Volta

Neurophysiological dynamics of visceral signals in emotion, self and bodily consciousness

Bodily organs such as the heart and the lungs play a crucial role in maintaining physiological homeostasis in a continuous closed-loop interaction with the brain. Beyond their vital role, recent developments have emphasized the remarkable contribution of bodily signals to high-level brain functions. A direct route by which bodily signals influence brain functioning is via modulation of electrophysiological dynamics, which in turn influences the integration and processing of emotional and self-related information regulating our conscious experience. Drawing on electrophysiological investigations, we provide a comprehensive picture of the electrophysiology of interoception and its contribution to emotion, self and bodily consciousness, with a focus on cardiac, respiratory and gastric interoception. We provide evidence that altered neurophysiological responses in interoception might underlie deficits …

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