BACKGROUND: It is unknown whether the cerebellum affects cognitive function in an aging community-dwelling population. In a population-based study on 3745 nondemented individuals aged 45 years and above, we investigated the relationship between cerebellar volume and cognitive function. METHODS: Brain volumes were obtained using automatic tissue segmentation of magnetic resonance imaging scans. Cognitive functioning was assessed using MMSE and cognitive compound scores of global cognition, executive function, information processing speed, memory, and motor speed. Linear regression modeling was used to study the associations between cerebellar volumes and cognitive measures, independent of cerebral volumes. RESULTS: We found a relationship between larger cerebellar volume and better global cognition, executive function, information processing speed, and motor speed. After adjustment for cerebral volume, only cerebellar gray matter volume remained borderline significantly associated with global cognition and information processing speed. After Bonferroni correction, the few associations found between cerebellar volume and cognition disappeared. CONCLUSIONS: We only found a minor relationship between larger cerebellar volume and better cognition in healthy older adults, which further attenuated after correcting for cerebral volume. Our findings support the notion that cerebellar volume has an influence on cognition in aging, but that it is not the major leading structure.
BACKGROUND: It is unknown whether the cerebellum affects cognitive function in an aging community-dwelling population. In a population-based study on 3745 nondemented individuals aged 45 years and above, we investigated the relationship between cerebellar volume and cognitive function. METHODS: Brain volumes were obtained using automatic tissue segmentation of magnetic resonance imaging scans. Cognitive functioning was assessed using MMSE and cognitive compound scores of global cognition, executive function, information processing speed, memory, and motor speed. Linear regression modeling was used to study the associations between cerebellar volumes and cognitive measures, independent of cerebral volumes. RESULTS: We found a relationship between larger cerebellar volume and better global cognition, executive function, information processing speed, and motor speed. After adjustment for cerebral volume, only cerebellar gray matter volume remained borderline significantly associated with global cognition and information processing speed. After Bonferroni correction, the few associations found between cerebellar volume and cognition disappeared. CONCLUSIONS: We only found a minor relationship between larger cerebellar volume and better cognition in healthy older adults, which further attenuated after correcting for cerebral volume. Our findings support the notion that cerebellar volume has an influence on cognition in aging, but that it is not the major leading structure.
Authors: A Buhrmann; A M A Brands; J van der Grond; C Schilder; R C van der Mast; N Rius Ottenheim; J C Foster-Dingley; A S Bertens; E van den Berg Journal: Cerebellum Date: 2021-02 Impact factor: 3.847
Authors: Daniëlle B P Eekers; Lieke In 't Ven; Sabine Deprez; Linda Jacobi; Erik Roelofs; Ann Hoeben; Philippe Lambin; Dirk de Ruysscher; Esther G C Troost Journal: Clin Transl Radiat Oncol Date: 2017-11-23
Authors: Piotr Gronek; Stefan Balko; Joanna Gronek; Adam Zajac; Adam Maszczyk; Roman Celka; Agnieszka Doberska; Wojciech Czarny; Robert Podstawski; Cain C T Clark; Fang Yu Journal: Aging Dis Date: 2019-12-01 Impact factor: 6.745