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Respiration Shapes the Neural Dynamics of Successful Remembering in Humans
Esteban Bullón Tarrasó1,2, Fabian Schwimmbeck1,3,4, Marit Petzka5,6
1Department of Psychology, Ludwig-Maximilians-Universität München, Munich 80539, Germany.
Summary
Breathing influences memory retrieval by synchronizing brain activity during exhalation. This respiration-brain coupling enhances neural signatures of remembering and improves memory performance.
Area of Science:
- Neuroscience
- Cognitive Science
- Psychology
Background:
- Respiration's impact on cognitive functions, including memory, is increasingly recognized.
- The precise neural mechanisms linking respiration to memory retrieval are not fully understood.
Purpose of the Study:
- To investigate how respiration modulates neural dynamics during episodic memory retrieval.
- To explore the relationship between respiratory phase, neural signatures of memory, and behavioral performance.
Main Methods:
- Re-analysis of existing electroencephalography (EEG) and respiration data from an episodic memory task.
- Analysis of power fluctuations in the alpha/beta (⍺/β) band and neural reactivation patterns.
Main Results:
- Respiration significantly co-modulated retrieval-related ⍺/β power decreases and memory reactivation during exhalation.
- The strength of respiration-brain coupling correlated positively with memory retrieval performance.
Conclusions:
- Respiration acts as a pacemaker, coordinating neural activity essential for effective episodic memory retrieval.
- Brain-body interactions, specifically respiration-brain coupling, play a critical role in supporting cognitive functions like memory.
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