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Auditory what, where, and when in dynamic patterns: evidence from fMRI

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Schubotz,  Ricarda Ines
MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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von Cramon,  D. Yves
MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Citation

Schubotz, R. I., & von Cramon, D. Y. (2002). Auditory what, where, and when in dynamic patterns: evidence from fMRI. Poster presented at 44. Tagung experimentell arbeitender Psychologen, Chemnitz.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-9F3B-1
Abstract
Recent fMRI findings indicate that the visual analysis of temporal, spatial, and object-specific patterns engages different regions within the premotor cortex (PMC) (Schubotz and von Cramon, 2001a). This was taken to reflect an automatic sensorimotor mapping according to a rough somatotopy. The present fMRI study tested that hypothesis, using auditory stimuli. Four tasks were presented in a random trial design. Within each trial, 12 artificial noises were presented sequentially. Participants were required to monitor temporal (when), spatial (where), or qualitative (what) patterns for deviants in a forced-choice task. A baseline controlled for perceptual and response effects. Results replicated premotor activations. Thus, inferior PMC responded to when patterns, dorsal PMC to where patterns, and middle PMC to what patterns. In contrast to former findings in the visual paradigm, auditory what patterns elicited additional activations in inferior PMC, pointing to a dual representation including both manual and articulatory motor effectors.