Primate Research
Online ISSN : 1880-2117
Print ISSN : 0912-4047
ISSN-L : 0912-4047
Search
Advanced search
OR
Browse
Search
Volume 22, Issue 2
Displaying 1-8 of 8 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
Preface
Review
  • Attention Deficit/Hyperactivity Disorder (ADHD) and Animal Models
    Shintaro FUNAHASHI
    2006 Volume 22 Issue 2 Pages 85-96
    Published: 2006
    Released on J-STAGE: March 13, 2007
    DOIhttps://doi.org/10.2354/psj.22.85
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    ADHD is one of the most prevalent childhood psychiatric disorders and could be explained as a prefrontal dysfunction. Studies suggest that ADHD is related to deficits of dopamine-related functions, because methylphenidate, which is a dopamine transporter inhibitor, is the most effective medication for the treatment of ADHD. The prefrontal cortex is the cortical area where the most strong dopamine innervation is observed. Local acute injection of dopamine-related drugs to the prefrontal cortex produces modulation of task-related activity and behavioral deficits in cognitive task performances. Thus, the dysfunction of dopamine-related modulation in the prefrontal cortex could be a possible candidate of biological causes of ADHD. To prove this idea, in the future we are going to inject 6-OHDA into infant monkeys' prefrontal cortex to disturb dopamine functions chronically and compare its behavior with normal monkeys.
    View full abstract
    Download PDF (625K)
  • A Historical Review of Lemur Classification
    Mitsuru AIMI, Naoki KOYAMA
    2006 Volume 22 Issue 2 Pages 97-116
    Published: 2006
    Released on J-STAGE: March 13, 2007
    DOIhttps://doi.org/10.2354/psj.22.97
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Recently, many new species of living primates have been described from Madagascar. The total number of known living lemuroid species has increased from 32 in 1996 to 70 as of 2006. This number has more than doubled in the last decade. This increase is due to at least three factors, 1) taxonomic inflation, i. e., cases in which subspecies are raised to the species level, 2) advances in molecular classification, and 3) discovery of new species.In this review, we explain why the lemuroids are endemic, based on the geological history of Madagascar. The methods are explained for the reconstruction of this phylogeny following Remane (1956) and Hennig (1966). Lemur classification is reviewed historically from the work of many taxonomists starting from Schwarz (1931) through to the present with that of Mittermeier et al. (2006). Some controversies on the classification are mentioned and discussed briefly. A classification table of the living lemuroids is presented with a listing of the scientific name, the English name, and the Japanese name for each species.
    View full abstract
    Download PDF (968K)
Information
Book Review
    • |<
    • <
    • 1
    • >
    • >|
Top