Selective vulnerability of human basal forebrain subsystems in ageing and neuropsychiatric disorders

INTRODUCTION: The basal forebrain (BF) provides the principal cholinergic innervation to the cortex and the hippocampus and is among the earliest regions affected by neurodegenerative processes. Yet, whether its subnuclei differ in how their structural integrity changes with age and in their vulnerability to neurological and psychiatric disorders is unresolved. METHODS: Here, in 81,870 UK Biobank participants aged 45-87 years, we built age- and sex-specific normative models of grey-matter volume in the nucleus basalis of Meynert (Ch4) and the septal/diagonal-band (Ch1-3) compartments of the BF

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