Effects of transcutaneous auricular vagus nerve stimulation on reversal learning, tonic pupil size, salivary alpha-amylase, and cortisol
- This study investigated whether transcutaneous auricular vagus nerve stimulation (taVNS) enhances reversal learning and augments noradrenergic biomarkers (i.e., pupil size, cortisol, and salivary alpha-amylase [sAA]). We also explored the effect of taVNS on respiratory rate and cardiac vagal activity (CVA). Seventy-one participants received stimulation of either the cymba concha (taVNS) or the earlobe (sham) of the left ear. After learning a series of cue-outcome associations, the stimulation was applied before and throughout a reversal phase in which cue-outcome associations were changed for some (reversal), but not for other (distractor) cues. Tonic pupil size, salivary cortisol, sAA, respiratory rate, and CVA were assessed at different time points. Contrary to our hypothesis, taVNS was not associated with an overall improvement in performance on the reversal task. Compared to sham, the taVNS group performed worse for distractor than reversal cues. taVNS did not increase tonic pupil size and sAA. Only post hoc analyses indicatedThis study investigated whether transcutaneous auricular vagus nerve stimulation (taVNS) enhances reversal learning and augments noradrenergic biomarkers (i.e., pupil size, cortisol, and salivary alpha-amylase [sAA]). We also explored the effect of taVNS on respiratory rate and cardiac vagal activity (CVA). Seventy-one participants received stimulation of either the cymba concha (taVNS) or the earlobe (sham) of the left ear. After learning a series of cue-outcome associations, the stimulation was applied before and throughout a reversal phase in which cue-outcome associations were changed for some (reversal), but not for other (distractor) cues. Tonic pupil size, salivary cortisol, sAA, respiratory rate, and CVA were assessed at different time points. Contrary to our hypothesis, taVNS was not associated with an overall improvement in performance on the reversal task. Compared to sham, the taVNS group performed worse for distractor than reversal cues. taVNS did not increase tonic pupil size and sAA. Only post hoc analyses indicated that the cortisol decline was steeper in the sham compared to the taVNS group. Exploratory analyses showed that taVNS decreased respiratory rate but did not affect CVA. The weak and unexpected effects found in this study might relate to the lack of parameters optimization for taVNS and invite to further investigate the effect of taVNS on cortisol and respiratory rate.…
Verfasserangaben: | Martina D'AgostiniORCiD, Andreas M. BurgerORCiD, Mathijs FranssenORCiD, Nathalie ClaesORCiD, Mathias WeymarORCiDGND, Andreas von LeupoldtORCiDGND, Ilse Van DiestORCiD |
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DOI: | https://doi.org/10.1111/psyp.13885 |
ISSN: | 1469-8986 |
ISSN: | 1540-5958 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/34245461 |
Titel des übergeordneten Werks (Englisch): | Psychophysiology : journal of the Society for Psychophysiological Research |
Verlag: | Wiley-Blackwell |
Verlagsort: | Malden, Mass. [u.a.] |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Erstveröffentlichung: | 10.07.2021 |
Erscheinungsjahr: | 2021 |
Datum der Freischaltung: | 10.01.2024 |
Freies Schlagwort / Tag: | alpha-amylase; cortisol; noradrenaline; pupillometry; reversal learning; salivary; transcutaneous auricular vagus nerve stimulation |
Band: | 58 |
Ausgabe: | 10 |
Aufsatznummer: | e13885 |
Seitenanzahl: | 20 |
Fördernde Institution: | "Asthenes" long-term structural funding [METH/15/011]; FWOFWO [1SC1719N]; Herculesstichting, Belgium [AKUL/13/07] |
Organisationseinheiten: | Humanwissenschaftliche Fakultät / Strukturbereich Kognitionswissenschaften / Department Psychologie |
Fakultät für Gesundheitswissenschaften | |
DDC-Klassifikation: | 1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie |
6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit | |
Peer Review: | Referiert |
Externe Anmerkung: | Erratum: https://doi.org/10.1111/psyp.13993 |