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My research focus is in understanding the development of children’s biobehavioral regulation as it relates to health, academic skills, and adjustment. My research utilizes several measures of child psychophysiology, including neuroendocrine and autonomic nervous system activity, as well as child sleep, assessed using video recordings, actigraphy, and parent report. My recent work is particularly focused on how child regulation is related to adjustment in contexts of risk, including family and socioeconomic adversity.

Ph.D. Human Development & Family Studies (2015)
The Pennsylvania State University

M.S. Human Development & Family Studies (2012)
The Pennsylvania State University

B.A. Psychology, Neuroscience Concentration (2009)
Williams College

Philbrook, L.E., Chen, J.*, Decker, R.A.*, & Khaner, L.B.* (2023, epub ahead of print). Loneliness and maladjustment in young adults:  The protective effects of high respiratory sinus arrhythmia and sleep quality. Emerging Adulthood. https://doi.org/10.1177/21676968231174081

Philbrook, L.E., & Simmons, E.J.* (2022, epub ahead of print). Sleepiness moderates the associations between personality and financial risk tolerance and spending habits among college students. Behavioral Sleep Medicine. https://doi.org/10.1080/15402002.2022.2154212

Philbrook, L.E. (2022, epub ahead of print). Associations between parental involvement at bedtime and young children's evening cortisol and nighttime sleep. Developmental Psychobiology. https://doi.org/10.1002/dev.22322

Philbrook, L.E., Aguilar, K.*, Bohan, A.R.*, Daza, K.M.*, & Harris, S.L.* (2022, epub ahead of print). Bedtime parenting practices and sensitivity are associated with young children's sleep. Journal of Family Psychology. https://doi.org/10.1037/fam0001027

Philbrook, L.E., Becker, L.E.,* & Linde, J.* (2022, epub ahead of print). Sleep disturbances moderate the association between effortful control and executive functioning in early childhood. Journal of Experimental Child Psychology. https://doi.org/10.1016/j.jecp.2022.105421

Philbrook, L.E., Shimizu, M., Erath, S.A., Hinnant, J.B., & El-Sheikh, M. (2021, epub ahead of print). Longitudinal associations between  adolescents' sleep and adjustment:  Respiratory sinus arrhythmia as a moderator. Developmental Psychobiology. https//doi.org/10.1002/dev.22220

Cooley, E., Brown-Iannuzzi, J.L., Lei, R.F., Cipolli, W., & Philbrook, LE. (2021). The policy implications of feeling unprivileged within a privileged group. Journal of Experimental Psychology:  General, 150, 2346-2361. https://doi.org/10.1037/xge0001051

Philbrook, L.E., & Macdonald-Gagnon, G.E.* (2021). Bidirectional relations between sleep and emotional distress in college students:  Loneliness as a moderator. The Journal of Genetic Psychology:  Special Issue on Sleep and Development, 82, 361-373. https://doi.org/10.1080/00221325.2021.1913982

Cooley, E., Brown-Iannuzzi, J.L., Lei, R.F., Philbrook, LE., Cipolli, W., & McKee, S.E. (2021). Investigating the health consequences for White Americans who believe White people are wealthy. Social Psychological and Personality Science, 12, 371-382. https://doi.org/10.1177/1948550620905219

Gillis, B.T., Shimizu, M., Philbrook, L.E., & El-Sheikh, M. (2021). Racial disparities in adolescent sleep duration:  Physical activity as a protective factor. Cultural Diversity and Ethnic Minority Psychology, 27, 118-122. https://doi.org/10.1037/cdp0000422

El-Sheikh, M., Shimizu, M., Philbrook, L.E., Erath, S.A., & Buckhalt, J.A. (2020). Sleep and development in adolescence in the context of socioeconomic disadvantage. Journal of Adolescence, 83, 1-11. https://doi.org/10.1016/j.adolescence.2020.06.006

Philbrook, L.E., Saini, E.K., Fuller-Rowell, T.E., Buckhalt, J.A., & El-Sheikh, M. (2020). Socioeconomic status, chaos, and sleep in adolescence. Journal of Family Psychology, 34, 577-586. https://doi.org/10.1037/fam0000636

Philbrook, L.E., Buckhalt, J.A., & El-Sheikh, M. (2020). Community violence concerns and adolescent sleep:  Physiological regulation and race as moderators. Journal of Sleep Research, 29, e12897. https://doi.org/10.1111/JSR.12897

El-Sheikh, M., Shimizu, M., Erath, S.A., Philbrook, L.E., & Hinnant, J.B. (2019). Dynamic patterns of marital conflict:  Relations to trajectories of adolescent adjustment. Developmental Psychology, 55, 1720-1732. https://doi.org/10.1037/dev0000746

El-Sheikh, M., Philbrook, L.E., Kelly, R.J., Hinnant, J.B., & Buckhalt, J.A. (2019). What does a good night’s sleep mean?  Nonlinear relations between sleep and children’s cognitive functioning and mental health. Sleep, 42, zsz078. https://doi.org/10.1093/sleep/zsz078

Philbrook, L.E., Vaughn, B.E., Lu, T., Krzysik, L., & El-Sheikh, M. (2019). Stability and change in daytime and nighttime sleep in children attending daycare. International Journal of Behavioral Development, 43, 166-172. https://doi.org/10.1177/0165025418798500

Philbrook, L.E., Erath, S.A., Hinnant, J.B., & El-Sheikh, M. (2018). Marital conflict and trajectories of adolescent adjustment:  The role of autonomic nervous system coordination. Developmental Psychology, 54, 1687-1696. https://doi.org/10.1037/dev0000501 

Philbrook, L.E., Shimizu, M., Buckhalt, J.A., & El-Sheikh, M. (2018). Sleepiness as a pathway linking race and socioeconomic status with academic and cognitive outcomes in middle childhood. Sleep Health, 4, 405-412. https://doi.org/10.1016/j.sleh.2018.07.008

Bagley, E.J., Fuller-Rowell, T.E., Saini, E.K., Philbrook, L.E., & El-Sheikh, M. (2018). Neighborhood economic deprivation and social fragmentation:  Associations with children’s sleep quality and duration. Behavioral Sleep Medicine, 16, 542-552. https://doi.org/ 10.1080/15402002.2016.1253011 

Hinnant, J.B., Philbrook, L.E., Erath, S.A., & El-Sheikh, M. (2018). Approaches to modeling the development of physiological stress responsivity. Psychophysiology, 55, e13027. https://doi.org/10.1111/psyp.13027

El-Sheikh, M., Hinnant, J.B., & Philbrook, L.E. (2017). Trajectories of sleep and cardiac-sympathetic activity indexed by pre-ejection period in childhood. Journal of Sleep Research, 26, 578-586. https://doi.org/10.1111/jsr.12491

Philbrook, L.E., Hinnant, J.B., Elmore-Staton, L., Buckhalt, J.A., & El-Sheikh, M. (2017). Sleep and cognitive functioning in middle childhood:  Ethnicity, socioeconomic status, and sex as moderators. Developmental Psychology, 53, 1276-1285.  https://doi.org/10.1037/dev0000319

Cho, S., Philbrook, L.E., Davis, E.L., & Buss, K.A. (2017). Sleep duration and RSA suppression as predictors of internalizing and externalizing behaviors. Developmental Psychobiology, 59, 60-69.  https://doi.org/10.1002/dev.21467

Philbrook, L.E., & Teti, D.M. (2016). Associations between bedtime and nighttime parenting and infant cortisol in the first year. Developmental Psychobiology, 58, 1087-1100. https://doi.org/0.1002/dev.21442

Philbrook, L.E., & El-Sheikh, M. (2016). Associations between neighborhood context, physical activity, and sleep in adolescents. Sleep Health, 2, 205-210. https://doi.org/10.1016/j.sleh.2016.05.008 

Philbrook, L.E., & Teti, D.M. (2016). Bidirectional associations between bedtime parenting and infant sleep: Parenting quality, parenting practices, and their interaction. Journal of Family Psychology, 30, 431-441. https://doi.org/10.1037/fam0000198 

*Denotes a ²Ø¾«¸ó student author

Please also see my .

Visiting Assistant Professor (2017-2018)
Williams College

Postdoctoral Fellow (2015-2017)
Auburn University