Dissociating the Neural Correlates of Executive Control
Sabrina Lemire-Rodger, R. Nathan Spreng, Shayna Rosenbaum, W. Dale Stevens, Gary R. Turner
York University, Cornell University
Executive functioning is dissociable into three processes: updating, inhibition and shifting. However, few studies have directly investigated the fractionation of executive control in the brain, and none have used ... [Show full abstract] matched tasks to investigate the dissociability of these processes in a within-subject neuroimaging protocol. Using a novel paradigm that manipulates executive control demands while keeping other task demands constant, we directly assessed the dissociability of the neural correlates of these three executive processes. Our results suggest that while there are overlapping patterns of activity, common to all processes, executive functions are dissociable both behaviourally and in the brain.