Authors: Tadamasa Narimoto, Naomi Matsuura, Michio Hiratani

Title: Impaired Visuospatial Short-Term Memory in Children with ADHD

Journal: Journal of Genetic Psychology


Abstract: Previous studies provide clear evidence that visuospatial
memory performance in children with attention-deficit/hyperactivity
disorder (ADHD) is significantly lower than in typically developing
children. In the present study, we investigated a major cause of their
low performance using a spatial span test. Possibly, inattention
resulting from lack of motivation or interest causes their low
performance so that they do not correctly encode targets to be
remembered. On the other hand, a deficit in temporary maintenance per se
may cause their low performance; that is, their inefficient use of
rehearsal during a retention interval may lead to memory traces’ fast
decay. Results in this study indicated that children with ADHD could
sustain attention during the encoding phase. Furthermore, their
performance at delayed recall was significantly lower than immediate
recall, but delayed recall did not affect typically developing children’
s performance. These results provide evidence for the likelihood that a
factor causing children with ADHD difficulty in temporarily maintaining
visuospatial information is fast decay of memory traces as a result of
inefficient use of rehearsal, not inattention in the encoding phase.

著者Contact先のemail: tanarimo[at]