Evaluation of a Therapeutic Mobile App for Depression

The purpose of this study is a preliminary evaluation of a gamified attention bias modification training (GAMBT) for reducing symptoms of depression and rumination. Individuals with elevated symptoms of depression will use the digital intervention over the course of 4 weeks. They will complete a brief (\~5 question) survey daily, as well as weekly assessments.

Inclusion Criteria: * able and willing to provide informed consent; * fluent in English; * normal or corrected-to-normal vision * moderate or greater depression symptoms (defined as greater than or equal to 10 on the PHQ-8); * attention bias for negative stimuli (operationalized as greater than an average of 6500 ms of dwell time on sad faces in an attention bias task); * stable psychiatric and neurological medication usage. * access to a smartphone for downloading the app and a laptop or desktop computer to complete the weekly assessments Exclusion Criteria: * recent heavy alcohol use defined as a score of 2 or higher on the PDSQ * past or present comorbidity of other serious mental illness (e.g., schizophrenia, substance use disorder, bipolar disorder, etc.) * previous experience with gamified attention bias modification app