Acoustic Stimulation, Sleep, and Cognitive-Emotional Processes in Young Adults With Anxiety and Depression Symptoms

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In this study, the investigators will recruit young adults (ages 18-25 years) with elevated anxiety/depression symptoms and sleep disturbance. Participants will complete two overnights in a sleep lab. During one of the overnights, slow-wave activity will be enhanced by delivering sub-arousal auditory tones during slow-wave sleep using a headband device (Philips SmartSleep or Dreem 2). During the other overnight, tones will not be administered. Cognitive and emotional processes will be evaluated using behavioral task performance, self-report, and functional magnetic resonance imaging (fMRI). After the second overnight, participants will take the headband device home and wear it every night for approximately 2 weeks. For half of the participants, the headband will play tones every night and, for the other half, the headband will not play tones. Participants will then return for a final testing visit in which cognitive and emotional processes and anxiety/depression symptoms will be assessed using behavioral task performance and self-report.