Improved low-cost,MR-compatible olfactometer to deliver tobacco smoke odor |
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Authors: | Steven B Lowen Stacey L Farmer Scott E Lukas |
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Institution: | 1.McLean Imaging Center,McLean Hospital/Harvard Medical School,Belmont,USA |
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Abstract: | We describe a low-cost, MRI-compatible olfactometer that delivers fresh cigarette smoke odor, a challenging odorant to present, as well as other odorants. This new olfactometer retains all of the advantages of an earlier design that was capable of only delivering volatile odors (Lowen & Lukas, Behavior Research Methods, 38, 307–313, 2006). The new system incorporates a novel switching mechanism that allows it to deliver fresh smoke generated from a burning cigarette during a stimulus presentation paradigm that might be employed in a cue-reactivity experiment. An evaluation study established that the olfactometer reliably delivered smoke to the participants and that tobacco smoke was discriminated from other odorants; there were no adverse reactions to the device. |
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