[PS-2.3] A Conflict/Control-Loop Hypothesis of Hemispheric Brain Reserve Capacity

Rendell, N. . & Davelaar, E.

Birkbeck College, University of London

A computational model is presented that provides a mechanistic account of the increase in bilateral activation observed in response to increased task demand. Central to the model is the process of monitoring task demand through detection of cognitive conflict. The model is tested using data from a visual field study in which matches were presented to participants either within or between hemi-fields. The data from our model demonstrated a pattern of relative activation similar to that of the relative reaction times in the behavioural study when the model included the conflict monitor. This model provides a basis for unpacking the mechanisms underlying cognitive and brain reserve capacity.