Timothy Trull

Timothy Trull is a Curators' Distinguished Professor in the Department of Psychological Sciences at the University of Missouri. He leads the Personality and Emotion Laboratory and is actively involved in research focusing on ambulatory assessment methods and their application to understanding mental disorders.

His research interests span the phenomenology of mental disorders, particularly mood and anxiety disorders, substance use (with emphasis on alcohol and cannabis), psychometrics and clinical assessment, affective instability, emotional dysregulation, and ambulatory assessment methods. His work primarily utilizes Ecological Momentary Assessment (EMA) to capture dynamic processes in real-world settings.

Dr. Trull's research portfolio reveals a strong focus on borderline personality disorder, emotion dysregulation, and the interplay between substance use and emotional states. His work often examines how momentary affective states influence substance use behaviors and how these patterns differ across clinical populations. His publication record shows consistent contributions to understanding affective instability measurement and its clinical implications.

As a Curators' Distinguished Professor, Dr. Trull has received significant recognition for his scholarly contributions. His laboratory continues to produce influential research in the field of ambulatory assessment and its applications to understanding psychopathology, with numerous publications appearing through 2025.

Dr. Trull is actively mentoring graduate students, with a note on his profile indicating he is reviewing applications for graduate students for Fall 2025. His work bridges clinical psychology, personality assessment, and methodological innovation in psychological research, making substantial contributions to both theoretical understanding and clinical applications.