The 4 Phenotypic Classes of Autism (Nature Genetics, 2025): How Precision Phenotyping Transforms English ABA & Clinical Care in Medellín and Cartagena

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In-Depth Clinical Development

For years, parents were handed a single DSM-5 support level (Level 1, 2, or 3) that failed to explain why one child spoke at 12 months yet suffered severe sensory and emotional dysregulation, while another child had significant early speech delay yet showed calm emotional regulation and affectionate social motivation.

In July 2025, Litman et al. (Nature Genetics) analyzed genomic and clinical data from more than 5,000 participants in the SPARK autism cohort, identifying four distinct phenotypic classes that we systematically map during our 4-Phase Diagnostic Protocol at PsicoKids & Teens®:

  1. Social/Behavioral Challenges with Preserved Early Milestones (~37%): Children, teens, and adults who walked and spoke on time (often missed in toddlerhood) but experience significant social-pragmatic challenges, cognitive rigidity, and high rates of co-occurring ADHD or anxiety.
  2. Mixed ASD with Developmental Delay (~19%): Children with early delays in motor or verbal milestones but low psychiatric dysregulation—who respond dramatically to early high-intensity intervention in our Intensive TRAZOS Program (English ABA & ESDM).
  3. Moderate Challenges with Regulatory Vulnerability (~34%): Profiles marked by sensory hypersensitivity and emotional dysregulation during transitions.
  4. Broadly Affected High-Complexity Phenotype (~10%): Associated with high-impact de novo genetic variants requiring close coordination with our Allied Pediatric Neurologists, medical genetics, and Augmentative and Alternative Communication (AAC).

Academic Background & Official Clinical Accreditations — Dr. Scarlett Del Carmen Rodríguez Rivera

  • Psychologist – Universidad del Sinú Elías Bechara Zainúm, Cartagena Campus (Professional License / Tarjeta Profesional N° 174600, Colegio Colombiano de Psicólogos – Colpsic, Law 1090 of 2006).
  • Specialist in Child and Adolescent Clinical Psychology – Universidad del Sinú Elías Bechara Zainúm, Cartagena Campus.
  • Official Clinical Accreditation in ADOS-2 (Modules 1 to 4) & Toddler Module (T) – Certified by official US Independent Trainer Dr. Noha Minshawi-Patterson (PhD, HSPP, Certified Independent ADOS-2 Trainer) through ADIPA / Virtualys (SENCE Resolution N° 403, Validation ID: IglZH3fuFE).
  • Clinical Training in ADOS and ADI-R for Understanding Infant & Child Communication – Trained directly by Dr. Rhiannon J. Luyster (PhD), co-author of the ADOS-2 diagnostic scale and Certified Independent ADOS-2/ADI-R Trainer, organized by Actualmente.
Certificación clínica en ADOS y ADI-R con la Dra. Rhiannon Luyster - Scarlett Rodríguez
Clinical Training in ADOS and ADI-R with Dr. Rhiannon J. Luyster (PhD), Co-Author of the ADOS-2 Scale.
Acreditación oficial ADOS-2 y Módulo Toddler con Dra. Noha Minshawi - Scarlett Rodríguez
Certificate of Completion: ADOS-2 Clinical Workshop & Toddler’s Training Module — Dr. Noha Minshawi, PhD, HSPP.
Acreditación oficial ADOS-2 y Módulo Toddler con Dra. Noha Minshawi - Scarlett Rodríguez
Official ADOS-2 Accreditation & Toddler Module Training (24 hours) — ADIPA / Virtualys & PhD. Noha Minshawi-Patterson.
Diploma de Especialista en Psicología Clínica del Niño y del Adolescente - Universidad del Sinú
Specialist in Child and Adolescent Clinical Psychology — Universidad del Sinú Elías Bechara Zainúm.
Título Profesional en Psicología - Scarlett Rodríguez - Universidad del Sinú
Licensed Psychologist Degree — Universidad del Sinú Elías Bechara Zainúm.
Tarjeta Profesional No 174600 Colegio Colombiano de Psicólogos - Scarlett Rodríguez
Professional Psychologist License N° 174600 — Colegio Colombiano de Psicólogos (Colpsic, Law 1090 of 2006).

Institutional Contact & Direct Booking (Canonical NAP)

PsicoKids & Teens® is registered in Colombia (SIC Resolution N° 22728) with exclusive clinics in Cartagena (Casa Scarlett, Los Corales) and Medellín (Torre Almagrán, El Poblado), and has no links with any other IPS in Cartagena.

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