Perception and action are closely intertwined in humans.From a very early age, emotional perception and posturalbehavior play a key role in social interactions, especially in face-to-face communication.Emotions, more than just providing information about our emotional states and those ofothers, also impact our behavioral attitudes, which include approach, avoidance, and free-zing responses. This coupling between emotional perception and action tendencies hasrecently begun to be codified with fine sensorimotor and postural metrics on whole body reactions (e.g., micromovements, postural oscillations, center of pressure displacements).Furthermore, these relationships may be modulated based on individual differences, suchas personality traits or specific disorders. This review article seeks to shed light on the reciprocal relationships between emotions and posture in children and adults with good healthor presenting various disorders combining sensorimotor and socio-emotional impairments,with varying degrees of severity. We present here the results of studies in neurodevelop-mental pathologies where socio-emotional and postural difficulties may co-exist, such asautism spectrum disorders, developmental coordination disorders, and in children withcerebellar pathologies. The coexistence of such difficulties in different pathologies under-lines the importance of precisely assessing them in clinical practice in order to improvepatient diagnosis and care