Changes in cerebral blood flow during olfactory stimulation in patients with multiple chemical sensitivity: a multi-channel near-infrared spectroscopic study.
Multiple chemical sensitivity (MCS) is characterized by somatic distress upon exposure to odors.Patients with MCS process odors differently from controls.This odor-processing may be associated with activation in the prefrontal area connecting to the anterior cingulate cortex, which has been suggested as an area of odorant-related activation groovy