Visual memory errors in Parkinson's disease patient with visual hallucinations

Barnes, J. and Boubert, L. 2011. Visual memory errors in Parkinson's disease patient with visual hallucinations. International Journal of Neuroscience. 121 (3), pp. 159-164. https://doi.org/10.3109/00207454.2010.539308

TitleVisual memory errors in Parkinson's disease patient with visual hallucinations
AuthorsBarnes, J. and Boubert, L.
Abstract

The occurrences of visual hallucinations seem to be more prevalent in low light and hallucinators tend to be more prone to false positive type errors in memory tasks. Here we investigated whether the richness of stimuli does indeed affect recognition differently in hallucinating and nonhallucinating participants, and if so whether this difference extends to identifying spatial context. We compared 36 Parkinson's disease (PD) patients with visual hallucinations, 32 Parkinson's patients without hallucinations, and 36 age-matched controls, on a visual memory task where color and black and white pictures were presented at different locations. Participants had to recognize the pictures among distracters along with the location of the stimulus. Findings revealed clear differences in performance between the groups. Both PD groups had impaired recognition compared to the controls, but those with hallucinations were significantly more impaired on black and white than on color stimuli. In addition, the group with hallucinations was significantly impaired compared to the other two groups on spatial memory. We suggest that not only do PD patients have poorer recognition of pictorial stimuli than controls, those who present with visual hallucinations appear to be more heavily reliant on bottom up sensory input and impaired on spatial ability.

JournalInternational Journal of Neuroscience
Journal citation121 (3), pp. 159-164
ISSN0020-7454
Year2011
PublisherTaylor & Francis
Digital Object Identifier (DOI)https://doi.org/10.3109/00207454.2010.539308
Publication dates
Published08 Dec 2010

Related outputs

Time Perception in First Year Undergraduates: Correlation with Stress, Anxiety and Depression
Koebeli, C., Edginton, T.L., Morgan, K.D. and Boubert, L. 2023. Time Perception in First Year Undergraduates: Correlation with Stress, Anxiety and Depression. 17th International Technology, Education and Development Conference. Valencia, Spain 06 - 08 Mar 2023 IATED Digital Library. https://doi.org/10.21125/inted.2023.1559

The Tokophobia Severity Scale (TSS): measurement model, power and sample size considerations.
Martin, Colin R, Jones, Catriona, Huang, Chao, Jomeen, Julie, Boubert, Laura and Marshall, Claire A 2021. The Tokophobia Severity Scale (TSS): measurement model, power and sample size considerations. Journal of Reproductive and Infant Psychology. https://doi.org/10.1080/02646838.2021.1931070

An integrated psychology virtual research ethics committee
Boubert, L. and Taylor, D.A. 2016. An integrated psychology virtual research ethics committee. EDULEARN16. Barcelona 04 - 06 Jul 2016 IATED Academy. https://doi.org/10.21125/edulearn.2016.1731

Behavioural coping patterns in Parkinson's patients with visual hallucinations
Barnes, J., Connelly, V., Boubert, L. and and Maravic, K. 2013. Behavioural coping patterns in Parkinson's patients with visual hallucinations. Journal of Neuropsychology. 7 (2), pp. 326-34. https://doi.org/10.1111/jnp.12016

Sleep patterns in Parkinson's disease patients with visual hallucinations
Barnes, J., Connelly, V., Wiggs, L., Boubert, L. and Maravic, K. 2010. Sleep patterns in Parkinson's disease patients with visual hallucinations. International Journal of Neuroscience. 120 (8), pp. 564-569. https://doi.org/10.3109/00207454.2010.494790

Executive functions are impaired in patients with Parkinson's disease with visual hallucinations
Barnes, J. and Boubert, L. 2008. Executive functions are impaired in patients with Parkinson's disease with visual hallucinations. Journal of Neurology, Neurosurgery and Psychiatry. 79 (2), pp. 190-192. https://doi.org/10.1136/jnnp.2007.116202

Visual memory transformations in dyslexia
Barnes, J., Hinkley, L., Masters, S. and Boubert, L. 2007. Visual memory transformations in dyslexia. Perceptual and Motor Skills. 104, pp. 881-891.

Reality monitoring and visual hallucinations in Parkinson's disease
Barnes, J., Boubert, L., Harris, J.R., Lee, A. and David, A.S. 2003. Reality monitoring and visual hallucinations in Parkinson's disease. Neuropsychologia. 41 (5), pp. 565-574. https://doi.org/10.1016/S0028-3932(02)00182-3

Permalink - https://westminsterresearch.westminster.ac.uk/item/951w3/visual-memory-errors-in-parkinson-s-disease-patient-with-visual-hallucinations


Share this

Usage statistics

96 total views
0 total downloads
These values cover views and downloads from WestminsterResearch and are for the period from September 2nd 2018, when this repository was created.