Processing of affective and emotionally neutral tactile stimuli in the insular cortex
| Autor: | Håkan Olausson, Göran Starck, Monika Davidovic |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
0301 basic medicine daCC dorsal anterior cingulate cortex Neurologi VAS visual analogue scale Emotions ROI region of interest Insula BOLD blood oxygenation level dependent 0302 clinical medicine GLM general linear model CT C tactile daIC dorsal anterior insular cortex Default mode network Cerebral Cortex LpIC left posterior insular cortex vaIC ventral anterior insular cortex Brain Mapping Anterior insula medicine.diagnostic_test pCC posterior cingulate cortex Functional connectivity fMRI lcsh:QP351-495 Psychophysiological Interaction Magnetic Resonance Imaging Resting state networks FEW family-wise error Touch Neurology RdaIC right dorsal anterior insular cortex behavior and behavior mechanisms Female IC insular cortex PPI psychophysiological interaction Psychology psychological phenomena and processes Adult vmPFC ventro medial prefrontal cortex pgaCC pregenual anterior cingulate cortex mTG medial temporal gyrus MNI Montreal Neurological Institute Cognitive Neuroscience pIC posterior insular cortex Insular cortex lfrs low frequency resting state behavioral disciplines and activities Article Tactile stimuli Young Adult 03 medical and health sciences mental disorders medicine Humans CEN central executive network GM grey matter DMN default mode network SN salience network 030104 developmental biology lcsh:Neurophysiology and neuropsychology nervous system aIC anterior insular cortex Functional magnetic resonance imaging MRI magnetic resonance imaging Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Developmental Cognitive Neuroscience, Vol 35, Iss, Pp 94-103 (2019) Developmental Cognitive Neuroscience |
| ISSN: | 1878-9293 |
| Popis: | The insula is important for the processing of pleasant aspects of touch whereas its role in the processing of emotionally neutral touch has been less explored. Here, we used a network approach to investigate the insular processing of pleasant stroking touch and emotionally neutral vibratory touch, analysing functional magnetic resonance imaging data from 23 healthy adult participants. Vibration and skin stroking activated areas in the posterior, middle and anterior insula. Psychophysiological interaction analyses suggested that skin stroking increased functional connectivity between the posterior and ventral anterior insula. Vibration instead increased functional connectivity between the posterior and dorsal anterior insula, and induced a stronger decrease of the default mode network activity compared to stroking. These results confirmed findings from previous studies showing that the posterior insula processes affective touch information. We suggest that this is accomplished by relaying tactile information from the posterior insula to ventral anterior insula, an area tightly connected to the emotional parts of the brain. However, our results also suggested that the insula processes tactile information with less emotional valence. A central hub in this processing seemed to be the right dorsal anterior insula. Keywords: Touch, fMRI, Insula, Resting state networks |
| Databáze: | OpenAIRE |
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