Ignacio Rebollo

Slow breathing impacts inter-organ dynamics modulating brain function and risk behavior

This study shows that slow breathing increases risky decisions by enhancing reward sensitivity and cardiac parasympathetic activity through neuro-cardiac pathways.

Uncovering the embodied dimension of the wandering mind

The paper investigates body-wandering during rest, finding it linked to negative affect, autonomic arousal, and reduced social thoughts, while correlating with lower ADHD and depression symptoms.

Spatiospectral signatures of stomach-brain synchrony

This study maps the spatiotemporal relationship between gastric rhythm and cortical oscillations, revealing consistent phase-amplitude coupling across brain regions and frequencies.

Dynamic stomach-brain electrical coupling in human sleep

This study shows that gastric electrical rhythms during sleep are synchronized with cortical oscillations and predict memory recall and sleep quality.

Stomach-brain coupling indexes a dimensional signature of mental health.

The paper investigates gastric-brain coupling as a marker of mental health using machine learning in 243 participants, finding increased fronto-parietal coupling correlates with worse mental health outcomes.

Vagus nerve stimulation increases stomach-brain coupling via a vagal afferent pathway

This study shows that vagus nerve stimulation increases stomach-brain coupling in specific brain regions and correlates with changes in hunger ratings.

The sensory and motor components of the cortical hierarchy are coupled to the rhythm of the stomach during rest

The paper identifies brain regions synchronized with the gastric rhythm during rest, showing sensory and motor areas are coupled to this rhythm while cognitive regions are not.

Stomach-brain synchrony binds neural representations of the body in a novel, delayed-connectivity resting-state network

The paper identifies a novel resting-state network in the brain that reflects delayed connectivity with the stomach's slow electrical rhythm, revealing new insights into how the brain represents bodily and external space.