Clinical nutrition ESPEN · 2025
The effect of transcranial direct current stimulation and nutritional counseling therapy on attentional bias to food cues: A randomized clinical trial.
СтатьяРандомизированное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Elkfury Jessica Lorenzzi, Antunes Luciana C, Weydmann Gibson, Menegassi Lizia Nardi, Medeiros Liciane Fernandes, Cardinal Tiago Madeira, Tocchetto Betina Franceschini, Torres Iraci L S, Fregni Felipe, Bizarro Lisiane, Caumo Wolnei
Аннотация
BACKGROUND & AIMS: This study investigated the effects of transcranial direct current stimulation (tDCS) and nutritional counseling therapy (NCT) on attentional bias (AB) in binge eating disorder.
METHODS: This study was designed as a pilot randomized, factorial, blind, parallel-controlled clinical trial. Forty women were allocated to one of four groups: active tDCS (a-tDCS), a-tDCS + NCT, s-tDCS (sham tDCS) + NCT, NCT. The 28 home-based tDCS sessions were applied to the DLPFC (anode/right and cathode/left). The outcome was the delta values (pre- and post-treatment AB scores). Each AB score was calculated based on the stimulus onset asynchrony (SOA) at which stimuli were presented (100, 500, and 2000 ms).
RESULTS: Mixed analyses of variance revealed a significant interaction between treatment and SOA (p = 0.035). The a-tDCS with NCT group showed a decrease in AB at an SOA of 500 ms. This decrease significantly differed from the increase observed in the s-tDCS with NCT group for the same SOA (p = 0.027). The a-tDCS with NCT group showed an increase in AB at an SOA of 2000 ms, which differed significantly from the decrease observed at the same SOA in the a-tDCS group (p = 0.032).
CONCLUSIONS: The combined therapy (a-tDCS with NCT) decreased AB at the pre-conscious orientation of attention and increased it when conscious orientation was possible.
TRIAL REGISTRATION: ClinicalTrials.gov: NCT04226794. Registered on July 2, 2019.
METHODS: This study was designed as a pilot randomized, factorial, blind, parallel-controlled clinical trial. Forty women were allocated to one of four groups: active tDCS (a-tDCS), a-tDCS + NCT, s-tDCS (sham tDCS) + NCT, NCT. The 28 home-based tDCS sessions were applied to the DLPFC (anode/right and cathode/left). The outcome was the delta values (pre- and post-treatment AB scores). Each AB score was calculated based on the stimulus onset asynchrony (SOA) at which stimuli were presented (100, 500, and 2000 ms).
RESULTS: Mixed analyses of variance revealed a significant interaction between treatment and SOA (p = 0.035). The a-tDCS with NCT group showed a decrease in AB at an SOA of 500 ms. This decrease significantly differed from the increase observed in the s-tDCS with NCT group for the same SOA (p = 0.027). The a-tDCS with NCT group showed an increase in AB at an SOA of 2000 ms, which differed significantly from the decrease observed at the same SOA in the a-tDCS group (p = 0.032).
CONCLUSIONS: The combined therapy (a-tDCS with NCT) decreased AB at the pre-conscious orientation of attention and increased it when conscious orientation was possible.
TRIAL REGISTRATION: ClinicalTrials.gov: NCT04226794. Registered on July 2, 2019.