Behavioural effects of methylphenidate in 6-hydroxydopamine-treated neonatal rats

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Abstract
Neonatal rats treated at 7 days of age with 6-hydroxydopamine show normal levels of activity during maturation, but less hyperactivity than normals do when additionally treated with methylphenidate hydrochloride between 14 and 22 days of age. Comparison of these results with those of other workers suggests that several experimental variables must be controlled precisely if reproducible results analogous to the disturbed behaviour of children with minimal brain dysfunction (MBD) are to be obtained.