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Article Abstract
Background: Complex visual hallucinations (VH) are a common complication of Parkinson's disease (PD). Recent studies have demonstrated relevance of face pareidolia to VH in PD and Lewy body dementia (LBD).
Objective: This study examined utility of the 20-item Noise Pareidolia Task (NPT-20) in assessing visuoperceptual disturbances associated with VH in PD.
Methods: Retrospective chart review included 46 consecutive PD patients who completed NPT-20 during clinical neuropsychological evaluation.
Results: About half the sample (43%) reported VH. PD with VH made significantly more false-positive pareidolia errors on the NPT-20 ( < 0.0001). A cut-off of 2 errors yielded 40% sensitivity, 100% specificity to VH; cut-off of 1 yielded 75% sensitivity, 81% specificity. NPT-20 was not associated with any other clinical or demographic factor. Across groups, NPT-20 evinced moderate correlations with visuospatial functioning and visual memory.
Conclusions: Current findings support utility of the NPT-20 for evaluating visuoperceptual disturbances associated with VH in PD.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9941920 | PMC |
| http://dx.doi.org/10.1002/mdc3.13599 | DOI Listing |
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