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[Cortical reactivity during reaction time tests in sprinters].

J F Hamon1, B Seri

  • 1Laboratoire de physiologie animale et de psychophysiologie, faculté des Sciences et des Techniques, Abidjan, Côte-d'Ivoire.

Neurophysiologie Clinique = Clinical Neurophysiology
|May 1, 1989
PubMed
Summary

Athletes, particularly sprinters and physical education students, exhibit enhanced attentional mechanisms, showing greater event-related potential and CNV amplitudes. This suggests superior cognitive processing and resilience to distraction compared to non-athletes.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Sports Science

Background:

  • Athletes often demonstrate superior cognitive abilities.
  • Understanding the neural underpinnings of attention in athletes is crucial.

Purpose of the Study:

  • To investigate differences in event-related potentials (ERPs) and contingent negative variation (CNV) between athletes and non-athletes.
  • To examine the impact of auditory stimuli complexity on cognitive performance and neural activity.

Main Methods:

  • Thirty-two male subjects (controls, witnesses, PAE students, sprinters) were exposed to simple and paired auditory stimuli.
  • Participants responded to stimuli by pressing a button, with tasks varying in complexity.
  • Electrophysiological measures, including ERPs and CNV, were recorded.

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Main Results:

  • Sprinters and PAE students showed significantly higher ERP and CNV amplitudes compared to controls.
  • Response times (RT) varied across conditions, indicating differences in preparation and activation.
  • Divided attention led to decreased ERP/CNV amplitudes and increased RT, suggesting interference, though sprinters were less affected.

Conclusions:

  • Athletes possess greater adaptive reactivity in attentional mechanisms.
  • Auditory stimulus complexity and preparatory signals modulate cognitive processing and motor responses.
  • Sprinters exhibit enhanced attentional stability and are more resistant to performance decrements under divided attention.