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The role of positive and negative placebo in the objective nap characteristics of good sleepersстатья Тезисы
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 декабря 2016 г.
- Авторы: Rasskazova E.I., Zavalko I.M.
- Журнал: Journal of Sleep Research
- Том: 23
- Номер: Supplement 1
- Год издания: 2014
- Издательство: Blackwell Publishing Inc.
- Местоположение издательства: United Kingdom
- Первая страница: 217
- Последняя страница: 217
- Аннотация: Objectives. While the role of conscious intention in sleep changes (Morin, 1993, Espie et al., 2006) is well recognized just few studies focused on the contribution of suggestion-based beliefs about future sleep in it quality. Methods. 25 good sleepers (16 females, 18-29 years old) visited laboratory three times at the afternoon weekend with a 1-week interval. Each time they participated in a 1-hour polysomnographic recording randomly assigned to the three different instructions sequence: neutral, positive and negative placebo. Each visit participants have read a brief description of the "Cerebrophone" as an effective insomnia treatment and were told that this experiment aims to prove the effectiveness of this method in changing good sleepers' naps. Under positive placebo condition they were told that an inaudible music based on sleeping human brain waves is presented; under negative placebo conditions - active human brain waves. There was no real sound during the experiment. Results. Comparing to the neutral instruction positive placebo paradoxically led to sleep fragmentation (WASO, number of awakes) while negative placebo was related only to the shorter longest sleep episode. Participants' belief in the placebo affects sleep quality: confident participants had lower delta sleep latency and longer delta sleep under neutral and positive conditions; lower WASO and number of awakenings in neutral and negative conditions. Conclusions. Negative and positive placebo have different impact on the nap structure depending on the belief in the placebo effectiveness.
- Добавил в систему: Рассказова Елена Игоревна