Psych pwpt 10 - Controlled Attention and Automaticity...

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Controlled Attention and Automaticity
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Divided attention Two sources of information and want to respond to both at the same time e.g., video game and conversation Dual task experiments Present two tasks: Task1 and Task2 Compare performance to when done alone (Either Task 1 or Task 2) Cost = performance decrement in dual vs. alone
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Divided attention – cell phones and driving Dual task experiment Driving and talking on phone Compare performance to when driving alone Cost-- performance decrement when doing both Results 20 year old drives like 70! Reaction to brake lights is impaired Twice as many (simulated) rear-end collisions Due to holding phone? Nope -- no difference with hand-free!
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Capacity theory Tasks require mental effort or resources Harder tasks require more resources Resources are limited Limited capacity If tasks require more resources than available, see performance costs Kahneman, 1973
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Ability to perform some task with little or no attention (e.g.,
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This note was uploaded on 02/15/2011 for the course PSYC 250 taught by Professor Timothymiura during the Spring '11 term at Loyola Chicago.

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Psych pwpt 10 - Controlled Attention and Automaticity...

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