<affiliation wicri:level="2"><nlm:affiliation>Unit for Experimental Psychiatry, Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA 19104-6021, USA. dinges@mail.med.upenn.edu</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Unit for Experimental Psychiatry, Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA 19104-6021</wicri:regionArea>
<placeName><region type="state">Pennsylvanie</region>
</placeName>
</affiliation>