期刊
JOURNAL OF COMPARATIVE NEUROLOGY
卷 524, 期 8, 页码 1608-1615出版社
WILEY
DOI: 10.1002/cne.23884
关键词
insular cortex; anterior insula; laughter; emotional arousal; fMRI; autonomic; positive emotion; tickle
资金
- Canton of Fribourg, Switzerland
- Schweizerischer Nationalfonds, Bern, Switzerland
The insular cortex is fundamentally involved in the processing of interoceptive information. It has been postulated that the integrative monitoring of the bodily responses to environmental stimuli is crucial for the recognition and experience of emotions. Because emotional arousal is known to be closely coupled to functions of the anterior insula, we suspected laughter to be associated primarily with neuronal activity in this region. An anatomically constrained re-analysis of our imaging data pertaining to ticklish laughter, to inhibited ticklish laughter, and to voluntary laughter revealed regional differences in the levels of neuronal activity in the posterior and mid-/anterior portions of the insula. Ticklish laughter was associated specifically with right ventral anterior insular activity, which was not detected under the other two conditions. Hence, apparently, only laughter that is evoked as an emotional response bears the signature of autonomic arousal in the insular cortex. J. Comp. Neurol. 524:1608-1615, 2016. (c) 2015 Wiley Periodicals, Inc.
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