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Balocchi R, Varanini M, Menicucci D, et al. Heart rate variability in subjects with different hypnotic susceptibility receiving nociceptive stimulation and suggestions of analgesia. Conf Proc IEEE Eng Med Biol Soc. 2005;2005:6996-9doi: 10.1109/IEMBS.2005.1616116.
Balocchi, R., Varanini, M., Menicucci, D., Santarcangelo, E. L., Migliorini, S., Fontani, G., & Carli, G. (2005). Heart rate variability in subjects with different hypnotic susceptibility receiving nociceptive stimulation and suggestions of analgesia. Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 20056996-9. https://doi.org/10.1109/IEMBS.2005.1616116
Balocchi, R, et al. "Heart rate variability in subjects with different hypnotic susceptibility receiving nociceptive stimulation and suggestions of analgesia." Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference vol. 2005 (2005): 6996-9. doi: https://doi.org/10.1109/IEMBS.2005.1616116
Balocchi R, Varanini M, Menicucci D, Santarcangelo EL, Migliorini S, Fontani G, Carli G. Heart rate variability in subjects with different hypnotic susceptibility receiving nociceptive stimulation and suggestions of analgesia. Conf Proc IEEE Eng Med Biol Soc. 2005;2005:6996-9. doi: 10.1109/IEMBS.2005.1616116. PMID: 17281885.
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Conf Proc IEEE Eng Med Biol Soc. 2005;2005:6996-9. doi: 10.1109/IEMBS.2005.1616116.

Heart rate variability in subjects with different hypnotic susceptibility receiving nociceptive stimulation and suggestions of analgesia.

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference

R Balocchi, M Varanini, D Menicucci, E L Santarcangelo, S Migliorini, G Fontani, G Carli

Affiliations

  1. Institute of Clinical Physiology, National Research Council, Pisa, Italy. email: [email protected].

PMID: 17281885 DOI: 10.1109/IEMBS.2005.1616116

Abstract

The aim of the present study was to investigate the possible hypnotizability-related modulation of heart activity during nociceptive stimulation (pressor pain) and during nociceptive stimulation associated with the suggestion of analgesia in not hypnotized healthy individuals with a high (Highs) and a low (Lows) hypnotic susceptibility. ECG and respirogram were recorded. Standard time and frequency domain indexes were evaluated, together with the sd1 and sd2 values of the Poincaré plot over the RR series. Results showed self reports of analgesia in Highs and a significant increase of the respiratory frequency during stimulation in both groups. Very few significant differences between groups and among conditions were detected for mean RR and heart rate variability (HRV) through spectral analysis. and through the Poincaré indexes evaluation. On the contrary, a promising approach seems to be the study of the correlations among standard and Poincaré variables. In particular, different changes in (or even lost of) correlations were enlightened in Highs and Lows, suggesting a different modulation of RR in the two groups, probably due to the very low frequency components of HRV. Different roles of sympathetic and parasympathetic activities during stimulation can be suggested.

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