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Related Experiment Video

Updated: Oct 11, 2025

Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention
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The difference in attentional focus during exercise affects attention resources.

Rei Odagiri1,2, Hideki Yoshida2, Akiyoshi Takami2

  • 1Department of Rehabilitation, Hirosaki Stroke and Rehabilitation Center: 1-2-1 Ougi-machi, Hirosaki-shi, Aomori 036-8104, Japan.

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|December 7, 2021
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Summary

External focus (EF) during exercise enhances motor control accuracy and potentially attention resources compared to internal focus (IF). This study measured brain activity using near-infrared spectroscopy to assess attentional focus effects.

Keywords:
Attention resourceExternal focusInternal focus

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Area of Science:

  • Neuroscience
  • Sport Science
  • Cognitive Psychology

Background:

  • Attentional focus, categorized as external (EF) or internal (IF), significantly influences motor performance and cognitive processes.
  • Understanding the neural correlates of attentional focus is crucial for optimizing skill acquisition and athletic performance.

Purpose of the Study:

  • To investigate the impact of external focus (EF) versus internal focus (IF) on attention resources during motor tasks.
  • To examine brain activity, specifically oxygenated hemoglobin (oxy-Hb) levels, in the dorsolateral prefrontal cortex (dlPFC) as an indicator of attention resources.
  • To determine the differential effects of EF and IF on task accuracy and neural activation.

Main Methods:

  • Twenty healthy adults were randomly assigned to either an EF or IF group.
  • Participants performed a tennis ball throwing task targeting accuracy while seated.
  • Near-infrared spectroscopy (NIRS) continuously measured oxy-Hb levels in the right dlPFC during the task.

Main Results:

  • While not statistically significant, the EF group demonstrated higher task accuracy compared to the IF group.
  • The EF group also exhibited greater oxy-Hb levels in the right dlPFC than the IF group.
  • These findings suggest a potential trend towards enhanced attention resources and motor control with an external focus.

Conclusions:

  • External focus may lead to superior motor control accuracy compared to internal focus.
  • Increased oxy-Hb levels in the dlPFC under EF suggest a potential augmentation of attention resources.
  • Further research is warranted to fully elucidate the neural mechanisms underlying attentional focus effects on cognitive and motor performance.