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Effects of computerized cognitive training on functional brain networks in patients with vascular cognitive impairment and no dementia
Li QG, Xing Y, Zhu ZD, Fei XL, Tang Y, Lu J.. CNS neuroscience & therapeutics, 2024-06-01
Topic: Risk, prevention and care in population studies
Aims Previous neuroimaging studies of vascular cognitive impairment, no dementia (VCIND), have reported functional alterations, but far less is known about the effects of cognitive training on functional connectivity (FC) of intrinsic connectivity networks (ICNs) and how they relate to intervention-related cognitive improvement. This study provides comprehensive research on the changes in intra- and inter-brain functional networks in patients with VCIND who received computerized cognitive training, with a focus on the underlying mechanisms and potential therapeutic strategies. Methods We prospectively collected 60 patients with VCIND who were randomly divided into the training group (N = 30) receiving computerized cognitive training and the control group (N = 30) receiving fixed cognitive training. Functional MRI scans and cognitive assessments were performed at baseline, at the 7-week training, and at the 6-month follow-up. Utilizing templates for ICNs, the study employed a linear mixed model to compare intra- and inter-network FC changes between the two groups. Pearson correlation was applied to calculate the relationship between FC and cognitive function. Results We found significantly decreased intra-network FC within the default mode network (DMN) following computerized cognitive training at Month 6 (p = 0.034), suggesting a potential loss of functional specialization. Computerized training led to increased functional coupling between the DMN and sensorimotor network (SMN) (p = 0.01) and between the language network (LN) and executive control network (ECN) at Month 6 (p < 0.001), indicating compensatory network adaptations in patients with VCIND. Notably, the intra-LN exhibited enhanced functional specialization after computerized cognitive training (p = 0.049), with significant FC increases among LN regions, which correlated with improvements in neuropsychological measures (p < 0.05), emphasizing the targeted impact of computerized cognitive training on language abilities. Conclusions This study provides insights into neuroplasticity and adaptive changes resulting from cognitive training in patients with VCIND, with implications for potential therapeutic strategies.
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APA 7th
Li, Q. G., Xing, Y., Zhu, Z. D., Fei, X. L., Tang, Y., & Lu, J. (2024). Effects of computerized cognitive training on functional brain networks in patients with vascular cognitive impairment and no dementia. CNS neuroscience & therapeutics. https://doi.org/10.1111/cns.14779
Vancouver
Li QG, Xing Y, Zhu ZD, Fei XL, Tang Y, Lu J. Effects of computerized cognitive training on functional brain networks in patients with vascular cognitive impairment and no dementia. CNS neuroscience & therapeutics. 2024. doi:10.1111/cns.14779. PMID: 38828650.
BibTeX
@article{li2024-38828650,
author = {Li, Q. G. and Xing, Y. and Zhu, Z. D. and Fei, X. L. and Tang, Y. and Lu, J.},
title = {{Effects of computerized cognitive training on functional brain networks in patients with vascular cognitive impairment and no dementia}},
journal = {CNS neuroscience \& therapeutics},
year = {2024},
doi = {10.1111/cns.14779},
pmid = {38828650},
url = {https://doi.org/10.1111/cns.14779}
}
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Key findings
- Results We found significantly decreased intra-network FC within the default mode network (DMN) following computerized cognitive training at Month 6 (p = 0.034), suggesting a potential loss of functional specialization.
- Notably, the intra-LN exhibited enhanced functional specialization after computerized cognitive training (p = 0.049), with significant FC increases among LN regions, which correlated with improvements in neuropsychological measures (p < 0.05), emphasizing the targeted impact of computerized cognitive training on language abilities.
Study details
- Participants30
- Evidence strengthLow
How this study scored 72/100
Published in a peer-reviewed journal, and it is a randomised controlled trial. Scored zero for effect reported because the record does not state it. We have no data on journal's citation record, times cited, citations per year, impact for its field and year, cited by studies here, still being cited, senior author's track record, institution's track record and multi-centre collaboration, so those were left out: it earned 42 of the 58 points we could judge it on, which is 72 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (CNS neuroscience & therapeutics) |
| Journal's citation record | — / 4 | No journal record from OpenAlex — left out of this score |
| Study design | 11 / 12 | A randomised controlled trial (from PubMed type “Randomized Controlled Trial”) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 4 / 5 | 2024 — within 3 year(s) of the newest study here |
| Sample size | 1 / 4 | 30 participants |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 3 / 3 | Studied in people (participant count stated) |
| Randomised / blinded | 1 / 2 | Randomised (as stated in the record) |
| Times cited | — / 7 | No citation count (not found in OpenAlex) — left out of this score |
| Citations per year | — / 5 | No citation count or no year — left out of this score |
| Impact for its field and year | — / 6 | No field-weighted citation impact (OpenAlex has none yet) — left out of this score |
| Cited by studies here | — / 6 | Not yet checked against this library's citation graph — left out of this score |
| Still being cited | — / 4 | No yearly citation counts — left out of this score |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multi-centre collaboration | — / 3 | Institutions not listed — left out of this score |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 38828650) |
| Free to read | 2 / 2 | Free to read |
| Points | 42 / 58 | Scored on 11 of 20 parts. We have no data for the rest, so they are left out: 42 of the 58 points we could judge it on is 72 out of 100. |
| Total | 72 / 100 | — |
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