Resting-state connectivity reflects neural plasticity from deafness and reorganisation

Evidence

Brain function in the resting state, or its default-mode activity (Raichle and Snyder 2007 ) is thought to reflect the ability of the brain to predict changes to the environment and track any deviation from the predicted. Resting state connectivity (as measured by the correlation of resting state activity between different cortical regions) is influenced by functional organisation of the brain, and hence is expected to reflect plastic changes such as those due to deafness. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4273

Resting state connectivity (as measured by the correlation of resting state activity between different cortical regions) is influenced by functional organisation of the brain, and hence is expected to reflect plastic changes such as those due to deafness. In this study, we hypothesised that CI users would exhibit resting-state connectivity that was different from that of normally-hearing listeners. — Dijk, Pim van, Physiology, Psychoacoustics and…, 4290

Categorization

• DEFINE: Defines resting-state/default-mode activity as predictive tracking of environmental changes.
• QUESTION: Worth chasing: what exactly does default-mode activity’s predictive function entail at the neurophysiological level for hearing-impaired listeners?
• corroborated: 5 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 4273; Dijk, Pim van, Physiology, Psychoacoustics and…, 4290
• XREF: connects to: Resting-state fMRI reveals connectivity differences in numerous brain regions in tinnitus. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2707; Resting brain activity during deafness predicts later success with a cochlear implant — Dijk, Pim van, Physiology, Psychoacoustics and…, 4274; Cochlear implant users show weaker inter-hemispheric resting connectivity than normal-hearing listeners — Dijk, Pim van, Physiology, Psychoacoustics and…, 4305 (+2 more)

Broader Connections

• Resting-state brain activity reflects predictive tracking and neural plasticity #expands (0.90)
• Cochlear implant users show weaker inter-hemispheric resting connectivity than normal-hearing listeners #expands (0.88) — Dijk, Pim van, Physiology, Psychoacoustics and…, 4305
• Resting-state connectivity analysis must filter physiological noise that inflates correlations #qualifies (0.78)