Visuospatial processing and fine motor function among 7-years old Guadeloupe children pre- and postnatally exposed to the organochlorine pesticide chlordecone

•Chlordecone, an organochlorine pesticide, is a known endocrine disrupter.•Today it still contaminates food products and the population of French West Indies.•Prenatal chlordecone exposure was associated with child subtle hand tremors.•Childhood exposure was associated with poorer visual processing and fine movement.•Effects on fine motor function confirm reports in early childhood in this cohort.