Processing incoming sensory information and transforming this input into appropriate motor responses is a critical and ongoing aspect of our moment-to-moment interaction with the environment. While the neural mechanisms in the posterior parietal cortex (PPC) that support the transformation of sensory inputs into simple eye or limb movements has received a great deal of empirical attention – in part because these processes are easy to study in non-human primates – little work has been done on sensory-motor transformations in the domain of speech. Here, we used fMRI and multivariate analysis techniques to demonstrate that a region of the Planum Temporale (Spt) shows distinct spatial activation patterns during sensory and motor aspects of a speech task. This result suggests that just as the PPC supports sensorimotor integration for eye and limb movements, the Spt forms a sensory-motor integration circuit for the vocal tract. Link to paper here |
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New Paper: Area Spt in the Human Planum Temporale Supports Sensory-Motor Integration for Speech Processingposted Feb 24, 2009 10:25 AM by Perception Lab [ updated Feb 24, 2009 10:38 AM ] |