Localizing the sheep auditory cortex using functional magnetic resonance imaging
Résumé
The precise 3D location of the sheep auditory cortex is unknown. A single neuronal tracer study highlighted that a small region of the rostral most part of the posterior ectosylvian gyrus may constitute the sheep auditory cortex (Michaloudi et al., 1986). More evidence is required to accurately localize and understand the anatomical and functional properties of the sheep auditory cortex. To precisely map its 3D location, we use fMRI to acquire functional brain images from a group of anesthetized sheep. However, anesthesia can be detrimental to health, disrupt neurovascular coupling (Aksenov et al., 2015) and does not permit the study of higher-level cognition. Thus we also present a proof of concept that positive reinforcement training in sheep is sufficient to be able to acquire MRI of their brain.
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