Respiration-Driven Brain Oscillations in Emotional Cognition

Area of Science:

• Neuroscience
• Cognitive Science
• Psychology

Background:

• Respiration rhythmically influences neural activity, impacting brain oscillations and neuronal firing patterns.
• This respiration-driven neural entrainment is observed across diverse cortical regions, including associative neocortical areas and the hippocampus.
• The influence extends to brain areas critical for emotional processing, such as those involved in fear, despair, and motivation.

Purpose of the Study:

• To review recent findings on respiration-entrained brain activity, with a specific focus on emotional cognition.
• To summarize studies investigating respiration's impact on brain areas involved in emotional behavior across different species.
• To discuss potential cellular and network mechanisms underlying respiration-driven neural entrainment in cortical circuits.

Main Methods:

• Literature review synthesizing recent research findings.
• Compilation of studies across various species and brain regions.
• Discussion of proposed mechanistic explanations for neural entrainment by respiration.

Main Results:

• Respiration profoundly impacts brain activity, entraining neural oscillations and neuronal firing.
• This entrainment is widespread, affecting higher cognitive functions and emotional processing areas.
• Evidence spans across multiple species, indicating a conserved biological mechanism.

Conclusions:

• Respiration acts as a fundamental timing signal influencing widespread brain functions.
• The link between respiration and cognitive processes, particularly emotional cognition, is significant.
• Further mechanistic studies are needed to fully elucidate the role of breathing in brain timing and function.