Developmental high-risk criteria for severe mental illness: a neurodevelopmental framework for premorbid detection - Report - MDSpire

Developmental high-risk criteria for severe mental illness: a neurodevelopmental framework for premorbid detection

  • By

  • Michele Poletti

  • Antonio Preti

  • Andrea Raballo

  • June 23, 2026

  • 0 min

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Criteria for Identifying High Developmental Risk of Severe Mental Illness

Background

Severe mental illnesses, such as schizophrenia and bipolar disorder, are increasingly understood as having neurodevelopmental origins. Early identification of at-risk individuals can facilitate timely interventions, potentially altering the trajectory of these conditions. Current clinical models often focus narrowly on symptomatic prodromes, neglecting broader developmental vulnerabilities that may signal risk. [Citations needed]

Data Highlights

DomainScore
Presumed Genetic Risk0/1/2
Prenatal and Perinatal Hazards0/1/2
Adverse Childhood Experiences0/1/2
Severity of Neurodevelopmental Expressivity0/1/2
Sociodemographic Vulnerability0/1/2

Key Findings

  • SMIs often evolve gradually through early developmental alterations.
  • Childhood motor clumsiness and neurological soft signs are associated with later psychotic outcomes.
  • Attention deficit/hyperactivity disorder is a precursor to later SMIs.
  • A substantial proportion of future psychotic cases emerge from individuals who attended child mental health services.
  • The Developmental High-Risk for Severe Mental Illness (DHR-SMI) score ranges from 0 to 10, capturing various risk factors.

Clinical Implications

Recognizing early neurodevelopmental signs can aid in identifying individuals at high risk for severe mental illnesses.

Conclusion

The proposed DHR-SMI criteria aim to improve early detection of individuals at risk for severe mental illnesses.

Related Resources & Content

  1. Frontiers in Psychiatry, 2026 -- Predicting Ordinal Clinical Outcomes in At-Risk Mental States: A Multimodal Approach
  2. JAMA Network Open -- Innovation to Improve Detection of Early Developmental and Behavioral Concerns
  3. BMC Psychiatry (Springer) -- Caregiver psychiatric symptoms, assessment delay, and access to supports for children with neurodevelopmental conditions
  4. Clinical High-Risk for Psychosis (CHR-P) circa 2024: Synoptic analysis and synthesis of contemporary treatment guidelines - ScienceDirect
  5. BMC Psychiatry (Springer) — Thorough clinical child psychiatric diagnostic evaluation and validation of the Autism- Tics, ADHD and other comorbidities inventory (A-TAC) in a population-based sample of 9-year-olds
  6. On the proportion of patients who experience a prodrome prior to psychosis onset: A systematic review and meta-analysis
  7. Specificity of environmental risk factors for schizophrenia, bipolar disorders, and depressive disorders – umbrella review
  8. Clinical High-Risk for Psychosis (CHR-P) circa 2024: Synoptic analysis and synthesis of contemporary treatment guidelines - ScienceDirect

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