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Article Dans Une Revue Experimental Gerontology Année : 2024

Impact of repetitive home-based galvanic vestibular stimulation on cognitive skills in healthy older adults

Résumé

The human vestibular system is adversely affected by the aging process. Recent evidence indicates that vestibular information and cognitive functions are related, suggesting that age-related vestibular loss may contribute to cognitive impairment. In this study, we aimed to investigate the effects of repetitive, home-based galvanic vestibular stimulation (GVS) on cognitive functions in healthy older adults. Twenty-one participants (age = 64.66 ± 2.97 years, 12 females) were randomly allocated to either a home-based GVS or an active control group. The GVS intervention lasted 20 min per session, five times a week, for two weeks (10 sessions). Cognitive functions were assessed before and after the intervention using the Stroop Test, Trail Making Test A&B, and Dual-Task (digit recall and paper-pencil tracking test). Our findings revealed a significant group-by-time interaction effect for the tracking accuracy (F(1,18) = 7.713, p = 0.012, η p2 = 0.30), with only the home-based GVS group showing significant improvement (t = −2.544, p = 0.029). The proposed home-based GVS protocol offers a promising non-pharmacological avenue for enhancing visuospatial ability in healthy older adults. Further research is needed to investigate the effects of different GVS protocols on various cognitive functions, particularly in older individuals with different health conditions.
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hal-04628381 , version 1 (28-06-2024)

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Evrim Gökçe, Emma Milot, Antoine Langeard, Gaëlle Quarck. Impact of repetitive home-based galvanic vestibular stimulation on cognitive skills in healthy older adults. Experimental Gerontology, 2024, 194, pp.112504. ⟨10.1016/j.exger.2024.112504⟩. ⟨hal-04628381⟩
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