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Fig. 1 | Environmental Health and Preventive Medicine

Fig. 1

From: Assessment of cerebral blood flow in patients with multiple chemical sensitivity using near-infrared spectroscopy—recovery after olfactory stimulation: a case–control study

Fig. 1

Experimental protocol. First, the subjects had a 30-s pre-rest. Then, the subjects were given an olfactory stimulus for 10 s, followed by a 30-s post-rest and 30-s self-reporting to a questionnaire on irritating and hedonic scales, respectively. The 100-s cycles per odorant were repeated 10 times in a row

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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