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| Poster #251 Gustatory-Olfactory Cortical Interactions in Response to Multimodal Stimuli |
| Thomas R. Gray, Ainsley E. Craddock, Amelia S. White, Isaac Goldstein, Donald B. Katz Brandeis University, Waltham, MA, United States |
Tastes and smells often appear in tandem, creating the experience of flavor. While there are many components that must be understood together in context to better grasp the cortical processing of flavors, research is beginning to describe how higher-order chemosensory cortical areas process multimodal chemosensory in detail. The higher order cortical areas that process taste, smell, and flavor include gustatory cortex (GC) and piriform cortex (PC). These areas change their activity when a combination of taste and smell are perceived. When recording electrophysiological signals from either area, responses to both taste and smell are observed. A question that remains is how the coherence between GC and PC is modulated when unimodal stimuli or multimodal stimuli are perceived and whether the coherence depends on if smell is delivered retronasally (through the mouth) or orthonasally (into the nares). We demonstrate interactions of this flavor network and changes in its overall coherence with multi-site multi-electrode electrophysiological recordings. |