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Psych chapter 3
| Term | Definition |
|---|---|
| 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
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