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Samantha Pegg


Research Area: Clinical Science


Mood disorders, emotion and reward processing

Samantha Pegg is broadly interested in studying the underlying mechanisms of mood and anxiety disorders, particularly how alterations in emotional and social processing contribute to the development of these disorders. 

Lab Website

Representative Publications

Peer-Reviewed Publications

Dickey, L., Pegg, S., & Kujawa, A. (in press). Neurophysiological responses to interpersonal emotional images: Associations with symptoms of depression and social anxiety. Cognitive Affective and Behavioral Neuroscience.

Kamali, M., Pegg, S., Janos, J. A., Bobo, W. V., Brody, B., Gao, K., Ketter, T. A., McElroy, S. L., McInnis, M. G., Rabideau, D., Reilly-Harrington, N., Shelton, R. C., Sylvia, L. G., Tohen, M., & Nierenberg, A. (2021). Illness stage and predominant polarity in bipolar disorder: Correlation with burden of illness and moderation of treatment outcome. Journal of Psychiatric Research, 140, 205-213. doi: 10.1016/j.jpsychires.2021.05.082

Kesselring, I., Yaremych, H., Pegg, S., Dickey, L., & Kujawa, A. (2021). Zoom or in-person: An ecological momentary assessment study of time with friends and depressive symptoms on affect in emerging adults. Journal of Social and Clinical Psychology. Advance online publication. doi:10.1521/jscp.2021.40.2.97

Dickey, L., West, M., Pegg, S., Green, H., & Kujawa, A. (2021). Neurophysiological responses to interpersonal emotional images prospectively predict the impact of COVID-19 pandemic-related stress on internalizing symptoms. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, S2451-9022(21)00081-1. Advance online publication. doi: 10.1016/j.bpsc.2021.03.004

Pegg, S.*, Jeong, H. J.*, Foti, D., & Kujawa, A. (2021). Differentiating stages of reward responsiveness: Neurophysiological measures and associations with facets of the behavioral activation system. Psychophysiology, e13764. Advance online publication. doi: 10.1111/psyp.13764 *Joint first authorship

Pegg, S., Arfer, K., & Kujawa, A. (2021). Altered reward responsiveness and depressive symptoms: An examination of social and monetary reward domains and interactions with rejection sensitivity. Journal of Affective Disorders, 282, 717-725. doi: 10.1016/j.jad.2020.12.093

Sylvia, L. G., Janos, J. A., Pegg, S., Montana, R. E., Gold, A. K., Bianchi, M., & Nierenberg, A. A. (2021). Pilot study of a brief sleep intervention for suicidal ideation in bipolar disorder. Journal of Psychiatric Practice, 27, 109-114.

Weinberg, A., Ethridge, P., Pegg, S., Freeman, C., Kujawa, A., & Dirks, M. (2020). Neural responses to social acceptance predict behavioral adjustments following peer feedback in the context of a real-time social interaction task. Psychophysiology, e13748. Advance online publication. doi: 10.1111/psyp.13748

Kujawa, A., Green, H., Compas, B. E., Dickey, L., & Pegg, S. (2020). Exposure to COVID-19 pandemic stress: Associations with depression and anxiety in emerging adults in the United States. Depression and Anxiety, 37, 1280-1288.doi: 10.1002/da.23109

Nyman, T., Pegg, S., Kiel, E. J., Mistry-Patel, s., Schmall, L. J., & Brooker, R. J. (2020). Perceived social support moderates neural reactivity to emotionally valenced stimuli during pregnancy. Psychophysiology. doi: 10.1111/psyp.13647

Kujawa, A., Klein, D. N., Pegg, S., & Weinberg, A. (2020). Developmental trajectories to reduced activation of positive valence systems: A review of biological and environmental contributions. Developmental Cognitive Neuroscience, 43, 1-20. doi:10.1016/j.dcn.2020.100791

Pegg, S., Dickey, L., Green, H., & Kujawa, A. (2020). Differentiating clinically depressed adolescents with and without active suicidality: An examination of neurophysiological and self-report measures of reward responsiveness. Depression and Anxiety. Advance online publication. doi: 10.1002/da.23012 *Won Barbara Strudler Wallston Memorial Award

Pegg, S., & Kujawa, A. (2020). The effects of a brief motivation manipulation on reward responsiveness: A multi-method study with implications for depression. International Journal of Psychophysiology, 150, 100-107. doi: 10.1016/j.ijpsycho.2020.02.004

Pegg, S., Walsh, L. M., Becker-Haimes, E. M., Ramirez, V., & Jensen-Doss, A. (2019). Money makes the world go ‘round: A qualitative examination of the role funding plays in large-scale implementation and sustainment of youth evidence-based practice. Psychological Services. Advance online publication. doi: 10.1037/ser0000399

Pegg, S.*, Dickey, L.*, Mumper, E., Kessel, E., Klein, D. N., & Kujawa, A. (2019). Stability and change in emotional processing across development: A 6-year longitudinal investigation using event-related potentials. Psychophysiology, e13438. doi: 10.1111/psyp.13438 *Joint first authorship

Pegg, S., Ethridge, P., Shields, G. S., Slavich, G. M., Weinberg, A., & Kujawa, A. (2019). Blunted social reward responsiveness moderates the effect of lifetime social stress exposure on depressive symptoms. Frontiers in Behavioral Neuroscience, 13, 1-12. doi: 10.3389/fnbeh.2019.00178

Sylvia, L. G., Pegg, S., Dufour, S. C., Janos, J. A., Bernstein, E. E., Chang, W. C., Hall, N., Ellard, K. K., Nierenberg, A. A., & Deckersbach, T. (2019). Pilot study of a lifestyle intervention for bipolar disorder: Nutrition Exercise Wellness Treatment (NEW Tx). Journal of Affective Disorders, 250, 278-283. doi: 10.1016/j.jad.2019.03.033

Sylvia, L. G., Janos, J. A., Pegg, S., Dufour, S. C., Chang, W. C., Bernstein, E. E., Davis, B. J., Ellard, K. K., Deckersbach, T., & Nierenberg, A. A. (2019). Feasibility and acceptability of a lifestyle intervention for individuals with bipolar disorder. Journal of Psychiatric Practice, 25, 451-460. doi: 10.1097/PRA.0000000000000426

Caldieraro, M. A., Dufour, S. C., Sylvia, L. G., Gao, K., Ketter, T. A., Bobo, W. V., Walsh, S., Janos, J. A., Tohen, M., Reilly-Harrington, N. A., McElroy, S. L., Shelton, R. C., Bowden, C. L., Deckersbach, T., & Nierenberg, A. A. (2018). Treatment outcomes of acute bipolar depressive episode with psychosis. Depression and Anxiety, 35, 402-410. doi: 10.1002/da.22716

Uebelacker, L. A., Dufour, S. C., Dinerman, J. G., Walsh, S., Hearing, C. M., Gillette, L. T., Deckersbach, T., Nierenberg, A. A., Weinstock, L. M., & Sylvia, L. G. (2018). Examining the feasibility and acceptability of an online yoga class for mood disorders: A MoodNetwork study. Journal of Psychiatric Practice, 24, 60-67. doi: 10.1097/PRA.0000000000000286

Sylvia, L. G., Hearing, C. M., Montana, R. E., Gold, A. K., Walsh, S., Janos, J. A., Tovey, R. E., Deckersbach, T., & Nierenberg, A. A. (2018). MoodNetwork: An innovative approach to patient-centered research. Medical Care, 56, S48-S52. doi: 10.1097/MLR.0000000000000789

Caldieraro, M. A., Sylvia, L. G., Dufour, S. C., Walsh, S., Janos, J., Rabideau, D. J., Kamali, M., McInnis, M. G., Bobo, W. V., Friedman, E. S., Gao, K., Tohen, M., Reilly-Harrington, N. A., Ketter, T. A., Calabrese, J. R., McElroy, S. L., Thase, M. E., Shelton, R. C., Bowden, C. L., Kocsis, J. H., Deckersbach, T., & Nierenberg, A. A. (2017). Clinical correlates of acute bipolar depressive episode with psychosis. Journal of Affective Disorders, 217, 29-33. doi: 10.1016/j.jad.2017.03.059

Caldieraro, M. A., Walsh, S., Deckersbach, T., Bobo, W. V., Gao, K., Ketter, T. A., Shelton, R. C., Reilly-Harrington, N. A., Tohen, M., Calabrese, J. R., Thase, M. E., Kocsis, J. H., Sylvia, L. G., & Nierenberg, A. A. (2017). Decreased activation and subsyndromal manic symptoms predict lower remission rates in bipolar depression. Australian and New Zealand Journal of Psychiatry, 52, 994-1002. doi: 10.1177/0004867417741982

Jensen-Doss, A., Smith, A. M., Becker-Haimes, E. M., Ringle, V., Walsh, L. M., Nanda, M. M., Walsh, S., Maxwell, C. A., & Lyon, A. R. (2017). Individualized progress measures are more acceptable to clinicians than standardized measures: Results of a national survey. Administration and Policy in Mental Health and Mental Health Services Research, 45, 392-403. doi: 10.1007/s10488-017-0833-y

Selected Conference Poster Presentations

Pegg, S., & Kujawa, A. (2020, June – September). Reward responsiveness enhanced by a brief motivation manipulation: A multi-method study with implications for depression. Poster presented at the APS Poster Showcase.

Dickey, L., Pegg, S., & Kujawa, A. (2020, June – September). Neurophysiological reactivity to interpersonal threats moderates the association between stress and social anxiety in emerging adults. Poster presented at the APS Poster Showcase.

Kesselring, I., Pegg, S., Dickey, L., & Kujawa, A. (2020, June – September). Depressive symptoms predict greater negative affect and less time with friends: An ecological momentary assessment (EMA) study. Poster presented at the APS Poster Showcase.

Pegg, S., Arfer, K. B., & Kujawa, A. (2020, March). Blunted neural responsiveness to social reward moderates the association between rejection sensitivity and depressive symptoms. Poster accepted for presentation at the 40th annual meeting of the Anxiety and Depression Association of American, San Antonio, TX. (Conference canceled)

Pegg, S., Dickey, L., Mumper, E., Kessel, E. M., Klein, D. N., & Kujawa, A. (2019, November). Developmental trajectories of earlier and later stages of emotional processing: A 6-year longitudinal investigation using event-related potentials. Poster presented at the Developmental Affective Neuroscience Symposium, Pittsburgh, PA.

Pegg, S. L., Arfer, K. B., & Kujawa, A. (2019, September). Neurophysiological measures of social feedback processing predict real-world experience of emotions in social settings. Poster presented at the 33rd annual meeting of the Society for Research in Psychopathology, Buffalo, NY.

Green, H., Pegg, S. L., & Kujawa, A. (2019, September). Neural and self-reported reward responsiveness as predictors of response to group cognitive behavioral therapy for adolescent depression. Poster presented presentation at the 33rd annual meeting of the Society for Research in Psychopathology, Buffalo, NY.

Jeong, H. J., Pegg, S. L., Foti, D., & Kujawa, A. (2019, September). Neural processing of monetary incentives predicts real world momentary affect. Poster presented at the 33rd annual meeting of the Society for Research in Psychopathology, Buffalo, NY.

Pegg, S. L., Dickey, L., Mumper, E., Kessel, E. M., Klein, D. N., & Kujawa, A. (2019, November). Developmental trajectories of earlier and later stages of emotional processing: A 6-year longitudinal investigation using event-related potentials. Poster presented at the Developmental Affective Neuroscience Symposium, Pittsburgh, PA.

Pegg, S. L., Arfer, K. B., & Kujawa, A. (2019, March) Distinct dimensions of mood symptoms associated with altered social reward processing in clinically depressed adolescents. Poster presented at the 39th annual meeting of the Anxiety and Depression Association of America, Chicago, IL.

Pegg, S. L., Ethridge, P., Shields, G. S., Slavich, G. M., Weinberg, A., & Kujawa, A. (2018, September). Associations between lifetime stress exposure and neurophysiological and behavioral measures of social feedback processing in emerging adults. Poster presented at the 32nd annual meeting of the Society for Research in Psychopathology, Indianapolis, IN.

Selected Conference Symposia

Kujawa, A., Pegg, S., & Green, H. (2020, November). Social and monetary reward responsiveness as predictors of response to cognitive behavior therapy for adolescent depression. In A. Kujawa (Chair), Innovative approaches for advancing research on treatment and prevention of mood disorders. Symposium presented at the 54th annual meeting of the Association for Behavioral and Cognitive Therapies (held virtually).

Weinberg, A., Ethridge, P., Freeman, C., Pegg, S. L., Dirks, M. A., & Kujawa, A. (2019, September). With friends like these: Neural responses to peer feedback in depression and risk for depression. In G. Hajcak & J. Klawohn (Chairs), Depression and blunted neural response to reward: increasing specificity and prospective associations. Symposium presented at the 59th annual meeting of the Society of Psychophysiological Research, Washington, DC.

Kujawa, A., Pegg, S. L., Arfer, K., Finsaas, M., Kessel, E. M., Mumper, E., & Klein, D. N. (2019, September). Neural reactivity to social feedback and peer stress in adolescents at risk for depression. In S. Wilson & T. Olino (Chairs), Neurobehavioral indicators of risk for the development and familial transmission of internalizing, externalizing, and psychotic psychopathology. Symposium presented at the 33rd annual meeting of the Society for Research in Psychopathology, Buffalo, NY.


Honors

Sidney P. Colowick Graduate Scholar. Vanderbilt University, 2021.

Barbara Strudler Wallston Memorial AwardVanderbilt University, 2020.

University of Michigan Training Course in fMRI. NIH-funded participant, 2019.

Russell G. Hamilton Scholar. Vanderbilt University, 2018. 

Phi Beta Kappa. University of Miami, 2016.