Temporal instability of salience network activity in migraine with aura.

This study aims to investigate whether intra-network dynamic functional connectivity and causal interactions of the salience network is altered in the interictal term of migraine. 32 healthy controls, 37 migraineurs without aura and 20 migraineurs with aura were recruited. Participants underwent a T...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Veréb Dániel
Szabó Nikoletta
Tuka Bernadett
Tajti János
Király András
Faragó Péter
Kocsis Krisztián
Tóth Eszter
Bozsik Bence
Kincses Bálint
Vécsei László
Kincses Zsigmond Tamás
Dokumentumtípus: Cikk
Megjelent: 2019
Sorozat:PAIN 161 No. 4
doi:10.1097/j.pain.0000000000001770

mtmt:31040418
Online Access:http://publicatio.bibl.u-szeged.hu/17940
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520 3 |a This study aims to investigate whether intra-network dynamic functional connectivity and causal interactions of the salience network is altered in the interictal term of migraine. 32 healthy controls, 37 migraineurs without aura and 20 migraineurs with aura were recruited. Participants underwent a T1-weighted scan and resting-state fMRI protocol inside a 1.5T MR scanner. We obtained average spatial maps of resting-state networks using group independent component analysis, which yielded subject-specific time series via a dual regression approach. Salience network ROIs (bilateral insulae and prefrontal cortices, dorsal anterior cingulate cortex) were obtained from the group average map via cluster-based thresholding. To describe intra-network connectivity, average and dynamic conditional correlation was calculated. Causal interactions between the default-mode, dorsal attention and salience network were characterised by spectral Granger's causality. Time-averaged correlation was lower between the right insula and prefrontal cortex in migraine without aura vs. with aura and healthy controls (p<0.038, p<0.037). Variance of dynamic conditional correlation was higher in migraine with aura vs. healthy controls and migraine with aura vs. without aura between the right insula and dorsal anterior cingulate cortex (p<0.011, p<0.026), and in migraine with aura vs. healthy controls between the dorsal anterior cingulate and left prefrontal cortex (p<0.021). Causality was weaker in the <0.05 Hz frequency range between the salience and dorsal attention networks in migraine with aura (p<0.032). Overall, migraineurs with aura exhibit more fluctuating connections in the salience network, which also affect network interactions, and could be connected to altered cortical excitability and increased sensory gain. 
700 0 1 |a Szabó Nikoletta  |e aut 
700 0 1 |a Tuka Bernadett  |e aut 
700 0 1 |a Tajti János  |e aut 
700 0 1 |a Király András  |e aut 
700 0 1 |a Faragó Péter  |e aut 
700 0 1 |a Kocsis Krisztián  |e aut 
700 0 1 |a Tóth Eszter  |e aut 
700 0 1 |a Bozsik Bence  |e aut 
700 0 1 |a Kincses Bálint  |e aut 
700 0 1 |a Vécsei László  |e aut 
700 0 1 |a Kincses Zsigmond Tamás  |e aut 
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