Sarah N. Garfinkel

Can the heartbeat-evoked potential (HEP) be separated from Cardiac Artefact (CA) using beamforming?

This paper validates EEG beamforming for separating heartbeat-evoked potentials (HEP) from cardiac artefact (CA) using simulated and empirical data, showing reliable recovery and group differences in interoceptive regions.

Silent brains isolate the heartbeat-evoked potential

The paper dissociates the early heartbeat-evoked potential (HEP) from cardiac artefacts using an inversion-of-ground-truth approach, revealing a distinct frontocentral negative cortical response.

A hierarchical Bayesian model reveals increased precision weighting for afferent cardiac signals, and reduced anxiety, as a function of interoceptive training

This paper shows that interoceptive training improves heartbeat perception accuracy and reduces anxiety, with computational models explaining the underlying changes in signal precision and noise parameters.

Methodological approaches to derive the heartbeat-evoked potential: pastpractices and future recommendations

This paper reviews HEP processing methods in EEG and MEG studies, identifies inconsistencies, and recommends standardized approaches for reliable HEP extraction.

Relationship between systolic blood pressure and decision-making during emotional processing

The paper examines how systolic blood pressure changes during emotional processing affect decision-making, finding that increased SBP correlates with accuracy and slows response times during anger priming.

The Filter Detection Task for measurement of breathing-related interoception and metacognition

The paper introduces a task and analysis procedure to quantify breathing-related interoception dimensions using simulated and empirical data.

Serotonergic Effects on Interoception

This study investigates how acute serotonin changes affect interoceptive cognition, finding that SSRIs enhance confidence in interoceptive judgments without altering cardiac or subjective effects.

Feeling the beat: Temporal and spatial perception of heartbeat sensations

This study investigates temporal and spatial perception of heartbeat sensations, finding no relationship between them but a link between spatial precision and state anxiety.