vision,hearing,sense etc
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Sensory Receptors | cells unique to each sense organ (responds to form of sensory stimulation
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| Transduction | physcial energy is converted to coded neural signal
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| Absolute threshold | smallest amount of strength of a stimulus that can be detected half the time
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| difference threshold | smallest difference between 2 stimuli that can be detected
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| Sensory adaption | nose blind, decline in sensitivity
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| wave length | distance from one wave peak to another
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| Cornea | membrane covering visible part of the eye (gathers direct incoming of light)
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| pupil | opening in middle of the eye that changes size to let diff amount of light in
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| iris | colored part of the eye that controls the size of the pupil
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| lens | transparent structure behin pupil that focuses or bends light that enters the eye
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| accommodation | changes shape to focus incoming light so that it calls on retina
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| rods | sensory receptors for light (peripheral vision?night vision)
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| cones | detect color and are responsible for color/day visual activity
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| fovea | small area in center of retina (cones/visual info)
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| optic disk | no rods or cones (retina) optic nerve exits in back of eye
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| why does a blind spot happen ? | optic nerve leaves the eye(small gap in vision)
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| ganglion cells | specialized neurons tat connect to bipolar (forms optic nerve)
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| bipolar cells | conncet rods and cones with ganglion cells
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| optic nerve | thick nerve that exists from back of eye (carries visual info to v cortex in brain)
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| optic chiasm | optic nerve fibers from each eye meet and cross over to the opposite side of brain
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| trichromatic theory of color vision | sensation of color results because cones are sensitive to red,green,blue (long-short wave lengths)
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| after image | when stimulation is no longer present
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| opponent process theory of color | opposing pairs green red, yellow blue. when one membrane is stimulated the other is inhibited
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| basilar membrane | contains hair cells
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| hair cells | sensory receptors for sound (embedded in basilar membrane of cochela
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| cochlea | fluid filled inner ear structure that contains basilar membrane and hair cells
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| frequency theory | basilar membrane vibrates at same frequency as sound wave
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| place theory | frequencies cause larger vibrations @ diff locations along bm
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| olfaction | sense of smell
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| gustation | sense of taste
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| pheromones | communicate info to other animal of same species
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| olfactory bulb | enlarged ending of of. cortex (smell is registered)
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| taste buds | receptors on mouth and throat
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| nociceptors | sensory receptors in skin, muscles,organs
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| substance P | neuro transmitter involved in pain messages to brain
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| gate control theory of pain | pain s psychology factors that cause spinal gates to open and relay patterns to the brain (perceives pain)
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| kinesthetic sense | sense of location and position of body parts in relation to another
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| proprioceptors | in muscles and joints that provide info about body position and movement
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| vestibular sense | technical name for the sense of balance or equilibrium
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| parapsychology | investigation of claims of paranormal phenomena abilities
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| figure ground relationship | principle stating that perception is divided into figure which stands out form distinct background, the ground
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| Perceptual constancy | Tendency to perceive objects especially familiar objects,as constant and unchanging despite in sensory input
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| Size constancy | Perception of an object maintains the same size despite changing images on the retina
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| Shape constancy | Object perception remaining the same shape regardless the image produced in retina
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| Color constancy | Perception of a familiar object as being the same color under different light conditions
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| Perceptual illusion | Misperception of true characteristics of an object or an image
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| Müller-Lyer illusion | Visual illusion involving misperception of the identical length of two lines
One with arrows pointed inward and the other outward
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| Moon illusion | Visual illusion that the moon is larger when it's on the horizon than when it is directly overhead
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| Biofeedback | Technique that involves autidory/visual feedback to learn to exert voluntary controll over involuntary things (heart rate etc)
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| Acupuncture | Chinese medical procedure where needles are put on pain areas to alliveate it
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