The reference is probably to "A Functional Anatomy Study of Human Memory"
by Squire, Ojemann, Miezin, Petersen, Videen and Raichle.
They used regional cerebral blood flow measured with [15-0]-H2O PET to
localise areas of cortical activation in a word recall/stem matching task.
They found activation in right hippocampal areas and right prefrontal cortex .
It was probably news 'cuz no one else has shown hippocampal activation in
a memory task.
The reference is:
Squire, Ojemann, Miezin, Petersen, Videen and Raichle. Soc. Neurosci. Abstr.
Vol 17, Part 1, p4. 1991.
It was presented at the New Orleans Neuroscience meeting on Nov. 10th.
Sean