Acute Physical Exercise Can Influence the Accuracy of Metacognitive Judgments

Area of Science:

• Cognitive Neuroscience
• Exercise Physiology

Background:

• Acute exercise is known to benefit memory.
• However, its impact on metacognition, or knowledge of one's own memory performance, is less understood.

Purpose of the Study:

• To investigate how a single bout of exercise influences metacognitive judgments in paired-associate learning.
• To examine the effects of exercise timing (before vs. after encoding) on memory recall, recognition, and metacognitive accuracy.

Main Methods:

• Participants engaged in 30-minute moderate-intensity exercise sessions before or after studying word pairs.
• Memory performance was assessed using cued-recall and recognition tests.
• Metacognitive judgments included judgments of learning (JOLs) and feeling-of-knowing (FOK) assessments.

Main Results:

• Exercise before encoding enhanced cued-recall in one experiment but not another; recognition memory remained unaffected.
• Exercise after encoding did not significantly impact memory performance.
• When memory was not enhanced, exercise increased JOLs and FOK judgments relative to accuracy, and impaired JOL accuracy.

Conclusions:

• Acute exercise may signal an anticipated improvement in memory, potentially inflating metacognitive judgments.
• The timing of exercise relative to learning is crucial for its effects on memory and metacognition.
• Findings suggest exercise might influence study strategies and self-assessment of learning.