Clinical Trial: Brain and Heart Rhythm Responses to a Breathing-Linked Sound Application (BELL-001) in Adults With Insomnia Symptoms

U.S., Oct. 14 -- ClinicalTrials.gov registry received information related to the study (NCT07872007) titled 'Brain and Heart Rhythm Responses to a Breathing-Linked Sound Application (BELL-001) in Adults With Insomnia Symptoms' on Oct. 07.

Brief Summary: The purpose of this study was to describe how brain activity and heart rhythm respond to BELL-001, a smartphone application that plays sounds linked to the user's own breathing, compared with a sham application that looks the same but does not link its sounds to breathing. Adults with self-reported insomnia symptoms were randomly assigned to BELL-001 or to the sham application. During one laboratory visit, brain activity was recorded with electroencephalography (EEG), heart activity with el...