PSYB57H3 Lecture Notes - Lecture 8: Saccade, Zoom Lens, Receptive Field

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3 Feb 2017
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Sometimes it fails (when we overlook crucial parts such as in magic tricks) Area of v1 changes depending on which part of the visual field is stimulated. Early vs late selection: bottlenecks to do with perception. Spotlight model: explain how spatial attention works most of the time (but not always right) Zoom lens model: explain how spatial attention works most of the time (but not always right) Biased-competition model: captures the enhancement of activity in an area and the mechanisms behind it. Premotor theory of attention: where we move our eyes (eye motor control in attention) Attention: red arrows (earlier levels) because so much visual input coming in, it"s too complex to register everything. Early selection or early with adaptable filter system. Even semantic processes (through attention) can remain unattended/unconscious. Perceptual load: when you focus on a task with a lot of attention, you are less aware of environment.

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