Differential and co-involvement of areas of the temporal and parietal streams in visual tasks.

Neuropsychologia
A Ellison, Alan Cowey

Abstract

Transcranial magnetic stimulation (TMS) is particularly useful in teasing apart the contrasting contributions of different anatomical and functional systems in particular aspects of behaviour, for example the involvement of the dorsal and ventral visual streams in tasks involving the perception of distance, shape and colour. In order to investigate the dual involvement of two areas, namely right posterior parietal cortex (PPC) and lateral occipital cortex (LO), in a distance discrimination task, neural processing in both areas was concurrently disrupted using dual site TMS. Although there was no change in error rates, reaction time was significantly lengthened over that seen with TMS over either site alone. This additive effect indicates that both PPC and LO are concurrently active and essential for efficient processing of this task. The second experiment investigated the specificity of function within the ventral stream. Performance was assessed for distance and shape discrimination when TMS was applied to our original LO site and an area rostral to V5 but still part of the lateral occipital complex (rostral LOC) that is activated in form and colour discrimination. Performance deficits were restricted to TMS over LO; no signif...Continue Reading

References

Jan 1, 1992·Trends in Neurosciences·M A Goodale, A D Milner
Aug 29, 1995·Proceedings of the National Academy of Sciences of the United States of America·R MalachR B Tootell
Dec 16, 1997·Brain : a Journal of Neurology·G R FinkC D Frith
Aug 15, 1998·Human Brain Mapping·K Grill-SpectorR Malach
Mar 17, 2001·Nature Reviews. Neuroscience·V Walsh, A Cowey
Apr 27, 2001·Vision Research·K Grill-SpectorN Kanwisher
Dec 12, 2001·Cerebral Cortex·Y LernerR Malach
Aug 17, 2002·Brain : a Journal of Neurology·Otto BjoertomtVincent Walsh
Jun 20, 2003·NeuroImage·Galia AvidanRafael Malach
Nov 15, 2003·Neuropsychologia·Paolo BartolomeoPeter Halligan
Oct 19, 2004·Neuropsychologia·Susanne FerberTutis Vilis
Feb 15, 2005·Neuropsychologia·Thomas SchenkA David Milner
Jul 5, 2006·Experimental Brain Research·Amanda Ellison, Alan Cowey
Apr 3, 2009·Journal of Neuropsychology·Otto BjoertomtVincent Walsh

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Citations

Jun 23, 2009·Experimental Brain Research·Robin LaycockSheila G Crewther
Feb 5, 2013·Nature Neuroscience·Edward H SilsonAntony B Morland
Nov 3, 2010·Neuropsychologia·Marco HirnsteinMarkus Hausmann
Mar 25, 2011·Human Brain Mapping·Colleen DockstaderDonald J Mabbott
Sep 4, 2015·Neuron·Beth L ParkinVincent F Walsh
Dec 24, 2013·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Silvia BonaZaira Cattaneo
May 12, 2009·Neuropsychologia·Robert D McIntosh, Thomas Schenk
Oct 15, 2013·Journal of Cognitive Neuroscience·Martijn E WokkeVictor A F Lamme
Jun 13, 2020·Journal of Cognitive Neuroscience·Til Ole Bergmann, Gesa Hartwigsen

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