Transcutaneous vagus nerve stimulation improves interoceptive accuracy
Transcutaneous vagus nerve stimulation improves interoceptive accuracy
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经皮迷走神经刺激提高内感受准确性
DOI：
10.1016/j.neuropsychologia.2019.107201
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发表时间：
2019
期刊：
影响因子：
2.6
通讯作者：
R. Azevedo
中科院分区：
文献类型：
--
作者：
V. Villani;M. Tsakiris;M. Tsakiris;R. Azevedo;R. Azevedo;R. Azevedo
如何提高内感受准确性，即识别内感受信号的客观能力？在本研究中，我们研究了迷走神经耳支（taVNS）的无创刺激是否调节心脏内感受准确性、内感受敏感性（即识别身体信号的信心）和内感受意识（即评估一个人在客观任务中的能力）。使用单盲受试者内设计，我们比较了参与者在主动和假 taVNS 刺激期间在心跳计数任务和心跳辨别任务上的表现。结果显示，在主动 taVNS 期间，心跳辨别任务的准确性有所提高，但心跳计数任务的准确性却没有提高。参与者在主动刺激期间也更加自信，但内感受意识不受 taVNS 调节。这些发现表明 taVNS 可以调节内感受处理，并表明其作为研究体脑相互作用工具的潜力。
How can interoceptive accuracy, i.e. the objective ability to identify interoceptive signals, be improved? In the present study, we investigated whether non-invasive stimulation of the auricular branch of the vagus nerve (taVNS) modulates cardiac interoceptive accuracy, interoceptive sensibility, i.e. confidence in the identification of bodily signals, and interoceptive awareness, i.e. the capacity to evaluate one's ability in the objective task. Using a single-blind within-subjects design we compared participants' performance on the heartbeat counting task and on the heartbeat discrimination task during active and sham taVNS stimulation. Results revealed improved accuracy during active taVNS on the heartbeat discrimination task but not on the heartbeat counting task. Participants were also more confident during active stimulation, but interoceptive awareness was not modulated by taVNS. These findings show that taVNS can modulate interoceptive processing and suggest its potential as a tool to investigate body-brain interactions.
影响因子：
3
作者：
Herbert, Beate M.;Pollatos, Olga
通讯作者：
Pollatos, Olga
影响因子：
2.9
作者：
Ventura-Bort C;Wirkner J;Genheimer H;Wendt J;Hamm AO;Weymar M
通讯作者：
Weymar M
影响因子：
3.7
作者：
Kleckner IR;Wormwood JB;Simmons WK;Barrett LF;Quigley KS
通讯作者：
Quigley KS