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Related Experiment Videos

Decision making: neural correlates of response time.

Jeffrey D Schall1

  • 1Wilson Hall, Center for Integrative & Cognitive Neuroscience, 111 21st Avenue South, Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA. jeffrey.d.schall@vanderbilt.edu

Current Biology : CB
|December 13, 2002
PubMed
Summary

The brain controls response times by limiting neural processing speed. Decision-making speed in neural processes dictates when overt responses occur, showing the brain regulates cognitive speed.

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Area of Science:

  • Cognitive neuroscience
  • Decision-making research

Background:

  • Understanding the neural basis of decision-making is crucial.
  • Previous research has focused on the timing of neural processes leading to a choice.

Purpose of the Study:

  • To investigate the relationship between neural processing completion and overt response initiation.
  • To explore the concept of the brain 'throttling' cognitive processes.

Main Methods:

  • Measuring the duration of neural processes involved in stimulus evaluation.
  • Correlating neural processing time with the onset of observable behavioral responses.

Main Results:

  • Overt responses are initiated precisely upon the completion of underlying neural decision-making processes.

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  • The timing of neural completion directly dictates the timing of the response.

    • Conclusions:

    • Neural processing speed acts as a bottleneck for response generation.
    • The brain actively regulates the pace of cognitive operations, influencing observable behavior.