CAS PS 101 Lecture 4: Perception

• School: Boston University
• Department: Psychological & Brain Sciences
• Course: CAS PS 101
• Professor: Robert Reinhart

Document Summary

Sensation - our sense organs" detection and response to external stimulus energy and the transmission of those responses to the brain. Perception - the brain"s processing of signals leading to internal representations of the stimuli that form a conscious experience of the our environment. Stimulus - the environment one is trying to understand and interact with. Sensation - the mechanical/chemical interactions with the environment. Transduction - a process in which sensory receptors produce neural impulses through physical or chemical stimulation. Perception - the brain"s processing of detected signals, resulting in internal representations of the stimuli that form a conscious experience of the our environment. Psychophysics: a subfield of psychology that measures the relationship between stimuli and perception, examining our psychological experiences of physical stimuli. The two types of thresholds : absolute threshold : the minimum intensity of stimulation that must occur before you experience a sensation. (the limits of detectability. )