PSY 101 Chapter Notes - Chapter 6: Detection Theory, Absolute Threshold, Sound
23 Jan 2019
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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. Top-down processing: information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations. 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.
