ISF Neurofeedback Training and Provider Education

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Who We Are

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Our Mission

Mark Lewellyn Smith, LCSW, BCN, QEEG-D

Founder / Owner

Mark Llewellyn Smith is the owner and Clinical Director of Neurofeedback Services of New York. He is a licensed clinical social worker, whose early career was established in the world of work, providing clinical services to the nurses, doctors, and staff of NYU Medical Center and Downtown Hospital in New York City.

Due to his proximity to the Twin Towers at Downtown Hospital, Mark spent many years following 9/11 working with first responders and their families. He developed psychophysiological interventions that included neurofeedback and biofeedback for those with PTSD and CPTSD. That experience put him on the path to developing a trauma focus in his practice.

In private practice since 2000, Mark is a leading developer, teacher, and clinician of neurofeedback interventions for a variety of disorders. Infraslow Fluctuation (ISF) training, now a primary intervention in EEG biofeedback therapy, was developed by Mark from his experience training the “Ultradian” rhythms: the lowest energy the brain produces. This type of neurofeedback has had a profound, positive impact on the lives of his clients, as well as, the clients of the hundreds of therapists he has taught in the last decade.

Mark was also an early adopter of sLORETA neurofeedback training. This experience, memorialized in publications, led to the development of a 19- channel ISF intervention and the research collaboration with Otago University and Dirk De Ridder, MD, PhD.

He was among the first to use Z-score training in clinical practice. As an early adopter and developer of Z-score training, he worked closely with several manufacturers in the neurofeedback community to develop Z-score neurofeedback interventions for a host of clinical presentations.

QEEG or brain mapping is an integral part of Mark’s approach to psychophysiology. He has taught QEEG in Europe, Asia, on the continent of Africa, and throughout the United States. He has been a mentor to scores of clinicians who seek Diplomate status in this analytic process.

Dirk De Ridder, MD, PhD

Professor of Neurosurgery at the Dunedin School of Medicine, University of Otago in New Zealand

Dirk De Ridder, MD, PhD, is professor of Neurosurgery at the Dunedin School of Medicine, University of Otago in New Zealand. His main interest is the understanding and treatment of phantom perceptions (sound, pain), especially by use of functional imaging navigated non-invasive (TMS, tDCS, tACS, tRNS, LORETA neurofeedback) and invasive (implants) neuromodulation techniques.

His main interest is to understand commonalities in different diseases such as in thalamocortical dysrhythmias (pain, tinnitus, Parkinson’s disease, depression, slow wave epilepsy) and reward deficiency syndromes (addiction, OCD, Personality disorders, etc.)

A third pillar of his research relates to the neurobiological underpinnings of the ‘self” and ‘other’ in the brain, as it relates to social interactions, philosophy and religion.

He has developed “burst” and “noise” stimulation as novel stimulation designs for implants, and is working on other stimulation designs.

He has published 37 book chapters, co-edited the Textbook of Tinnitus, and has authored or co-authored 270 articles. He is reviewer for 85 scientific journals.

Sharie Woelke (OT reg. (Ont.), RP, BCN)

Therapist and Registered Psychotherapist

Sharie Woelke is an occupational therapist and registered psychotherapist who is board certified in neurofeedback through the Biofeedback Certification International Alliance. She is the clinical director of Renew Neurotherapy in Ontario, Canada.

Sharie has clinical experience working with veterans and civilians with post-traumatic stress disorder (PTSD), anxiety, depression, brain injury, attention deficit hyperactivity disorder, learning disorders, chronic pain, stroke and more.

Sharie has provided both community and hospital-based intervention. She incorporates multiple intervention modalities and aims to provide clients with a holistic and supportive approach.

Sharie has written a series of e-books for brain injury rehabilitation service providers and taught Traumatic Brain Injury, Post Concussive Syndrome and Neuroplasticity: Tools and Strategies to Promote Recovery workshop throughout the United States from 2015 – 2018. Sharie currently co-teaches Foundations in Brain Injury Rehabilitation: Mild to Moderate Severity through the Canadian Association of Occupational Therapists.

Sharie is a member of ISF Associates, a group led by Mark Smith (developer of ISF Neurofeedback) dedicated to providing quality education, tools and resources and high-quality research in the field of neurofeedback. She is currently studying her Masters in Distance Education and develops tools, resources, education, and provides coordination support for the ISF community.

Karlien Balt

BSc Human Physiology, Genetics & Psychology & Specialized in Neurophysiology (Hons) (MSc)

Karlien Balt studied BSc Human Physiology, Genetics and Psychology and specialized in Neurophysiology (Hons)(MSc). She has trained with the Biofeedback Certification International Alliance (BCIA) in EEG Biofeedback, Biofeedback, QEEG and ISF. She is Board Certified in QEEG. Karlien has presented at workshops and conferences and has a special interest in ISF training.

She has published articles on ISF and continues advance research in this field. Understanding the role of ISF in the nervous system has progressed her work into the field of trauma. She is currently involved in the development of programs with the Department of Social Services in South Africa and working with children and foster parents in this regard. She is passionate about growing the field of neurofeedback (specifically ISF) and making it accessible and affordable to more people.

Karlien is an instructor and mentor with ISF Associates.

Tanya Morosoli, MSc, BCN

Neuropsychologist

Tanya Morosoli obtained her Degree in Psychology from the University of Geneva, Switzerland, a Master’s Degree in Neuroscience from Barcelona University, Spain and a Master’s Degree in Clinical Neuropsychology from the European University Miguel de Cervantes.

She did a postgraduate intensive course on Principles and Practice of Clinical Research (PPCR), Harvard Medical School in 2013 and was invited to collaborate as Teaching Assistant (TA) and Senior TA for 5 years in this Clinical Research educational program, currently offered by Harvard School of Public Health. She was Mexico City Site Director of this course (2019-2021).

Founder and Director of a Neuropsychology Clinic, she leads a multidisciplinary team who provide comprehensive assessment and treatment. She has used neurofeedback for the past 20 years as part of a comprehensive approach and recently started a practice in Switzerland. She has been Board Certified in Neurofeedback since 2008; she is part of the faculty that teaches a Neurofeedback BCIA didactic course in Spanish and has provided mentoring towards BCIA certification.

She was founder member and Past President of the Mexican Society for Bio and Neurofeedback. She is founder and board member of the Biofeedback Certificate International Alliance-Hispanoamerica (BCIA-H) and has served on ISNR board as International Member-at-large for more than two years. In 2021, she was awarded the ISNR Presidential Award of Merit and the The Joseph and Ann Marie Horvat Distinguished Service Award for accomplishing international collaboration. She is associate editor for Neuroregulation.

Divya Adhia, MPthy, PhD

Researcher

Dr Divya Adhia, MPthy, PhD, is a Research Fellow at the Department of Surgical Sciences, Dunedin School of Medicine, University of Otago in New Zealand. She is an early career researcher with specific interests in the identification of cortical targets using electrical activity of the brain (EEG) and its treatment using neurofeedback and non-invasive neuromodulation [transcranial electrical and magnetic stimulation (TES,TMS)] techniques in a variety of disorders with thalamocortical dysrhythmia (Chronic Pain, Alzheimer’s disease, Stroke, Tinnitus, and Depression, Reward-Deficiency syndromes).

Dr Adhia has attracted several internal, and external funding (~1m) in the area and has been awarded the HRC Emerging Researcher First Grant for exploring novel non-invasive neuromodulation paradigms for treatment of chronic low back pain.

She has published 3 book chapters, and has authored or co-authored ~30 articles, many of which are particularly focused on evaluating novel neuromodulation techniques for improving clinical outcomes in chronic conditions.

We want to hear from you!

Our goal is to help you meet your educational needs. Please reach out to let us know how we can best support you! Email us at info@isfassociates.com

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