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Effects of Mnemonic Strategy Training on Brain Activity and Cognitive Functioning of Left-Hemisphere Ischemic Stroke Patients
Joint Authors
Miotto, Eliane C.
Conforto, Adriana Bastos
Batista, Alana X.
Bazán, Paulo R.
Martin, Maria da Graça M.
Simon, Sharon. S.
Hampstead, Benjamin
Figueiredo, Eberval Gadelha
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-09
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Memory dysfunction is one of the main cognitive impairments caused by stroke, especially associative memory.
Therefore, cognitive training, such as face-name mnemonic strategy training, could be an important intervention for this group of patients.
The goal of this study was to evaluate the behavioral effects of face-name mnemonic strategy training, along with the neural substrate behind these effects, in the left frontoparietal lobe stroke patients.
Volunteers underwent 2 sessions of functional magnetic resonance imaging (fMRI) during face-name association task: one prior and the other after the cognitive training.
The fMRI followed a block design task with three active conditions: trained face-name pairs, untrained face-name pairs, and a couple of repeated face-name pairs.
Prior to each fMRI session, volunteers underwent neuropsychological assessment.
Training resulted in better performance on delayed memory scores of HVLT-R, and on recognition on a generalization strategy task, as well as better performance in the fMRI task.
Also, trained face-name pairs presented higher activation after training in default-mode network regions, such as the posterior cingulate cortex, precuneus, and angular gyrus, as well as in lateral occipital and temporal regions.
Similarly, untrained face-name pairs also showed a nonspecific training effect in the right superior parietal cortex, right supramarginal gyrus, anterior intraparietal sulcus, and lateral occipital cortex.
A correlation between brain activation and task performance was also found in the angular gyrus, superior parietal cortex, anterior intraparietal sulcus, and lateral occipital cortex.
In conclusion, these results suggest that face-name mnemonic strategy training has the potential to improve memory performance and to foster brain activation changes, by the recruitment of contralesional areas from default-mode, frontoparietal, and dorsal attention networks as a possible compensation mechanism.
American Psychological Association (APA)
Batista, Alana X.& Bazán, Paulo R.& Conforto, Adriana Bastos& Martin, Maria da Graça M.& Simon, Sharon. S.& Hampstead, Benjamin…[et al.]. 2019. Effects of Mnemonic Strategy Training on Brain Activity and Cognitive Functioning of Left-Hemisphere Ischemic Stroke Patients. Neural Plasticity،Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1201204
Modern Language Association (MLA)
Batista, Alana X.…[et al.]. Effects of Mnemonic Strategy Training on Brain Activity and Cognitive Functioning of Left-Hemisphere Ischemic Stroke Patients. Neural Plasticity No. 2019 (2019), pp.1-16.
https://search.emarefa.net/detail/BIM-1201204
American Medical Association (AMA)
Batista, Alana X.& Bazán, Paulo R.& Conforto, Adriana Bastos& Martin, Maria da Graça M.& Simon, Sharon. S.& Hampstead, Benjamin…[et al.]. Effects of Mnemonic Strategy Training on Brain Activity and Cognitive Functioning of Left-Hemisphere Ischemic Stroke Patients. Neural Plasticity. 2019. Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1201204
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201204