Abstract
This study looked at eye movements in relation to source memory in older adults. Participants first studied images of common objects appearing in different quadrants of a screen. After a delay, they were shown cues one at a time presented in all four quadrants. Participants stated whether or not the cue had been seen before and in which location. Participants also rated level of confidence in their responses. In trials where participants either claimed they have not seen a previously presented cue or placed it in an incorrect location, they looked significantly more at the correct quadrant. The proportion of time looking at the correct quadrants during incorrect responses was not related to confidence ratings. These results suggest that eye gaze during the memory task does not reflect memory retrieval below the threshold of verbal report. They instead point to an implicit form of source memory in humans that is accessible to eye movements but not to verbal responses.
Highlights
Details about the context within which objects and events previously occurred are often important to remember
We investigated the temporal dynamics of eye movements during a source memory procedure in university students [16]
We studied whether attention to cues appearing on a computer screen predicts later recognition and memory for the prior screen location of the cue
Summary
Details about the context within which objects and events previously occurred are often important to remember. The cognitive processes of memory have been described by dual-process models that propose involvement of both recollection and familiarity [6,7].
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