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Vision and Eye Research Unit (VERU), Anglia Ruskin University, Cambridge, United KingdomComputing and Technology, Anglia Ruskin College, Cambridge, United Kingdom

Shahina Pardhan, Raju Sapkota, Ian van der Linde; How does ageing influence visual short-lived memory for identifying objects in their spatial locations?. Invest. Ophthalmol. Vis. Sci.

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2014;55(13):779.

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Purpose: It has been presented that normal aging reduces the capacity to remember an object’s visual attributes such as its colour and form as soon as presented for brief durations. We examined the results of aging on visual short term memory (VSTM) for facility visual tasks that require participants to remember both the object and its spatial place (object-location binding).

Methods: Two experiments were conducted: object recontact and also place identification. Seventeenager young (mea period =23.3 years), and also 17 generally ageing subjects (expect age=66.5 years) participated. In experiment 1, the ‘memory display’ made up two or 4 Snodgrass stimuli (memory loads ML2 and ML4 respectively). These were presented sequentially, for 650ms, at random areas on a display complied with by a 1000ms empty interval, and also then the presentation of a ‘test display’. The test screen offered a spatial marker to cue one of the formerly presented stimuli places. Participants were asked to report which targain had been presented at that particular spatial area. In experiment 2, the memory display was similar to experiment 1, yet in the test display screen among the previously presented objects was shown as a test targain. All the possible spatial places were likewise displayed, each identified by a numbered marker. Participants were asked to report the spatial location at which the target object had been shown in the memory screen.

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Results: The portion correct responses were analysed using 2 × 2 mixed ANOVA. Older subjects showed a considerably lower performance compared to younger subjects (Experiment 1: F(1,32)=27.41, p

Conclusions: Older subjects have diminished VSTM capacity for tasks that need object-area binding. This is evident also through relatively tiny memory loads.