![Methylphenidate but not sulpiride modulates cognitive activation in healthy elderly volunteers]()
Methylphenidate but not sulpiride modulates cognitive activation in healthy elderly volunteersEd Bullmore; John Suckling; Carol Routledge; Fernando Zelaya; Chris Long; Virginia Ng; Steve Jackson; John Brown; Laurence Reed; Emma Ouldred; Chris Andrew; Semal Butt; Steve Williams · 2001