Groove rhythm stimulates prefrontal cortex function in groove enjoyers

Area of Science:

• Neuroscience
• Cognitive Psychology
• Music Psychology

Background:

• Groove rhythm (GR) listening can evoke pleasure, arousal, and potentially enhance cognitive performance.
• Exercise and music are known to stimulate the prefrontal cortex, suggesting a neural basis for cognitive enhancement.

Purpose of the Study:

• To investigate if GR enhances executive function (EF) by modulating activity in the left dorsolateral prefrontal cortex (l-DLPFC).
• To explore the role of individual psychological responses to GR in mediating its effects on EF and l-DLPFC activity.

Main Methods:

• Fifty-one participants completed the Stroop task before and after listening to either GR or a white-noise metronome for 3 minutes.
• Functional near-infrared spectroscopy (fNIRS) monitored l-DLPFC activity during the task.
• Participants reported their subjective psychological responses to the auditory stimuli.

Main Results:

• GR listening significantly enhanced EF and l-DLPFC activity compared to the control condition.
• These enhancements were most pronounced in participants reporting stronger feelings of groove and clarity.
• Subjective psychological responses positively predicted the magnitude of GR's impact on l-DLPFC activity and EF.

Conclusions:

• GR can enhance executive function through its effects on the l-DLPFC.
• Individual differences in psychological responses to GR are crucial mediators of its cognitive benefits.
• Targeting these psychological responses may optimize the use of GR for cognitive enhancement.