We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleWhat catatonia can tell us about “top-down modulation”: A neuropsychiatric hypothesisAuthorsNorthoff, GeorgPublicationBehavioral and Brain Sciences, 2002, Vol 25, Issue 5, p555ISSN0140-525xPublication typearticleDOI10.1017/s0140525x02000109