An investigation of visuospatial memory impairment in children with attention deficit hyperactivity disorder (ADHD), combined type

Abstract

Background. Memory impairment is not considered a core cognitive feature of attention deficit hyperactivity disorder, combined type (ADHD-CT), although it is associated with impairments in attentional and executive functions. This study investigates visuospatial memory impairment, in particular encoding and retrieval aspects, in children with ADHD-CT who are stimulant-medication naive and medicated with stimulant medication. Method. A cross-sectional study of visuospatial memory in 6- to 12-year -old children with stimulant-medication-naive ADHD-CT (n=62) and medicated ADHD-CT (n=58) compared to an age- and gender-matched healthy control group (n=39) was completed. Results. Both medication-n..