Sensation And Perception 3 Essay Example

eceptors transmit neural impulses to specific areas in the brain - visual, auditory, olfactory areas - resulting in perception.
An important concept in sensation and perception is the absolute threshold. This refers to the lowest level of stimulation that a person can consciously detect 50% of the time when present. The minimum amount of detectable stimulus energy required to reliably activate a sensory receptor is bottom-up processing.The environment stimulates the brain through light and sensory receptors, which is then processed by higher levels of the brain. This top-down processing uses cognitive functions and previous experiences to simplify the received information. Instead of perceiving multiple inputs, the brain assigns a single label, like "This is a car." The Gestalt principles provide psychological insights into how humans perceive this organized information.