
Am J Psychiatry 164:1428-1434, September 2007
doi: 10.1176/appi.ajp.2007.06081266
© 2007 American Psychiatric Association
Morphology of the Cerebral Cortex in Preclinical Huntingtons Disease
Peg Nopoulos, M.D.,
Vincent A. Magnotta, Ph.D.,
Ania Mikos, M.S.,
Henry Paulson, M.D., Ph.D.,
Nancy C. Andreasen, M.D., Ph.D., and
Jane S. Paulsen, Ph.D.
OBJECTIVE: Cortical morphology was evaluated in subjects with known gene expansion for Huntingtons disease and no manifest disease. METHOD: Magnetic resonance imaging scans were obtained for 24 subjects with preclinical Huntingtons disease and were compared to those for 24 matched healthy subjects by means of novel imaging methods to quantify aspects of cortical structure. RESULTS: In relation to the comparison subjects, those with preclinical Huntingtons disease showed altered cortex morphology with enlargement of gyral crowns and abnormally thin sulci. These changes were manifested in global alterations of gyral and sulcal shape. CONCLUSION: These findings lend support to the notion that, in addition to the degenerative process, abnormal neural development may also be an important process in the pathoetiology of Huntingtons disease.
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