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d i t o r i a lDear
Colleagues,Our
daily clinical practice reminds us that the symptoms of schizophrenia are extraordi-narily varied and that the effects of
treatment are uncertain. This state of affairs is probablydue to our relative ignorance of the
mechanisms and etiology of the disorder. Even thoughmany aspects of schizophrenia are quite
well elucidated, we are still lacking a satisfying modelof the illness. Treatment is still
aimed at symptoms, rather than at etiological mechanisms.This issue of Dialogues
in Clinical Neuroscience is a treasure trove of hypotheses and sug-gestions for research. The contributors
give an excellent description of the current state ofknowledge
on schizophrenia. Fascinating views on the origin and spectrum of the disorder
areprovided by
articles on childhood psychosis, the prodromal phase and the possibility
of pro-phylaxis, and
the role of genetic factors. Also of great interest is the influence exerted
by sit-uation, time, age, or
location on the manifestations of the illness. For instance, specific
settingslike
China are described and serve to illustrate the interaction of biological and
socioculturalfactors.This is the second issue of Dialogues
in Clinical Neuroscience devoted to schizophrenia.Carol Tamminga, a world-renowned
expert in schizophrenia from the University of Maryland,Baltimore, coordinated this issue
and selected the contributors.We hope that this informationwill motivate clinicians and researchers
alike to dedicate their time to this puzzling disorderand
the patients who are afflicted.Yours
sincerely,Jean-Paul
Macher, MD Marc-Antoine
Crocq, MD