CCNCS Seminar Details
The dynamics of control and interaction with concurrent load and emotion
|Speaker:||Professor Marius Usher|
|Date/Time:||Wednesday 22 January 2014, 4.15pm|
|Location:||Darwin Lecture Theatre 3|
The deployment of executive control is subject to considerable variability. I will review one type of such variability, in the context of the Stroop task, which relates to the magnitude of the Stroop-facilitation (RT-neutral -RT congruent). I will then present a novel computational theory that distinguishes between two types of control -- proactive vs. reactive -- and will show that it accounts for this variability in mean-RT, as well as to properties of the RT-distributions. The model predicts that shifts from pro- to re-active control will take place under concurrent task load, or under the exposure to task-irrelevant emotional stimuli.