Effects of rivastigmine in patients with and without visual hallucinations in dementia associated with Parkinson's disease

2006 ◽  
Vol 21 (11) ◽  
pp. 1899-1907 ◽  
Author(s):  
David Burn ◽  
Murat Emre ◽  
Ian McKeith ◽  
Peter Paul De Deyn ◽  
Dag Aarsland ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Visual Hallucinations

Psychotic and Depressive Symptoms in Parkinson's Disease a Study of the Growth Hormone Response to Apomorphine

1995 ◽  
Vol 167 (4) ◽  
pp. 522-526 ◽  
Author(s):  
John D. C. Mellers ◽  
Niall P. Quinn ◽  
Maria A. Ron
Keyword(s):  
Parkinson’S Disease ◽  
Growth Hormone ◽  
Parkinson's Disease ◽  
Depressive Symptomatology ◽  
Past History ◽  
Visual Hallucinations ◽  
Hormone Response ◽  
Receptor Sensitivity ◽  
Dopaminergic Mechanisms ◽  
History Of

BackgroundThe growth hormone (GH) response to apomorphine, thought to reflect central dopaminergic receptor sensitivity, has been reported as enhanced in acute schizophrenia. We investigated this response in relation to the psychotic episodes associated with Parkinson's disease (PD).MethodThe GH response to apomorphine was measured in three groups of patients with Parkinson's disease: those currently psychotic (n = 9), those with a past history of psychosis (n = 7) and those who had never been psychotic (n = 8).ResultsApomorphine-induced GH response was not related to psychosis but was unexpectedly associated with measures of depression.ConclusionsVisual hallucinations were a prominent feature in the psychotic patients and the atypical nature of these psychoses might explain why we found no evidence of dopaminergic sensitivity. Serotonergic dysfunction would be in keeping with this. Dopaminergic mechanisms may contribute to the minor depressive symptomatology seen in PD.

Visual hallucinations and illusions in Parkinson’s disease: the role of ocular pathology

2020 ◽  
Author(s):  
Ana Marques ◽  
Steven Beze ◽  
Bruno Pereira ◽  
Carine Chassain ◽  
Nathalie Monneyron ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Visual Hallucinations ◽  
Ocular Pathology

scholarly journals Dopamine and Functional Connectivity in Patients With Parkinson's Disease and Visual Hallucinations

2020 ◽  
Vol 35 (4) ◽  
pp. 704-705 ◽  
Author(s):  
Alice Powell ◽  
Alana J. Muller ◽  
Claire O'Callaghan ◽  
Marion Sourty ◽  
James M. Shine ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Functional Connectivity ◽  
Visual Hallucinations
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