No benefit of auditory closed-loop stimulation on memory for semantically-incongruent associations.
Neurobiol Learn Mem
; 183: 107482, 2021 09.
Article
em En
| MEDLINE
| ID: mdl-34182134
ABSTRACT
Auditory closed-loop stimulation has gained traction in recent years as a means of enhancing slow oscillatory activity and, consequently, sleep-associated memory consolidation. Previous studies on this topic have primarily focused on the consolidation of semantically-congruent associations. In this study, we investigated the effect of auditory closed-loop stimulation on the overnight retention of semantically-incongruent associations. Twelve healthy males (age M = 20.06, SD = 2.02 years) participated in two experimental conditions (simulation and sham). In the stimulation condition, clicks were delivered in phase with slow oscillation up-states, whereas in the sham condition no auditory stimuli were applied. Corroborating earlier work, stimulation (vs. sham) enhanced the slow oscillation rhythm, phase-coupled spindle activity and slow oscillation power. However, there was no benefit of stimulation on overnight memory retention. These findings suggest that closed-loop stimulation does not benefit semantically-incongruent associations.
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MEDLINE
Assunto principal:
Aprendizagem por Associação
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Estimulação Acústica
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Consolidação da Memória
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Sono de Ondas Lentas
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article