First link is particularly interesting.
Damaged fiber tracts of the nucleus basalis of Meynert in
Parkinson's disease patients with visual hallucinations.
The primary concentration of cholinergic neurons/cell bodies that
project to the neocortex are in the nucleus basalis which is located
in the substantia innominata of the anterior perforated substance.
These cholinergic neurons have a number of important functions in
particular with respect to modulating the ratio of reality and
virtual reality components of visual perception.
Analysis of the substantia innominata volume in patients with
Parkinson's disease with dementia, dementia with lewy bodies, and
Conclusions: Our data suggest that the SI loss is greater in
synucleinopathy-related dementia (PDD or DLB) than in AD and that
the contribution of the SI to cognitive performance is greater in
synucleinopathy than in amyloidopathy.
Basal Forebrain Cholinergic Circuits and Signaling in Cognition and
Molecular imaging of neuropsychiatric symptoms in Alzheimer's and