Dysfunction in attentional processing in patients with Parkinson’s disease and visual hallucinations

Julie M. Hall; Claire O’Callaghan; James M. Shine; Alana J. Muller; Joseph R. Phillips; Courtney C. Walton; Simon J.G. Lewis; Ahmed A. Moustafa

doi:10.1007/s00702-016-1528-3

Dysfunction in attentional processing in patients with Parkinson’s disease and visual hallucinations

Julie M. Hall, Claire O’Callaghan, James M. Shine, Alana J. Muller, Joseph R. Phillips, Courtney C. Walton, Simon J.G. Lewis^*, Ahmed A. Moustafa

^*Corresponding author for this work

Research output: Contribution to journal › Article › Research › peer-review

17 Citations (Scopus)

Abstract

Mechanistic insights into visual hallucinations (VH) in Parkinson’s disease (PD) have suggested a role for impaired attentional processes. The current study tested 25 PD patients with and 28 PD patients without VH on the attentional network test. Hallucinators had significantly lower accuracy rates compared to non-hallucinators, but no differences were found in reaction times. This suggests that hallucinators show deficits in attentional processes and conflict monitoring. Our findings provide novel behavioural insights that dovetail with current neurobiological frameworks of VH.

Original language	English
Pages (from-to)	503-507
Number of pages	5
Journal	Journal of Neural Transmission
Volume	123
Issue number	5
DOIs	https://doi.org/10.1007/s00702-016-1528-3
Publication status	Published - 1 May 2016
Externally published	Yes

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title = "Dysfunction in attentional processing in patients with Parkinson{\textquoteright}s disease and visual hallucinations",

abstract = "Mechanistic insights into visual hallucinations (VH) in Parkinson{\textquoteright}s disease (PD) have suggested a role for impaired attentional processes. The current study tested 25 PD patients with and 28 PD patients without VH on the attentional network test. Hallucinators had significantly lower accuracy rates compared to non-hallucinators, but no differences were found in reaction times. This suggests that hallucinators show deficits in attentional processes and conflict monitoring. Our findings provide novel behavioural insights that dovetail with current neurobiological frameworks of VH.",

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AU - Shine, James M.

AU - Muller, Alana J.

AU - Phillips, Joseph R.

AU - Walton, Courtney C.

AU - Lewis, Simon J.G.

AU - Moustafa, Ahmed A.

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AB - Mechanistic insights into visual hallucinations (VH) in Parkinson’s disease (PD) have suggested a role for impaired attentional processes. The current study tested 25 PD patients with and 28 PD patients without VH on the attentional network test. Hallucinators had significantly lower accuracy rates compared to non-hallucinators, but no differences were found in reaction times. This suggests that hallucinators show deficits in attentional processes and conflict monitoring. Our findings provide novel behavioural insights that dovetail with current neurobiological frameworks of VH.

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ER -

Dysfunction in attentional processing in patients with Parkinson’s disease and visual hallucinations

Abstract

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