Task-switching

Out with the old and in with the new: the contribution of prefrontal and cerebellar areas to backward inhibition

The inhibitory mechanism named backward inhibition (BI) counteracts interference of previous tasks supporting task switching. For instance, if task set A is inhibited when switching to task B, then it should take longer to immediately return to task set A (as occurring in an ABA sequence), as compared to a task set that has not been just inhibited (as occurring in a CBA sequence), because extra time will be needed to overcome the inhibition of task set A. The evidenced prefrontal and cerebellar role in inhibitory control suggests their involvement even in BI.

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