Research

Dr. Kaplan has spent many years conducting research at Stanford University and the University of California Berkeley, and currently collaborates with research teams nationally and internationally. Her research has been published in JAMA Network journals, the American Journal of Psychiatry, Psychological Medicine and other leading journals.

For many years, Dr. Kaplan has explored the ways in which sleep impacts mental health and mental health impacts sleep.  Dr. Kaplan's research interests span four (often overlapping) domains: (1) insomnia and hypersomnia in affective disorders; (2) behavioral interventions for sleep disturbances in adults and adolescents; (3) circadian and psychosocial factors impacting sleep in adolescence; and (4) machine learning approaches to population-level sleep patterns. Her research and training have been supported by the National Institute of Health, the National Science Foundation, the Lucile Packard Foundation at Stanford, and other organizations.

Here is a list of Dr. Kaplan’s publications through 2023:

  1. Mirchandaney, R., Asarnow, L.D., & Kaplan, K.A. (2023). Recent advances in sleep and depression. Current Opinion in Psychiatry, 36(1), 34-40.

  2. Soehner, A.M., Kaplan, K.A., Kanady, J., & Harvey, A.G. (2023). Cognitive therapy for insomnia. In C. Kushida (Ed.), Encyclopedia of Sleep (Vol. 3). Waltham, MA: Academic Press.

  3. Lok, R., Chawra, D., Hon, F., Ha, M., Kaplan, K.A. & Zeitzer, J.M. (2022).  Objective underpinnings of self-reported sleep quality in middle-aged and older adults: the importance of N2 and wakefulness. Biological Psychology, 170, 108290.

  4. Fernandez-Mendoza, J., Puaino, G., Amatrudo, E., Bourchtein, S.L., Calhoun, S., Plante, D.T., Kaplan, K.A. The Hypersomnia Severity Index: reliability, construct, and criterion validity in a clinical sample of patients with sleep disorders. (2021). Journal of Clinical Sleep Medicine, 17(11), 2249-2256.

  5. Kaplan, K.A. & Gasperetti, C.E. (2020). Psychometric scales measuring hypersomnolence. Current Sleep Medicine Reports, 6, 111-120.

  6. Faederman, A., Kaplan, K.A. & Zetizer, J.M. (2020). Subjective sleep quality is poorly associated with actigraphy and heart rate measures in community-dwelling older men. Sleep Medicine, 73, 154-161.

  7. Kaplan, K.A. (2020). Sleep and sleep treatments in bipolar disorder. Current Opinion in Psychology, 34, 117-122.

  8. Kaplan, K.A., Mashash, M., Williams, R., Starr-Glass, L., Batchelder, H., Zetizer, J.M. (2019) Effect of light flashes vs sham therapy during sleep with adjunct cognitive behavioral therapy on sleep quality among adolescents: A randomized clinical trial. JAMA Network Open, 2(9).

  9. Kaplan, K.A., Plante, D.T., Cook, J.D., Soehner, A.M. & Harvey, A.G. (2019) Development and validation of the Hypersomnia Severity Index (SHI): A measure to assess hypersomnia severity and impairment in psychiatric disorders. Psychiatry Research, 281, 1125-47.

  10. Kaplan, K.A., Talavera, D. & Harvey, A.G. (2018) Rise and shine: A novel behavioral experiment to increase morning activity and decrease morning sleepiness in individuals with bipolar disorder. Behavior Research and Therapy, 111, 106-112.

  11. Kaplan, K.A., Hardas, P., Redline, S. & Zeitzer, J.M. (2017) Correlates of sleep quality in midlife and beyond: A machine learning analysis. Sleep Medicine, 34, 162-167.

  12. Soehner, A.M., Saletin, J., Kaplan, K.A., Harvey, A.G. (2017) Slow wave activity and overnight mood regulation in inter-episode bipolar disorder. Psychological Medicine, 19, 1-12.

  13. Kaplan, K.A., Hirshman, J., Hernandez, B., Stefanick, M., Hoffman, A.R., Redline, S., Ancoli-Israel, S., Stone, K., Friedman, L., Zeitzer, J.M. (2017). When a gold standard isn’t so golden: Lack of prediction of subjective sleep quality from sleep polysomnography. Biological Psychology, 123, 37-46.

  14. Kaplan, K.A. & Williams, R. (2017). Hypersomnia: An overlooked, but not overestimated, sleep disturbance in bipolar disorder. Evidence-Based Mental Health, 102433.

  15. Zeitzer, J.M., Nouriani, B., Rissling, M., Kaplan, K.A., Aasly, L., Palesh, O., Sledge, G., Jo, B., Neri, E., Dhabhar, F.S. & Spiegel, D. (2016). Aberrant nocturnal cortisol and disease progression in women with breast cancer. Breast Cancer Research and Treatment, 158(1), 43-50.

  16. Kaplan, K.A., McGlinchey, E.L., Soehner, A., Gershon, A., Talbot, L.S., Eidelman, P., Gruber, J. & Harvey, A.G. (2015). Hypersomnia Subtypes, Sleep and Relapse in Bipolar Disorder. Psychological Medicine, 45(8), 1751-63.

  17. Harvey, A.G., Soehner, A.M., Kaplan, K.A., Hein, K., Lee, J., Kanady, J. et al. (2015). Treating insomnia improves sleep, mood and functioning in bipolar disorder: A pilot randomized controlled trial. Journal of Consulting and Clinical Psychology, 83(3), 564-77.

  18. Harvey, A.G., Kaplan, K.A. & Soehner, A.M. (2015). Interventions for sleep disturbance in bipolar disorder. Sleep Medicine Clinics, 10(1), 101-5.

  19. McGlinchey, E.L., Gershon, A., Eidelman, P., Kaplan, K.A., & Harvey, A.G. (2014). Physical activity and sleep: Day-to-day associations among individuals with and without Bipolar Disorder. Mental Health and Physical Activity, 7(3), 183-190. 

  20. Soehner, A.M., Kaplan, K.A. & Harvey, A.G. (2014). Prevalence and clinical correlates of co-occurring insomnia and hypersomnia symptoms in depression. Journal of Affective Disorders, 167, 93-97.

  21. Kaplan, K.A., McQuaid, J., Batki, S., & Rosenlicht, N. (2014). Behavioral treatment of insomnia in early recovery. Journal of Addiction Medicine, 8(6), 395-8.

  22. Kaplan, K.A., McQuaid, J., Primrich, C., & Rosenlicht, N. (2014). An evidence-based review of insomnia treatment in early recovery. Journal of Addiction Medicine, 8(6), 389-94.

  23. Kaplan, K.A. & Harvey, A.G. (2013). Behavioral treatment of insomnia in bipolar disorder. American Journal of Psychiatry, 7(170), 716-720.

  24. Kaplan, K.A. & Harvey, A.G. (2013). Treatment of sleep disturbance. In D. Barlow (Ed), Clinical Handbook of Psychological Disorders, 5th Edition. New York: Guilford Press.

  25. Soehner, A.M., Kaplan, K.A. & Harvey, A.G. (2013). The nature and challenges posed by insomnia comorbid to severe psychiatric illness. Sleep Medicine Clinics, 8, 361-371.

  26. Soehner, A.M., Kaplan, K.A., Kanady, J., & Harvey, A.G. (2013). Cognitive therapy for insomnia. In C. Kushida (Ed.), Encyclopedia of Sleep (Vol. 2, pp. 290-295). Waltham, MA: Academic Press.

  27. Kaplan, K.A., Talbot, L.S., Gruber, J. & Harvey, A.G. (2012). Comparison between actigraphy, polysomnography, and sleep diary in individuals with bipolar disorder. Bipolar Disorders, 14, 870-879.

  28. Gershon, A., Thompson, W.K., Eidelman, P., McGlinchey, E., Kaplan, K.A. & Harvey, A.G. (2012). Restless pillow, ruffled mind: Sleep and affect coupling in inter-episode bipolar disorder. Journal of Abnormal Psychology, 121(4), 863-873.

  29. Eidelman, P., Gershon, A., Kaplan, K., McGlinchey, E. & Harvey, A.G. (2012). Social support and social strain in inter episode bipolar disorder. Bipolar Disorders, 14(6), 628-640.

  30. Dagys, N., McGlinchey, E.L., Talbot, L.S., Kaplan, K.A., Dahl, R.E. & Harvey, A.G. (2012). Double Trouble? The Effects of Sleep Deprivation and Chronotype on Adolescent Affect. Journal of Child Psychology and Psychiatry, 53(6), 660-7.

  31. Harvey, A.G., Kaplan, K.A., Soehner, A. (2012). Interventions for Sleep Disturbance in Bipolar Disorder. In J. Herman & M. Hirshkowitz (Eds). Sleep Medicine and Psychiatric Illness. Lippincott Williams & Wilkins. Philadelphia.

  32. Kaplan, K.A., Gruber, J., Eidelman, P., Talbot, L.S., & Harvey, A.G. (2011). Hypersomnia in inter-episode bipolar disorder: Does it have prognostic significance? Journal of Affective Disorders, 132(3), 438-44.

  33. McGlinchey, E.L., Talbot, L.T., Chang, K., Kaplan, K.A., Dahl, R.E., Harvey, A.G. (2011). Vocal expression of emotion in sleep-deprived adolescents and adults. SLEEP, 34(9), 1233-1241

  34. Talbot, L.S., McGlinchey, E.L., Kaplan, K.A., Dahl, R.E., Harvey, A.G. (2010). Sleep Deprivation in Adolescents and Adults: Changes in Affect. Emotion, 10(6), 831-41.

  35. Kaplan, K.A., Talbot, L.S. & Harvey, A.G. (2009). Cognitive mechanisms in chronic insomnia: Processes and prospects. Sleep Medicine Clinics, 4(4), 541-548.

  36. Kaplan, K.A. & Harvey, A.G. (2009). Hypersomnia across mood disorders: A review and synthesis. Sleep Medicine Reviews, 13, 275-285.

  37. Kaplan, K.A., Itoi, A., & Dement, W.C. (2007). Relationship between awareness of sleepiness and ability to predict sleep onset: Can drivers avoid falling asleep at the wheel? Sleep Medicine, 9(1), 71-79.

  38. Kamdar, B.B., Kaplan, K.A., Kezirian, E.J., & Dement, W.C. (2004). The impact of extra sleep on daytime alertness, vigilance, and mood. Sleep Medicine, 5, 441-448.