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Attentional tracking reduces cortical alpha oscillations.

Qiao Songlin1, Xuemei Xia1, Jing Chen2

  • 1School of Psychology, Shanghai University of Sport, Changhai Road 399, Shanghai, 200438, China.

Scientific Reports
|September 30, 2025
PubMed
Summary

Cortical alpha oscillations are reduced when tracking moving targets in peripheral vision, supporting the premotor theory of attention. This links covert attention to overt pursuit mechanisms.

Keywords:
Alpha oscillationAttentionCovert trackingEEG

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Visual Attention

Background:

  • The premotor theory of attention posits shared neural mechanisms for overt and covert attention.
  • Cortical alpha oscillations are linked to overt smooth pursuit but their role in covert tracking is unclear.

Purpose of the Study:

  • To investigate the relationship between alpha oscillations and covert tracking of peripheral moving stimuli.
  • To test the premotor theory of attention by examining attention allocation during peripheral tracking.

Main Methods:

  • 16 participants performed covert visual tracking of horizontally moving stimuli at varying speeds and hemifields.
  • Simultaneous electroencephalography (EEG) and eye movement recordings were utilized.

Main Results:

  • Alpha power significantly decreased as the target moved further into the periphery, irrespective of speed.
  • Alpha power modulation was sensitive to covert attention allocation during tracking.

Conclusions:

  • Findings support a strong link between attentional processes in covert tracking and overt pursuit.
  • Results provide evidence for the premotor theory of attention, suggesting shared neural underpinnings.