Impaired capacity for prospection in the dementias – Theoretical and clinical implications

British Journal of Clinical Psychology - Tập 55 Số 1 - Trang 49-68 - 2016
Muireann Irish1,2,3, Pascale Piolino4,5,6
1Australian Research Council Centre of Excellence in Cognition and Its Disorders, Sydney, New South Wales, Australia
2Neuroscience Research Australia, Randwick, Sydney, New South Wales, Australia
3School of Psychology, The University of New South Wales, Sydney, New South Wales, Australia
4Inserm UMR 894, Center of Psychiatry and Neurosciences, Memory and Cognition Laboratory, Paris, France
5Institute of Psychology University Paris Descartes Sorbonne Paris Cité France
6University Institute of France, Paris, France

Tóm tắt

ObjectivesProspection, or future thinking, refers to the ability to mentally simulate plausible events at a future point in time and draws heavily upon the capacity to retrieve autobiographical details from the past. This review examines the extent to which prospection is compromised in neurodegenerative disorders with a view to identifying (1) underlying mechanisms of future thinking disruption and (2) the impact of future thinking deficits on everyday adaptive functioning.MethodsPubMed and MEDLINE were searched for peer‐reviewed articles published or in press up to 14 October 2014. The key criterion for inclusion was that the primary outcome measure concerned the envisaging of episodic events at a future time point. Search terms of ‘future thinking’, ‘prospection’, and ‘future simulation’ were used in combination with the following terms: ‘dementia’, ‘Mild Cognitive Impairment’, ‘Alzheimer's disease’, ‘semantic dementia’, ‘frontotemporal dementia’, ‘Parkinson's disease’, ‘Motor Neuron disease’, ‘Vascular dementia’, and ‘Dementia with Lewy bodies’ (e.g., ‘future thinking’ AND ‘Alzheimer's disease’). Searches were limited to articles published in English.ResultsA total of nine unique papers were identified in which prospection was the main outcome measure in dementia. Collectively, these studies reveal marked impairments in the ability to simulate personally relevant events at a future time point in dementia syndromes.ConclusionsFuture research investigating the real‐world implications of prospection deficits in dementia is crucial to elucidate the interplay between future‐oriented thought and everyday adaptive functions such as prospective memory, decision‐making, and maintaining a coherent sense of self over time.Practitioner points Marked deficits in future thinking are present in neurodegenerative disorders. Prospection disruption relates to changes in episodic and semantic memory, and executive function. Future studies elucidating the precise mechanisms mediating prospection deficits in dementia are warranted. The potential relationship between future thinking deficits and functional impairment in dementia remains unexplored.

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British Journal of Clinical Psychology

Tập 55 Số 1

49-68

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