Response inhibition during perceptual decision making in humans and macaques
| Autor: | Paul G. Middlebrooks, Jeffrey D. Schall |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male Linguistics and Language Eye Movements Experimental and Cognitive Psychology Stop signal Choice Behavior Macaque Article Language and Linguistics Task (project management) Developmental psychology Discrimination Psychological Species Specificity biology.animal Task Performance and Analysis Reaction Time Saccades Animals Humans Attention Response inhibition Probability biology Eye movement Sensory Systems Outcome (probability) Inhibition Psychological Perceptual decision Categorization Macaca Female Psychology Cognitive psychology |
| Zdroj: | Attention, Perception, & Psychophysics. 76:353-366 |
| ISSN: | 1943-393X 1943-3921 |
| DOI: | 10.3758/s13414-013-0599-6 |
| Popis: | Response inhibition in stop signal tasks has been explained as the outcome of a race between GO and STOP processes (e.g., Logan, 1981). Response choice in two-alternative perceptual categorization tasks has been explained as the outcome of an accumulation of evidence for the alternative responses. To begin unifying these two powerful investigation frameworks, we obtained data from humans and macaque monkeys performing a stop signal task with responses guided by perceptual categorization and variable degrees of difficulty, ranging from low to high accuracy. Comparable results across species reinforced the validity of this animal model. Response times and errors increased with categorization difficulty. The probability of failing to inhibit responses on stop signal trials increased with stop signal delay, and the response times for failed stop signal trials were shorter than those for trials with no stop signal. Thus, the Logan race model could be applied to estimate the duration of the stopping process. We found that the duration of the STOP process did not vary across a wide range of discrimination accuracies. This is consistent with the functional, and possibly mechanistic, independence of choice and inhibition mechanisms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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