Autobiographical memory for spatial location is unaffected by delay

To examine recall of personal spatial location during a previously experienced event, Lafayette College students located themselves in a version of their incoming class photograph that was all black with each individual figure identified in white. They then subsequently identified themselves in the original version of the photograph. The distance between the initial choice in the obscured version and the individual's correct location was recorded. Participants were remarkably and equally accurate in identifying their location irrespective of whether the event occurred 2, 6, 18, 30, 38, or 42 months earlier. Although non-spatial aspects of the cue and rehearsal did not influence accuracy, objective location in the photograph partially accounted for error rates. However, none of these factors was sufficient to explain the absence of delay effects. Unlike spatial memory, recall of temporal information showed a linear decrease in accuracy with delay, but with exceptionally accurate performance by senior-class students.

► People accurately recalled their location in a large group photograph whether the event occurred 2 or 42 months earlier.
► Unlike spatial memory, memory for when the photo was taken decreased over time, though Seniors were as accurate as Freshmen.
► Consistent with flashbulb memory theories, temporal and spatial accuracy were related to vividness of memory for the event.