Seeing and Perceiving 24 (2011) 391–405 brill.nl/sp Anomalous Auditory Cortex Activations in Colored Hearing Synaesthetes: An fMRI-Study ∗ Birgit Gaschler-Markefski 1 , ∗∗ , Gregor R. Szycik 2 , ∗∗∗ , Christopher Sinke 2 , 3 , Janina Neufeld 2 , 3 , Udo Schneider 2 , Frank Baumgart 1 , Oliver Dierks 2 , Ursula Stiegemann 2 , Henning Scheich 1 , Hinderk Meiners Emrich 2 and Markus Zedler 2 1 Leibniz Institute for Neurobiology, Magdeburg, Germany 2 Department of Psychiatry, Social Psychiatry and Psychotherapy, Medical School Hannover, Carl-Neuberg-Straße 1, 30625 Hannover, Germany 3 Center for Systems Neuroscience, Hannover, Germany Received 13 January 2011; accepted 10 June 2011 Abstract Color percept induction in synaesthetes by hearing words was previously shown to involve activation of visual and specifically color processing cortex areas. While this provides a rationale for the origin of the anomalous color percept the question of mechanism of this crossmodal activation remains unclear. We pursued this question with fMRI in color hearing synaesthetes by exposing subjects to words and tones. Brain activations in word condition accompanied by highly reliable color percepts were compared with activations in tone condition with only occasional color percepts and both contrasted
Seeing and Perceiving (continuation of Spatial Vision from 2010 and continued as Multisensory Research from 2013) – Brill
Published: Jan 1, 2011
Keywords: FMRI; SPEECH; SYNAESTHESIA
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