Subtle memory and attentional deficits revealed in an Irish stroke patient sample using domain-specific cognitive tasks

Duffin, Joseph; Collins, Rónán; Coughlan, Tara; O’Neill, Desmond; Roche, Richard; Commins, Seán

doi:10.1080/13803395.2012.690368

Cited by 15 publications

(7 citation statements)

References 33 publications

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“…The observation of the patient completing the cognitive assessment was described as informing rehabilitation plans as much as the actual cognitive assessment scores. However, it may be that subtle cognitive problems may be missed if inappropriate assessment measures are not interpreted appropriately (Chan et al., 2014; Duffin et al., 2012). Again, our findings are consistent with those of Korner‐Bitensky et al.…”

Section: Discussionmentioning

confidence: 99%

Cognitive Management Pathways in Stroke Services (COMPASS): A qualitative investigation of key issues in relation to community stroke teams undertaking cognitive assessments

Ablewhite

Geraghty

Nair

et al. 2019

British Journal of Occupational Therapy

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Introduction: Cognitive problems are common after stroke and their identification and management is important for survivors, carers and clinicians. However, the appropriateness of the screening methods and ways in which results inform community clinical care have not been established. The aim of this phase of the Cognitive Management Pathways in Stroke Services study was to explore key issues to undertaking cognitive assessment, particularly in community settings. Method: Participants recruited via local and national contacts, and from an earlier phase of the Cognitive Management Pathways in Stroke Services research, took part in face-to-face or telephone semi-structured interviews. Data were analysed using framework analysis. Findings: Twenty-one occupational therapists were recruited. Availability of cognitive tests, personal knowledge, previous experience, training, cost, time and familiarity were key factors in conducting cognitive screening assessments and interpreting results. Other factors included patient language or mood deficits, the assessment environment, lack of experience, confidence and workload. Conclusion: There is variation in the cognitive screening of stroke survivors in the community. Screening assessments are being used by occupational therapists based on availability and familiarity, rather than evidence of their validity and sensitivity. There is also variation in the interpretation of such assessments, which has implications for clinical practice.

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Section: Discussionmentioning

confidence: 99%

Cognitive Management Pathways in Stroke Services (COMPASS): A qualitative investigation of key issues in relation to community stroke teams undertaking cognitive assessments

Ablewhite

Geraghty

Nair

et al. 2019

British Journal of Occupational Therapy

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“…In this study, we assessed cognitive function with the Montreal Cognitive Assessment (MoCA; score range: 0–30; Nasreddine et al, 2005 ). This tool has shown to be sensitive to mild cognitive deficits when applied in cognitively intact older adults (Duffin et al, 2012 ; Kenny et al, 2013 ). It includes measures of EF, language, memory, attention, orientation, calculation, and visuospatial ability.…”

Section: Methodsmentioning

confidence: 99%

Cognitive-Motor Interference during Walking in Older Adults with Probable Mild Cognitive Impairment

Klotzbier

Schott

2017

Front. Aging Neurosci.

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Although several studies have shown that dual-tasking (DT) mobility is impaired in Alzheimer's disease, studies on the effects of DT conditions in probable Mild Cognitive Impairment (pMCI) have not yielded unequivocal results. The objectives of the study were to (1) examine the effect of a concurrent task on a complex walking task in adults with cognitive impairment; and (2) determine whether the effect varied with different difficulty levels of the concurrent task. Furthermore, the study was designed to evaluate the Trail-Walking Test (TWT) as a potential detection tool for MCI. We examined DT performance in 42 young adults (mean age 23.9 ± 1.98), and 43 older adults (mean age 68.2 ± 6.42). The MoCA was used to stratify the subjects into those with and without pMCI. DT was assessed using the TWT: participants completed 5 trials each of walking along a fixed pathway, stepping on targets with increasing sequential numbers (i.e., 1-2-…-15), and increasing sequential numbers and letters (i.e., 1-A-2-B-3-…-8). Motor and cognitive DT effects (DTE) were calculated for each task. ROC curves were used to distinguish younger and healthy older adults from older adults with pMCI. The TWT showed excellent test-retest reliability across all conditions and groups (ICC : 0.83–0.97). SEM% was also low (<11%) as was the MDC95% (<30%). Within the DT conditions, the pMCI group showed significantly longer durations for all tasks regardless of the cognitive load compared to the younger and the healthy older adults. The motor DTEs were greatest for the complex condition in older adults with pMCI more so than in comparison with younger and healthy older adults. ROC analyses confirmed that only the tasks with higher cognitive load could differentiate older adults with pMCI from controls (area under the curve >0.7, p < 0.05). The TWT is a reliable DT mobility measure in people with pMCI. However, the condition with high cognitive load is more sensitive than the condition with low cognitive load in identifying pMCI. The TWT-3 thus could serve as a screening tool for early detection of individuals with pMCI. Future studies need to determine the neural correlates for cognitive-motor interference in older adults with pMCI.

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“…Inclusion criteria for the stroke patients is detailed elsewhere [18] and summarised here as: Patients must (1) be cognitively high functioning, (2) be able to give informed consent and follow experimental instructions, (3) not suffer from a visual field defect or visual neglect, and (4) have upper limb motor paresis in either their dominant or non-dominant hand.…”

Section: Methodsmentioning

confidence: 99%

An exploration of EEG features during recovery following stroke - implications for BCI-mediated neurorehabilitation therapy

Leamy

Kocijan

Domijan

et al. 2014

Journal of NeuroEngineering and Rehabilitation

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BackgroundBrain-Computer Interfaces (BCI) can potentially be used to aid in the recovery of lost motor control in a limb following stroke. BCIs are typically used by subjects with no damage to the brain therefore relatively little is known about the technical requirements for the design of a rehabilitative BCI for stroke.Methods32-channel electroencephalogram (EEG) was recorded during a finger-tapping task from 10 healthy subjects for one session and 5 stroke patients for two sessions approximately 6 months apart. An off-line BCI design based on Filter Bank Common Spatial Patterns (FBCSP) was implemented to test and compare the efficacy and accuracy of training a rehabilitative BCI with both stroke-affected and healthy data.ResultsStroke-affected EEG datasets have lower 10-fold cross validation results than healthy EEG datasets. When training a BCI with healthy EEG, average classification accuracy of stroke-affected EEG is lower than the average for healthy EEG. Classification accuracy of the late session stroke EEG is improved by training the BCI on the corresponding early stroke EEG dataset.ConclusionsThis exploratory study illustrates that stroke and the accompanying neuroplastic changes associated with the recovery process can cause significant inter-subject changes in the EEG features suitable for mapping as part of a neurofeedback therapy, even when individuals have scored largely similar with conventional behavioural measures. It appears such measures can mask this individual variability in cortical reorganization. Consequently we believe motor retraining BCI should initially be tailored to individual patients.

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Subtle memory and attentional deficits revealed in an Irish stroke patient sample using domain-specific cognitive tasks

Cited by 15 publications

References 33 publications

Cognitive Management Pathways in Stroke Services (COMPASS): A qualitative investigation of key issues in relation to community stroke teams undertaking cognitive assessments

Cognitive Management Pathways in Stroke Services (COMPASS): A qualitative investigation of key issues in relation to community stroke teams undertaking cognitive assessments

Cognitive-Motor Interference during Walking in Older Adults with Probable Mild Cognitive Impairment

An exploration of EEG features during recovery following stroke - implications for BCI-mediated neurorehabilitation therapy

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