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Effectiveness of Electroencephalography Neurofeedback for Improving Working Memory and Episodic Memory in the Elderly: A Meta-Analysis.
Lin, Yu-Ru; Hsu, Tien-Wei; Hsu, Che-Wei; Chen, Peng-Yu; Tseng, Ping-Tao; Liang, Chih-Sung.
Affiliation
  • Lin YR; Graduate Institute of Psychology, College of Humanities and Social Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
  • Hsu TW; Department of Psychiatry, E-DA Dachang Hospital, I-Shou University, Kaohsiung 807, Taiwan.
  • Hsu CW; Department of Psychiatry, E-DA Hospital, I-Shou University, Kaohsiung 807, Taiwan.
  • Chen PY; Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
  • Tseng PT; Department of Psychology, Kaohsiung Kai-Suan Psychiatric Hospital, Kaohsiung 807, Taiwan.
  • Liang CS; Department of Psychology, Pingtung Veterans Hospital, Pingtung 900, Taiwan.
Medicina (Kaunas) ; 60(3)2024 Feb 22.
Article in En | MEDLINE | ID: mdl-38541096
ABSTRACT
Background and

Objective:

Existing evidence indicates the potential benefits of electroencephalography neurofeedback (NFB) training for cognitive function. This study aims to comprehensively review all available evidence investigating the effectiveness of NFB on working memory (WM) and episodic memory (EM) in the elderly population. Material and

Methods:

A systematic search was conducted across five databases to identify clinical trials examining the impact of NFB on memory function in healthy elderly individuals or those with mild cognitive impairment (MCI). The co-primary outcomes focused on changes in WM and EM. Data synthesis was performed using a random-effects meta-analysis.

Results:

Fourteen clinical trials (n = 284) were included in the analysis. The findings revealed that NFB was associated with improved WM (k = 11, reported as Hedges' g = 0.665, 95% confidence [CI] = 0.473 to 0.858, p < 0.001) and EM (k = 12, 0.595, 0.333 to 0.856, p < 0.001) in the elderly, with moderate effect sizes. Subgroup analyses demonstrated that NFB had a positive impact on both WM and EM, not only in the healthy population (WM k = 7, 0.495, 0.213 to 0.778, p = 0.001; EM k = 6, 0.729, 0.483 to 0.976, p < 0.001) but also in those with MCI (WM k = 6, 0.812, 0.549 to 1.074, p < 0.001; EM k = 6, 0.503, 0.088 to 0.919, p = 0.018). Additionally, sufficient training time (totaling more than 300 min) was associated with a significant improvement in WM (k = 6, 0.743, 0.510 to 0.976, p < 0.001) and EM (k = 7, 0.516, 0.156 to 0.876, p = 0.005); however, such benefits were not observed in groups with inadequate training time.

Conclusions:

The results suggest that NFB is associated with enhancement of both WM and EM in both healthy and MCI elderly individuals, particularly when adequate training time (exceeding 300 min) is provided. These findings underscore the potential of NFB in dementia prevention or rehabilitation.
Subject(s)
Key words

Full text: 1 Database: MEDLINE Main subject: Neurofeedback / Memory, Episodic / Cognitive Dysfunction / Memory, Short-Term Language: En Journal: Medicina (Kaunas) Year: 2024 Type: Article Affiliation country: Taiwan

Full text: 1 Database: MEDLINE Main subject: Neurofeedback / Memory, Episodic / Cognitive Dysfunction / Memory, Short-Term Language: En Journal: Medicina (Kaunas) Year: 2024 Type: Article Affiliation country: Taiwan