Evidence-based cognitive behavior therapy  


Spectrum CBT focuses on helping people deal with and overcome their mental health struggles. Spectrum CBT was founded by Sarosh Motivala, PhD, a psychologist who specializes in studying and treating obsessive compulsive and anxiety disorders. Our goal is to help people get back on their feet after suffering from the setbacks that intense, debilitating anxiety, depression and/or OCD can trigger.


Sarosh J. Motivala, PhD, Director

Dr. Motivala is a licensed clinical psychologist specializing in CBT and exposure based approaches to treat OCD spectrum and Anxiety spectrum disorders. From 2011-2018 he worked in the UCLA Adult OCD Treatment Program and developed their externship training program for clinical psychology doctoral students and psychiatry residents. He currently serves as the Training Director for the UCLA Adult OCD Treatment Program and holds faculty appointments in UCLA’s Psychiatry Department and Psychology Department. He has presented at the International OCD Foundation (IOCDF) Annual Conference, has served on the IOCDF Task Force Committee and Diversity Council. He conducts community lectures annually through UCLA Health on OCD and anxiety.

He also oversees a longitudinal research project at UCLA looking at long-term follow up in OCD patients who have completed intensive treatment. He was the recipient of a 5 year Clinical Scientist Award from the National Institutes of Health. He received his doctorate from the University of Miami and completed his clinical internship at UCLA and was a postdoctoral fellow at the UCLA Cousins Center for Psychoneuroimmunology. He has authored or co-authored over 30 peer-reviewed journal articles and book chapters, and has presented his work at numerous national and international research conferences. In his clinical work, he integrates traditional behavior therapy with CBT and Acceptance and Commitment Therapy (ACT) and relies heavily on research validated treatments to guide his practice.


Melanie Hudson, PsyD

Melanie R. Hudson, PsyD, is a licensed clinical psychologist specializing in the cognitive behavioral treatment of anxiety and obsessive compulsive spectrum and mood disorders. She has received specialized training in the UCLA Anxiety Disorders clinic, UCLA OCD Intensive Outpatient Program and was recently certified by the IOCDF-Behavior Therapy Training Institute. Dr. Hudson received her doctorate degree in Clinical Psychology from the California School of Professional Psychology in San Francisco and completed her clinical internship at the UCSF-San Francisco General Hospital. Later, she worked as primary therapist at Del Amo Hospital’s National Treatment Center specializing in cognitive behavioral therapy on the Eating Disorders and Trauma Recovery inpatient units.  During this time she gained extensive experience in the treatment of traumatic stress disorders, complex dissociative disorders, anxiety disorders and eating disorders. Next, she became Assistant Clinical Director of Laurel Hill Inn Eating Disorders Treatment Program in Massachusetts, a JCAHO accredited program. Dr. Hudson incorporates CBT, exposure-based treatment and a family systems approach into her work with adolescents and adults.


Allen Liao, PhD

Dr. Allen Liao is a licensed clinical psychologist specializing in research-supported psychological treatments including cognitive behavioral therapy (CBT) and dialectical behavior therapy (DBT) individually tailored for a variety of mental health concerns, with a particular interest in OCD and anxiety disorders. He combines scientific expertise with a collaborative, caring, and genuine approach to treatment. Dr. Liao completed his APA-accredited postdoctoral fellowship in Adult CBT/DBT at Harbor-UCLA Medical Center, and received his Ph.D. in Clinical Psychology from the University of Texas Southwestern Medical Center in Dallas, TX. His research and clinical interests include improving precision treatment and dissemination of evidence-based practices.