Resting-state brain activity reflects predictive tracking and neural plasticity

Evidence

Lee et al. ( 2003 ) used positron emission tomography (PET) to compare resting-state activity in 9 profoundly deaf individuals and 9 age-matched normal-hearing controls. They found that glucose metabolism in some auditory areas was lower than in normally-hearing people, but significantly increased with duration of deafness, and concluded that plasticity occurs in the sensory-deprived mature brain. Later, they showed that children with good speech understanding 3 years after implantation had enhanced metabolic activity in the left prefrontal cortex and decreased metabolic activity in right Heschl’s gyrus and in the posterior superior temporal sulcus before implantation compared to those with poor speech understanding (Lee et al. 2007 ). They argued that increased activity in the resting state in auditory areas may reflect cross modal plasticity that is detrimental to later success with the cochlear implant (CI). — Dijk, Pim van, Physiology, Psychoacoustics and…, 4274 (#exemplifies, via linked claim)

Categorization

  • XREF: connects to: Resting-state connectivity reflects neural plasticity from deafness and reorganisation — Dijk, Pim van, Physiology, Psychoacoustics and…, 4273; Resting brain activity during deafness predicts later success with a cochlear implant — Dijk, Pim van, Physiology, Psychoacoustics and…, 4274

Broader Connections