Journal
JOURNAL OF NEUROSCIENCE METHODS
Volume 160, Issue 2, Pages 231-245Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jneumeth.2006.09.008
Keywords
olfactometer; psychophysics; fMRI; olfaction; methods
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We provide detailed instructions and part selections for construction of a five-channel air dilution olfactometer capable of generating neat odorants and binary mixtures at a range of known concentrations. At the heart of the olfactometer is an odorant canister that is (1) cheap and readily available, (2) safe and durable, (3) has minimal odor adherence, (4) is easily incorporated into any olfactometer, and critically (5) produces a highly consistent stimulus. By flowing a given carrier gas at a given flowrate through a given odorant in this canister, the same end-vapor is achieved. Flow/concentration outcomes are provided for several odorants routinely used in olfactometry. This toot will enable researchers to generate known concentrations without expensive analytical machinery. (c) 2006 Elsevier B.V. All rights reserved.
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