Transcutaneous Auricular Vagus Nerve Stimulation Enhances Emotional Processing and Long‐Term Recognition Memory: Electrophysiological Evidence Across Two Studies DOI Creative Commons
Carlos Ventura‐Bort, Manon Giraudier, Mathias Weymar

et al.

Psychophysiology, Journal Year: 2025, Volume and Issue: 62(3)

Published: March 1, 2025

ABSTRACT Recently, we found that continuous transcutaneous auricular vagus nerve stimulation (taVNS) facilitates the encoding and later recollection of emotionally relevant information, as indicated by differences in late positive potential (LPP), memory performance, ERP Old/New effect. Here, aimed to conceptually replicate extend these findings investigating effects different time‐dependent taVNS protocols. In Study 1, an identical paradigm our previous study was employed with interval (30‐s on/off). Participants viewed unpleasant neutral scenes on two consecutive days while receiving or sham completed a recognition test 1 week later. Replicating results, images encoded under taVNS, compared stimulation, elicited larger amplitudes earlier window LPP during encoding, well more pronounced differences. However, no performance were found. 2, followed up synchronizing cycle image presentation determine for off cycles. We could enhancing brain potentials (early differences) improved recollection‐based both images, independently cycle. Overall, results suggest increases electrophysiological correlates emotional retrieval time‐independent manner, substantiating nerve's role processing formation, opening new venues improving mnemonic processes clinical non‐clinical populations.

Language: Английский

Transcutaneous Vagus Nerve Stimulation Enhances Probabilistic Learning DOI Creative Commons
Resul Çakır, İlkim Büyükgüdük, Petek Bilim

et al.

Psychophysiology, Journal Year: 2025, Volume and Issue: 62(3)

Published: March 1, 2025

tVNS enhances various memory and learning mechanisms, but there is inconclusive evidence on whether probabilistic can be enhanced by tVNS. Here, we tested a simplified version of the task with monetary rewards in between-participants design left right-sided cymba conchae tragus stimulation (compared to sham stimulation) sample healthy individuals (n = 80, 64 women, average 26.38 years old). overall accuracy significantly (p 4.09 x 10-04) reduces response times 1.1006 10-49) phase. Reinforcement modelling data revealed that group uses riskier strategy, dedicates more time stimulus encoding motor processes exhibits greater reward sensitivity relative group. The advantage for persists 0.005 p 9.2501 × 10-27 times) during an immediate extinction phase continued which feedback were omitted. Our observations are line proposal reinforcement individuals. This suggests may useful contexts where fast persistence absence advantage, example, case new habits.

Language: Английский

Citations

1
Transcutaneous Auricular Vagus Nerve Stimulation Enhances Emotional Processing and Long‐Term Recognition Memory: Electrophysiological Evidence Across Two Studies DOI Creative Commons
Carlos Ventura‐Bort, Manon Giraudier, Mathias Weymar

et al.

Psychophysiology, Journal Year: 2025, Volume and Issue: 62(3)

Published: March 1, 2025

ABSTRACT Recently, we found that continuous transcutaneous auricular vagus nerve stimulation (taVNS) facilitates the encoding and later recollection of emotionally relevant information, as indicated by differences in late positive potential (LPP), memory performance, ERP Old/New effect. Here, aimed to conceptually replicate extend these findings investigating effects different time‐dependent taVNS protocols. In Study 1, an identical paradigm our previous study was employed with interval (30‐s on/off). Participants viewed unpleasant neutral scenes on two consecutive days while receiving or sham completed a recognition test 1 week later. Replicating results, images encoded under taVNS, compared stimulation, elicited larger amplitudes earlier window LPP during encoding, well more pronounced differences. However, no performance were found. 2, followed up synchronizing cycle image presentation determine for off cycles. We could enhancing brain potentials (early differences) improved recollection‐based both images, independently cycle. Overall, results suggest increases electrophysiological correlates emotional retrieval time‐independent manner, substantiating nerve's role processing formation, opening new venues improving mnemonic processes clinical non‐clinical populations.

Language: Английский

Citations

1