| http://www.w3.org/ns/prov#value | - Alternatively or additionally, the changes induced by electrical stimulation as described hereinabove are achieved by presenting odorants to an air passage of a patient, such as a nasal cavity or the throat There is animal evidence that some odorants, such as propionic acid, cyclohexanone, and amyl acetate, significantly increase cortical blood flow when presented to the nasal cavity.
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