Contraints on information processing under alcohol in the context of response execution and response suppression. |
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Authors: | Fillmore, Mark T. Van Selst, Mark |
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Abstract: | This study tested the degree that alcohol restricts information processing on tasks requiring response execution and response suppression. A dual task required 12 participants to respond to 2 task stimuli (Tasks 1 and 2) presented in close succession. The task was performed before and after receiving 3 alcohol doses (placebo, 0.45 g/kg, and 0.65 g/kg) administered on separate days in a counterbalanced order. Alcohol increased task interference, as evidenced by increased time to respond to Task 2. Impairment was comparable regardless of whether Task 1 required a response to be executed or suppressed. The evidence supports a resource limitation account that argues that alcohol reduces capacity to process information required for execution and suppression of responses. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
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Keywords: | information processing restrictions alcohol dual task performance capacity reduction |
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