We examined remote memory in a patient with posttraumatic amnesia. In speci
al assessment for public events, the patient showed preserved verbal recogn
ition of items and contents of past events, and impaired verbal recall of c
ontents of events. This pattern was not observed in autobiographical memory
, in which his performance was perfect. In time estimation of past events,
the patient showed a temporally graded impairment for public events in both
conditions of allocentric and egocentric temporal judgment, but for autobi
ographical memory in only the former condition. These two patterns of disso
ciation suggest that the impairment in recall of public events may be relat
ed to disturbed retrieval strategy using the allocentric temporal context i
nformation about past public events. (C) 2000 Academic Press.