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Input monitoring and response selection as components of executive control in pro-saccades and anti-saccades

By André Vandierendonck, Maud Deschuyteneer, Ann Depoorter and Denis Drieghe

Abstract

Several studies have shown that anti-saccades, more than pro-saccades, are executed under executive control. It is argued that executive control subsumes a variety of controlled processes. The present study tested whether some of these underlying processes are involved in the execution of anti-saccades. An experiment is reported in which two such processes were parametrically varied, namely input monitoring and response selection. This resulted in four selective interference conditions obtained by factorially combining the degree of input monitoring and the presence of response selection in the interference task. The four tasks were combined with a primary task which required the participants to perform either pro-saccades or anti-saccades. By comparison of performance in these dual-task conditions and performance in single-task conditions, it was shown that anti-saccades, but not pro-saccades, were delayed when the secondary task required input monitoring or response selection. The results are discussed with respect to theoretical attempts to deconstruct the concept of executive control

Topics: BF
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:144737
Provided by: e-Prints Soton

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