| Term | Definition |
|---|
| Sensation | the stimulation of sensory receptors and the transmission of sensory information to the central nervous system (the spinal cord and the brain). |
| Perception | the psychological process through which we interpret the sensory stimulation |
| Absolute Threshold | the weakest amount of a stimulus that can be sensed |
| Difference threshold | the minimum amount of difference that can be detected between two stimuli |
| signal detection theory | a method of distinguishing sensory stimuli that takes into account not only their strengths but also such elements as the setting, your physical state, your mood, and your attitudes |
| sensory adaptation | the process by which we become more sensitive to weak stimuli and less sensitive to unchanging stimuli |
| Pupils | sensitive to light and emotions |
| Lens | adjusts to the distance of objects by changing its thickness |
| Retina | sensitive surface in the eye that acts like the film in a camera, consists of neurons called photoreceptors |
| Blind Spot | when light hits the point where the optic nerve leaves the eye, eye registers nothing because that area lacks photorececptors |
| rods and cones | two types of photoreceptors |
| rods | sensitive only to the brightness of light |
| cones | provide color vision |
| dark adaptation | when you enter a setting with lower lighting, and your eyes adapt |
| adaptation to bright light | happens much more quickly than adaptation to the dark |
| visual acuity | determined by the ability to see visual details (in normal light) |
| humans | do humans see more color, or do dogs and cats? |
| Blue, Green, Red | Color T.V pixles are... |
| complementary color | the afterimage of a color is its |
| cones | people who are color blind (or partially color blind) lack this, or have this but it malfunctions |
Combine with other sets
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