Electrophysiological signature of interoceptive attention: a spectral and source localization analysis.
Cognitive, affective & behavioral neuroscience April 1, 2025 Davide Crivelli, Michela Balconi 7 citations
Interoception—the ability to attend to internal bodily signals—is thought to support self-awareness, emotion regulation, and cognitive function, but empirical evidence for its neural basis is limited. In this study, 36 healthy adults performed the Heartbeat Counting Task while their brain activity was recorded with EEG. Source localization revealed that, compared to rest, the task increased alpha-frequency current density primarily in the right parahippocampal gyrus. Additionally, changes in beta-frequency activity in medial cortical structures, especially the cingulate gyrus, correlated with task performance. These findings suggest that EEG source localization can reveal neural correlates of interoceptive accuracy.