2.10.11 - (2.10.11) Object-Based Visual Attention The...

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(2.10.11) Object-Based Visual Attention The enhancing effect of attention spreads throughout the object Egly et al. (194) o Participants saw 2 side by side rectangles, followed by a target clue o Reaction time fastest when target appeared where indicated o Reaction time was faster when the target appeared in the same rectangle Visual Attention Location-based: moving attention from one place to another Object-based: attention being directed to an object Attention and Perception Attention to perceive objects as whole Feature Integration Theory (FIT) Treisman and Schmidt (1982) o Participants report combination of features from different stimuli o Illusory conjunctions occur because features are “free floating” o If attention is focused on one part of the display you can better attend and integrate the features on the screen R.M.: Patient with Balint’s syndrome o Inability to focus attention on individual objects o High number of illusory conjunctions reported
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2.10.11 - (2.10.11) Object-Based Visual Attention The...

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