Abstract

Task switching is a behavioral phenomenon that serves as a tool for assessment of individual cognitive abilities that becomes especially essential in our multitasking milieu. Factors of task-switching include cognitive load and cognitive effort, mostly derived from task difficulty, as well as age and practice. The analysis of brain activity on the level of single neurons shows that the activations that contribute to task performance and switching differ with respect to the protocol of learning the alternated tasks. We argue that task switching is affected by the history of learning and in turn it changes the structure of individual experience. On this basis we outline perspectives of task switching studies in the fundamental field of long-term memory and applied field of education and therapy.

Highlights

  • The necessity to change behavior (e.g., to interrupt the current one and switch to another) is usually perceived as a burden, because getting back to where you formerly stopped requires effort that would not be made without the interruption

  • The necessity to change behavior is usually perceived as a burden, because getting back to where you formerly stopped requires effort that would not be made without the interruption

  • No significant changes have been revealed in the posterior cingulate cortex neurons, there were considerable changes similar to the previous results from our lab (Alexandrov et al, 1999). These results show that the specialized neurons increase their degree of involvement after switching, reorganizing the subserving of task performance

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Summary

Introduction

The necessity to change behavior (e.g., to interrupt the current one and switch to another) is usually perceived as a burden, because getting back to where you formerly stopped requires effort that would not be made without the interruption. The key point of neuronal activity analysis is the comparison of samples of neurons (their specializations, firing indices etc.) with respect to the history of learning, given that these samples were recorded during final behavior that was similar for the groups of animals.

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