Reference : Short-term food deprivation increases amplitudes of heartbeat-evoked potentials |
Scientific journals : Article | |||
Social & behavioral sciences, psychology : Neurosciences & behavior | |||
http://hdl.handle.net/10993/18576 | |||
Short-term food deprivation increases amplitudes of heartbeat-evoked potentials | |
English | |
Schulz, André ![]() | |
Ferreira de Sá, D. S. [] | |
Dierolf, Angelika ![]() | |
Lutz, Annika ![]() | |
Van Dyck, Zoé ![]() | |
Vögele, Claus ![]() | |
Schächinger, H. [] | |
2015 | |
Psychophysiology | |
Cambridge University Press | |
52 | |
5 | |
695-703 | |
Yes (verified by ORBilu) | |
International | |
0048-5772 | |
New York | |
NY | |
[en] Nutritional state, i.e. fasting or non-fasting, may affect the processing of interoceptive
signals, but mechanisms underlying this effect remain unclear. We investigated 16 healthy women on two separate days: when satiated (standardized food intake) and after an 18 h food deprivation period. On both days, heartbeat-evoked potentials (HEPs) and cardiac and ANS activation indices (heart rate, nLF HRV) were assessed. The HEP is an EEG pattern that is considered an index of cortical representation of afferent cardiovascular signals. Average HEP activity (R-wave +455-595 ms) was enhanced during food deprivation compared to normal food intake. Cardiac activation did not differ between nutritional conditions. Our results indicate that short-term food deprivation amplifies an electrophysiological correlate of the cortical representation of visceral-afferent signals originating from the cardiovascular system. This effect could not be attributed to increased cardiac activation, as estimated by heart rate and nLF HRV, after food deprivation. | |
http://hdl.handle.net/10993/18576 | |
10.1111/psyp.12388 |
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