Reprinted with permission from T. Shallice, P. Fletcher, C.D. Frith, P. Gratsby, R.S.J. Frackowiak and R.J. Dolan, 'Brain regions associated with acquisition and retrieval of verbal episodic memory', Nature 368 (1994), pp. 633-5 (www.nature.com). Copyright 1994 Macmillan Magazines Limited.

Figure 4. PET images of memory. Regions of the brain showing increased blood flow during learning and recall of word lists as demonstrated by positron emission tomography.

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