Skip to Main Content

Affiliated Projects

Early Childhood Mobile Intervention Project

The Early Childhood Mobile Interventions Project follows families with young children in everyday life using smartphones and wearable devices. We are developing mobile applications for ongoing monitoring of multimodal data streams and using machine learning to automatically and passively detect and intervene upon family processes in real time and real life. Our goal is to build and systematically evaluate a Just-in-Time Adaptive Intervention (JITAI) designed to increase access to health care and improve child mental health.

Couple Mobile Sensing Project

The Couple Mobile Sensing Project examines daily functioning of young adult romantic couples via smartphones and wearable devices. We seek to how understand how small-scale everyday relationship processes (e.g., feelings of annoyance or closeness between dating partners) relate to multimodal assessments of functioning in day-to-day life (e.g., vocal pitch and tone, word usage, electrodermal activity, heart rate, physical activity). Moreover, we seek to understand how everyday, microlevel processes in young adult dating couples relate to macrolevel variables, such as family-of-origin and dating aggression. We are also developing and validating machine learning algorithms designed to detect and even predict stages of conflict escalation in couples in real life.

University of Southern California Family Studies Project

TIES Lab regulatory collaborates with the Family Studies Project, which conducts research on risk and resilience in adolescents and young adults. We investigate the role of close relationships — within the family, with friends, and with dating partners — as sources of stress, as well as protection. Studies investigate the impact of risky family environments, particularly those associated with family aggression. With longitudinal data from early adolescence through young adulthood, we study how interaction patterns are transmitted from one generation to the next. Our ultimate goal is to pinpoint dimensions that protect against romantic partner aggression and family violence.

Publications, Patents, and Presentations

Publications

Journal Publications

Arbel, R., Schacter, H. L., Han, S. C., Timmons, A. C., Shapiro, L. S., & Margolin, G. (2019). Day-to-day friends' victimization, aggression perpetration, and the cortisol awakening response in late adolescents. Developmental Psychobiology. Advance online publication. doi: 10.1002/dev.21829.

Timmons, A. C., Han, S. C., Chaspari, T., Kim, Y., Pettit, C., Narayanan S., & Margolin, G. (2019). Family-of-origin aggression, dating aggression, and physiological stress reactivity in daily life. Physiology & Behavior, 206, 85-92. doi: 10.1016/j.physbeh.2019.03.020.

Bernstein, R., Timmons, A. C., & Lieberman, A. F. (2019). Interpersonal violence, maternal perception of infant emotion, and Child-Parent Psychotherapy. Journal of Family Violence, 34, 309-320 doi:10.1007/s10896-019-00041-7.

Corner, G. W., Saxbe, D. E., Chaspari, T., Rasmussen, H. F., Perrone, L., Pettit, C., Friendly, M., Timmons, A. C., & Margolin, G. (2018). Compassion in a heartbeat: Physiology during couples' loss discussions. Journal of Social and Personal Relationships. doi: 10.1177/0265407518770267.

Timmons, A. C., Chaspari, T., Han, S. C., Perrone, L., Narayanan, S., & Margolin, G. (2017). Using multimodal wearable technology to detect conflict among couples. IEEE Computer, 50, 50-59. doi: 10.1109/MC.2017.83.

Timmons, A. C., Baucom, B. R., Han, S. C., Perrone, L., Chaspari, T., Narayanan, S., & Margolin, G. (2017). New frontiers in ambulatory assessment: Big data methods for capturing couples' emotions, vocalizations, and physiology in daily life. Social Psychological and Personality Science, 8, 552-563. doi: 10.1177/1948550617709115.

Timmons, A. C., Arbel, R., & Margolin, G. (2017). Daily patterns of stress and conflict in couples: Associations with marital aggression and family-of-origin aggression. Journal of Family Psychology, 31, 93-104. doi: 10.1037/fam0000227. 

Arbel, R., Moss, I., Shapiro, L. S, Timmons, A. C., & Margolin, G. (2017). Adolescents' daily worry, morning cortisol, and health symptoms. Journal of Adolescent Health, 60, 667-673. doi: 10.1016/j.jadohealth.2017.01.007.

Margolin, G., Ramos, M. C., Timmons, A. C., Miller, K. F., & Han, S. C. (2016). The intergenerational transmission of aggression: Physiological regulatory processes. Child Development Perspectives, 10, 15-21. doi: 10.1111/cdep.12156.

Miller, K. F., Margolin, G., Shapiro, L. S., & Timmons, A. C. (2016). Adolescent life stress and the cortisol awakening response: The moderating roles of attachment and sex. Journal of Research on Adolescence, 27, 34-48. doi: 10.1111/jora.12250.

Timmons, A. C., & Preacher, K. J. (2015). The importance of temporal design: How do measurement intervals affect the accuracy and efficiency of parameter estimates in longitudinal research? Multivariate Behavioral Research, 50, 41-55. doi: 10.1080/00273171.2014.961056.

Timmons, A. C., & Margolin, G. (2015). Family conflict, mood, and adolescents' daily school problems: Moderating roles of internalizing and externalizing symptoms. Child Development, 86, 241-258. doi: 10.1111/cdev.12300.

Timmons, A. C., Margolin, G., & Saxbe, D. E. (2015). Physiological linkage in couples and its implications for individual and interpersonal functioning: A literature review. Journal of Family Psychology, 29, 720-731. doi: 10.1037/fam0000115.

Saxbe, D. E., Ramos, M. C., Timmons, A. C., Rodriguez, A. J., & Margolin, G. (2014). A path modeling approach to understanding family conflict: Reciprocal patterns of parent coercion and adolescent avoidance.  Journal of Family Psychology, 28, 415-420. doi: 10.1037/a0036817. View Article.

Book Chapter

Chaspari, T., Timmons, A. C., & Margolin, G. (2019). Population-specific and personalized (PSP) models of human behavior for leveraging smart and connected data. In K. C. Li, Q. Zang, L. T. Yang, & B. D. M. Smart data: State-of-the-art perspectives in computing and applications (pp. 243-258). Boca Raton, FL: CRC Press, Taylor & Francis Group.

Published Conference Proceedings

Gujral, A., Chaspari, T., Timmons, A. C., Barrett, S. C., & Margolin. G. (2018). Population-specific detection of couples' interpersonal conflict using multi-task learning. Proceedings of the International Conference on Multimodal Interaction, 229-233. doi: 10.1145/3242969.3243007.

Chaspari, T., Timmons, A. C., Baucom, B. R., Perrone, L., Tsiartas, A., Baucom, K. W. J., Georgiou, P., Margolin, G., & Narayanan, S. (2017). Exploring sparse representation measures of physiological synchrony for romantic couples. Proceedings of the International Conference of Affective Computing and Intelligent Interaction, 267-272. doi: 10.1109/ACII.2017.8273611.

Chaspari, T., Han, S. C., Bone, D., Timmons, A. C., Perrone, L., Margolin, G., & Narayanan, S. (2017). Quantifying regulation mechanisms in dating couples through a dynamical systems model of acoustic and physiological arousal. Proceedings of the IEEE International Conference on Audio, Speech, and Signal Processing, 3001-3005. doi: 10.1109/ICASSP.2017.7952707.

Chaspari, T., Han, S. C., Bone, D., Timmons, A. C., Margolin, G., & Narayanan, S. (2016). Dynamical systems modeling of acoustic and physiological arousal in young couples. Proceedings of the Association for the Advancement of Artificial Intelligence Spring Symposium Series, 343-344.

Chaspari, T., Baucom, B. R., Timmons, A. C., Tsiartas, A., Del Piero, L. B., Baucom, K. W. J., Georgiou, P., Margolin, G., & Narayanan, S. (2015). Quantifying EDA synchrony through joint sparse representation: A case study of couples' interactions. Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, 817-821. doi: 10.1109/ICASSP.2015.7178083.

Patents

Timmons, A. C., Chaspari, T., Narayanan, S., & Margolin, G. (filed March 4, 2019). US Serial No. 16/291,225: A technology-facilitated support system for monitoring and understanding interpersonal relationships.

Timmons, A. C., Chaspari, T., Ahle, M., Narayanan, S., & Margolin, G. (filed March 4, 2019). US Serial No. 16/291,399: An expert-driven, technology-facilitated intervention system for improving interpersonal relationships.

Presentations

Paper Presentations

Timmons, A. C., Han, S. C., Kim, Y., & Margolin, G. (expected June 2019). Fluctuations in pronoun use in couples’ everyday conversations: Links with dating aggression. Paper accepted at the Society for Ambulatory Assessment Conference in Syracuse, NY.

Timmons, A. C., Shapiro, L. S., Pettit, C., Barrett, S., Chaspari, T., Han, S. C., Kim, Y., Kumar, M., Narayanan, S., & Margolin, G. (February 2019). Developmental links between adolescent mood variability and later dating relationships: Considerations for using ambulatory assessment. In J. Sun (Chair), Advances in daily life methods. Symposium presented at the Society for Personality and Social Psychology Conference in Portland, OR.

Gujral, A., Chaspari, T., Timmons, A. C., Han, S. C., & Margolin. G. (March 2018). Real-life detection of interpersonal conflict in couples through the use of wearable and mobile technology.Paper presented at the International Conference on Wearable and Implantable BodySensor Networks in Las Vegas, NV.

Timmons, A. C., Han, S. C., Kim, Y., Shin, O., Perrone, L., Chaspari, T., Narayanan, S. & Margolin, G. (April 2017). Family-of-origin aggression, physiological stress reactivity in daily life, and the perpetration of aggression in young adulthood. In L. F. Katz (Chair), Affective processes and emotion regulation in the context of family violence. Symposium presented at the Society for Research in Child Development Conference in Austin, TX.

Timmons, A. C., Han, S. C., Chaspari, T., Perrone, L., Narayanan, S., & Margolin, G. (March 2016). Big data methods for capturing romantic partners’ physiology, emotion, and conversations in daily life. Paper presented at the USC Big Data and Human Behavior Symposium in Los Angeles, CA.

Chaspari, T., Timmons, A. C., Perrone, L., Margolin, G., & Narayanan, S. (March 2016). Knowledge-driven physiological representations for analyzing and interpreting wearable sensor signals. Paper presented at the USC Big Data and Human Behavior Symposium in Los Angeles, CA.

Chaspari, T., Timmons, A. C., Perrone, L., Baucom, K. J. W., Georgiou, P, Baucom, B. R., Margolin, G., & Narayanan, S. (January 2016). Quantifying physiological synchrony in romantic relationships with joint sparse representation.Paper presented at the Computational Mental Health Workshop at the Society for Personality and Social Psychology Conference in San Diego, CA.

Timmons, A. C., Margolin, G., & Baucom, B. R. (November 2014). Synchrony in romantic partners’ electrodermal activity in the home environment. In B. R. Baucom (Chair), Ambulatory physiological measurement in couples and families.Symposium presented at the Association for Behavioral and Cognitive Therapies Conference in Philadelphia, PA.

Miller, K. F., Shapiro, L. S., Timmons, A. C., & Margolin, G. (November 2014). Adolescent stress and diurnal HPA activity: The protective role of peer relationships. In B. R. Baucom (Chair), Ambulatory physiological measurement in couples and families. Symposium presented at the Association for Behavioral and Cognitive Therapies Conference in Philadelphia, PA.

Shapiro, L. S., Timmons, A. C., Susman, E. J., Miller, K. F., & Margolin, G. (November 2014). Daily variations in adolescents’ cortisol awakening responses surrounding days of parent-adolescent conflict. In B. R. Baucom (Chair), Ambulatory physiological measurement in couples and families. Symposium presented at the Association for Behavioral and Cognitive Therapies Conference in Philadelphia, PA.

Timmons, A. C., Chaspari, T., Perrone, L., Feng, T., Narayanan, S., & Margolin, G. (June 2015). Dating aggression and physiological connectedness in everyday life. In P. L. K. Plumb (Chair), Dyadic interactions in daily life. Symposium presented at the Society of Ambulatory Assessment Conference in State College, PA.

Ramos, M. C., & Timmons, A. C. (May 2014).The influence of family aggression history on triadic family interactions: Marital hostility, parent-youth alliances, and adolescent symptoms. In M. C. Ramos (Chair), Family violence exposure and everyday family interactions: Behavioral, neural, and physiological findings.Symposium presented at the Association for Psychological Science Conference in San Francisco, CA.

Timmons, A. C., & Margolin, G. (May 2013). Family conflict, negative mood, and adolescents’ daily problems in school. Paper presented at the USC Leibovitz Conference in Los Angeles, CA.

Timmons, A. C., & Margolin, G. (April 2013). Family conflict, negative mood, and adolescents’ daily problems in school. In J. Borelli (Chair), Parent-child relationship quality and children’s psychosocial adjustment across development: Child emotion as a mediator/moderator. Symposium presented at the Society for Research in Child Development Conference in Seattle, WA.

Poster Presentations

Jusko, M. L., Raiker, J., Mattfeld, A., Timmons, A. C., Fosco, W., Campez, M., Little, K., Smith, J., & Sanchez, G. (expected June 2019). Mechanisms underlying reaction time variability in ADHD: The use of hidden markov modeling to isolate on- and off-task states in reaction time distributions. Poster accepted at the International Society for Research in Child and Adolescent Psychopathology Conference in Los Angeles, CA. 

Del Campo, A., Gomez, P., Griffin, C., Hernandez, G., Michel, M., Meijias F., A., Morey, A., & Timmons, A. C. (April 2019). Couples’ language use and vocal pitch during everyday relationship distress: Links with dating aggression. Poster presented at the FIU Conference for Undergraduate Research in Miami, FL.

Estafanous, M., Reyes, S., Kwan, C., Han, S. C., Kim, Y., Pettit, C., Sichko, S., Timmons, A. C., & Margolin, G. (April 2019). Speaking sweet nothings: How syntax words relate to couple closeness. Poster presented at the USC Undergraduate Research Symposium, Los Angeles, CA.

Han, S. C., Kim, Y., Timmons, A., Sichko, S., Pettit, C., Barrett, S., & Margolin G. (2019). Family-of-origin aggression and the expression of anger words in daily life among young adult dating couples. Poster presented at the International Convention of Psychological Science in Paris, France. 

Timmons, A. C. (June 2018). The development of an mHealth infrastructure for child and family therapy. Poster presented at the mHealth Technology Showcase for Health Research at the National Institute of Health in Bethesda, MD.

Barrett, S., Lane, A., Han, S., Kim, Y., Shin, O., Pettit, C., Timmons, A. C., & Margolin, G. (May 2018). Do men and women speak the same language? Everyday word use in relation to self-reported mood and depressive symptoms. Poster presented at the Association for Psychological Science Conference in San Francisco, CA. 

Shin, O., Haque, A., Estafanous, M., Han, S. C., Timmons, A. C., & Margolin, G. (November 2017). Parent-to-child aggression moderates the relationship between feelings of closeness and couples’ sleep concordance in daily life. Poster presented at the International Society for Traumatic Stress Studies Conference in Chicago, IL.

Timmons, A. C., Chaspari, T., Han, S. C., Kim, Y., Narayanan, S., & Margolin, G. (June 2017). The detection and prediction of couple conflict using mobile sensing technologies. Poster presented at the Society for Ambulatory Assessment Conference in Luxembourg, Luxembourg.

Timmons, A. C., Chaspari, T., Han, S. C., Kim, Y., Narayanan, S., & Margolin, G. (April 2017). Using machine learning to automatically detect couple conflict in daily life. Poster presented at the USC Big Data and Human Behavior Symposium in Los Angeles, CA.

Chaspari, T., Han, S. C., Bone, D., Timmons, A. C., Perrone, L., Margolin, G., & Narayanan, S. (April 2017). Quantifying regulation mechanisms in dating couples through a dynamical systems model of acoustic and physiological arousal. Poster presented at the USC Big Data and Human Behavior Symposium in Los Angeles, CA.

Han, S. C., Timmons, A. C., Kim, Y., Rasmussen, H., Chaspari, T., Bisla, R., Estafanous, M., Rajeev, P., Salehani, K., Shin, O., Perrone, L., & Margolin, G. (April 2017). Parent-to-child aggression and anger words in daily life among young adults. Poster presented at the Society for Research on Child Development Conference in Austin, TX.

Shapiro, L. S., Margolin, G., Timmons, A. C., Miller, K. F., & Susman, E. J. (April 2017). History of parent-to-youth conflict and attenuated diurnal HPA activity in adolescents. Poster presented at the Society for Research on Child Development Conference in Austin, TX.

Shin, O., Haque, A., Estafanous, M., Han, S. C., Timmons, A. C., & Margolin, G. (April 2017). Feelings of closeness and couples’ concordance in sleep in daily life: Parent-to-child aggression as a moderator. Poster presented at the USC Undergraduate Research Symposium in Los Angeles, CA.

Kim, Y., Timmons, A. C., Han, S. C., Perrone, L., Haque, A., Ward, M., & Margolin, G. (May 2016). Rejection sensitivity as a moderator of the association between heart rate variability and everyday relationship distress. Poster presented at the Association for Psychological Science Conference in Chicago, IL.

Power, K. A., Han, S. C., Timmons, A. C., Perrone, L., Nguyen, J., & Margolin, G. (May 2016). “I” usage in couples’ everyday lives: How language relates to relationship functioning. Poster presented at the Association for Psychological Science Conference in Chicago, IL.

Vitale, L., Timmons, A. C., Han, S. C., Perrone, L., Murphy, M., & Margolin, G. (May 2016). Attachment style, romantic partner presence, and physiological arousal in daily life. Poster presented at the Association for Psychological Science Conference in Chicago, IL.

Hee, E., Shin, O., Yoon, J., Haque, A., Nguyen, J., Salehani, K., Han, S. C., Timmons, A. C., & Margolin, G. (April 2016). First-person pronoun use: How everyday language is associated with relationship satisfaction. Poster presented at the USC Undergraduate Research Symposium in Los Angeles, CA.

Han, S. C., Timmons, A. C., Perrone, L., & Margolin, G. (November 2015). Traumatic life events  and physiological arousal in daily life. Poster presented at the International Society for Traumatic Stress Studies Conference in New Orleans, LA.

Perrone, L., Timmons, A. C., Han, S. C., Vitale, L., & Margolin, G. (November 2015). Victimization and perpetration in couples: Associations between dating violence and electrodermal activity in daily life. Poster presented at the International Society for Traumatic Stress Studies Conference in New Orleans, LA.

Rosenberg, S., Nguyen, J., Haque, A., Yang, Y., Timmons, A. C., Han, S. C., & Margolin, G. (April 2015). Patterns of physiological activity associated with dating violence in daily life. Poster presented at the USC Undergraduate Research Symposium in Los Angeles, CA.

Timmons, A. C., Feng, T., Chaspari, T., Narayanan, S., & Margolin, G. (March 2015). An evaluation of novel methodologies for capturing couple dynamics in the home environment. Poster presented at the International Convention of Psychological Science in Amsterdam, Netherlands.

Timmons, A. C., Chaspari, T., Narayanan, S., & Margolin G. (March 2015). The association between family violence history and physiological coregulation in dating relationships. Poster presented at the Society for Research in Child Development Conference in Philadelphia, PA.

Timmons, A. C., Shapiro, L. S., & Margolin, G. (March 2015). Cortisol reactivity, psychological symptoms, and parent-adolescent linkage in daily moods. Poster presented at the Society for Research in Child Development Conference in Philadelphia, PA.

Del Piero, L. B., Timmons, A. C., & Margolin, G. (March 2015). Heart rate coregulation in young romantic couples. Poster presented at the Society for Research in Child Development Conference in Philadelphia, PA.

Kellerman, I., Timmons, A. C., Ramos, M. C., & Margolin, G. (March 2015). Associations between negative mood and peer interactions: A daily diary study. Poster presented at the Society for Research in Child Development Conference in Philadelphia, PA.

Miller, K. F., Shapiro, L. S., Timmons, A. C., & Margolin, G. (March 2015). Parent and peer relationships moderate the association between adolescent depressive symptoms and HPA dysregulation. Poster presented at the Society for Research in Child Development Conference in Philadelphia, PA.

Shapiro, L. S., Margolin, G.,Timmons, A. C., Miller, K. F., & Susman, E. J. (March 2015). Risk- taking in adolescence: An investigation of diurnal cortisol in relation to daily and previous-year risky behaviors. Poster presented at the Society for Research in Child Development Conference in Philadelphia, PA.

Arbel, R., Shapiro, L. S., Kellerman, I., Ramos, M. C., Timmons, A. C., & Margolin, G. (March 2015). Daily worries and fluctuations in adolescents’ diurnal HPA patterns: The moderating role of depressive symptoms.Poster presented at the Society for Research in Child Development Conference in Philadelphia, PA.

Timmons, A. C., & Margolin, G. (March 2014). Covariation of mood in parent-adolescent dyads and its links with depressive symptoms. Poster presented at the Society for Research on Adolescence Conference in Austin, TX.

Kellerman, I., Timmons, A. C., Ramos, M. C., Borofsky, L., & Margolin, G. (March 2014). Using daily diary data to test temporal associations between negative mood and overeating among adolescents. Poster presented at the Society for Research on Adolescence Conference in Austin, TX.

Ramos, M., C., Timmons, A. C., Rodriguez, A. J., & Margolin, G. (March 2014). Observed marital conflict and parent-adolescent coalitions during triadic interaction: Links with family violence history and later youth symptoms. Poster presented at the Society for Research on Adolescence Conference in Austin, TX.

Ramos, M. C., & Timmons, A.C., & Margolin, G. (April 2013). Everyday conflict in multiple family domains: A daily diary study of adolescents. Poster presented at the Society for Research in Child Development Conference in Seattle, WA.

Timmons, A. C. (August 2012). An integrative framework for promoting the interchangebetween substantive and quantitative research. Poster presented atthe American Psychological Association Conference in Orlando, FL.

Timmons, A. C. (July 2012). Testing lagged intraindividual mediation models in a multilevel structural equation modeling framework. Poster presented at the International Meeting of the Psychometric Society in Lincoln, NE.

Timmons, A. C., & Preacher, K. J. (May 2012). Temporal design considerations for nonlinear data. Poster presented at the Association of Psychological Science Conference in Chicago, IL.

Timmons, A. C., & Pisciotta, M. (April 2010). The role of gender bias in depression, reassurance-seeking, and interpersonal rejection. Poster presented at the Midwestern Psychological Association Conference in Chicago, IL.

Bistricky, S., Young, K., O’Hare, A., Stroupe, N., Fitts, A., Schuster, J., Timmons, A. C., Judah, M., Ilardi, S., & Atchley, R. (September 2009). Depression and attention to emotionally valenced words and images: An event-related potentials (ERP) study. Poster presented at the Society for Research in Psychopathology Conference in Minneapolis, MN.

Funding and Awards

Grants and Fellowships

University of California, San Francisco Clinical Research Startup Funds, 2018
Adela C. Timmons (PI)

National Science Foundation Graduate Research Fellowship Program, 2013-2016
The Psychobiological Covariation of Electrodermal Activity between Dating Pairs in Early Adulthood and its Links with Parent-Child Relationships
Adela C. Timmons (PI) 

University of Southern California Undergraduate Research Associates Program, 2016
Capturing Life as it is Lived: Using Mobile Technology to Identify Real-World Indicators of Dating Aggression
Adela C. Timmons (Co-I)

University of Southern California Wallis Annenberg Endowed Fellowship, 2011, 16
Adela C. Timmons (PI)

University of Southern California Undergraduate Research Associates Program, 2015
A Day in the Life: Using Mobile Technology to Capture Indicators of Dating Aggression
Adela C. Timmons (Co-I) 

American Psychological Association Dissertation Award, 2015
Romantic Partners’ Physiological and Emotional Coregulation in the Home Environment
Adela C. Timmons (PI) 

American Psychological Association of Graduate Students Basic Psychological Science Research Grant, 2014
Covariation of Physiological Arousal between Dating Pairs in Early Adulthood and its Links with Parent-Child Relationships
Adela C. Timmons (PI)

American Psychological Association of Graduate Students/Psi Chi Junior Scientist Fellowship Award, 2012
Adela C. Timmons (PI)

Awards

Second Place, University of Southern California Student Innovator Showcase, 2017
An AI-Assisted Smartphone App for Your Relationship Health
Adela C. Timmons 

Gerald Davison Award for Scientific Writing in Clinical Psychology, 2017
Adela C. Timmons 

Second Place, University of Southern California Big Data and Human Behavior Symposium, 2016
Adela C. Timmons