Hisashi Tsuji

Learn More
No previous study about comorbidity of attention-deficit/hyperactivity disorder (ADHD) in Japan have carried out both a comprehensive investigation using a structured interview and a comparison between ADHD subtypes. The aim of the present study was to clarify the relationship between hyperactivity and disruptive behavior disorder (DBD) in ADHD by comparing(More)
BACKGROUND Although there are many reports of high rates of hyperactivity and attention deficits in children with Pervasive Developmental Disorders (PDD), controversy remains about the applicability of the diagnosis of Attention-Deficit/Hyperactivity Disorder (ADHD) to PDD children. The present study elucidates the similarities and differences of ADHD(More)
AIMS Sensory-perceptual abnormalities, which include hyper- and hyposensitivity, have been identified by numerous researchers as prevalent in individuals with pervasive developmental disorders (PDD). Hypersensitivity has a greater impact on PDD patients' daily lives than hyposensitivity. The purpose of the present study was to clarify the relationship of(More)
The tree pattern matching problem is, given two labeled trees P and T , respectively called pattern tree and target tree, to find all occurrences of P within T. Many studies have been undertaken on this problem for both the cases of ordered and unordered trees. To realize flexible matching, a kind of variable-length-don't-care's (VLDC's) have been(More)
Autoradiography (ARG) has been used for quantitative analysis of the cerebral blood flow using <sup>123</sup>I-IMP, and the regional cerebral blood flow (rCBF) can be assessed more accurately with scatter and attenuation correction. Currently, the filtered back projection (FBP) method is generally used for image reconstruction. However, we anticipate(More)
  • 1