FIGURE 6.10 PET Scans of Successful and Unsuccessful Recall When people successfully remembered words they saw earlier in an experiment (achieving high levels of recall on a test), the hippocampus showed increased activity.When people tried but failed to recall words they had seen earlier (achieving low levels of recall on a test), the left frontal lobe showed increased activity (Schacter, Alpert, et al., 1996).
Schacter DL, Alpert NM, Savage CR, Rauch SL, Albert MS. Conscious recollection and the human hippocampal formation: evidence from positron emission tomography. Proc Natl Acad Sci USA 1996; 93: 321-