionedresponse. (MyersPsychology for AP 3ep. 276)behaviorgeneticsthe study of therelative power andlimits of geneticand environmentalinfluences onbehavior.Young-Helmholtztrichromatic(three-color)theorythe theory that the retinacontains three differenttypes of color receptors—one most sensitive to red,one to green, one to blue—which, when stimulated incombination, can producethe perception of any colorconditionedstimulus(CS)in classical conditioning, anoriginally neutral stimulusthat, after association withan unconditioned stimulus(US), comes to trigger aconditioned response (CR).(Myers Psychology for AP3e p. 274)reticularformationa nerve network thattravels through thebrainstem andthalamus and playsan important role incontrolling arousal.cochleaa coiled, bony, fluid-filled tube in the innerear; sound wavestraveling through thecochlear fluid triggernerve impulses.phiphenomenonan illusion ofmovement createdwhen two or moreadjacent lights blinkon and off in quicksuccessionconsciousnessourawarenessof ourselvesand ourenvironment.electroencephalogram(EEG)an amplified recordingof the waves ofelectrical activitysweeping across thebrain's surface. Thesewaves are measuredby electrodes placedon the scalp.peripheralnervoussystem(PNS)the sensory andmotor neurons thatconnect thecentral nervoussystem (CNS) tothe rest of thebody.refractoryperioda period ofinactivityafter aneuron hasfired.parasympatheticnervous systemthe division of theautonomicnervous systemthat calms thebody, conservingits energycentralnervoussystem(CNS)the brainand spinalcord.acquisitionin classical conditioning theinitial stage, when one linksa neutral stimulus and anunconditioned stimulus sothat the neutral stimulusbegins triggering theconditioned response. Inoperant conditioning, thestrengthening of areinforced respoB.F.SkinnerBehaviorist thatdeveloped thetheory of operantconditioning bytraining pigeonsand ratslearnedhelplessnessthe hopelessness andpassive resignation ananimal or personlearns when unable toavoid repeatedaversive events.(Myers Psychology forAP 3e p. 307)higher-orderconditioninga procedure in which theconditioned stimulus in oneconditioning experience ispaired with a new neutralstimulus, creating a second(often weaker) conditionedstimulus. For example, ananimal that has learnedthat a tone predicts foodmight thepartial(intermittent)reinforcementschedulereinforcing a response onlypart of the time; results inslower acquisition of aresponse but much greaterresistance to extinctionthan does continuousreinforcement. (MyersPsychology for AP 3e p.287)olfactionthesense ofsmell.limbicsystemneural system(including thehippocampus,amygdala, andhypothalamus) locatedbelow the cerebralhemispheres;associated withemotions and drives.reflexa simple,automaticresponse to asensory stimulus,such as the knee-jerk response.extinctionthe diminishing of aconditioned response; occursin classical conditioning whenan unconditioned stimulus(US) does not follow aconditioned stimulus (CS);occurs in operant conditioningwhen a response is no longerreinforced. (Myers Psychologyplacetheoryin hearing, the theorythat links the pitch wehear with the placewhere the cochlea'smembrane isstimulated.punishmentan event thattends to decreasethe behavior that itfollows. (MyersPsychology for AP3e p. 289)PET(positronemissiontomography)scan a visual displayof brain activity thatdetects where aradioactive form ofglucose goes whilethe brain performs agiven task.dualprocessingthe principle thatinformation is oftensimultaneouslyprocessed onseparate consciousand unconscioustrackssubliminalbelow one'sabsolutethreshold forconsciousawarenessbottom-upprocessinganalysis that beginswith the sensoryreceptors and worksup to the brain'sintegration of sensoryinformation.EdwardTolmancognitivepsychologist;latent learningand cognitivemapAlbertBanduraresearcher famousfor work inobservational orsocial learningincluding thefamous Bobo dollexperimentlesiontissue destruction. Abrain lesion is anaturally orexperimentallycaused destruction ofbrain tissue.variable-intervalschedulein operant conditioning,a reinforcementschedule thatreinforces a responseat unpredictable timeintervals. (MyersPsychology for AP 3ep. 288)pupilthe adjustableopening in thecenter of theeye throughwhich lightenters.secondary(conditioned)reinforcera stimulus thatgains itsreinforcing powerthrough itsassociation with aprimary reinforcerreuptakeaneurotransmitter'sreabsorption bythe sendingneuron.perceptionthe process oforganizing andinterpreting sensoryinformation, enablingus to recognizemeaningful objectsand events.MRI(magneticresonanceimaging)a technique that usesmagnetic fields andradio waves toproduce computer -generated images ofsoft tissue. MRIscans show brainanatomy.cognitivelearningthe acquisition ofmental information,whether by observingevents, by watchingothers, or throughlanguage. (MyersPsychology for AP 3ep. 272)perceptualseta mentalpredispositionto perceiveone thing andnot another.observationallearninglearning byobserving others.(Also called sociallearning.) (MyersPsychology for AP3e p. 312)MichaelGazzanigasplit-brain research;understanding offunctionallateralization in thebrain; how thecerebral hemispherescommunicatecognitivemapa mental representation ofthe layout of one'senvironment. For example,after exploring a maze, ratsact as if they have learneda cognitive map of it.(Myers Psychology for AP3e p. 304)transductionconversion of one formof energy into another.In sensation, thetransforming ofstimulus energies,such as sights,sounds, and smells,into neural impulsesour brain can interpret.corneathe eye's clear,protective outerlayer, coveringthe pupil andiris.motorcortexan area at therear of thefrontal lobesthat controlsvoluntarymovements.pitcha tone'sexperiencedhighness orlowness;depends onfrequency.fixed-ratioschedulein operant conditioning,a reinforcementschedule thatreinforces a responseonly after a specifiednumber of responses.(Myers Psychology forAP 3e p. 288)actionpotentiala neuralimpulse; a briefelectricalcharge thattravels down anaxon.discrimination(1) in classical conditioning,the learned ability todistinguish between aconditioned stimulus andsimilar stimuli that do notsignal an unconditionedstimulus. (In operantconditioning, the ability todistinguish responses thatare reinforcedcerebralcortexthe intricate fabric ofinterconnected neuralcells covering thecerebral hemispheres;the body's ultimatecontrol andinformation-processingcenter.vestibularsenseour sense of bodymovement andposition thatenables our senseof balance.conesretinal receptors thatare concentrated nearthe center of the retinaand that function indaylight or in well-litconditions. Conesdetect fine detail andgive rise to colorsensations.fMRI(functionalMRI)a technique forrevealing bloodflowand, therefore, brainactivity by comparingsuccessive MRI scans.fMRI scans show brainfunction as well as itsstructure.sensoryreceptorssensorynerveendings thatrespond tostimuli.sensationthe process by whichour sensoryreceptors andnervous systemreceive andrepresent stimulusenergies from ourenvironment.nervoussystemthe body's speedy,electrochemicalcommunicationnetwork, consisting ofall the nerve cells ofthe peripheral andcentral nervoussystems.somatosensorycortexarea at the front ofthe parietal lobes thatregisters andprocesses bodytouch and movementsensations.temporallobesportion of thecerebral cortex lyingroughly above theears; includes theauditory areas, eachreceiving informationprimarily from theopposite ear.sympatheticnervoussystemthe division of theautonomic nervoussystem that arousesthe body, mobilizingits energy in stressfulsituations.sensoryadaptationdiminishedsensitivity as aconsequence ofconstantstimulation.habituationdecreasingresponsiveness withrepeated exposure toa stimulus. (MyersPsychology for AP 3epp. 271, 491)shapingan operantconditioning procedurein which reinforcersguide behavior towardcloser and closerapproximations of thedesired behavior.(Myers Psychology forAP 3e p. 284)mirrorneuronsfrontal lobe neurons thatsome scientists believe firewhen we perform certainactions or observe anotherdoing so. The brain'smirroring of another'saction may enable imitationand empathy. (MyersPsychology for AP 3e p.313)RogerSperrylike Gazzaniga,studied split brainpatients; showedthat left/righthemispheres havedifferent functionsamygdalatwo lima-bean-sized neuralclusters in thelimbic system;linked toemotion.endorphins"morphinewithin"—natural,opiate-likeneurotransmitterslinked to paincontrol and topleasure.plasticitythe brain's ability tochange, especiallyduring childhood, byreorganizing afterdamage or bybuilding newpathways based onexperience.corpuscallosumthe large band ofneural fibersconnecting the twobrain hemispheresand carryingmessages betweenthem.hormoneschemicalmessengers that aremanufactured by theendocrine glands,travel through thebloodstream, andaffect other tissues.CT(computedtomography)scan a series of X-rayphotographs takenfrom different anglesand combined bycomputer into acompositerepresentation of aslice of the brain'sstructure.figure-groundthe organization ofthe visual field intoobjects (the figures)that stand out fromtheir surroundings(the ground).

AP PSYCH- Units 3, 4 & 5 - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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