Visual paired comparison performance is impaired in a patient with selective hippocampal lesions and relatively intact item recognition

LGF Group, Department of Psychology, The University of Sheffield, Western Bank, Sheffield S10 2TP, UK.
Neuropsychologia (Impact Factor: 3.3). 02/2004; 42(10):1293-300. DOI: 10.1016/j.neuropsychologia.2004.03.005
Source: PubMed


In this study, we have examined visual recognition memory in a patient, YR, with discrete hippocampal damage who has shown normal or nearly normal item recognition over a large number of tests. We directly compared her performance as measured using a visual paired comparison task (VPC) with her performance on delayed matching to sample (DMS) tasks. We also investigated the effect of retention interval between familiarisation and test. YR shows good visual recognition with the DMS task up to 10 s after the familiarisation period, but only shows recognition with the VPC task for the shortest retention interval (0 s). Our results are consistent with the view that hippocampal damage disrupts recollection and recall, but not item familiarity memory.

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Available from: Olivier Pascalis,
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    • "Recognition memory is a pervasive and critical form of memory which is most commonly tested in the experimental animal with the novel object recognition (NOR) task. For anterograde memory, the NOR task has proven to be sensitive to hippocampal damage or disruption in humans [8] [9], monkeys [10] [11] [12], rats (e.g., [13]), and mice (e.g., [14]). The NOR task is also sensitive to hippocampal damage when the damage occurs after the learning episode [15] [16]. "
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    • "(d) The simplified version of the OiP task in which one object at test occupies a location previously occupied by a different object. rodents and research suggests that the spontaneous object recognition task is more sensitive to recognition memory deficits than the DNMS task (Clark and Squire, 2010; Nemanic et al., 2004; Pascalis et al., 2004). The use of the spontaneous object recognition task across multiple disciplines can be attributed to a number of advantages . "
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