?url_ver=Z39.88-2004&rft_id=10.1006%2Fnimg.1997.0256&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Mentis&rft.aufirst=Marc+J.&rft.au=Mentis%2C+Marc+J.&rft.date=1997&rft.title=NeuroImage&rft.atitle=Frequency+Variation+of+a+Pattern-Flash+Visual+Stimulus+during+%7BPET%7D+Differentially+Activates+Brain+from+Striate+through+Frontal+Cortex&rft.issue=2&rft.pages=116+-+128&rft.volume=5&rft.issn=1053-8119&rft.genre=article