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Related Experiment Video

Updated: May 5, 2026

The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents
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Does neck flexion improve performance? Effects on reaction time depend on whether responses are expected.

Jason L Baer1, Rajal G Cohen1

  • 1Department of Psychology and Communication Studies, University of Idaho, Moscow, ID, USA.

SN Applied Sciences
|March 6, 2026
PubMed
Summary

Neck flexion speeds up simple reaction times but not in tasks requiring response inhibition. This study clarifies how neck posture affects performance in different cognitive tasks.

Keywords:
Cognitive psychologyEmbodied cognitionErgonomicsForward head postureInhibition (psychology)Reaction time

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Area of Science:

  • Neuroscience
  • Human Factors Engineering
  • Kinesiology

Background:

  • Neck flexion is paradoxically linked to both impaired inhibition and enhanced task performance.
  • Previous research utilized harnesses to study neck flexion's impact on reaction time.

Purpose of the Study:

  • To investigate the effect of a flexed neck posture on reaction time and go-nogo task performance.
  • To test the hypothesis that neck flexion benefits high-prepotency tasks more than low-prepotency tasks.

Main Methods:

  • A novel method using tape to fix neck posture in neutral or forward positions.
  • Participants completed simple reaction time and go-nogo tasks with fixed neck angles.

Main Results:

  • Simple reaction times were 10 ms faster in the forward neck position compared to neutral.
  • This reaction time facilitation was not observed in the go-nogo task.

Conclusions:

  • Inducing a flexed neck posture via tape facilitates reaction time in tasks requiring a response.
  • Neck flexion does not significantly affect performance in tasks requiring response withholding (go-nogo).