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Top-down control in the Simon task

Lauffs, M.M. (2009) Top-down control in the Simon task.

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Abstract:The current study used precues in a Simon task to equip subjects with information about whether the upcoming trial would be of a corresponding or noncorresponding stimulus-response (S-R) location mapping. It was hypothesized that subjects could use the information to gradually alter their stimulus processing to be faster and more accurate if the cues were valid, but that these alterations would lead to more lags and errors when cues were invalid. The results supported the hypothesis. However, control over stimulus processing in this sense was highly limited when the preceding trial had been of a noncorresponding S-R mapping. Furthermore, the results were in line with proposals of a gating mechanism in which gradual adjustments in selection of stimulus features for processing is assumed to underlie control
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology BSc (56604)
Link to this item:http://purl.utwente.nl/essays/59080
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