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Psych chapter 3

Sensation the activation of sensory recpetors in the various sense organs. (Eyes, ears, tongue, nose, and skin/ internal body tissues)
sensory receptors specialized forms of neurons that are stimulated by various kinds of energy, rather than a typical neuron stimulated by neurotransmitters converts energy into a signal for our brain to see or hear
habituation tendency of the brain to stop paying attention to unchanging information hearing is the only sense that habituates
sensory adaptation tendency of sensory receptors to become less responsive to unchanging information all other senses besides hearing ex. nose blind
cornea transparent covering of the eye bends light waves so the image can be focused on the retina
Iris the colored portion of the eye its muscles control the size of the pupil
pupil the small opening in the eye that changes size depending on the amount of light in the environment
lens curved, transparent structure that changes shape to bring objects into focus
Retina the light-sensitive lining of the eye that contains photoreceptor cells
optic nerve sends visual information to the brain made up of bundles of axons from rods and cones travels to the occipital lobe to transmit vision information- what you are seeing
Rods and cones are the sensory receptors for vision
Rods specialized photoreceptors that work well in low light conditions perception of movement
Cones specialized types of photoreceptors that work best in bright light conditions perception of color
what is the overall cause of colorblindness result of defective cones
outer ear/ pinna the visible part of the ear funnels vibrations of air molecules contains the auditory canal (ear canal) contains the tympanic membrane (eardrum)
auditory canal (ear cannal) short tube at the entrance of the pinna
tympanic membrane (eardrum) thin section of tightly stretched skin that covers the opening to the middle ear.
The middle ear contains the auditory ossicles oval window
auditory ossicles the three tiny bones in the middle ear 1. malleus (hammer) 2. incus (anvil) 3. stapes (stirrup)
oval window a tissue membrane that covers the entrance to the inner ear
inner ear contains the cochlea hair cells auditory nerve
cochlea fluid filled, snail shaped structure that contains hair cells
hair cells auditory receptor cells of the ear embedded in the membrane in the cochlea sensory receptors for hearing very fragile, hair like cells
auditory nerve made up of axons from hair cells
perception the process by which the brain organizes and interprets sensory information
depth perception the ability to see the world in three dementions
the visual cliff experiment concluded that depth perception is probably born into us, the fear of depth although, is learned
the _____ _____ are the sensory receptors for hearing hair cells
Created by: kyliearnold