The pedunculopontine nucleus is related to visual hallucinations in Parkinson's disease: preliminary results of a voxel-based morphometry study.

J Neurol · 2012 · PMC3251778 · PMID 21717194

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showed a trendno p-value reported

Compared to DLB patients, hallucinating PD(D) patients showed a trend of grey matter reductions of the PPN region.

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an apparent trendno p-value reported

However, using a lower statistical threshold of uncorrected P < 0.01 we did see an apparent trend of volume reduction in the right thalamus in PD patients with VH compared to PD patients without VH.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.