AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

AP Psychology Chapter 4 Flashcards

Terms : Hide Images
7659919580SensationDetecting physical energy from the environment and encoding it as neural signals0
7659956547sensation begins withstimulus1
7659919581Bottom-Up Processingelements to a whole HUBEL AND WEISEL high specialized feature detectors 1.detect specific stimulus 2.combine specific features into more complex forms 3.recognize stimulus tim consuming2
7659919582PerceptionSelecting, organizing, and interpreting what comes in your window as meaningful objects and events.3
7661384070subjective contoursinvolves the perception of contours where none actually exists4
7659919583Top-Down Processingwhole to elements 1.formulate perceptual hypothesis about nature of stimulus as a whole 2.select and examine features to check hypothesis 3.recognize stimulus5
7659919584Perceptual AdaptationAbility to adjust to an artificially displaced field6
7661396419gestalt psychologywhole is greater than sum of its parts7
7661399282phi phenomenonillusion of movement created by presenting visual stimuli in rapid succession8
7659919585PsychophysicsThe study of how physical stimuli relates to our psychological experience9
7659936497WHO PSYCHOPHYSICSGUSTAV FECHNER10
7659919586TransductionConversion of one form of energy into another11
7659919587Absolute ThresholdThe minimum stimulation needed to detect a particular stimulus 50% of the time12
7661459026Depth perceptioninvolves interpretation of visual cues that indicate how near or far away objects are rely on binocular and monocular cues13
7659969125Hearing (ABT)tick of watch under quiet conditions at 20 ft14
7659960476Vision (ABT)a candle flame seen at 30 miles on a dark clear night15
7659973203Taste (ABT)one teaspoon sugar in two gallons water16
7659979363smell (ABT)one drop of perfume diffused into the entire volume of a 6 room apartment17
7659988644Touch (ABT)the wing of a fly falling on your cheek from a distance of 1 cm18
7660003486just noticeable difference analogyradar HIT: detect signal when present MISS: dont detect signal when present FALSE ALARM: Detect signal when not present Correct rejection: no detect signal when it isn't there19
7660394642receptive field visual cellretinal area that, when stimulated, affects the firing of that cell rate of firing increased by light in the center of its receptive field; decreased by light in receptive area20
7659919588Difference Threshold (JND)The minimum difference a person can detect between any 2 stimuli 50% of the time21
7660031503subliminal perceptionthe registration of sensory input without conscious awareness WEAK EFFECTS22
7660042585James Vicrayhidden pictures of eat popcorn increase in popcorn sales (most sexual) ILLEGAL23
7660061478Karremans,Strobe,ClausLipton iced tea without awareness said they were thirsty Massar and Bunk:sexy and unattractive people=jealousy24
7659919589Weber's LawDifference thresholds differ by a constant percentage rather than a constant amount.25
7659919590Signal Detection TheoryPredicts when we will detect weak stimuli amid background noise Depends on experience, expectations, motivation, and fatigue level26
7659919591Subliminal MessagesStimuli below one's absolute threshold Unconsciously sensed Works to an extent27
7659919592Sensory AdaptationDiminished sensitivity as a consequence of constant stimulation28
7660088245stay in kitchen don't remove garbage starts to smell bad after a while don't smell it pool cold then warmsensory adaptation29
7659919593WavelengthDetermines Hue distance between peaks30
7660457988optic chiasmpoint at which the optic nerves from the inside of each eye cross over then project to the opposite half of the brain signals from both eyes go to both hemispheres of the brain31
7660485981after reaching optic chaismoptic nerve fibers diverge along two pathways: lateral geniculate supper colliculus32
7660859649complementary colorsare pairs of colors that produces gray tones when mixed together color circle33
7660868669afterimagevisual image that persists after a stimulus is removed complementary color no trichromatic34
7660548026lateral geniculate90% axons connect to from retinas to synapses visual signals processed in LGN distributed in occipiatal lobe (makes up primary visual cortex) perception of: color.form,contrast, and motion, projects into thalamus, brain's major relay station35
7660570134super colliculus2nd pathway from optic chiasm area in midbrain then to thalamus and occipital lobe perception:of motion,cordinationof visual input w other sensory input36
7660624823HUBEL & WIESELdiscovered solution to cortical cells in occipital lobe respond to light micro electrodes on primary visual cortex to record action potentials from individual cells flash light projector slides had a crack in it when the slide removed the cell's receptive field and cell fired crazy in response to moving dark line37
7660673530simple cellsrespond best to a line of correct width,oritented at the correct angle, located in correct position of its receptor filed38
7660684313complex cellsthey respond to any position in receptive field; highly specialized39
7660692663feature detectorsneurons that respond selectively to very specific features of a more complex stimuli40
7660728754neaurons that respond to facial stimulimay have adaption over evolution for animals41
7660717574visual agnosiaan inability to recognize objects damage to ventral stream42
7660738707prosopagnosiainability to recognize familiar faces damage to neural circuits that are sensitive to face stimuli43
7660771665Greeblesneurons that serve as face detectors rewired to be responsive to other visual forms BRAIN IS PLASTIC44
7660705424after visual input processed in pvcventral stream: what objects are out there dorsal stream: where the objects are45
7660099425purityhow varied the mix is46
7660103182saturationrelative amount of whiteness in a color (intensity of color) gray to blue47
7659919594AmplitudeDetermines Brightness height48
7660115690ultravioletinsects see shorter wavelengths than humans (visible light) fish and reptiles see infared49
7659919595PupilA small adjustable opening in the center of the eye through which light enters rear chamber of eye pupils constricted let less light into eye dilated (opened more) let more light into eye image is less sharp; in dim light bc retina has the light so more visible50
7659919596IrisA ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil's opening51
7659919597CorneaProtects the eye and bends light to provide focus52
7659919598LensThe transparent structure behind the pupil that changes shape to help focus objects on the retina53
7659919599AccomodationLens changes shape to focus near or far images on the retina focus on a close subject lens of a eye fatter (rounder) far object (lens flatten out)54
7659919600Retinaneural tissue lining the inside back surface of the eye; it absorbs light, processes images , and sends visual info back to the brain55
7660217621optic diskhole in retina where optic fibers exit the eye run from retina to the brain56
7659919601Optic NerveThe nerve that carries neural impulses from the eye to the brain57
7659919602Blind SpotThe point at which the optic nerve leaves the eye No receptor cells Brain fills the "hole" without permission58
7659919603Foveathe tiny spot in center of the retina that contains only cones; visual acuity greatest at this spot move ur eyes so centered in fovea59
7659919604AcuityResolution60
7659919605NearsightednessToo much curvature of the cornea/lens Near objects are more clear61
7659919606FarsightednessNot enough curvature of the cornea/lens Far objects are more clear62
7659919607RodsRetinal receptors that play a key role in night vision and peripheral vision 100x more sensitive dim light outnumber cones in periphery avery ur gaze up or below to area outside fovea less light;astronomers63
7660296702dark adaptationprocess in which eyes become more sensitive to light in low illumination declining absolute threshold over time means you need less and less light to see complete after 30 minutes a lot in first 10 min ex:emerging from a dark theater on a sunny day squint to avoid light64
7660325044light adaptationprocess whereby the eyes become less sensitive to light in high illumination (improves visual acuity) chemical changes in rods and cones but neural changes in receptors and elsewhere in retina65
7659919608ConesRetinal receptors that are concentrated near the center of the retina Detect fine detail and give rise to color sensations daylight vision and color vision do not respond well in dim light; more visual acuity sharpness and precise detail-than rods66
7659919609Feature DetectorsNerve cells in the brain the respond to specific features of the stimulus, such as shape, angles, or movement67
7659919610Parallel ProcessingThe processing of many aspects of a problem simultaneously68
7659919611Trichromatic Theory of Color VisionThe eye has 3 types of color receptors (red, green, and blue) Cones work in 3's thomas young,Hermna helmholtz69
7659919612Color BlindPeople who lack a chemical produced by one or more types of cones dichromats:only two types of color receptors three types: insesntitive red, green, or blue (not likely)70
7659919614WavelengthPitch Measured in Hz (Hertz)71
7659919613Opponent Process Theory of Color Visioncolor perception depends on receptors that make opposite responses to three pairs of colors red vs green black vs white yellow vs blue explanation afterimage72
7661049862both theories explain color visionGeorge Wald eye has three types of cones sensitive to a different band of wavelengths three cones three diff colors receptors trichromatic theory73
7661233732cells in retina,LGN,visual cortex respondoppositely to red vs green black vs yellow ganglion excited by green inhibited by red74
7661246449redmarks error and warning subjects with red book scored lower than subjects with green book (Elliot)75
7661260385reversible figuredrawing that is compatible with two interpretations that can shift back and forth rabbit or duck76
7661278274same visual input can result in radically different perceptionsno one to one correspondence exists between sensory and what you perceive duck or rabbit77
7661286106perceptual setreadiness to percieve a stimulus in a certain way circus act of trained seal bias about how someone interprets sensory input78
7661323482feature analysisprocess of detecting specific elements in visual input and assembling them into a more complex form lines ,edges, corners squares triangles stop signs bicycles79
7661303182inattention blindnessinvolves failure to see visual objects or events because one's attention is found elsewhere watch a video lady wearing umbrella busy ex:automobile accidents80
7659919615AmplitudeLoudness81
7659919616DecibelsUnit of measurement for sound (dB)82
7659919617Transduction in the EarVibration/mechanical energy -> neural impulses83
7659919618Hair CellsBent by the vibrations and transduce mechanical energy to neural impulses In the cochlea84
7659919619Frequency TheoryThe theory that the rate of nerve impulses travelling up the auditory nerve matches the frequency of a sound (Explains low-pitch)85
7659919620Place TheoryThe theory that links pitch with the place where the cochlea's membrane is stimulated.86
7659919621Conduction DeafnessCaused by damage to the mechanical system that conducts sound waves to the cochlea87
7659919622Sensorineural DeafnessCaused by damage to the cochlea's receptor cells or to the auditory nerves88
7659919623Four Skin SensesPressure, Warmth, Cold, and Pain89
7659919624Gate Control Theory of PainThe spinal cord contains a neurological "gate" that blocks pain signals or allows them to pass onto the brain90
7659919625Five Taste SensationsSweet. Salty, Bitter, Sour, Umami91
7659919626Gestalt PsychologyEmphasize the tendency to integrate pieces of information into meaningful wholes92
7659919627Figure Ground RelationshipThe organization of the visual field into objects that stand out from their surroundings93
7659919628ProximityWe group nearby objects together94
7659919629SimilarityWe group similar objects together95
7659919630ContinuityWe perceive smooth continuous patterns rather than disconnected ones96
7661413713perceptual hypothesisan interference about what form could be responsible for a pattern of sensory stimulation trapezoidal image but u correctly guess a square97
7659919631ConnectednessUniform and Linked98
7659919632Depth PerceptionThe ability to see objects in 3D although the images that strike the retina are 2D Allows us to judge distance99
7659919633Monocular CuesAvailable to either eye alone100
7659919634Linear PerspectiveParallel lines appear to converge with distance The more they converge, the greater their perceived distance101
7659919635InterpositionIf one object partially blocks our view of another, we perceive it as closer102
7659919636Relative SizeIf we assume 2 objects are similar in size, most people perceive the one that casts the smaller retinal image as farther away103
7659919637Relative HeightWe perceive objects higher in our field of vision as farther away104
7659919638Light and ShadowNearby objects reflect more light to our eyes Dimmer seems farther away105
7659919639Binocular CuesDepends on both eyes106
7661489209linear perspectivedepth cue reflecting the fact that lines converge in the distance107
7659919641Phi PhenomenonAn illusion of movement created when two or more adjacent lights blink on and off in quick succession108
7661525632height in planedistant objects appear higher in picture109
7661542136visual illusioninvolves an apparently inexplicable discrepancy between the appearance of a visual stimulus and its physical reality110
7661537685perceptual constancytendency to experience a stable perception in the face of continually changing sensory input111
7659919642Perceptual ConstancyPerceiving objects as unchanging even as illumination and retinal images change Consistent shape, size, lightness, and color112
7661520515texture gradientsprovide info on depth113
7661507865convergenceinvolves sensing the eyes converging toward each other as they focus on closer objects114
7659919640Retinal DisparityBy comparing the images from the retinas in the 2 eyes, the brain computes distance Greater the difference/disparity the closer the object binocular depth cue115
7659919643Perceptual SetA mental predisposition to perceive one thing and not another116
7661436776necker cubefront or rear which face context guides peoples hypotheses117
7661448324the catsee an h in first one and a a in second created by top down processing118
7659919644Extrasensory Perception (ESP)Claim that perception can occur apart from sensory input119
7659919645TelepathyOne person sending thoughts to another or perceiving another's thoughts120
7659919646ClairvoyancePerceiving remote events121
7659919647PrecognitionPerceiving future events122
7659919648Psychokinesis"Mind over matter"123
7659919649Visual CaptureThe tendency for vision to dominate the other senses124
7659919650PapillaeTiny bumps on the surface of the tongue covered in taste buds125
76599196515 Taste SensationsSweet, salty, bitter, sour, umami126
7659919652Olfactory BulbBrain structure responsible for our sense of smell Processes info about odors after receiving sensory input form the nose127
7659919653Kinesthetic SenseThe system for sensing the position and movement of individual body parts128
7659919654Vestibular SenseThe sense of body movement and position, including the sense of balance129
7659919655Selective AttentionThe focusing of conscious awareness on a particular stimulus130
7659919656Cocktail Party EffectBeing able to focus one's attention on a particular stimulus while filtering out a range of other stimuli131
7660363037optic nervecollections of axons from ganglion cells that connect eye with brain axon depart from eye through optic disk carry visual info neural impulses to brain132
7659919657Inattentional BlindnessFailing to see visible objects when our attention is directed elsewhere133
7659919658Change BlindnessFailing to notice change in the environment134
7659919659Visual Cliff ExperimentTested depth perception in infants135
7659919660Human Factors PsychologyA branch of psychology the explore how people and machines interact and how machines and physical environments can be made safe and easy to use136
7659919661ParapsychologyThe study of paranormal phenomena Including ESP and Psychokinesis137
7659919662DecibelsUnit of measurement for sound (dB)138
7659919663Transduction in the Ear139
7660789431subtractive color mixingmoving some wavelengths flight,leaving less light thanks originally there paints yellow blue block out certain wavelengths middle green140
7660803591additive color mixingsuperimposing lights, putting motor light in the mixture than exists in any one light itself lights red, green,blue141

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!