Dr. Seth Grossman is a licensed psychologist and the founder and clinical director of the Center for Psychological Fitness. He is also on the clinical faculty at Florida International University’s Herbert Wertheim College of Medicine in Miami. He is currently the President of the Broward Chapter of the Florida Psychological Association.
Seth has always been passionate about improving people’s lives. At the heart of Seth’s treatment philosophy is the knowledge that an individual’s personality serves as the lens for life experience, as well as the psyche’s immune system. Just like the body’s immune system, the personality can be resilient and adaptive in some areas, and possibly short-sighted and inflexible in others, with the latter making the person vulnerable to psychological difficulty. Drawing on his extensive knowledge of adaptive personality and personality disorders, Seth seeks to draw out and empower the personality’s strengths through therapy, collaborative assessment, and biofeedback.
For over a decade, Seth has worked with and been mentored by the world renowned personality theorist, Dr. Theodore Millon. Along with his mentor, Seth was the co-developer of the Personalized Psychotherapy model, and added the “Grossman Facet Scales” to two of the Millon personality tests. Seth has also been a guest lecturer on personality and clinical assessment at universities and professional settings nationally and internationally.
Dr. Blaise Amendolace is a licensed psychologist specializing in the treatment of adults of all ages with conditions such as: depression, anxiety, trauma, abuse survivors, grief, and many other relational problems. He is in the process of achieving certification in Therapeutic Assessment, which is the practice of integrating psychological testing with therapy practice on a deeper, more meaningful level. Blaise ensures that every person he works with is treated as an individual, and views therapy as a journey for both the individual and himself. He is a practitioner of Acceptance and Commitment Therapy (a form of Cognitive-Behavioral Therapy), Interpersonal Therapy, and Existential/Humanistic Therapy.
Dr. Amendolace received his Bachelor’s Degree in Psychology from Florida State University where he graduated with Honors in the Major. He earned his Master’s and Doctoral Degrees in clinical psychology from Florida Institute of Technology in Melbourne, Florida. He completed an APA-accredited internship at Florida International University’s college counseling center, and a postdoctoral residency at Nova Southeastern University’s Center for Assessment and Intervention. Dr. Amendolace is a member of the Florida Psychological Association and the Association for Contextual Behavioral Science.

Dr. Tiffany Aronson is a licensed psychologist specializing in autism spectrum disorder. Dr. Aronson has combined her knowledge and clinical education with her devotion to, and lifelong passion for helping children with autism and their families. She has spent the past several years conducting developmental and psycheducational assessments. Dr. Aronson conducts individual, family and group therapy with children with a range of developmental disabilities, medical conditions, and a myriad of other diagnoses. In addition, she focuses on behavior interventions and parent management training and believes it is important to incorporate the entire family when treating an individual. She has provided consultation and therapy to parents, siblings, and children in an inpatient and outpatient setting. Dr. Aronson’s area of expertise is assessing and diagnosing children birth through six years.
Dr. Aronson completed her doctoral degree in clinical psychology at Nova Southeastern University, her predoctoral internship at Miami Children’s Hospital and her postdoctoral fellowship at Emory University School of Medicine at the Marcus Autism Center, in the Pediatric Neurodevelopmental Center.
Dr. Aronson has chosen to dedicate her life to helping children with autism and their families and looks forward to continuing to do so at The Center for Psychological Fitness.
Dr. Susan Bedrin is a licensed psychologist specializing in the treatment of adults with conditions such as: anxiety, panic attacks, depression, chronic pain/illness, insomnia, grief, and schizophrenia. She conducts therapy using cognitive-behavioral techniques, mindfulness, and biofeedback. One of her major areas of interest is in utilizing biofeedback to assist individuals in learning self-regulation of physiological processes that correspond with various conditions such as anxiety and panic attacks.
Dr. Bedrin received her Bachelor’s Degree in Psychology from Barry University in Miami Shores, Florida where she graduated summa cum laude. She earned her Master’s and Doctoral Degrees in clinical psychology from Nova Southeastern University in Ft. Lauderdale, Florida. During her doctoral training, she was in the Clinical Health Psychology concentration in which training focused on the interaction between an individual’s cognitive, emotional, behavioral, and social functions and physical health. She received her biofeedback training and mentorship from Dr. Doil Montgomery, who has 40 years experience in the field of biofeedback. Dr. Bedrin is a member of Association For Applied Psychophysiology and Biofeedback, Biofeedback Society of Florida, American Psychological Association, and Florida Psychological Association.
Dr. Maribel Del Rio-Roberts is a Licensed Florida Psychologist who conducts treatment sessions in both English and Spanish. She specializes in the assessment and treatment of children, adolescents, and families. Dr. Del Rio-Roberts has extensive experience with psycho-educational and psychological assessment as well as the areas of clinical child psychology, pediatric psychology, infant mental health, and developmental disabilities. With her background and specialized training in the diagnosis of autism, Dr. Del Rio-Roberts has become an invaluable source of information and support for her patients and their families. When appropriate or referred, she also provides Autism diagnostic assessments and report writing using empirically supported measures such as the Autism Diagnostic Observation Schedule (ADOS) and Autism Diagnostic Interview-Revised (ADI-R).
As the principal investigator on two university based grants, Dr. Del Rio-Roberts collaborates with community partners to examine the transitional period of young adults with developmental disabilities. In addition, she is a co-principal investigator on several grants focused on autism assessment, case management training programs, and parental improvement. Dr. Del Rio-Roberts has shared her knowledge on child mental health issues as a consultant on television and radio. She has written several articles related to qualitative research and is the author of The Playful Minds Coping Skills Program: A Treatment for Pediatric Oncology Patients. Dr. Del Rio-Roberts teaches as a Program Professor of Human Services at Nova Southeastern University ’s Fischler School of Education and Human Services. She supervises Psychology trainees (practicum students, interns, postdoctoral residents) at the Center for Assessment and Intervention (CAI). Through her work at the CAI, she has provided assessment and intervention services to survivors of torture from around the world.
Dr. Del Rio-Roberts holds a Bachelor’s Degree in Psychology from Florida International University , a Master’s Degree in Psychology from Carlos Albizu University , and a Psy.D. from Carlos Albizu University. In the profession, she is a member of the American Psychological Association (APA), National Association of School Psychologists, and World Association of Infant Mental Health. She is also credentialed by the National Register of Health Service Providers in Psychology.
Liane Dornheim, PhD is a licensed psychologist with a specialty in neuropsychology and biofeedback. Liane has always been passionate about improving the lives of people with cognitive/ brain conditions across all ages. As an internationally renown clinical neuropsychologist, she specializes in the evaluation of people with cognitive conditions, such as developmental disorders in children, cognitive conditions in adults (due to head injuries or other medical conditions involving the brain), and cognitive changes in the elderly (dementia). A second area of interest is biofeedback training, which she uses to assist people in learning self-regulation of physiological processes that correspond with various conditions such as poor stress management, migraines, tension headaches, impulse control difficulty, and problems with attention and concentration (particularly, Attention-Deficit Hyperactivity Disorder; ADHD).
Liane holds doctoral degrees from the University of Hamburg, Germany and Nova Southeastern University, Ft. Lauderdale, FL. Before coming to Florida, she ran the neuropsychology lab at the Clinic for Neuropediatrics at the University of Luebeck, Germany where she also was an adjunct professor for the Department of Medical Psychology. At Nova Southeastern University, she trained with Charles Golden, Ph.D., one of the most prominent neuropsychologists in the U.S. After her graduation, Liane started to work at Florida International University where she coordinates the neuropsychology and biofeedback labs at Counseling & Psychological Services and teaching as an adjunct professor for the Department of Psychology. Liane has published more than 15 articles and delivered over 20 presentations internationally.
Dr. Terri Mortensen is a licensed clinical psychologist who has extensive experience in treating children, adolescents, adults, and families. She manages and conducts treatment in areas that include childhood trauma and abuse, posttraumatic stress disorder, depression, anxiety, bipolar disorder, anger management, autism, school-related difficulties, behavior disorders, self-esteem, adjustment difficulties, and parenting issues. She has found success in using Applied Behavior Analysis for the treatment of autism in children.
Dr. Mortensen specializes in conducting comprehensive psychological, psychoeducational, and developmental assessments. These specialties are available to children, adolescents, and adults. When selecting a psychological assessment, Dr. Mortensen considers the specific needs of each patient. She carefully chooses from an array of assessments including evaluations of attention, achievement, intelligence, adaptive functioning, personality, developmental delays, and emotional functioning.
Dr. Mortensen enjoys working in a variety of settings including advocacy centers, community mental health centers, schools, university clinics, and residential treatment centers. Within these settings, she has shared her expertise with a culturally and ethically diverse clientele. She provides individual, group, and family therapy to children, adolescents, and adults. Her group therapy focuses on parent training, social skills, trauma recovery, and anger management for children and adolescents.
Dr. Mortensen earned her Bachelor’s Degree in psychology from Iowa State University. She continued her education at the Georgia School of Professional Psychology at Argosy University in Atlanta where she obtained her Master’s and Doctoral Degrees in clinical psychology.
In addition to her current private practice, Dr. Mortensen is a professor and clinical supervisor at Nova Southeastern University’s Fischler School of Education and Human Services. She also teaches as an adjunct professor at the University’s Farquhar College of Arts and Sciences and Center for Psychological Studies. Her affiliations include the American Psychological Association (APA) and the Florida Psychological Association (FPA).
Mateja Petje is a marriage and family therapist and a Professional Life Coach with extensive background in education and working with at-risk families and children. Mateja graduated with Honors from University of Miami and had obtained extensive training as a Professional Life Coach at the Institute for the Life Coach Training that is specifically designed to train therapists to become more effective in assisting people to accomplish their life goals and dreams. Mateja provides a safe healing place for clients to share their concerns with her deep compassion and insight. She has always strived to obtain additional trainings that she incorporates in her daily practice with clients. Some of the additional trainings include training in Clinical Hypnosis; Emotional Freedom Technique (EFT); stress management; energy medicine and other holistic and mind-body approaches utilized in treating emotional and mental illnesses. EFT is a mind-body technique now widely used for treating victims of Post Traumatic Stress Disorder, including war veterans. It is also an effective tool for treating anxiety disorders and traumas. In addition to mind-body healing modalities, Mateja strives to help clients reach effective short term goals based on cognitive-behavioral and solution-focused approaches. Furthermore, she also uses Imago techniques to assist couples in re-creating intimacy and romance in relationships. For more information, visit www.triglavlifecoaching.com.
Kara Williams has been working in the field of psychology since 2004. She received her B.S. in Psychology with a minor in Biology from Wagner College in Staten Island, NY and earned her M.S. in Mental Health Counseling from Florida International University. Prior to joining the Center for Psychological Fitness, she worked with adults with severe and persistent mental illness at Henderson Mental Health Center.
Kara’s personal life has greatly influenced her professional career. She was diagnosed with relapsing remitting Multiple Sclerosis in 2003 and was amazed at the mental and emotional impact this physical disease had on her. The psychological experiences of coping with symptoms and living with a chronic disease have inspired her to help others dealing with similar situations. Kara sees a major goal of counseling as helping clients adapt to the changes in their lives, while continuing to pursue goals at their own pace. This can be applied to all life situations in order to help clients attain the greatest amount of happiness and fulfillment in their lives. Following the personalized psychology perspective, Kara looks at each individual and the influence of one’s self esteem, relationships, and personality in order to work through their current issues.