Categorical and coordinate spatial processing in the imagery domain investigated by rTMS

Neuropsychologia
Luigi TrojanoDario Grossi

Abstract

Using repetitive transcranical magnetic stimulation (rTMS), we investigated the functional relevance of posterior parietal cortex for categorical and coordinate judgements in the spatial imagery domain. In the coordinate task, subjects were asked to imagine two analogue clock faces based on acoustically presented pairs of times, and to judge at which of the two times the clock hands form the greater angle (mental clock task); in the categorical task subjects were again asked to imagine an analogue clock face showing the time verbally presented by the examiner, but in this case they had to judge whether both hands lay in the half of the clock face cued by an auditorily presented label. We matched the performance of three groups of subjects, two of which received rTMS stimulation over left and right posterior parietal cortex, respectively, while the third group received a sham stimulation. The results showed that right parietal stimulation interfered with the execution of the coordinate task, while left parietal stimulation mainly affected the categorical task, but also reduced the learning effect on the coordinate task. The present findings support the hemispheric specialization of the posterior parietal cortex in different spat...Continue Reading

References

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Citations

Oct 28, 2009·Journal of Neural Transmission·Birgit GuseThomas Wobrock
Jan 9, 2009·Laterality·Katie L MeadmoreRomola S Bucks
Jan 29, 2011·The Quarterly Journal of Experimental Psychology : QJEP·Francesco RuotoloAlbert Postma
Jul 31, 2012·Attention, Perception & Psychophysics·Liana PalermoCecilia Guariglia
Aug 20, 2010·Cognitive Neuropsychology·Liana PalermoCecilia Guariglia
Oct 6, 2012·Journal of Clinical and Experimental Neuropsychology·Liana PalermoCecilia Guariglia
Nov 17, 2007·Brain and Cognition·Massimiliano ConsonLuigi Trojano
Jul 8, 2015·Neuroscience Letters·L PiccardiF Giusberti
Aug 5, 2009·Brain Research·Ineke J M van der HamAlbert Postma
Feb 25, 2015·Applied Neuropsychology. Adult·Virginie DesclouxRoland Maurer
May 27, 2014·Neuroscience and Biobehavioral Reviews·Ineke J M van der HamBruno Laeng
Jan 18, 2014·Psychological Research·Mark P HoldenElizabeth Hampson
May 18, 2016·Experimental Brain Research·Francesco RuotoloAlbert Postma
Mar 16, 2007·Perception·Matthijs L NoordzijAlbert Postma
Apr 21, 2019·Scientific Reports·Sven HilbertPaul Christopher John Taylor

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