Early deprivation/neglect
While the influence of less than optimal parenting practices on
ADHD remains unclear, there seems to be stronger evidence
implicating severe early neglect as a risk factor for later ADHD
type symptoms. Although not likely to be a common pathway
to ADHD in the UK, cases of severe deprivation and neglect
experienced by children raised in Romanian orphanages is associated
with later inattention and over activity, despite subsequent
adoption into UK families (Rutter et al. 2001).