Functional integration of anterior insula related to meaning in life and loneliness

Zhang, Yajie; Ma, Sai; Liu, Youyi; Kong, Feng; Zhen, Zonglei

doi:10.1016/j.jad.2023.05.067

Cited by 1 publication

(1 citation statement)

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“…Functional neuroimaging studies have shown that the anterior and posterior functions of the insula are spatially distinct. For example, the anterior insular cortex (AIC) is active when tracking and sensing pain, while the posterior insular cortex (PIC) is involved in harmless temperature perception [ 12 , 13 ]. More recently, the “pain matrix” has been redefined as the cortical network that responds to nociceptive stimuli and includes the somatosensory cortex, the insular cortex, and the medial cingulate cortex.…”

Section: Introductionmentioning

confidence: 99%

Connectivity of the insular subdivisions differentiates posttraumatic headache-associated from nonheadache-associated mild traumatic brain injury: an arterial spin labelling study

Li,

Zhang,

Ren

et al. 2024

J Headache Pain

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Objective The insula is an important part of the posttraumatic headache (PTH) attributed to mild traumatic brain injury (mTBI) neuropathological activity pattern. It is composed of functionally different subdivisions and each of which plays different role in PTH neuropathology. Methods Ninety-four mTBI patients were included in this study. Based on perfusion imaging data obtained from arterial spin labelling (ASL) perfusion magnetic resonance imaging (MRI), this study evaluated the insular subregion perfusion-based functional connectivity (FC) and its correlation with clinical characteristic parameters in patients with PTH after mTBI and non-headache mTBI patients. Results The insular subregions of mTBI + PTH (mTBI patients with PTH) and mTBI-PTH (mTBI patients without PTH) group had positive perfusion-based functional connections with other insular nuclei and adjacent discrete cortical regions. Compared with mTBI-PTH group, significantly increased resting-state perfusion-based FC between the anterior insula (AI) and middle cingulate cortex (MCC)/Rolandic operculum (ROL), between posterior insula (PI) and supplementary motor area (SMA), and decreased perfusion-based FC between PI and thalamus were found in mTBI + PTH group. Changes in the perfusion-based FC of the left posterior insula/dorsal anterior insula with the thalamus/MCC were significant correlated with headache characteristics. Conclusions Our findings provide new ASL-based evidence for changes in the perfusion-based FC of the insular subregion in PTH patients attributed to mTBI and the association with headache features, revealing the possibility of potential neuroplasticity after PTH. These findings may contribute to early diagnosis of the disease and follow-up of disease progression.

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Section: Introductionmentioning

confidence: 99%