PSY 1101 Study Guide - Psychophysics, Absolute Threshold, Neural Adaptation
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PSY 1101 Full Course Notes
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Document Summary
Sensation the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. Perception the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events. Bottom-up processing analysis that begins with the sensory receptors and works up to the brain"s integration of sensory information (in pictures, define the broad lines, angles and colours) Top-down processing information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations (what our senses would detect) Transduction conversion of one form of energy into another. In sensation, the transforming of stimulus energies, such as sights sounds, and smells, into neural impulses our brain can interpret. Psychophysics the study of relationships between the physical characteristics of stimuli, such as their intensity, and our psychological experience of them. Absolute threshold the minimum stimulation needed to detect a particular stimulus 50% of the time.
