Answer :
The existence of perseveration in patients with frontal-lobe damage provides evidence for the involvement of executive-control processes in task switching.
Frontal lobe is the anterior-most part of the brain. It is responsible for performing cognitive functions like: memory-building, impulse control, emotions, etc. It is also the the largest of all lobes of the brain. Besides, it is also the most common region for injuries.
Task switching is the ability to shift one's attention from one place to another. It requires the consciousness of the brain for the shift. The ability of task switching enables a person to take rapid decisions and it is an indicator of the activeness of the brain.
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