Kligebiel, k., Hutton, S., Majerus, S., Mazzi, C., Weekes, B. Is the left IPS necessary for verbal short-term memory? A TMS study. In Procedia: Social and Behavioral Sciences, 2012, v. 61, p. 115-116 DOI: http://dx.doi.org/10.1016/j.sbspro.2012.10.105

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Abstract:

Studies reveal the importance of verbal short-term memory (STM) to understanding the language problems in aphasia (Martin & Reilly, 2012). STM can be divided into two processes: memory for serial order and memory for item identity. Brain imaging studies show these two processes have different neural loci (Majerus, et al. 2006). Our aim was to test whether disrupting left and right intra-parietal sulcus (IPS) with Transcranial Magnetic Stimulation (TMS) would have different effects on performance in order
and item verbal STM tasks. Ten healthy, monolingual participants took part. A structural magnetic resonance imaging (MRI) scan was taken for all participants. Each participant was tested with reference to brain topography via Minibird software. TMS was applied using a Magstim SuperRapid stimulator Figure-of-Eight double 70-mm coil. rTMS was applied over the left anterior IPS, the right anterior IPS or the vertex each applied on separate days. A no-TMS ( Sham ) condition was included as in other studies of disruption to IPS ( Hutton & Weekes, 2007). Participants performed serial order and an item identity memory tasks ( Majerus et al.2007).