Patients with hippocampal amnesia cannot imagine new experiences.

ABSTRACT: Amnesic patients have a well established deficit in remembering their past experiences. Surprisingly, however, the question as to whether such patients can imagine new experiences has not been formally addressed to our knowledge. We tested whether a group of amnesic patients with primary damage to the hippocampus bilaterally could construct new imagined experiences in response to short verbal cues that outlined a range of simple commonplace scenarios. Our results revealed that patients were markedly impaired relative to matched control subjects at imagining new experiences. Moreover, we identified a possible source for this deficit. The patients' imagined experiences lacked spatial coherence, consisting instead of fragmented images in the absence of a holistic representation of the environ

SUBMITTER: Hassabis D 

PROVIDER: S-EPMC1773058 | biostudies-literature | 2007 Jan

REPOSITORIES: biostudies-literature