lec03-1 - Introduction to Attention Psychology 355:...

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Introduction to Attention Psychology 355: Cognitive Psychology Winter Quarter 2009 1/20/2009
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P 355, Miyamoto, Winter '09 2 Classroom Demonstration http://viscog.beckman.uiuc.edu/grafs/demos/15.html When I click the button on the computer, you will see a short video that shows two groups of people passing basketballs back and forth. One group wears white tee shirts; the other group wears black tee shirts. Each group has a basketball and the group members pass the ball back and forth to other group members. YOUR TASK: Count . .. i. .... the number of times someone in a WHITE shirt passes the ball from one person in the group to another PLUS . .. ii. .... the number of times someone in a WHITE shirt bounces the ball on the ground, either to themselves or to a team mate. Ignore what the people in black shirts do. Next: Questions & Answers re Basketball Passes & Bounces
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P 355, Miyamoto, Winter '09 3 Questions: • How many times did the people in the white tee shirts pass the ball? 14 Passes + 10 Bounces = 24 Passes & Bounces • Did you notice anything else that was strange? Raise your hand if you noticed anything strange about the video. • Repeat video Next: Stroop Task Example
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P 355, Miyamoto, Winter '09 4 Stroop Task • Name the color that the word is printed in. Ignore the meaning of the word. Compatible Condition BLUE GREEN RED BLACK GREEN RED etc Incompatible Condition BLUE GREEN RED BLACK GREEN RED etc • Obviously, the incompatible condition is harder (slower response) than the compatible or irrelevant conditions. • Why can’t you ignore (avoid attending to) the word meaning in the incompatible condition? Irrelevant Condition BOOK GAME ROOF BAND GHOST RAT etc Next: Lecture Outline
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P 355, Miyamoto, Winter '09 5 Outline • Demonstration of Inattentional Blindness – Gorilla Example (precedes this slide) • Change Blindness Example • Main Question of this Lecture: Where Does Attentional Selection Occur? Does It Occur Close to the Sensory Periphery, or Later After the Extraction of Meaning? • “Dear Aunt Jane” Experiment – an Objection to Broadbent’s Filter Model • Treisman’s Attenuator Model • MacKay’s Late Selection Model
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P 355, Miyamoto, Winter '09 6 Limited Capacity Information Processor • Humans cannot encode and represent ALL of the perceptual information available to them. • Attention is the process by which we select part of the information for
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This note was uploaded on 10/05/2009 for the course PSYCH 355 taught by Professor Miyamoto during the Winter '08 term at University of Washington.

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lec03-1 - Introduction to Attention Psychology 355:...

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