o While we feel that our perceptions of a visual scene are, like photos, fully detailed copies of whats out there, our perceptions are in fact rather schematic with fully detailed perception occurring only for objects that are the focus of limited attention • Attention facilitates perception o Cueing task – ppl are quicker to detect targets that appear on valid cues compared to invalid cues o Covert attention increases sensitivity to target in attended location o The facilitation associated with attention can apply to either locations or to objects o Does attention really increase perceptual sensitivity? Perhaps it simply increase the speed of motor commands (key presses) o Subjects could accurately id grating at lower contrast for attended stimulus than for unattended stimulus which implies that attention does enhance perceptual activity • Attention and feature binding o Different areas of the brain are specialed for perceiving different object features (color, location, form) o
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