| A | B |
|---|
| absolute thresholds | min. energy amount detected by sensory organs |
| endorphins | substances produced by the body-can reduce or eliminate pain |
| gate control theory | built-in spinal cord gating mechanism that can block neural impulses outside the brain |
| perception | process in which the brain organizes sensory information to make it meaningful |
| pheromones | odor molecules given off by animals that communicates a sexual message |
| receptors | nerve cells witin the sensory organs that convert stimuli, such as light or sound waves, into neural impulses. |
| retina | light sensitive lining at the back of the eye that contains rods and cones |
| sensory adaptation | reduction in sensory responses to an unchanging form of stimulation |
| sensory coding | particular pattern of a neural message that a sensory organ sends to the brain. |
| somatic receptors | receptors in the skin that respond to touch, pressure, temperature and pain |
