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Gillebert et al. (2012) combined functional magnetic resonance imaging and TVA-based computational modeling to investigate the role of the parietal cortex in attentional selection and visual short-term memory.  The authors factorially varied target and distracter set size during a change detection task.  A significant interaction occurred in the middle segment of the intraparietal sulcus and the right temporoparietal junction. The right temporoparietal junction was involved in spotting target singletons. The response profile of the intraparietal sulcus reflected the combined effect of selection and access to visual short-term memory.

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A new study by Sørensen and Kyllingsbæk (2012) demonstrate an effect of expertise on visual short-term memory (VSTM) capacity. The study measured the change in VSTM capacity for letters and pictures in four age groups. Here an increase in VSTM capacity for letters with age but not for pictures is reported. The results indicate that VSTM capacity is dependent on the level of expertise for specific types of stimuli processed.

Article available for download through ScienceDirect

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