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Related Experiment Video

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Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

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Prefrontal cortex hemodynamic response to acute high intensity intermittent exercise during executive function

Prachi Khandekar¹, Shweta Shenoy¹, Abhinav Sathe¹

¹Guru Nanak Dev University.

The Journal of General Psychology

|March 15, 2022

Summary

This summary is machine-generated.

Acute high-intensity intermittent exercise (HIIE) boosts executive function (EF) and prefrontal cortex (PFC) activation in young adults. While PFC response to HIIE differs between sexes, cognitive performance remains similar.

Keywords:

High intensity intermittent exercise color word Stroop test functional near infrared spectroscopy trail making test

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Area of Science:

Neuroscience
Exercise Physiology
Cognitive Science

Background:

Executive functions (EF) are crucial cognitive processes.
High-intensity intermittent exercise (HIIE) is known to impact cognitive function.
Prefrontal cortex (PFC) activity is central to EF and is modulated by exercise.

Purpose of the Study:

To investigate the effects of acute HIIE on PFC hemodynamic response during EF tasks.
To examine sex differences in cognitive performance and PFC activation following HIIE.
To understand the relationship between exercise intensity, brain activity, and cognitive enhancement.

Main Methods:

49 young adults (32 women, 17 men) participated in a randomized controlled trial.
Participants underwent HIIE or a control condition.
Functional near-infrared spectroscopy (fNIRS) measured PFC hemodynamics during executive function tests (Color Word Stroop Test and Trail Making Test) pre- and post-intervention.

Main Results:

HIIE intervention led to significant changes in PFC hemodynamics (increased oxygenated hemoglobin, decreased deoxygenated hemoglobin) during EF tasks.
Participants in the HIIE group showed improved scores on the CWST and TMT.
While PFC activation patterns in response to HIIE differed between men and women, cognitive task performance was comparable across sexes.

Conclusions:

An acute session of HIIE enhances executive function, correlating with increased PFC activation.
Sex-specific differences in PFC activation exist during HIIE-induced EF processing.
This study contributes to the understanding of exercise's impact on cognition and brain function.