{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T20:43:41Z","timestamp":1785876221557,"version":"3.56.0"},"reference-count":73,"publisher":"JMIR Publications Inc.","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Med Internet Res"],"abstract":"Abstract<\/jats:title>\n \n Background<\/jats:title>\n The Integrated Motivational-Volitional Model posits entrapment as a central driver of suicidal ideation (SI), yet little is known about how internal (IE) vs external entrapment (EE) unfolds in real time. Prior ecological momentary assessment (EMA) studies have generally treated entrapment as unidimensional and used sampling intervals of several hours, potentially obscuring rapid risk processes.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n This study examined (1) cross-sectional and longitudinal temporal associations between IE, EE, and SI across lags of 1\u20103 prompts; (2) differences in immediacy of IE vs EE effects; and (3) whether the exact time interval (in minutes) between assessments moderates these associations.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n \n A total of 91 (62.2% female; M\n age<\/jats:sub>\n =31.6, SD 10.6) adults initiating outpatient psychotherapy (convenience sample) completed a 7-day EMA protocol with 10 daily prompts (30\u2010120 min intervals). Participants provided informed consent, and ethical approval was obtained. A total of 5414 (85% compliance) observations were analyzed using multilevel models with maximum likelihood estimation (assuming missing at random). SI (4 items) and entrapment (IE, EE; 1 item each) were rated on 5-point scales. Lagged effects (up to \u22486 h) controlled for prior SI, and time intervals (in minutes) were tested as moderators.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n SI varied primarily within persons (intraclass correlation=0.15). Cross-sectionally, both IE (est=0.16, 95% CI 0.08 to 0.24;\n P<\/jats:italic>\n <.001) and EE (est=0.19, 95% CI 0.09 to 0.27;\n P<\/jats:italic>\n <.001) were significantly associated with SI, explaining 25.3% of within-person variance (Quasi\n R<\/jats:italic>\n \u00b2). Lagged analyses revealed distinct temporal patterns. At Lag 1 (30\u2010120 min), IE predicted increases in SI (est=0.13, 95% CI 0.09 to 0.18;\n P<\/jats:italic>\n <.001), whereas EE did not (est=0.01, 95% CI \u20130.03 to 0.06;\n P<\/jats:italic>\n =.60). At lag 2 (60\u2010240 min), EE predicted SI (est=0.05, 95% CI 0.01 to 0.10;\n P<\/jats:italic>\n <.05), whereas IE was not significant. At lag 3 (90\u2010360 min), IE negatively predicted SI (est=\u20130.06, 95% CI \u20130.11 to \u20130.01;\n P<\/jats:italic>\n <.05), while EE positively predicted SI (est=0.05, 95% CI 0.00 to 0.10;\n P<\/jats:italic>\n <.05). Prior SI consistently predicted subsequent SI (est range=0.38\u20100.42;\n P<\/jats:italic>\n <.001). Time intervals did not moderate effects (\n P<\/jats:italic>\n values>.12).\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n Entrapment is a dynamic correlate of SI, with IE and EE showing distinct temporal patterns. IE has rapid, within-minute effects on SI, whereas EE shows delayed associations. This study is innovative in modeling minute-level dynamics using high-frequency EMA. Unlike prior unidimensional, lower-frequency designs, it captures ultra-short-term risk processes and clarifies temporally distinct pathways within the Integrated Motivational-Volitional Model and enhances theoretical precision regarding proximal vs distal drivers of SI. Clinically, results suggest that interventions may benefit from targeting IE in real time.<\/jats:p>\n <\/jats:sec>","DOI":"10.2196\/81095","type":"journal-article","created":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T19:44:28Z","timestamp":1785872668000},"page":"e81095-e81095","source":"Crossref","is-referenced-by-count":0,"title":["Temporal Dynamics of Internal vs External Entrapment in Suicidal Ideation in Psychotherapy Outpatients: Prospective Longitudinal Cohort Study Using Ecological Momentary 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