2019
Neural Scaffolding as the Foundation for Stable Performance of Aging Cerebellum
FILIP, Pavel, Cécile GALLEA, Stéphane LEHERICY, Ovidiu LUNGU, Martin BAREŠ et. al.Základní údaje
Originální název
Neural Scaffolding as the Foundation for Stable Performance of Aging Cerebellum
Autoři
FILIP, Pavel (703 Slovensko, garant, domácí), Cécile GALLEA (250 Francie), Stéphane LEHERICY (250 Francie), Ovidiu LUNGU (124 Kanada) a Martin BAREŠ (203 Česká republika, domácí)
Vydání
Cerebellum, New York, Springer, 2019, 1473-4222
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30103 Neurosciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.129
Kód RIV
RIV/00216224:14110/19:00110173
Organizační jednotka
Lékařská fakulta
UT WoS
000468112900019
Klíčová slova anglicky
Cerebellar aging; fMRI; Functional connectivity; Voxel-based morphometry
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 7. 2019 13:27, Soňa Böhmová
Anotace
V originále
Although recently conceptualized as a neural node essential for a vast spectrum of associative and cognitive processes, the cerebellum has largely eluded attention in the research of aging, where it is marginalized mainly to structural analyses. In the current cross-sectional study of 67 healthy subjects of various ages (20 to 76 years), we sought to provide a comprehensive, multimodal account of age-related changes in the cerebellum during predictive motor timing, which was previously shown to engage this structure. We combined behavioral assessments of performance with functional MRI and voxel-based morphometry using an advanced method to avoid cerebellar deformation and registration imprecisions inherent to the standard processing at the whole-brain level. Higher age was surprisingly associated with stable behavioral performance during predictive motor timing, despite the massive decrease of infratentorial gray matter volume of a far higher extent than in the supratentorial region, affecting mainly the posterior cerebellar lobe. Nonetheless, this very area showed extensive hyperactivation directly correlated with age. The same region had decreased connectivity with the left caudate and increased connectivity with the left fusiform gyrus, the right pallidum, the hippocampus, and the lingual gyrus. Hence, we propose to extend the scaffolding theory of aging, previously limited mainly to the frontal cortices, to include also the cerebellum, which is likewise suffering from atrophy to a far greater extent than the rest of the brain and is similarly counteracting it by bilateral hyperactivation.