This volume represents the collected papers presented at the Third
Triennial Symposium of the International Basal Ganglia society (IBAGS)
held at Capo Boi, Italy, June 10-13, 1989. About 300 members of the
society and participants attended the symposium which was held in a
delightful environment conducive to the formal and informal exchange of
scientific thought. The interdisciplinary nature of the symposium was
unique in its coverage of the neurosciences from molecular biology to
clinical and behavioural studies. The 80 papers collected here reflect
the wide spectrum and the depth of studies on virtually all aspects of
the basal ganglia. Unfortunately, this book does not capture the cordial
and congenial atmosphere which has characterized this, and all prior
symposia of the Society. Any cooperative endeavour of this kind requires
a tremendous effort and dedication, usually by a small number of
individuals. The Society is especially pleased to acknowledge the
support and encouragement of the "Italian Ministry of university and
Scientific Research" and the "Italian National. Research Council". In
addition the society received financial support from numerous
Foundations and corporations, which are listed separately under
acknowledgements. Finally the Editors are pleased that Plenum Press,
which has published the two previous symposia, has accepted this program
for publication. It is our hope that vast scientific efforts reflected
in these pages will be widely disseminated and further encourage every
kind of research related to the basal ganglia.