Dimitra Lekkas

Affiliations

Adelaide Dental School, University of Adelaide, Adelaide, South Australia, Australia.

Publications (28)

Deep learning paired with wearable passive sensing data predicts deterioration in anxiety disorder symptoms across 17-18 years.

Journal of affective disorders

Avec: Nicholas C Jacobson , Damien Lekkas , Raphael Huang , Natalie Thomas

From mood to use: Using ecological momentary assessments to examine how anhedonia and depressed mood impact cannabis use in a depressed sample.

Psychiatry research

Avec: Amanda C Collins , Damien Lekkas , Cara A Struble , Brianna M Trudeau , Abi D Jewett , Tess Z Griffin , Matthew D Nemesure , George D Price , Michael V Heinz , Subigya Nepal , Arvind Pillai , Daniel M Mackin , Andrew T Campbell , Alan J Budney , Nicholas C Jacobson

Comparing Transdiagnostic Risk Factors: Predicting Emergence of Significant Depressive, Anxiety, and Substance Abuse Symptoms Among Juvenile Delinquents.

Child psychiatry and human development

Avec: Robert J Klein , Damien Lekkas , Nhi D Nguyen , Nicholas C Jacobson

Virtual Multiple Mini Interviews: Implementation and evaluation for undergraduate medical, dental, and oral health degrees.

Medical teacher

Avec: Jaime C Auton , Daniel Sturman , Dimitra Lekkas , Deborah Turnbull , Jennifer Gray , Ben J Canny , Alexia Peña

The circadian clock control of adipose tissue physiology and metabolism.

Autonomic neuroscience : basic & clinical

Avec: Damien Lekkas , Georgios K Paschos

Dysregulated Emotion and Trying Substances in Childhood: Insights from a Large Nationally Representative Cohort Study.

Substance use & misuse

Avec: Robert J Klein , Joseph A Gyorda , Damien Lekkas , Nicholas C Jacobson

Depression deconstructed: Wearables and passive digital phenotyping for analyzing individual symptoms.

Behaviour research and therapy

Avec: Damien Lekkas , Joseph A Gyorda , George D Price , Nicholas C Jacobson

The Trajectories of Online Mental Health Information Seeking: Modeling Search Behavior Before and After Completion of Self-report Screens.

Computers in human behavior

Avec: Damien Lekkas , Elad Yom-Tov , Michael V Heinz , Joseph A Gyorda , Theresa Nguyen , Paul J Barr , Nicholas C Jacobson

Using artificial intelligence and longitudinal location data to differentiate persons who develop posttraumatic stress disorder following childhood trauma.

Scientific reports

Avec: Damien Lekkas , Nicholas C Jacobson

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.

Journal of medical Internet research

Avec: Damien Lekkas , Joseph A Gyorda , George D Price , Zoe Wortzman , Nicholas C Jacobson

Depressive symptoms as a heterogeneous and constantly evolving dynamical system: Idiographic depressive symptom networks of rapid symptom changes among persons with major depressive disorder.

Journal of psychopathology and clinical science

Avec: Matthew D Nemesure , Amanda C Collins , George D Price , Tess Z Griffin , Arvind Pillai , Subigya Nepal , Michael V Heinz , Damien Lekkas , Andrew T Campbell , Nicholas C Jacobson

Predictive modeling of suicidal ideation in patients with epilepsy.

Epilepsia

Avec: Matthew D Nemesure , Nicholas Streltzov , Lindsay M Schommer , Damien Lekkas , Nicholas C Jacobson , Krzysztof A Bujarski

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.

Journal of medical Internet research

Avec: Joseph A Gyorda , Damien Lekkas , George Price , Nicholas C Jacobson

Comparative evaluation of RNA-Seq library preparation methods for strand-specificity and low input.

Scientific reports

Avec: Dimitra Sarantopoulou , Soon Yew Tang , Emanuela Ricciotti , Nicholas F Lahens , Damien Lekkas , Jonathan Schug , Xiaofeng S Guo , Georgios K Paschos , Garret A FitzGerald , Allan I Pack , Gregory R Grant

Using Smartphone App Use and Lagged-Ensemble Machine Learning for the Prediction of Work Fatigue and Boredom.

Computers in human behavior

Avec: Damien Lekkas , George D Price , Nicholas C Jacobson

Predicting acute suicidal ideation on Instagram using ensemble machine learning models.

Internet interventions

Avec: Damien Lekkas , Robert J Klein , Nicholas C Jacobson

A machine learning investigation into the temporal dynamics of physical activity-mediated emotional regulation in adolescents with anorexia nervosa and healthy controls.

European eating disorders review : the journal of the Eating Disorders Association

Avec: Damien Lekkas , Joseph A Gyorda , Nicholas C Jacobson

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.

Journal of psychiatric research

Avec: Elad Yom-Tov , Damien Lekkas , Michael V Heinz , Theresa Nguyen , Paul J Barr , Nicholas C Jacobson

Using passive sensor data to probe associations of social structure with changes in personality: A synthesis of network analysis and machine learning.

PloS one

Avec: Damien Lekkas , Joseph A Gyorda , Erika L Moen , Nicholas C Jacobson

Current arrangements for training dentists in Australia on primary care dentistry.

Journal of dentistry

Avec: Samantha J Byrne , Dimitra Lekkas , Delyse Leadbeatter

Flattening the Mental Health Curve: COVID-19 Stay-at-Home Orders Are Associated With Alterations in Mental Health Search Behavior in the United States.

JMIR mental health

Avec: Nicholas C Jacobson , Damien Lekkas , George Price , Michael V Heinz , Minkeun Song , A James O'Malley , Paul J Barr

Shipping routes through core habitat of endangered sperm whales along the Hellenic Trench, Greece: Can we reduce collision risks?

PloS one

Avec: Alexandros Frantzis , Russell Leaper , Paraskevi Alexiadou , Aristides Prospathopoulos , Dimitrios Lekkas

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.

Journal of psychiatric research

Avec: Nicholas C Jacobson , Elad Yom-Tov , Damien Lekkas , Michael Heinz , Lili Liu , Paul J Barr

Association of COVID19-induced anosmia and ageusia with depression and suicidal ideation.

Journal of affective disorders reports

Avec: Elad Yom-Tov , Damien Lekkas , Nicholas C Jacobson

The role of borderline personality disorder traits in predicting longitudinal variability of major depressive symptoms among a sample of depressed adults.

Journal of affective disorders

Avec: Emily A Kline , Damien Lekkas , Anastasia Bryan , Matthew D Nemesure , Tess Z Griffin , Amanda C Collins , George D Price , Michael V Heinz , Subigya Nepal , Arvind Pillai , Andrew T Campbell , Nicholas C Jacobson

Breaking the silence: leveraging social interaction data to identify high-risk suicide users online using network analysis and machine learning.

Scientific reports

Avec: Damien Lekkas , Nicholas C Jacobson

MoodCapture: Depression Detection Using In-the-Wild Smartphone Images.

Proceedings of the SIGCHI conference on human factors in computing systems. CHI Conference

Avec: Subigya Nepal , Arvind Pillai , Weichen Wang , Tess Griffin , Amanda C Collins , Michael Heinz , Damien Lekkas , Shayan Mirjafari , Matthew Nemesure , George Price , Nicholas C Jacobson , Andrew T Campbell

Evaluating a mobile app's effects on depression and anxiety in medication-treated opioid use disorder.

Npj mental health research

Avec: Michael V Heinz , Damien Lekkas , Veronica Abreu , Camilla Lee , Lisa A Marsch , Nicholas C Jacobson

Réseau de co-auteurs

Damien Lekkas 25 collaborations

Nicholas C Jacobson 23 collaborations

Michael V Heinz 7 collaborations

Joseph A Gyorda 7 collaborations

George D Price 6 collaborations

Amanda C Collins 4 collaborations

Matthew D Nemesure 4 collaborations

Subigya Nepal 4 collaborations

Arvind Pillai 4 collaborations

Andrew T Campbell 4 collaborations

Elad Yom-Tov 4 collaborations

Paul J Barr 4 collaborations

Tess Z Griffin 3 collaborations

Robert J Klein 3 collaborations

George Price 3 collaborations

Georgios K Paschos 2 collaborations

Theresa Nguyen 2 collaborations

Michael Heinz 2 collaborations

Raphael Huang 1 collaboration

Natalie Thomas 1 collaboration

Cara A Struble 1 collaboration

Brianna M Trudeau 1 collaboration

Abi D Jewett 1 collaboration

Daniel M Mackin 1 collaboration

Alan J Budney 1 collaboration

Nhi D Nguyen 1 collaboration

Jaime C Auton 1 collaboration

Daniel Sturman 1 collaboration

Deborah Turnbull 1 collaboration

Jennifer Gray 1 collaboration

Ben J Canny 1 collaboration

Alexia Peña 1 collaboration

Zoe Wortzman 1 collaboration

Nicholas Streltzov 1 collaboration

Lindsay M Schommer 1 collaboration

Krzysztof A Bujarski 1 collaboration

Dimitra Sarantopoulou 1 collaboration

Soon Yew Tang 1 collaboration

Emanuela Ricciotti 1 collaboration

Nicholas F Lahens 1 collaboration

Jonathan Schug 1 collaboration

Xiaofeng S Guo 1 collaboration

Garret A FitzGerald 1 collaboration

Allan I Pack 1 collaboration

Gregory R Grant 1 collaboration

Erika L Moen 1 collaboration

Samantha J Byrne 1 collaboration

Delyse Leadbeatter 1 collaboration

Minkeun Song 1 collaboration

A James O'Malley 1 collaboration

Alexandros Frantzis 1 collaboration

Russell Leaper 1 collaboration

Paraskevi Alexiadou 1 collaboration

Aristides Prospathopoulos 1 collaboration

Dimitrios Lekkas 1 collaboration

Lili Liu 1 collaboration

Emily A Kline 1 collaboration

Anastasia Bryan 1 collaboration

Weichen Wang 1 collaboration

Tess Griffin 1 collaboration

Shayan Mirjafari 1 collaboration

Matthew Nemesure 1 collaboration

Veronica Abreu 1 collaboration

Camilla Lee 1 collaboration

Lisa A Marsch 1 collaboration