PSY270H1 Chapter Notes - Chapter 4: Feature Integration Theory, Change Blindness, Saccade
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PSY270H1 Full Course Notes
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A number of models have been proposed to explain the process of selective attention. Broadbent"s lter model of attention: proposes that the attended message is separated from the incoming signal early in the analysis of the signal. sensory memory: holds info for a fraction of a second. Lter: identi es message, etc detector: processes info to determine higher lvl characteristic of msg i. e. ; meaning short-term memory: holds info for 10-15 seconds before ltm bottleneck model: lter restricts information ow much like a bottle neck. Late selection models propose that selection doesn"t occur until messages are processed enough to determine their meaning. Lavie proposes that our ability to ignore distracting stimuli can be explained by considering (1) processing capacity and (2) perceptual load. The stroop e ect demonstrates how a powerful task-irrelevant stimulus, such as meaningful words that result in a response that competes with the observer"s task, can capture attention. i. e. ; reading contrasting words/colors.
