14_Unit3.2_InfoProcessing copy

Unequal probability of possible choices dont woryy

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Unformatted text preview: y/practice and the law doesn t hold. doesnt hold to experts 2. Unequal probability of possible choices dont woryy bout this Processing Stages Detection Pattern recognition Stimulus (input) Stimulus identification Response selection Hick s Law S-R Compatibility Response programming Reaction time Movement (output) hicks law breaks down when we get to be an expert. 17 Stimulus-response compatibility associated with the response selection phase. S-R Compatibility concerns the extent to which the stimulus and its associated response are connected in a natural manner. SR-compatible SR-incompatible --known as the simon effect!!!! lights keys Stimulus-response compatibility The Simon Effect (Simon & Rudell, 1967) Stimulus-response compatibility Incompatibility appears to cause interference in selecting a response. •  Response selection phase of RT is susceptible to compatibility effects when the stimuli and response have a learned association. •  Interference occurs if response is not consistent with that learned association (Proctor & Van Zandt, 1994). 18 the leared association is now gettin in the way of our performance The Stroop Effect (Stroop, 1935) GREEN YELLOW ORANGE RED BLUE BLACK BLUE GREY PURPLE GREEN RED BLUE GREY RED PURPLE ORANGE GREEN PINK RED ORANGE GREEN WHITE WHITE BLUE YELLOW BROWN The Stroop Effect (Stroop, 1935) about how response gets into the way not aobut selcting the the response. We learn to process the color and meaning in parallel. This task would be easier for young children who have learned their colors but not learned to read! Keele (1972): there is response competition, causing delay. * There may also be delay in stimulus identification. Processing Stages Stimulus (input) Stimulus identification Response selection Response programming Reaction time Movement (output) 19 about a movemnt plan --- longer Response Programming The Henry-Rogers Experiment (1960) • Manipulated complexity of the movement, while keeping the stimulus the same. • Complex movements required not only longer MT, but longer RT, suggesting longer movement programming/planning. x Response Programming +13 ms RT (ms) 250 +36 ms 200 150 100 Finger Lift Single Doubleball-grasp ball strike Movement The more complex the movement, the longer period of time to initiate the movement (identification/selection the same across conditions). – Henry & Rogers, 1960 UNIT 3.2: Information Processing Objectives 1.  Demonstrate understanding of human information processing, and the techniques used to investigate these processes 2.  Discuss the strengths and weaknesses of the information processing approach in terms of facilitating our understanding of motor control and learning 20...
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This document was uploaded on 03/28/2014 for the course KNES 385 at Maryland.

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