2 | DAMIEN LEKKAS http://damienlekkas.com/publication-type/2/ 2 Wowchemy (https://wowchemy.com)en-usTue, 10 Dec 2024 00:00:00 +0000 http://damienlekkas.com/media/icon_hu0b7a4cb9992c9ac0e91bd28ffd38dd00_9727_512x512_fill_lanczos_center_3.png 2 http://damienlekkas.com/publication-type/2/ Anhedonia in flux: Understanding the associations of emotion regulation and anxiety with anhedonia dynamics in a sample with major depressive disorder http://damienlekkas.com/publication/anhedonia-in-flux/ Tue, 10 Dec 2024 00:00:00 +0000 http://damienlekkas.com/publication/anhedonia-in-flux/ Breaking the silence: Leveraging social interaction data to identify high-risk suicide users online using network analysis and machine learning http://damienlekkas.com/publication/breaking-the-silence/ Tue, 10 Dec 2024 00:00:00 +0000 http://damienlekkas.com/publication/breaking-the-silence/ Detecting longitudinal trends between passively collected phone use and anxiety among college students http://damienlekkas.com/publication/anxiety-phone-use/ Tue, 10 Dec 2024 00:00:00 +0000 http://damienlekkas.com/publication/anxiety-phone-use/ Evaluating a mobile app’s effects on depression and anxiety in medication-treated opioid use disorder http://damienlekkas.com/publication/mobile-app-oud/ Tue, 10 Dec 2024 00:00:00 +0000 http://damienlekkas.com/publication/mobile-app-oud/ From mood to use: Using ecological momentary assessments to examine how anhedonia and depressed mood impact cannabis use in a depressed sample http://damienlekkas.com/publication/mood-to-use/ Tue, 10 Dec 2024 00:00:00 +0000 http://damienlekkas.com/publication/mood-to-use/ The role of borderline personality disorder traits in predicting longitudinal variability of major depressive symptoms among a sample of depressed adults http://damienlekkas.com/publication/bpd-depression-fluctation/ Wed, 17 Jul 2024 00:00:00 +0000 http://damienlekkas.com/publication/bpd-depression-fluctation/ Comparing transdiagnostic risk factors: Predicting emergence of significant depressive, anxiety, and substance abuse symptoms among juvenile delinquents http://damienlekkas.com/publication/transdiag-risk-juvenile/ Thu, 23 May 2024 00:00:00 +0000 http://damienlekkas.com/publication/transdiag-risk-juvenile/ The trajectories of online mental health information seeking: Modeling search behavior before and after completion of self-report screens http://damienlekkas.com/publication/trajectories-mha/ Thu, 18 Apr 2024 00:00:00 +0000 http://damienlekkas.com/publication/trajectories-mha/ Depressive symptoms as a heterogeneous and constantly evolving dynamical system: Idiographic depressive symptom networks of rapid symptom changes among persons with major depressive disorder. http://damienlekkas.com/publication/depression-dynamics/ Mon, 01 Jan 2024 00:00:00 +0000 http://damienlekkas.com/publication/depression-dynamics/ The hidden depths of suicidal discourse: Network analysis and natural language processing unmask uncensored expression http://damienlekkas.com/publication/suicide-empath/ Tue, 03 Oct 2023 00:00:00 +0000 http://damienlekkas.com/publication/suicide-empath/ Dysregulated emotion and trying substances in childhood: Insights from a large nationally representative cohort study http://damienlekkas.com/publication/child-dysreg-subuse/ Sat, 12 Aug 2023 00:00:00 +0000 http://damienlekkas.com/publication/child-dysreg-subuse/ Depression deconstructed: Wearables and passive digital phenotyping for analyzing individual symptoms http://damienlekkas.com/publication/depression-deconstructed/ Mon, 31 Jul 2023 00:00:00 +0000 http://damienlekkas.com/publication/depression-deconstructed/ Using passive sensor data to probe associations of social structure with changes in personality: A synthesis of network analysis and machine learning http://damienlekkas.com/publication/network-personality/ Wed, 30 Nov 2022 00:00:00 +0000 http://damienlekkas.com/publication/network-personality/ Digitally filling the access gap in mental health care: An investigation of the association between rurality and online engagement with validated self-report screens across the United States http://damienlekkas.com/publication/mh-rurality/ Fri, 25 Nov 2022 00:00:00 +0000 http://damienlekkas.com/publication/mh-rurality/ Predictive modeling of suicidal ideation in patients with epilepsy http://damienlekkas.com/publication/si-epilepsy/ Thu, 01 Sep 2022 00:00:00 +0000 http://damienlekkas.com/publication/si-epilepsy/ A machine learning investigation into the temporal dynamics of physical activity‐mediated emotional regulation in adolescents with anorexia nervosa and healthy controls http://damienlekkas.com/publication/emotion-reg-anorexia/ Sun, 14 Aug 2022 00:00:00 +0000 http://damienlekkas.com/publication/emotion-reg-anorexia/ Evaluating the impact of mask mandates and political party affiliation on mental health internet search behavior in the United States during the COVID-19 pandemic: Generalized additive mixed model framework http://damienlekkas.com/publication/mask-mandates/ Wed, 15 Jun 2022 00:00:00 +0000 http://damienlekkas.com/publication/mask-mandates/ Using the COVID-19 pandemic to assess the influence of news affect on online mental health-related search behavior across the United States: Integrated sentiment analysis and the circumplex model of affect http://damienlekkas.com/publication/covid-news/ Thu, 27 Jan 2022 00:00:00 +0000 http://damienlekkas.com/publication/covid-news/ Using smartphone app use and lagged-ensemble machine learning for the prediction of work fatigue and boredom http://damienlekkas.com/publication/smartphone-fatbor/ Fri, 24 Sep 2021 00:00:00 +0000 http://damienlekkas.com/publication/smartphone-fatbor/ The application of machine learning to online mindfulness intervention data: A primer and empirical example in compliance assessment http://damienlekkas.com/publication/ml-mindfulness/ Fri, 27 Aug 2021 00:00:00 +0000 http://damienlekkas.com/publication/ml-mindfulness/ Predicting acute suicidal ideation on Instagram using ensemble machine learning models http://damienlekkas.com/publication/instagram-suicide/ Fri, 02 Jul 2021 00:00:00 +0000 http://damienlekkas.com/publication/instagram-suicide/ Association of COVID19-induced anosmia and ageusia with depression and suicidal ideation http://damienlekkas.com/publication/covid-anosmia/ Thu, 27 May 2021 00:00:00 +0000 http://damienlekkas.com/publication/covid-anosmia/ Using artificial intelligence and longitudinal location data to differentiate persons who develop posttraumatic stress disorder following childhood trauma http://damienlekkas.com/publication/gps-trauma/ Sat, 01 May 2021 00:00:00 +0000 http://damienlekkas.com/publication/gps-trauma/ Deep learning paired with wearable passive sensing data predicts deterioration in anxiety disorder symptoms across 17–18 years http://damienlekkas.com/publication/deep-learning-anxiety/ Sun, 27 Dec 2020 00:00:00 +0000 http://damienlekkas.com/publication/deep-learning-anxiety/ Impact of online mental health screening tools on help-seeking, care receipt, and suicidal ideation and suicidal intent: Evidence from internet search behavior in a large U.S. cohort http://damienlekkas.com/publication/mh-screening-tools/ Mon, 09 Nov 2020 00:00:00 +0000 http://damienlekkas.com/publication/mh-screening-tools/ Flattening the mental health curve: COVID-19 stay-at-home orders are associated with alterations in mental health search behavior in the United States http://damienlekkas.com/publication/flattening-mh-curve/ Mon, 01 Jun 2020 00:00:00 +0000 http://damienlekkas.com/publication/flattening-mh-curve/