Cognitive Changes

Effects on memory of verbal labelling for hand movements in persons with Alzheimer’s disease.


Miyahara, M. (2003).
American Journal of Alzheimer’s Disease and Other Dementias, 18(6), 349-352.

This New Zealand study examined whether patients diagnosed with dementia of the Alzheimer type could form verbal labels to remember non-meaningful sequences of hand movements, spontaneously or with instruction and whether this was related to scores on the Mini-Mental State Examination (MMSE). 

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Visual Object and Face Processing in Mild-to-Moderate Alzheimer’s Disease: From Segmentation to Imagination.


Tippett, L. J., Blackwood, K., & Farah, M. J. (2003).
Neuropsychologia, 41(4), 453-468

Little is known about the fate of higher-level visual perception and visual mental imagery in the early stages of Alzheimer’s disease. This study assessed these abilities in a group of New Zealanders with mild-to moderate Alzheimer’s disease.

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Category Specific Deficits in Alzheimer’s Disease: Fact or Artefact?


Tippett, L. J., Meier, S. L., Blackwood, K., & Diaz-Asper, C. (2007).
Cortex: A Journal Devoted to the Study of the Nervous System and Behaviour, 43(7), 907–920.

This study reports two New Zealand experiments investigating whether impairments in semantic memory that commonly occur in Alzheimer’s Disease occur along category- specific lines. The authors conclude that AD does not generally lead to a selective category loss in semantic knowledge.

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