PSYC 101 Chapter Notes - Chapter 4: Sound Localization, Semicircular Canals, Detection Theory
Document Summary
Chapter 4: sensation and perception at a glance. Sensation: the process of detecting external events by sense organs and turning those events into neural signals. Perception: involves attending to, organizing, and interpreting stimuli that we sense. Transduction: process in which physical or chemical stimulation is converted into a nerve impulse that is relayed to the brain. Pressure, stretching, or piercing of the skin surface. Chemicals on the tongue and in the mouth. Light-sensitive structures at the back of the eye. Hair cells that respond to pressure changes in the ear. Different types of nerve endings that respond to pressure, temperature chances and pain. Cells lining the taste buds of the tongue. Nerve endings that respond selectively to different compounds. Sensory receptors are most responsive upon initial exposure to stimulus. Sensory adaptation: the reduction of activity in sensory receptors with repeated exposure to stimulus. Benefit of allowing us to adjust to surroundings and shift our focus and attention to other events.
