Sequential dependencies in the Eriksen flanker task: a direct comparison of two competing accounts
Davelaar, Eddy J. and Stevens, J. (2009) Sequential dependencies in the Eriksen flanker task: a direct comparison of two competing accounts. Psychonomic Bulletin and Review 16 (1), pp. 121-126. ISSN 1069-9384.
In the conflict/control loop theory proposed by Botvinick, Braver, Barch, Carter, and Cohen (2001), conflict monitored in a trial leads to an increase in cognitive control on the subsequent trial. The critical data pattern supporting this assertion is the so-called Gratton effect—the decrease in flanker interference following incongruent trials—which was initially observed in the Eriksen flanker task. Recently, however, the validity of the idea that this pattern supports a general conflict/control mechanism has been questioned on the grounds that the Gratton effect is only observed with stimulus repetition. We present an experiment testing whether the Gratton effect reflects a stimulus-independent increase in cognitive control or stimulus-specific repetition priming. Although our results support the latter hypothesis, the priming effect is modulated by the congruency of the previous trial. We discuss a new mechanism through which monitored conflict is used to exert executive control by modulating stimulus-response associations.
|School:||Birkbeck Schools and Departments > School of Science > Psychological Sciences|
|Date Deposited:||05 Jan 2011 15:32|
|Last Modified:||17 Apr 2013 12:18|
Additional statistics are available via IRStats2.