Effects of transcutaneous auricular vagus nerve stimulation on reversal learning, tonic pupil size, salivary alpha‐amylase, and cortisol.
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| Title: | Effects of transcutaneous auricular vagus nerve stimulation on reversal learning, tonic pupil size, salivary alpha‐amylase, and cortisol. |
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| Authors: | D'Agostini, Martina (AUTHOR), Burger, Andreas M. (AUTHOR), Franssen, Mathijs (AUTHOR), Claes, Nathalie (AUTHOR), Weymar, Mathias (AUTHOR), von Leupoldt, Andreas (AUTHOR), Van Diest, Ilse (AUTHOR) |
| Source: | Psychophysiology. Oct2021, Vol. 58 Issue 10, p1-20. 20p. 1 Color Photograph, 2 Diagrams, 3 Charts, 2 Graphs. |
| Subjects: | Hydrocortisone, Alpha-amylase, Saliva, Ear, Learning, Vagus nerve stimulation |
| Abstract: | 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 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. Contrary to our hypotheses, we did not observe enhancing effects of transcutaneous auricular vagus nerve stimulation (taVNS) on reversal learning and noradrenergic markers. Our findings question whether a commonly used parameter‐setup of taVNS can activate the vagus nerve and modulate noradrenergic activity. These results add to a growing body of zero findings and call for more basic taVNS research regarding optimal stimulation parameters and locations. [ABSTRACT FROM AUTHOR] |
| Copyright of Psychophysiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 152246891 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effects of transcutaneous auricular vagus nerve stimulation on reversal learning, tonic pupil size, salivary alpha‐amylase, and cortisol. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22D'Agostini%2C+Martina%22">D'Agostini, Martina</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burger%2C+Andreas+M%2E%22">Burger, Andreas M.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Franssen%2C+Mathijs%22">Franssen, Mathijs</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Claes%2C+Nathalie%22">Claes, Nathalie</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Weymar%2C+Mathias%22">Weymar, Mathias</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22von+Leupoldt%2C+Andreas%22">von Leupoldt, Andreas</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Van+Diest%2C+Ilse%22">Van Diest, Ilse</searchLink> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Psychophysiology%22">Psychophysiology</searchLink>. Oct2021, Vol. 58 Issue 10, p1-20. 20p. 1 Color Photograph, 2 Diagrams, 3 Charts, 2 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Hydrocortisone%22">Hydrocortisone</searchLink><br /><searchLink fieldCode="DE" term="%22Alpha-amylase%22">Alpha-amylase</searchLink><br /><searchLink fieldCode="DE" term="%22Saliva%22">Saliva</searchLink><br /><searchLink fieldCode="DE" term="%22Ear%22">Ear</searchLink><br /><searchLink fieldCode="DE" term="%22Learning%22">Learning</searchLink><br /><searchLink fieldCode="DE" term="%22Vagus+nerve+stimulation%22">Vagus nerve stimulation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: 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 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. Contrary to our hypotheses, we did not observe enhancing effects of transcutaneous auricular vagus nerve stimulation (taVNS) on reversal learning and noradrenergic markers. Our findings question whether a commonly used parameter‐setup of taVNS can activate the vagus nerve and modulate noradrenergic activity. These results add to a growing body of zero findings and call for more basic taVNS research regarding optimal stimulation parameters and locations. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Psychophysiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/psyp.13885 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 20 StartPage: 1 Subjects: – SubjectFull: Hydrocortisone Type: general – SubjectFull: Alpha-amylase Type: general – SubjectFull: Saliva Type: general – SubjectFull: Ear Type: general – SubjectFull: Learning Type: general – SubjectFull: Vagus nerve stimulation Type: general Titles: – TitleFull: Effects of transcutaneous auricular vagus nerve stimulation on reversal learning, tonic pupil size, salivary alpha‐amylase, and cortisol. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: D'Agostini, Martina – PersonEntity: Name: NameFull: Burger, Andreas M. – PersonEntity: Name: NameFull: Franssen, Mathijs – PersonEntity: Name: NameFull: Claes, Nathalie – PersonEntity: Name: NameFull: Weymar, Mathias – PersonEntity: Name: NameFull: von Leupoldt, Andreas – PersonEntity: Name: NameFull: Van Diest, Ilse IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 00485772 Numbering: – Type: volume Value: 58 – Type: issue Value: 10 Titles: – TitleFull: Psychophysiology Type: main |
| ResultId | 1 |
