New study from Constructor University closes critical gap in autism therapy for children

Families of children with Autism Spectrum Disorder (ASD) often face an immense daily burden due to a combination of severe food selectivity, motor impairments, sensory dysregulation, and social challenges. In clinical practice, however, these deeply interconnected symptoms are typically treated separately—a fragmented approach that may fail to address the child’s developmental needs as a whole. The newly developed "Schmetterling" (Butterfly) Program, designed by Dr. Sofya Bajaa, seeks to close this critical gap through a sequential and integrative therapeutic model for children with ASD. A recent pilot study published in the International Journal of Developmental Science provides promising initial evidence for the success of this integrative approach.

Unlike traditional interventions that often focus on isolated symptoms, the Schmetterling Program follows a structured therapeutic pathway in which treatment progresses step by step. The intervention begins with behavioral and nutritional regulation—particularly severe selective eating through the Schmetterling-NBI (Nutritional Behavior Intervention) Program—as the first therapeutic phase, followed by movement therapy to support motor, sensory, cognitive, and physiological development. The model is designed on the principle that targeted changes early in treatment may trigger broader developmental progress over time.  

Inspired by the concept of the “butterfly effect,” the Schmetterling Program proposes that small, precisely targeted therapeutic interventions at the beginning of treatment can initiate meaningful developmental improvements across multiple domains. Designed for clinical application, the broader framework integrates nine complementary therapeutic methods, individually adapted to the needs of each child.  

The recently published study supports the integrative concept and examines one important phase of the Schmetterling Program: movement therapy following behavioral intervention.

The Study Design: A Simplified Two-Step Protocol

For experimental feasibility, the study focused on a specific component of movement therapy. Researchers implemented a simplified two-step intervention with two five-year-old boys over a seven-week period. First, children participated in short therapeutic running sessions to stimulate physical activation and regulation. This was followed by focused seated activities involving finger painting and 3D pens to support fine motor control and sustained attention. Throughout the intervention, the children’s physiological stress levels were continuously monitored using heart rate variability (HRV) analysis to objectively assess biological regulation during therapy.

The results of the single-subject study (ABA design) demonstrated encouraging therapeutic outcomes:

• Significant Motor Progress: Both children measurably improved their gross and fine motor skills, reaching typical age-appropriate values by the end of the intervention.
• Biological Stress Reduction: HRV analysis demonstrated improved autonomic nervous system regulation and a significantly reduced stress level during training.
• Mitigation of Autism Symptoms: According to standardized diagnostic tests (CARS-2-ST), the severity of symptoms decreased from "severe" to "mild-to-moderate" in both participants.

Sequential Synergy: Why Starting with Eating Behavior Matters

Of particular importance was the outcome of one child who had previously completed the Schmetterling-NBI (Nutritional Behavior Intervention) Program for severe selective eating before participating in the movement intervention. During the movement therapy phase, this child demonstrated stronger developmental progress and greater cognitive improvements compared to the child who had not received prior behavioral intervention.  

These findings provide preliminary evidence supporting the sequential therapeutic structure of the Schmetterling Program, suggesting that behavioral and nutritional regulation may strengthen the effectiveness of later movement-based therapy. The results point toward a potentially important synergistic effect created through the integration of nutritional, behavioral, and motor-based interventions.

The pilot study was conducted as part of Dr. Bajaa's doctoral research at Constructor University. It represents an important first scientific step toward validating the Schmetterling Program as a structured, sequential, and integrative therapeutic model for children with ASD. Larger and more comprehensive follow-up studies are currently being planned to further examine long-term clinical outcomes and expand the scientific evidence for this therapeutic framework.

Learn more about the treatment of severe selective eating in children with ASD within the framework of the Schmetterling Program.