Title
State and trait characteristics of anterior insula time-varying functional connectivity.
Abstract
The human anterior insula (aINS) is a topographically organized brain region, in which ventral portions contribute to socio-emotional function through limbic and autonomic connections, whereas the dorsal aINS contributes to cognitive processes through frontal and parietal connections. Open questions remain, however, regarding how aINS connectivity varies over time. We implemented a novel approach combining seed-to-whole-brain sliding-window functional connectivity MRI and k-means clustering to assess time-varying functional connectivity of aINS subregions. We studied three independent large samples of healthy participants and longitudinal datasets to assess inter- and intra-subject stability, and related aINS time-varying functional connectivity profiles to dispositional empathy. We identified four robust aINS time-varying functional connectivity modes that displayed both “state” and “trait” characteristics: while modes featuring connectivity to sensory regions were modulated by eye closure, modes featuring connectivity to higher cognitive and emotional processing regions were stable over time and related to empathy measures.
Year
DOI
Venue
2020
10.1016/j.neuroimage.2019.116425
NeuroImage
Keywords
Field
DocType
Anterior insula,Socio-emotional functioning,Time-varying functional connectivity,Trait,State
Functional Connectivity MRI,Empathy,Anterior insula,Dorsum,Trait,Psychology,Eye closure,Cognitive psychology,Cognition,Sensory system
Journal
Volume
ISSN
Citations 
208
1053-8119
3
PageRank 
References 
Authors
0.40
0
19