front 1 sensation | back 1 senses collect info from environment and convert it to signals that travel through the brain |
front 2 perception | back 2 the process by which the brain organizes and interprets sensory input |
front 3 tranduction | back 3 transforms stimulus energy into electrochemical energy of neural impulses for all the senses except for smell |
front 4 bottom- up processing | back 4 taking sensory information and assembling it until an object is formed in minds |
front 5 top- down processing | back 5 processing and perceiving new information you encounter with things you already know |
front 6 psychophysics | back 6 studies how physical energy affects our psychological experiences |
front 7 sensory adaptaion | back 7 the diminished sensitivity as a consequence of constant stimulation |
front 8 absolute threshhold | back 8 the smallest level of stimulus that can be detected at least half of the time |
front 9 signal detection theory | back 9 predicts that the intensity of stimuli and state of the person affects whether or not they are able to detect the stimuli |
front 10 subliminal sensation | back 10 stimuli that are under your absolute threshold for conscious awareness |
front 11 difference threshold | back 11 minimum difference person can detect between 2 stimuli half the time |
front 12 webers law | back 12 2 stimuli must differ by a constant minimum percentage to be perceived different |
front 13 selective attention | back 13 when we focus on one particular stimuli in our environment and ignore the rest |
front 14 inattentional blindness | back 14 when our focus is directed at one stimulus, leaving us blind to other stimuli |
front 15 change blindness | back 15 when a stimulus undergoes a change without being noticed by its observer due to visual interruptions |
front 16 pupil | back 16 the adjustable opening in the center of the eye through which light enters |
front 17 iris | back 17 a colored muscle that dilates or constricts in response to light intensity or inner emotions |
front 18 lens | back 18 the transparent structure behind the pupil that changes shape to help focus images in the retina |
front 19 retina | back 19 light- sensitive inner surface of the eye which contains the receptor rods and cones and neurons |
front 20 rods | back 20 receptor cells in the retina responsible for detecting light in general |
front 21 cones | back 21 receptor cells that are responsible for color vision and visual adaptation to changes in light |
front 22 fovea | back 22 the retinas central area of focus, where most cones are clustered around |
front 23 optic nerve | back 23 the nerve that carries visual information to the brain |
front 24 blind spot | back 24 the point at which the optic nerve leaves the eye and there are no receptors |
front 25 bipolar cells | back 25 the main interneurons, providing the main pathway between the photoreceptors of the eye to ganglion cells |
front 26 ganglion cells | back 26 retinal cells that are responsible for carrying the visual stimuli to the brain |
front 27 feature detectors | back 27 neurons located in the visual cortex that respond to specific features of stimulus |
front 28 parallel processing | back 28 the ability of the brain to process things such as color, motion, shape, etc. simultaneously |
front 29 young- helmholtz trichromatic theory | back 29 theory that your retina contains 3 types of receptor cells that can process three colors (green, blue, and red) |
front 30 opponent- process theory | back 30 theory that opposing retinal processes (red- green, yellow- blue, and white- black) enable color vision |
front 31 wavelenegth | back 31 distance of wave of light from peak to peak, which determines the color of the wave |
front 32 hue | back 32 dimension of color that is determined by the wavelength of the light |
front 33 amplitude | back 33 height of each peak in a wavelength, which determines the brightness of the light |
front 34 afterimage | back 34 continuation of visual sensation even after the stimulus is removed |
front 35 #1 | back 35 cornea |
front 36 #2 | back 36 pupil |
front 37 #3 | back 37 lens |
front 38 #4 | back 38 iris |
front 39 #5 | back 39 retina |
front 40 #6 | back 40 fovea |
front 41 #7 | back 41 optic nerve |
front 42 #8 | back 42 blind spot |
front 43 gestalt | back 43 organized whole; we tend to integrate pieces of information into meaningful wholes |
front 44 figure- ground | back 44 organization of visual field into objects that stand out from their surroundings |
front 45 grouping | back 45 perceptual tendency to organise stimuli into coherent groups |
front 46 depth pereception | back 46 ability to see objects in 3-D, which allows us to judge depth |
front 47 visual cliff | back 47 laboratory device for testing depth perception in babies and young animals |
front 48 binocular cues | back 48 depth cues that depend on the use of both eyes |
front 49 retinal disparity | back 49 binocular cue for perceiving depth (greater disparity means closer object) |
front 50 monocular cues | back 50 depth cues such as interposition and linear perspective, not dependent on use of both eyes |
front 51 phi phonomenon | back 51 illusion of movement created when two or more adjacent lights blink on and odd in quick succession |
front 52 perceptual constancy | back 52 perceiving objects as unchanging even as illumination and retinal images change |
front 53 color constancy | back 53 perceiving familiar objects as having consistent color even if changing illumination alters the wavelength reflected by object |
front 54 perceptual adaptation | back 54 ability to adjust to an artificially displaced or even inverted visual field |
front 55 audition | back 55 biological process by which our ears process sound waves |
front 56 amplitude | back 56 how loud sound is, measured on a scale of decibels (dB) |
front 57 frequency | back 57 number of wavelengths in a sound wave every second |
front 58 pitch | back 58 wavelength of sound wave (high or low) determined by the frequency of the wave |
front 59 outer ear | back 59 portion of ear that can be seen with inspection (pinna, ear canal, and ear drum) |
front 60 pinna | back 60 visible part of ear that directs sound waves into the ear canal |
front 61 ear canal | back 61 canal that guides sound waves down it to the eardrum |
front 62 ear drum | back 62 also known as the tympanic membrane, which vibrates when the sound waves hit it |
front 63 middle ear | back 63 chamber between the eardrum and the cochlea containing the hammer, anvil and stirrup |
front 64 ossicles | back 64 the hammer, anvil, and stirrup are known as ossicles, they are responsible for transferring the vibrations from the eardrum to the cochlea |
front 65 inner ear | back 65 innermost part of the ear (cochlea, semicircular canals, basilar membrane, and vestibular sacs) |
front 66 cochlea | back 66 a fluid- filled tube responsible for triggering nerve impulses from sound waves |
front 67 semicircular canals | back 67 fluid- filled tubes are responsible for helping you maintain your balance |
front 68 basilar membrane | back 68 membrane of cochlea that moves due to the fluid, causing action potential |
front 69 organ of corti | back 69 located in the basilar membrane and responsible for changing vibrations into neural impulses |
front 70 vestibular sacs | back 70 sensory cells responsible for maintaining balance |
front 71 sensorineural hearing loss | back 71 hearing loss caused by damage to the cochlea receptor cells or auditory nerves |
front 72 conduction hearing loss | back 72 hearing loss caused by damage to the mechanical system that conducts sound waves to the cochlea |
front 73 cochlear implant | back 73 device for converting sounds into electrical signals and stimulation the auditory nerve |
front 74 place theory | back 74 theory that links pitch we hear with the place that the cochlea is stimulated |
front 75 frequency theory | back 75 theory that rate of nerve impulses traveling up the auditory nerve matches the frequency of tone |
front 76 perceptual set | back 76 set of mental tendencies to perceive one thing and not another |
front 77 extra sensory perception (ESP) | back 77 controversial claim that perception can occur apart from sensory input |
front 78 parappsychology | back 78 study of paranormal phenomena (ex: ESP or psychokinesis) |
front 79 gate- control theory | back 79 theory that spinal cord contains "gate" that blocks or sends pain signals |
front 80 nociceptor | back 80 sensory receptor for painful stimuli, which act as predictors of harm |
front 81 kinesthesia | back 81 system for sensing the position and movement of individual body parts |
front 82 vestibular sense | back 82 sense of body movement and position including the sense of balance |
front 83 sensory interaction | back 83 principle that one sense may influence another (ex: smell and taste) |
front 84 embodied cognition | back 84 influence of bodily sensations, gestures, etc. on cognitive preferences/ judgements |