Neglect is the most prevalent form of maltreatment, but it has been understudied relative to abuse. Additionally, developmental outcomes associated with early maternal withdrawal have been understudied relative to outcomes associated with harsh treatment. However, a large body of studies on rodents has documented the causal effect of low maternal care on altered stress responses in offspring. Other evidence from human studies links early maternal withdrawal to clinical levels of neglect. Studies of both rodents and humans suggest that, rather than the aversive responses (e.g., fight, flight, freeze) modeled in relation to threat of attack or harsh treatment, early maternal withdrawal is associated with increased calling and contact seeking to mothers. Moreover, two longitudinal studies indicate that early maternal withdrawal, but not negative-intrusive interaction, contributes to adolescent borderline psychopathology. The field needs prospective studies with well-operationalized constructs of maternal withdrawal to delineate the distinct developmental pathways that may be associated with neglect.