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Citation

Della Sala S, Gray C, Baddeley A, Allamano N & Wilson JTL (1999) Pattern span: a tool for unwelding visuo-spatial memory. Neuropsychologia, 37 (10), pp. 1189-1199. https://doi.org/10.1016/S0028-3932%2898%2900159-6

Abstract
Evidence showing that non-verbal short-term memory has distinct visual and spatial/sequential components is reviewed. A new test, The Visual Patterns Test (VPT), which was designed to measure short-term visual memory largely shorn of its spatio-sequential component, is described. Correlational studies of the VPT and the Corsi Blocks Test with healthy subjects and brain-damaged patients indicate a separation between visual and sequential abilities. This separation of function is supported by double dissociations shown by patients. Moreover, in a selective interference experiment, the VPT and the Corsi tests were found to show a double dissociation pattern of interference from visual and spatio-sequential subsidiary tasks, respectively. The present results are discussed in relation to other findings in the literature, and it is concluded that non-verbal short-term memory can indeed be viewed as comprising distinct visual and spatio-sequential components. The VPT will be a useful neuropsychological instrument for measuring the visual component

Keywords
working memory; visual short-term memory; spatial short-term memory

Journal
Neuropsychologia: Volume 37, Issue 10