Termination of Parental Rights

Childhood neglect — the chronic absence of expected cognitive, linguistic, social, and caregiving input — is associated with substantial, often lasting deficits in cognitive ability, executive function, and brain development; the deprivation pathway is distinct from the threat pathway of abuse, and randomized evidence from early-deprivation studies supports a causal contribution.

Childhood sexual abuse is associated with a broad, dose-responsive elevation in long-term psychiatric and physical-health risk — depression, anxiety, PTSD, suicidality, and substance dependence among them — and the strongest designs (umbrella reviews, longitudinal cohorts, discordant-twin studies) indicate the association is at least partly causal and not merely a product of shared family confounding; nonetheless many survivors show resilience and no measurable lasting impairment.

Household food insecurity is associated with poorer academic and cognitive functioning and increased behavioral and mental-health risk in children; severity, persistence, and transitions in food security may matter.

For young children deprived of parental care, placement into stable, high-quality family (foster) care rather than institutional care produces lasting gains in cognitive ability, attachment security, and mental health; benefits are larger with earlier placement and greater placement stability, although some deficits persist.

Maternal smoking during pregnancy is associated with some adverse neurodevelopmental outcomes, including developmental coordination, small average IQ differences, ADHD diagnoses, and selected brain or behavioral measures, but causality is outcome-specific; genetically sensitive research does not support a clear causal prenatal-smoking-to-ADHD relationship.

Randomized human evidence shows that severe early deprivation of stable, responsive caregiving can cause lasting cognitive and psychiatric harm, and that early placement into stable, high-quality family care can substantially improve outcomes.