Leon Alker is a Chief Clinical Neuropsychologist at St. Franziskus-Hospital in Winterberg and holds a Master’s degree in Biopsychology with a specialization in Experimental and Applied Neuropsychology, awarded with highest distinction (cum laude). He is currently completing a German doctoral degree (Dr. rer. nat.), a science-based doctorate comparable to a PhD, at Philipps-University Marburg. His research focuses on neuropsychological mechanisms within Experimental and Applied Neuropsychology — particularly those that also influence the mental health of gifted and neurodiverse individuals.
Niki De Bondt, Doctor of Education Sciences (PhD), is a researcher in the Department of Training and Education Sciences of the Faculty of Social Sciences at the University of Antwerp (Belgium). Her research focuses on such topics as Bayesian statistical modeling, the educational relevance of Dąbrowski’s Theory of Positive Disintegration, and giftedness. She holds master degrees in the domain of economic sciences and she is a full-time lecturer at Artesis Plantijn University College of Antwerp.
Els De Wit, M.A. is the owner of Talentvol, where she and her team guide exceptionally and profoundly gifted children from toddler age. Els has a Masters degree in languages and a certificate of Philosophy with Children and Teenagers. Talentvol is the first in Belgium to guide EPG children and is active all over Flanders. Here, exceptionally and profoundly gifted children have a place to be themselves and find others like them. Els De Wit wrote, “Slapende Leeuwen” the first Dutch book about EPG children. The institute is now spreading its wings and going international.
Lorraine Bouchard, Ed.D. – While earning her Ed.D. in Curriculum and Instruction in Gifted Education from the University of Houston, Lorraine received NAGC’s Hollingworth Award for her dissertation in which she developed the ElemenOE2, an instrument for measuring Dabrowskian overexcitabilities in elementary students for the purpose of identifying gifted learners.
Keri M. Guilbault, Ed.D. is an associate professor, director of the online Doctor of Education program, and principal investigator of the Center for Talented Youth Study of Exceptional Talent at Johns Hopkins University. She received the 2019 Early Leader Award from the National Association for Gifted Children (NAGC) and served three terms on the NAGC Board of Directors. Dr. Guilbault currently serves as a U.S. Delegate to the World Council for Gifted and Talented Children. Her research focuses on academic acceleration, leadership of gifted and advanced academic programs, and the social-emotional development and needs of the highly to profoundly gifted.
Sabrina Henning, M.Sc. completed a Master of Science degree at the University of Liverpool during a stay abroad. Initially trained as a physiotherapist, she earned a Bachelor’s degree in Psychology from the University of Hamburg. The discovery of her daughter’s giftedness led Sabrina to shift her professional focus from health psychology to the field of giftedness psychology. Sabrina pursued further training, including advanced studies in intelligence diagnostics with Dr. Torsten Joel.
Rebecca (Becki) M. Johnson, Ph.D. is a postdoctoral research associate at Purdue University. She earned a Ph.D. in Educational Psychology, Gifted and Talented Education from the University of North Texas. Her experience as an educator and parent has led to research interests including social-emotional well-being of gifted individuals, parenting in the context of high/profound giftedness, creativity, and access to academic opportunities for gifted students from diverse backgrounds.
Marianne Kuzujanakis, M.D., M.P.H. is a pediatrician who holds a Master in Public Health in Clinical Effectiveness through Harvard School of Public Health, received as part of a Pediatric Health Services Research fellowship through Boston Children’s Hospital. Dr. Kuzujanakis is co-founder of the SENG Misdiagnosis Initiative, is the chair of the SENG Professional Advisory Committee, and is a longtime homeschool educator. She is also a co-author of the recently released Misdiagnosis & Dual Diagnosis of Gifted Children And Adults [2nd Edition].
Krystyna C. Laycraft, M.Sc, Ph.D. holds a Master of Science from the University of Warsaw and a Ph.D. in Education from the University of Calgary. She is a Certified Coach Practitioner and Professional Member of Canadian Counselling of Psychotherapy Association. She brings both practical and academic knowledge to her coaching. Her expertise is based on a 30+ year career working with adolescents and adults in Poland and Canada. Krystyna delivers lectures, seminars, and workshops that include topics related to emotional needs of adolescents and adults, the role of creativity in their psychological development and the process of decision-making.
Andy Mahoney is the founder of the Center for Identity Potential and Identity Potential, Inc. He is a recognized expert and pioneer in the field of counseling the gifted and talented. His expertise spans nearly 30 years as a counselor, family therapist, and trainer of mental health professionals. Additionally, Andy has focused his emphasis on identity development to create The Fit, a software program the center utilizes in the context of counseling, career development, personal growth and business development.
Jessica Potts, Ph.D. holds a doctorate from the University of Nevada, Reno in Secondary Education, with an emphasis on gifted education and online learning. Her MA is in English Literature, with an emphasis on the English Renaissance. She has spent most of her teaching career at The Davidson Academy of Nevada, a public school for profoundly gifted students. Currently, she teaches online courses for the Davidson Academy, develops online content, and teaches graduate courses on gifted education at UNR.
Jennifer Harvey Sallin, M.A., L.L.P.C., N.C.C. Jennifer Harvey Sallin, MA, LLPC, NCC is a psychologist and coach who dedicates her work to supporting the gifted and intense. She coaches and mentors highly, exceptionally and profoundly gifted individuals toward mastery, helping them to understand their unique mind and channel their uncommon potential and intensity with self-awareness and purpose. She is co-founder of Rediscovering Yourself, and founder of InterGifted.com.
Marisa Soto-Harrison, Ed.D. graduated with an Education Doctorate in Curriculum and Instruction with a specialization in Gifted and Talented Education from the Department of Teaching and Learning Sciences, Morgridge College of Education, University of Denver. Currently, Dr. Soto-Harrison serves as a teacher, consultant, and advocate, providing educational assessments and support to families in California, Florida and Nevada. Dr. Soto-Harrison is the co-founder of Sierra Gifted Educational Services and lives in Northern California with her family.
Willard White, Ph.D. (1936-2025) is a teacher-trainer in gifted education, a consultant to school districts in program development and developing curricula for gifted and advanced students, a presenter at state and national conferences, and an Instructor at Florida Atlantic University. His career in education in Michigan included science teacher, teacher of gifted students, He is the author of America’s First Gifted Program: Hollingworth and the Speyer School Experiment.

Laurence Vaivre Douret, Ph.D. is Professor in Psychology and Neuropsychology of Development at the University of Paris Descartes, Sorbonne Paris City, France.
