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AP Psychology Chapter 4 Flashcards

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8184127099SensationDetecting physical energy from the environment and encoding it as neural signals0
8184127100Bottom-Up ProcessingAnalysis that begins with the sensory receptors and works up to the brain's integration of sensory information. Externally Driven.1
8184127101PerceptionSelecting, organizing, and interpreting what comes in your window as meaningful objects and events.2
8184127102Top-Down ProcessingGuided by higher level mental processes, such as experience, motivation, and expectations3
8184127103Perceptual AdaptationAbility to adjust to an artificially displaced field4
8184127104PsychophysicsThe study of how physical energy relates to our psychological experience5
8184127105TransductionConversion of one form of energy into another6
8184127106Absolute ThresholdThe minimum stimulation needed to detect a particular stimulus 50% of the time7
8184127107Difference Threshold (JND)The minimum difference a person can detect between any 2 stimuli 50% of the time8
8184127108Weber's LawDifference thresholds differ by a constant percentage rather than a constant amount.9
8184127109Signal Detection TheoryPredicts when we will detect weak stimuli amid background noise Depends on experience, expectations, motivation, and fatigue level10
8184127110Subliminal MessagesStimuli below one's absolute threshold Unconsciously sensed Works to an extent11
8184127111Sensory AdaptationDiminished sensitivity as a consequence of constant stimulation12
8184127112WavelengthDetermines Hue13
8184127113AmplitudeDetermines Brightness14
8184127114PupilA small adjustable opening in the center of the eye through which light enters15
8184127115IrisA ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil's opening16
8184127116CorneaProtects the eye and bends light to provide focus17
8184127117LensThe transparent structure behind the pupil that changes shape to help focus objects on the retina18
8184127118AccomodationLens changes shape to focus near or far images on the retina19
8184127119RetinaLight sensitive inner surface of the eye containing the receptor rods and cones plus layers of neurons that begin the processing of visual information20
8184127120Optic NerveThe nerve that carries neural impulses from the eye to the brain21
8184127121Blind SpotThe point at which the optic nerve leaves the eye No receptor cells Brain fills the "hole" without permission22
8184127122FoveaThe central focal point in the retina23
8184127123AcuityResolution24
8184127124NearsightednessToo much curvature of the cornea/lens Near objects are more clear25
8184127125FarsightednessNot enough curvature of the cornea/lens Far objects are more clear26
8184127126RodsRetinal receptors that detect black, white, and grey Necessary for peripheral vision27
8184127127ConesRetinal receptors that are concentrated near the center of the retina Detect fine detail and give rise to color sensations28
8184127128Feature DetectorsNerve cells in the brain the respond to specific features of the stimulus, such as shape, angles, or movement29
8184127129Parallel ProcessingThe processing of many aspects of a problem simultaneously30
8184127130Trichromatic Theory of Color VisionThe eye has 3 types of color receptors (red, green, and blue) Cones work in 3's31
8184127131Color BlindPeople who lack a chemical produced by one or more types of cones32
8184127132Opponent Process Theory of Color VisionCertain neurons can be either excited or inhibited depending on the wavelength of light Complementary wavelengths have opposite effects.33
8184127133WavelengthPitch Measured in Hz (Hertz)34
8184127134AmplitudeLoudness35
8184127135DecibelsUnit of measurement for sound (dB)36
8184127136Transduction in the EarVibration/mechanical energy -> neural impulses37
8184127137Hair CellsBent by the vibrations and transduce mechanical energy to neural impulses In the cochlea38
8184127138Frequency TheoryThe theory that the rate of nerve impulses travelling up the auditory nerve matches the frequency of a sound (Explains low-pitch)39
8184127139Place TheoryThe theory that links pitch with the place where the cochlea's membrane is stimulated.40
8184127140Conduction DeafnessCaused by damage to the mechanical system that conducts sound waves to the cochlea41
8184127141Sensorineural DeafnessCaused by damage to the cochlea's receptor cells or to the auditory nerves42
8184127142Four Skin SensesPressure, Warmth, Cold, and Pain43
8184127143Gate Control Theory of PainThe spinal cord contains a neurological "gate" that blocks pain signals or allows them to pass onto the brain44
8184127144Five Taste SensationsSweet. Salty, Bitter, Sour, Umami45
8184127145Gestalt PsychologyEmphasize the tendency to integrate pieces of information into meaningful wholes46
8184127146Figure Ground RelationshipThe organization of the visual field into objects that stand out from their surroundings47
8184127147ProximityWe group nearby objects together48
8184127148SimilarityWe group similar objects together49
8184127149ContinuityWe perceive smooth continuous patterns rather than disconnected ones50
8184127150ConnectednessUniform and Linked51
8184127151Depth PerceptionThe ability to see objects in 3D although the images that strike the retina are 2D Allows us to judge distance52
8184127152Monocular CuesAvailable to either eye alone53
8184127153Linear PerspectiveParallel lines appear to converge with distance The more they converge, the greater their perceived distance54
8184127154InterpositionIf one object partially blocks our view of another, we perceive it as closer55
8184127155Relative SizeIf we assume 2 objects are similar in size, most people perceive the one that casts the smaller retinal image as farther away56
8184127156Relative HeightWe perceive objects higher in our field of vision as farther away57
8184127157Light and ShadowNearby objects reflect more light to our eyes Dimmer seems farther away58
8184127158Binocular CuesDepends on both eyes59
8184127159Retinal DisparityBy comparing the images from the retinas in the 2 eyes, the brain computes distance Greater the difference/disparity the closer the object60
8184127160Phi PhenomenonAn illusion of movement created when two or more adjacent lights blink on and off in quick succession61
8184127161Perceptual ConstancyPerceiving objects as unchanging even as illumination and retinal images change Consistent shape, size, lightness, and color62
8184127162Perceptual SetA mental predisposition to perceive one thing and not another63
8184127163Extrasensory Perception (ESP)Claim that perception can occur apart from sensory input64
8184127164TelepathyOne person sending thoughts to another or perceiving another's thoughts65
8184127165ClairvoyancePerceiving remote events66
8184127166PrecognitionPerceiving future events67
8184127167Psychokinesis"Mind over matter"68
8184127168Visual CaptureThe tendency for vision to dominate the other senses69
8184127169PapillaeTiny bumps on the surface of the tongue covered in taste buds70
81841271705 Taste SensationsSweet, salty, bitter, sour, umami71
8184127171Olfactory BulbBrain structure responsible for our sense of smell Processes info about odors after receiving sensory input form the nose72
8184127172Kinesthetic SenseThe system for sensing the position and movement of individual body parts73
8184127173Vestibular SenseThe sense of body movement and position, including the sense of balance74
8184127174Selective AttentionThe focusing of conscious awareness on a particular stimulus75
8184127175Cocktail Party EffectBeing able to focus one's attention on a particular stimulus while filtering out a range of other stimuli76
8184127176Inattentional BlindnessFailing to see visible objects when our attention is directed elsewhere77
8184127177Change BlindnessFailing to notice change in the environment78
8184127178Visual Cliff ExperimentTested depth perception in infants79
8184127179Human 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 use80
8184127180ParapsychologyThe study of paranormal phenomena Including ESP and Psychokinesis81
8184127181DecibelsUnit of measurement for sound (dB)82
8184127182Transduction in the Ear83

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