{"doi":"10.2196/19476","title":"A Smartphone App to Monitor Mood Symptoms in Bipolar Disorder: Development and Usability Study","abstract":"BACKGROUND: There is considerable scientific interest in finding new and innovative ways to capture rapid fluctuations in functioning within individuals with bipolar disorder (BD), a severe, recurrent mental disorder associated with frequent shifts in symptoms and functioning. The use of smartphones can provide valid and real-world tools for use in measurement-based care and could be used to inform more personalized treatment options for this group, which can improve standard of care. OBJECTIVE: We examined the feasibility and usability of a smartphone to capture daily fluctuations in mood within BD and to relate daily self-rated mood to smartphone use behaviors indicative of psychomotor activity or symptoms of the illness. METHODS: Participants were 26 individuals with BD and 12 healthy control individuals who were recruited from the Prechter Longitudinal Study of BD. All were given a smartphone with a custom-built app and prompted twice a day to complete questions of mood for 28 days. The app automatically and unobtrusively collected phone usage data. A poststudy satisfaction survey was also completed. RESULTS: Our sample showed a very high adherence rate to the daily momentary assessments (91% of the 58 prompts completed). Multivariate mixed effect models showed that an increase in rapid thoughts over time was associated with a decrease in outgoing text messages (β=-.02; P=.04), and an increase in impulsivity self-ratings was related to a decrease in total call duration (β=-.29; P=.02). Participants generally reported positive experiences using the smartphone and completing daily prompts. CONCLUSIONS: Use of mobile technology shows promise as a way to collect important clinical information that can be used to inform treatment decision making and monitor outcomes in a manner that is not overly burdensome to the patient or providers, highlighting its potential use in measurement-based care.","journal":"JMIR Mental Health","year":2020,"id":68457,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":22,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9563,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":362427,"name":"Pallavi Babu","orcid":"0000-0001-7630-6688","position":1,"is_corresponding":false},{"id":362428,"name":"Rebecca Easter","orcid":"0000-0003-4233-0342","position":2,"is_corresponding":false},{"id":362429,"name":"Erika F.H. Saunders","orcid":"0000-0001-7222-0828","position":3,"is_corresponding":false},{"id":362430,"name":"Jin Seok Lee","orcid":"0000-0003-4120-8708","position":4,"is_corresponding":false},{"id":232381,"name":"Predrag Klasnja","orcid":"0000-0002-4570-703X","position":5,"is_corresponding":false},{"id":362431,"name":"Lilia Verchinina","orcid":"0000-0001-9221-6076","position":6,"is_corresponding":false},{"id":362432,"name":"Valerie Micol","orcid":"0000-0002-0161-9425","position":7,"is_corresponding":false},{"id":362433,"name":"Brent Doil","orcid":"0000-0002-8862-0647","position":8,"is_corresponding":false},{"id":362434,"name":"Melvin G. McInnis","orcid":"0000-0002-0375-6247","position":9,"is_corresponding":false},{"id":11397,"name":"Amy M. Kilbourne","orcid":"0000-0001-5815-6401","position":10,"is_corresponding":false},{"id":362426,"name":"Kelly A. Ryan","orcid":"0000-0001-5032-3949","position":0,"is_corresponding":true}],"reference_count":31,"raw_metadata":null,"created_at":"2026-07-18T21:40:52.680475Z","pmid":"32960185","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}