Does stress induction affect cognitive performance or avoidance of cognitive effort?

Area of Science:

• Psychology
• Neuroscience
• Behavioral Science

Background:

• Acute psychosocial stress is known to affect cognitive abilities.
• Recent research suggests stress may reduce the willingness to exert cognitive effort, rather than directly impairing performance.

Purpose of the Study:

• To replicate previous findings on stress and cognitive effort avoidance.
• To investigate the influence of acute stress on the avoidance of cognitive effort and actual cognitive performance.

Main Methods:

• Fifty healthy young adults were randomly assigned to a stress or control group.
• The Demand Selection Task (DST) paradigm was used to assess choices between high and low cognitive effort tasks.
• Stress was induced using the Trier Social Stress Test (TSST) and measured subjectively and psychophysiologically.

Main Results:

• Participants in the stress condition showed a significantly higher preference for less demanding behaviors.
• No significant changes in cognitive performance were observed in task-switching activities.
• Subjective and psychophysiological measures confirmed the effectiveness of the stress induction.

Conclusions:

• Acute psychosocial stress promotes avoidance of cognitive effort.
• Stress appears to influence decision-making by decreasing the motivation for effortful tasks, not by impairing cognitive capacity.
• Findings provide insights into stress-related behavioral and decision-making patterns in daily life.