This study investigates brain-heart dynamics during visual emotional elicitation in healthy subjects through linear and nonlinear coupling measures of EEG spectrogram and instantaneous heart rate estimates. To this extent, affective pictures including different combinations of arousal and valence levels, gathered from the International Affective Picture System, were administered to twenty-two healthy subjects. Time-varying maps of cortical activation were obtained through EEG spectral analysis, whereas the associated instantaneous heartbeat dynamics was estimated using inhomogeneous point-process linear models. Brain-Heart linear and nonlinear coupling was estimated through the Maximal Information Coefficient (MIC), considering EEG time-varying spectra and point-process estimates defined in the time and frequency domains. As a proof of concept, we here show preliminary results considering EEG oscillations in the θ band (4-8 Hz). This band, indeed, is known in the literature to be involved in emotional processes. MIC highlighted significant arousal-dependent changes, mediated by the prefrontal cortex interplay especially occurring at intermediate arousing levels. Furthermore, lower and higher arousing elicitations were associated to not significant brain-heart coupling changes in response to pleasant/unpleasant elicitations.

Brain-heart linear and nonlinear dynamics during visual emotional elicitation in healthy subjects / Valenza G.; Greco A; Gentili C.; Lanata A.; Toschi N.; Barbieri R.; Sebastiani L.; Menicucci D.; Gemignani A.; Scilingo E.P.. - ELETTRONICO. - (2016), pp. 5497-5500. (Intervento presentato al convegno 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016 tenutosi a Orlando (Florida) nel 16/08/2016-20/08/2016) [10.1109/EMBC.2016.7591971].

Brain-heart linear and nonlinear dynamics during visual emotional elicitation in healthy subjects

Lanata A.;
2016

Abstract

This study investigates brain-heart dynamics during visual emotional elicitation in healthy subjects through linear and nonlinear coupling measures of EEG spectrogram and instantaneous heart rate estimates. To this extent, affective pictures including different combinations of arousal and valence levels, gathered from the International Affective Picture System, were administered to twenty-two healthy subjects. Time-varying maps of cortical activation were obtained through EEG spectral analysis, whereas the associated instantaneous heartbeat dynamics was estimated using inhomogeneous point-process linear models. Brain-Heart linear and nonlinear coupling was estimated through the Maximal Information Coefficient (MIC), considering EEG time-varying spectra and point-process estimates defined in the time and frequency domains. As a proof of concept, we here show preliminary results considering EEG oscillations in the θ band (4-8 Hz). This band, indeed, is known in the literature to be involved in emotional processes. MIC highlighted significant arousal-dependent changes, mediated by the prefrontal cortex interplay especially occurring at intermediate arousing levels. Furthermore, lower and higher arousing elicitations were associated to not significant brain-heart coupling changes in response to pleasant/unpleasant elicitations.
2016
Proceedings of 38th Annual International Conference of the IEEE Engineering in medicine and Biology Society (EMBC)
38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016
Orlando (Florida)
16/08/2016-20/08/2016
Valenza G.; Greco A; Gentili C.; Lanata A.; Toschi N.; Barbieri R.; Sebastiani L.; Menicucci D.; Gemignani A.; Scilingo E.P.
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1192162
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