Cognitive correlates of visual hallucinations in dementia associated with Parkinson's disease

2011 ◽  
Vol 26 (5) ◽  
pp. 824-829 ◽  
Author(s):  
Kolbjorn Bronnick ◽  
Murat Emre ◽  
Sibel Tekin ◽  
Siri B. Haugen ◽  
Dag Aarsland
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Visual Hallucinations ◽  
Cognitive Correlates

Cognitive correlates of visual hallucinations in non-demented Parkinson's disease patients

2013 ◽  
Vol 19 (9) ◽  
pp. 795-799 ◽  
Author(s):  
D.H. Hepp ◽  
C.C. da Hora ◽  
T. Koene ◽  
B.M. Uitdehaag ◽  
O.A. van den Heuvel ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Visual Hallucinations ◽  
Cognitive Correlates

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.

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