Brain Mechanisms for Extracting Spatial Information from Smell
| Autor: | Tarini Anand, Noam Sobel, Jess Porter, Rehan M. Khan, Brad Johnson |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Adult
Male Neural substrate Neuroscience(all) Functional Laterality Primary olfactory cortex Superior temporal gyrus Neuroimaging Olfactory Mucosa Orientation Physical Stimulation Humans Spatial representation Spatial analysis Visual Cortex Cerebral Cortex Brain Mapping General Neuroscience Olfactory Pathways Somatosensory Cortex Magnetic Resonance Imaging Temporal Lobe Smell Space Perception Odorants Auditory localization Female Nasal Cavity Nerve Net Psychology Neuroscience |
| Zdroj: | Neuron. 47(4):581-592 |
| ISSN: | 0896-6273 |
| DOI: | 10.1016/j.neuron.2005.06.028 |
| Popis: | SummaryForty years ago, von Békésy demonstrated that the spatial source of an odorant is determined by comparing input across nostrils, but it is unknown how this comparison is effected in the brain. To address this, we delivered odorants to the left or right of the nose, and contrasted olfactory left versus right localization with olfactory identification during brain imaging. We found nostril-specific responses in primary olfactory cortex that were predictive of the accuracy of left versus right localization, thus providing a neural substrate for the behavior described by von Békésy. Additionally, left versus right localization preferentially engaged a portion of the superior temporal gyrus previously implicated in visual and auditory localization, suggesting that localization information extracted from smell was then processed in a convergent brain system for spatial representation of multisensory inputs. |
| Databáze: | OpenAIRE |
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