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Related Experiment Video

Updated: Dec 15, 2025

Intra-Operative Behavioral Tasks in Awake Humans Undergoing Deep Brain Stimulation Surgery
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Multitasking and Time Pressure in the Operating Room: Impact on Surgeons' Brain Function.

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Summary

Multitasking and time pressure impair surgeons' cognitive function, leading to decreased prefrontal cortex (PFC) activation and reduced surgical skill. This highlights the impact of high workload on executive functions crucial for complex procedures.

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Area of Science:

  • Neurosurgery
  • Cognitive Neuroscience
  • Surgical Education

Background:

  • Surgical performance declines under time pressure, linked to prefrontal cortex (PFC) deactivation.
  • The impact of multitasking on surgeons' brain function during complex tasks remains under-explored.

Purpose of the Study:

  • To investigate the effects of multitasking and time pressure on surgeons' brain activity during laparoscopic suturing.
  • To correlate neuroimaging findings with objective measures of surgical skill and subjective workload.

Main Methods:

  • Twenty-nine surgical residents performed laparoscopic suturing under four conditions: self-paced, time-pressured, with decision-making, and combined time-pressured with decision-making.
  • Optical neuroimaging measured prefrontal cortex (PFC) activation, while task performance, errors, and workload were objectively and subjectively assessed.

Main Results:

  • Increased workload and impaired technical performance were observed under time pressure and multitasking conditions.
  • Time pressure induced ventrolateral PFC (VLPFC) deactivation, while multitasking with decision-making led to deactivation in both VLPFC and dorsolateral PFC (DLPFC).
  • Decision-making was identified as a predictor of PFC deactivation.

Conclusions:

  • Performance deficits in high-workload surgical scenarios correlate with PFC deactivation, affecting executive functions like attention and working memory.
  • Simultaneous motor and cognitive demands, particularly under time constraints, significantly impact surgeons' cognitive processing and performance.