Figural Creative Task Sculpts the Baseline Resting-State EEG in Older Adults: A Pilot Study

E. Yu Privodnova; N. V. Volf

doi:10.1134/S0362119721020122

Figural Creative Task Sculpts the Baseline Resting-State EEG in Older Adults: A Pilot Study

Переведенное название: Решение образных креативных задач изменяет фоновую ЭЭГ покоя у пожилых людей (пилотное исследование)

E. Yu Privodnova, N. V. Volf

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

Аннотация

Включение в креативную деятельность оказывает нейропротекторный эффект в пожилом возрасте. Одним из ключевых факторов, который вносит вклад в этот эффект, является когнитивная стимуляция через креативное мышление. Лежащим в основе нейронным механизмом является вызванная предшествующей деятельностью нейропластичность, которая может проявляться в виде изменений активности мозга после завершения задания в областях, участвующих в его выполнении. Два основных вида креативности, вербальная и образная, которые соответственно опираются на зрительно-пространственные и семантические процессы, демонстрируют различные траектории возрастных изменений. Чтобы определить, какой тип креативных заданий оставляет более выраженное последействие в посттестовой электроэнцефалографической (ЭЭГ) активности мозга у пожилых людей, зарегистрировали ЭЭГ у 29 пожилых (64 ± 6 лет) ментально здоровых испытуемых до, во время и после выполнения 30 вербальных и 30 образных задач. Значения плотности источников тока (ПИТ) и последующие статистические контрасты с использованием непараметрического статистического картирования были проведены с помощью LORETA. ПИТ увеличилась от предтестового к посттестовому интервалу в ∆-γ-ритмах, наиболее выражено в париетально-окципитальной области (область интереса, ОИ). Увеличение ПИТ наблюдалось также при выполнении образной (но не вербальной) задачи. По сравнению с образной задачей было выявлено пространственно недифференцированное снижение ПИТ в посттестовой активности, что свидетельствует о сохранении паттерна, возникшего во время образного задания, в посттестовой ЭЭГ в менее выраженной форме. Кроме того, были выявлены множественные положительные корреляции между ЭЭГ-активностью во время выполнения образной задачи и посттестовым интервалом в пределах ОИ. Результаты позволяют предполагать, что образная креативная задача оставляет более выраженное последействие, чем вербальная, и, таким образом, является перспективной для дальнейшего изучения в качестве когнитивного тренинга для пожилых людей.

Переведенное название	Решение образных креативных задач изменяет фоновую ЭЭГ покоя у пожилых людей (пилотное исследование)
Язык оригинала	английский
Номер статьи	3
Страницы (с-по)	498-505
Число страниц	8
Журнал	Human Physiology
Том	47
Номер выпуска	5
DOI	https://doi.org/10.1134/S0362119721020122
Состояние	Опубликовано - сен 2021

Предметные области OECD FOS+WOS

3.02 КЛИНИЧЕСКАЯ МЕДИЦИНА
1.06 БИОЛОГИЧЕСКИЕ НАУКИ

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10.1134/S0362119721020122

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title = "Figural Creative Task Sculpts the Baseline Resting-State EEG in Older Adults: A Pilot Study",

abstract = "Creative activity has a neuroprotective effect in later life. One of the key factors that contribute to this inspiring effect is cognitive stimulation via creative ideation. The underlying neuronal mechanism is task-induced neuroplasticity, which may manifest itself as post-task changes in the brain activity in the areas involved in task execution. Two main types of creativity, verbal and figural, relying on visual–spatial and semantic processes, respectively, show different trajectories of age-related changes. In order to identify, which type of creative tasks leaves more pronounced post-task traces in the resting-state electroencephalographic (EEG) activity in older adults, we recorded EEG in 29 mentally healthy elderly (64 ± 6 years) subjects before, during, and after the performance of 30 verbal and 30 figural tasks. Current source density (CSD) estimates and subsequent statistical contrasts using statistical nonparametric mapping were calculated with LORETA. The CSD increased from the pre-task to post-task interval in the Δ–γ rhythms, most prominently in parietal–occipital areas (regions of interest, ROIs). The CSD increase was also induced during figural (but not verbal) task performance. In comparison with figural tasks, topographically undifferentiated CSD decrease was identified in post-task activity suggesting preservation of the pattern originated during figural task performance in the post-task EEG in a less pronounced form. Additionally, multiple positive correlations between EEG activity during figural task performance and the post-task interval within ROIs were found. The results indicate that a figural creative task leaves more pronounced post-task traces than a verbal task, which suggests that figural tasks are promising for further study as cognitive training for older adults.",

keywords = "aging, divergent thinking, EEG, figural creativity, post-task traces",

author = "Privodnova, {E. Yu} and Volf, {N. V.}",

note = "Funding Information: The study was supported by budgetary funding for basic scientific research (theme No. АААА-А21-121011990039-2, EEG recording), the Russian Foundation for Basic Research and the Government of the Novosibirsk region (project no. 19-415-543 009, analysis of EEG data, writing a draft). Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Inc.",

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doi = "10.1134/S0362119721020122",

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Figural Creative Task Sculpts the Baseline Resting-State EEG in Older Adults: A Pilot Study. / Privodnova, E. Yu ; Volf, N. V.

В: Human Physiology, Том 47, № 5, 3, 09.2021, стр. 498-505.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

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