Kylie B Tomlin, Ruth Akinlosotu, Emily F Gorman, Emily Schmitt, Stephen Eaton, Kelly P Westlake
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Motor Learning in Older Adults with Mild Cognitive Impairment: A Systematic Review.
The purpose of this systematic review was to synthesize the current evidence on motor learning in mild cognitive impairment (MCI). A search of five databases returned a total of 6058 references, 10 of which met criteria for inclusion in this review. The existing evidence was notably variable with an overall moderate risk of bias. Eight articles compared behavioral motor learning outcomes in MCI and age matched, non-cognitively impaired (NCI) samples. In 37.5% of these studies, the degree of motor skill acquisition in the MCI group was statistically significantly less than in the NCI group. Skill retention was only compared between MCI and NCI samples in one article, which reported a relative reduction in MCI group performance following a 24-h, no-practice delay. Importantly, none of the included articles examined motor skill transfer. We discuss possible sources of heterogeneity among collective findings including variability in motor tasks, outcome measurement, and research design. Further research is needed to support a comprehensive understanding of motor learning in the early stages of age-related cognitive decline. Future investigations should emphasize functional motor tasks and clinically relevant learning outcomes, including retention and transfer of motor skills, while controlling for potentially confounding factors such as motivation and sleep performance. This systematic review was registered with PROSPERO international prospective register of systematic reviews (registration ID CRD42023417329).
期刊介绍:
Neuropsychology Review is a quarterly, refereed publication devoted to integrative review papers on substantive content areas in neuropsychology, with particular focus on populations with endogenous or acquired conditions affecting brain and function and on translational research providing a mechanistic understanding of clinical problems. Publication of new data is not the purview of the journal. Articles are written by international specialists in the field, discussing such complex issues as distinctive functional features of central nervous system disease and injury; challenges in early diagnosis; the impact of genes and environment on function; risk factors for functional impairment; treatment efficacy of neuropsychological rehabilitation; the role of neuroimaging, neuroelectrophysiology, and other neurometric modalities in explicating function; clinical trial design; neuropsychological function and its substrates characteristic of normal development and aging; and neuropsychological dysfunction and its substrates in neurological, psychiatric, and medical conditions. The journal''s broad perspective is supported by an outstanding, multidisciplinary editorial review board guided by the aim to provide students and professionals, clinicians and researchers with scholarly articles that critically and objectively summarize and synthesize the strengths and weaknesses in the literature and propose novel hypotheses, methods of analysis, and links to other fields.