White matter microstructure of attentional networks predicts attention and consciousness functional interactions.
Brain Struct Funct. 2017-09-13; 223(2): 653-668
DOI: 10.1007/s00429-017-1511-2
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1. Brain Struct Funct. 2018 Mar;223(2):653-668. doi: 10.1007/s00429-017-1511-2. Epub
2017 Sep 13.
White matter microstructure of attentional networks predicts attention and
consciousness functional interactions.
Chica AB(1), Thiebaut de Schotten M(2), Bartolomeo P(3), Paz-Alonso PM(4).
Author information:
(1)Departamento de Psicología Experimental, and Brain, Mind, and Behavior
Research Centre (CIMCYC), Universidad de Granada, Campus de Cartuja S/N, 18071,
Granada, Spain. .
(2)Brain Connectivity and Behaviour Group, Frontlab, Institut du Cerveau et de la
Moelle épinière (ICM), CNRS U7225 and, Inserm U1127, GH Pitié-Salpêtrière, Paris,
France.
(3)INSERM U 1127, CNRS, UMR 7225, Sorbonne Universités, and Université Pierre et
Marie Curie-Paris 6, UMR S 1127, Institut du Cerveau et de la Moelle épinière
(ICM), 75013, Paris, France.
(4)BCBL, Basque Center On Cognition, Brain and Language, Donostia, Spain.
Attention is considered as one of the pre-requisites of conscious perception.
Phasic alerting and exogenous orienting improve conscious perception of
near-threshold information through segregated brain networks. Using a multimodal
neuroimaging approach, combining data from functional MRI (fMRI) and
diffusion-weighted imaging (DWI), we investigated the influence of white matter
properties of the ventral branch of superior longitudinal fasciculus (SLF III) in
functional interactions between attentional systems and conscious perception.
Results revealed that (1) reduced integrity of the left hemisphere SLF III was
predictive of the neural interactions observed between exogenous orienting and
conscious perception, and (2) increased integrity of the left hemisphere SLF III
was predictive of the neural interactions observed between phasic alerting and
conscious perception. Our results combining fMRI and DWI data demonstrate that
structural properties of the white matter organization determine attentional
modulations over conscious perception.
DOI: 10.1007/s00429-017-1511-2
PMID: 28905109 [Indexed for MEDLINE]