Dr. Parham Horn, Ph.D.

 

I am a licensed counseling psychologist specializing in the treatment of obsessive-compulsive disorder (OCD), anxiety, body-focused repetitive behaviors (BFRBs), tic disorders, depression, insomnia, and related concerns across the lifespan. Using evidence-based treatments such as Cognitive Behavioral Therapy (CBT), Exposure and Response Prevention (ERP), and Acceptance and Commitment Therapy (ACT), I work collaboratively with clients to create lasting change so they can live meaningful, values-driven lives. I tailor care to each person, taking into account the cultural and contextual factors impacting them. Making changes takes courage, which is why I pair a structured, goal-focused approach with warmth and compassion to ensure clients feel both supported and challenged.

Before joining Atlanta CBT, I worked and trained with children, adolescents, and adults across a range of settings, including inpatient and outpatient hospital programs, a partial hospitalization program, and private practice. I completed an advanced postdoctoral fellowship in the treatment of OCD and related disorders, and I have pursued specialized training in CBT, ACT, and Dialectical Behavior Therapy (DBT), the Comprehensive Behavioral (ComB) model for BFRBs, treatment for selective mutism, and SPACE (Supportive Parenting for Anxious Childhood Emotions).

I am fully licensed as a psychologist in GA and NY. I currently provide services via telehealth and in person in our Inman Park office.

MY AVAILABILITY

I offer in person appointments at our Inman Park, Atlanta location or telehealth sessions from 9:30am – 7:30pm M-Th, 9:30-2:00pm Fridays.

Here are more details about my professional training and experiences that might be of interest to you…

ACADEMIC TRAINING:

Postdoctoral Fellowship in OCD and Related Disorders
The Reeds Center

New York, NY

Predoctoral Internship
Trinitas Regional Medical Center
Elizabeth, NJ

Ph.D., Counseling Psychology
New York University
New York, NY

M.Phil., Psychology
New York University
New York, NY

 B.A., Psychology
Georgetown University
Washington, DC

PREVIOUS APPOINTMENTS:

Assistant Professor of Pediatrics, Emory University School of Medicine and Children’s Hospital of Atlanta, Atlanta, GA, 2025-2026

Senior Manager, The Reeds Center, New York, NY, 2023-2025

Practice Manager, The Reeds Center, New York, NY, 2022-2023

Staff Psychologist, The Reeds Center, New York, NY, 2021-2025

Adjunct Instructor, New York University, New York, NY, 2017-2022

PROFESSIONAL ASSOCIATIONS & PROFESSIONAL SERVICE:

American Psychological Association (APA)
Society of Clinical Child and Adolescent Psychology (APA Division 53)
International OCD Foundation (IOCDF)
Association for Behavioral and Cognitive Therapies (ABCT)
Association for Contextual Behavioral Science (ACBS)
Georgia Psychological Association (GPA)

SCHOLARLY PUBLICATIONS AND PRESENTATIONS

PEER REVIEWED PUBLICATIONS

Chacko, A., Scavenius, C., & Horn, E. P. (2021). ADHD symptoms do not moderate outcomes to a community-based behavioral parent training model delivered in the voluntary sector in Denmark. Journal of Child and Family Studies, 30(1), 51-64.

Horn, E. P., McClowry, S. G., O’Connor, E. E., & McCormick, M. P. (2021). Trajectories of the teacher-child relationship across kindergarten and first grade: The influence of child gender and behavior problems. Early Childhood Research Quarterly, 55, 107-118.

McCormick, M. P., Neuhaus, R., O’Connor, E. E., White, Horn, E. P., H. S., Harding, S.,

Cappella, E., & McClowry, S. G. (2021). Long-term effects of social-emotional learning on academic skills: Evidence from a randomized trial of INSIGHTS. Journal of Research on Educational Effectiveness, 14(1), 1-27.

McCormick, M. P., White, H.S., Horn, E.P., Lacks, R., O’Connor, E.E., Cappella, E., & McClowry, S.G. (2018). Supporting shy children and classrooms with social-emotional learning: Impacts on instructional support and early academic skills. Early Education and Development, 29, 691-715.

McCormick, M. P., O’Connor, E. E., & Horn, E. P. (2017). Can teacher-child relationships alter the effects of early socioeconomic status on achievement in middle childhood? Journal of School Psychology, 64, 76-92.

Suwalsky, J. T. D., Padilla, C. M., Yuen, C. X., Horn, E. P., Bradley, A. L., Putnick, D. L., & Bornstein, M. H. (2015). Adoptive and nonadoptive mother-child behavioral interaction: A comparative study at 4 years of age. Adoption Quarterly, 18(3), 196-216.

OTHER PUBLICATIONS

Chacko, A., Granski, M., Horn, E. P., Levy, M., Dahl, V. M., Lacks, R., & Ramakrishnan, A. (2018). Prevention. In Martel, M.M. (Ed.), Disruptive, Impulse-Control, and Conduct

Disorders: Features, Assessment, Pathways, and Intervention. Academic Press.

O’Connor, E. E., Horn, E. P., White, H. I. (2018). Shyness: Helping Handout for School and Home. Supporting Students at School and Home. The National Association of School Psychologists.

Fine, J. G., Marks, D. J., Wexler, D., Dahl, V. M., & Horn, E. P. (2018). ADHD across the

lifespan. In Donders, J. & Hunter, S. J. (Ed.), Neuropsychological Conditions Across the

Lifespan.. New York, NY: Cambridge University Press.

McClowry, S. G., Horn, E. P., & Lacks, R. S. (2016). Cultural differences in discipline. In E. Braaten, and B. Willoughby (Eds), The SAGE Encyclopedia of Intellectual and Developmental Disorders. Thousand Oaks, CA: Sage Publications.

PRESENTATIONS

Horn, E. P., O’Connor, E. E., McCormick, M. P., & McClowry, S. G. (2019, March). Early teacher-child relationship and middle school functioning: A longitudinal study of urban, low-income youth. Poster presented at the 2019 Society for Research on Educational Effectiveness Annual Meeting. Washington, DC.

Horn, E. P. (2019, February). Cognitive behavioral treatments for children. Invited guest lecturer for Children’s Learning: Theory and Research class, New York University, New York, NY.

Horn, E. P., Neuhaus, R., McCormick, M. P., O’Connor, E. E., & McClowry, S. G. (2019, March). Social-emotional learning and academic achievement in middle school: Implications for early programming. Poster presented at the 2019 Society for Research on Educational Effectiveness Annual Meeting. Washington, DC.

Horn, E. P., Vardanian, M., Scavenius, C., & Chacko, A. (2018, November). ADHD symptoms do not moderate outcomes to a community-based behavioral parent training model delivered in the voluntary sector in Denmark. Poster presented at the 2018 Association for Behavioral and Cognitive Therapies. Washington, DC.

Horn, E. P., Li, J., Lacks, R., & McClowry, S. G. (2018). Effortful control and academic achievement: Results from a social-emotional intervention targeting, urban, low-income students. Paper presented at the 2018 American Educational Research Association Meeting. New York, NY.

McCormick, M. P., Horn, E. P., O’Connor, E. E., Cappella, E., & McClowry, S. G. (2018). Social-emotional earning, special education referral, and grade retention from kindergarten through fifth grade: Long-term effects of early intervention on policy-relevant outcomes. Paper presented at the 2018 Society for Research on Educational Effectiveness Meeting. Washington, DC.

Horn, E. P., McClowry, S. G., O’Connor, E. E., & McCormick, M. P. (2017, April). Trajectories of the teacher-child relationship across kindergarten and first grade: The influence of child gender and behavior problems. Poster presented at the 2017 Society for Research in Child Development Biennial Meeting. Austin, TX.

Horn, E. P., Mancini, P., Castells, N., Mattera, S. K., & Morris, P. (2015, April). The stability of CLASS scores across academic school years in a large-scale randomized controlled trial. Poster presented at the 2015 Society for Research in Child Development Biennial Meeting. Philadelphia, PA.

Padilla, C. M., Mahler, A. R., Horn, E. P., Putnick, D. L., & Bornstein, M. H. (2013, May). Maternal parenting cognitions and behavior: Similarities and discrepancies with first and second children. Poster presented at the National Institutes of Health Spring Research Festival. Bethesda, MD.

Horn, E. P., Padilla, C. M., Manian, N., Putnick, D. L., & Bornstein, M. H. (2012, October). The effects of maternal depression on children’s language development. Poster presented at 2012 National Institutes of Health Research Festival. Bethesda, MD.

Padilla, C. M., Horn, E. P., Putnick, D. L., Manian, N., & Bornstein, M. H. (2012, October). Gender differences and comorbidity of child behavioral adjustment and temperament in families with and without depressed mothers. Poster presented at 2012 National Institutes of Health Research Festival. Bethesda, MD.

Barr, R., Horn, E. P., Oot, E., Fenstermacher, S. K., Zachary, C., Ramirez, J., Bengoechea, P., Benasich, A., Choudhury, N., & Linebarger, D. (2012, October). Factors associated with poor rapid auditory processing in low income minority families. Presented at the 45th Annual Meeting of the International Society for Developmental Psychobiology, New Orleans, LA.

Horn, E. P., Padilla, C. M., Manian, N., Putnick, D. L., & Bornstein, M. H. (2012, April). Difficult temperament predicts later behavioral problems for children with depressed mothers. Poster presented at the National Institutes of Health Research Festival. Bethesda, MD.

Padilla, C. M., Horn, E. P., Putnick, D. L., Manian, N., & Bornstein, M. H. (2012, April). Continuity, stability, and mother-father agreement about child behavioral adjustment in families with and without depressed mothers. Poster presented at the National Institutes of Health Research Festival. Bethesda, MD.

Manian, N., Horn, E. P., & Bornstein, M. H. (2012, January). Postpartum depression in immigrant and U.S.-born mothers: Impact on family functioning and child outcomes. Presentation given at the Society for Social Work and Research. Washington, DC.

Horn, E. P., Linebarger, D., Fenstermacher, S. K., Benasich, A. A., Choudhury, N., & Barr, R. (2011, May). Preliminary findings on factors associated with rapid auditory processing in 6-month-olds: Risk and potential buffering factors. Poster presented at the 23rd Annual Convention of the Association for Psychological Science. Washington, DC.

Barr, R., Horn, E. P., Fenstermacher, S. K., Linebarger, D., Alvarez, A., Martire, J., Sauerhoff, E., Benasich, A. A., & Choudhury, N. (2011, March). The influence of environmental and familial factors on rapid auditory processing in 6-month-olds. Presented at the 74th Annual Meeting of the Eastern Psychological Association. Cambridge, MA.

Dr. Parham Horn, Ph.D., provides services to Atlanta CBT on a contract basis.