Arnold_Eugene_724x840Professor Emeritus

College of Medicine
Department of Psychiatry and Behavioral Health
Nisonger Center
Nisonger Dual Diagnosis Clinic


General Research

Dr. Arnold’s research focuses on new drug development and alternative and complementary treatments for autism and ADHD. His research includes aromatic essential oil therapy for autism spectrum disorder, omega-3 fatty acids for mood disorders, neurofeedback for ADHD, nutrition and mental health, and clinical trials.

Clinical Interests

Aromatic essential oil therapy and autism spectrum disorder, omega-3 fatty acids and mood disorders, neurofeedback and ADHD, nutrition and mental health, clinical trials, new drug development, alternative and complementary treatments.

PubMed articles

Research Techniques

  • Clinical trials

Current Research Projects

  • International Collaborative ADHD Neurofeedback (ICAN) study
  • Essential Oils for Quality of Life in Autism
  • New long-acting medication for ADHD

Active Funding


Selected Publications

  • 260 articles
  • 70 chapters
  • 9 books

Current Staff

  • Jill Hollway, PhD, research scientist
  • Jessica Hollway, MD, child/adolescent psychiatrist
  • Craig Williams, MD, child/adolescent psychiatrist
  • Rachel Bergman, coordinator
  • Taylor Wong, coordinator

Education and Training

MD: The Ohio State University College of Medicine, Summa cum laude
MEd: Johns Hopkins Evening College
Internship: University of Oregon
Residency: Psychiatry, Johns Hopkins University
Residency: Child Psychiatry, Johns Hopkins University 

Editorial Activities

  • JAACAP - Reviewer
  • J. Attn. Disorders - Reviewer
  • J. Child & Adolescent Psychopharmacology - Reviewer
  • JAMA Psychiatry - Reviewer

Honors and News

  • C.V. Mosby Book Award, 1963
  • Invited to join Phi Delta Kappa, professional education fraternity, 1969
  • Initiated into Phi Kappa Phi Honor Society, 1974
  • Listed in Marquis Who's Who; 1988 Listed in International Who's Who in Medicine, 1985
  • Psychiatrist of the Year, Psychiatric Society of Central Ohio,1992
  • NIH Director's Award for work on NIMH Multimodal Treatment Study of Children with ADHD, 1996
  • Award of Excellence as researcher, teacher, clinician & administrator from Child and Adolescent Psychiatrists of Central Ohio, 2002
  • CHADD Hall of Fame, 2014
  • Research Award Ohio Psychiatric Physicians Research Foundation, 2015

Clinical profile