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Acceptance and commitment therapy for insomnnia

Grant number: 18/19506-5
Support type:Research Grants - Young Investigators Grants
Duration: November 01, 2019 - October 31, 2024
Field of knowledge:Humanities - Psychology - Psychological Treatment and Prevention
Principal Investigator:Renatha El Rafihi Ferreira
Grantee:Renatha El Rafihi Ferreira
Home Institution: Instituto de Psiquiatria Doutor Antonio Carlos Pacheco e Silva (IPq). Hospital das Clínicas da Faculdade de Medicina da USP (HCFMUSP). Secretaria da Saúde (São Paulo - Estado). São Paulo , SP, Brazil
Assoc. researchers: Charles M. Morin ; Francisco Lotufo Neto ; Rosa Hasan
Associated scholarship(s):20/10748-6 - Acceptance and Commitment Therapy for Sleep Problems: Literature Review, BP.IC
19/25537-3 - Acceptance and Commitment Therapy for Insomnnia, BP.JP


Insomnia is a frequent complaint and is associated with impairments in physical and psychological health. Although Cognitive-Behavioral Therapy (CBT) demonstrates effective results for insomnia, there are those who do not respond to this type of intervention or present difficulties in adherence. Acceptance and Commitment Therapy (ACT) presents itself as a potentially useful intervention for the treatment of insomnia, for which, instead of focusing on controlling the symptoms, the respective approach focuses on accepting the feelings and thoughts associated, through value-based actions. The aim of this study is to evaluate the effectiveness of ACT for chronic insomnia in adults. Participants will be 150 adults aged between 18 and 59 years, diagnosed with chronic insomnia who will be randomly assigned to the ACT, CBT and wait list (WL) groups. For both groups (ACT and CBT), the intervention will be performed in six group and weekly sessions. Assessments of sleep patterns, insomnia, depression, anxiety, psychological flexibility, acceptance of sleep and beliefs about sleep will be performed in the pre-treatment, post-treatment and six-month follow-up. After the intervention is completed, participants will respond to an inventory of compliance and satisfaction. The results will be compared using mixed ANOVA, followed by multiple comparison tests, where appropriate. For the primary and secondary outcomes, the magnitude of the effect will be calculated. The size of the effect will be calculated using the square partial eta and d of Cohen. (AU)