Abstract

Chapter 22 discusses how executive control is exerted by different regions in the frontal lobes. There is a particular focus on inhibitory motor control. It has been suggested that the inferior frontal gyrus (IFG), particularly the right IFG (rIFG), and the pre-supplementary motor area (pre-SMA) play a major role in inhibitory control and the flexible adjustment of movement plans. Although inhibition is often thought to constitute the means by which executive control is exerted, it is not always clear how inhibitory control on a cognitive level can be related to physiological inhibition. In order to address these questions, this chapter reviews studies that looked at measures of brain activity during tasks that required inhibitory control. Moreover, it also considers studies that have sought to investigate the consequences of changes in brain activity, as a result of either lesions or transcranial magnetic stimulation (TMS), for inhibitory control.

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