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Chemical Senses Advance Access originally published online on August 16, 2006
Chemical Senses 2006 31(9):795-806; doi:10.1093/chemse/bjl021
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© The Author 2006. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org

A Comparison of Methods for Sniff Measurement Concurrent with Olfactory Tasks in Humans

Bradley N. Johnson1,2, Cheryl Russell3, Rehan M. Khan2 and Noam Sobel1,2,4

1 Joint Graduate Group in Bioengineering, UC Berkeley & UC San Francisco 2 Helen Wills Neuroscience Institute, 3 Department of Bioengineering, UC Berkeley 4 Department of Psychology, UC Berkeley

Correspondence to be sent to: Bradley N. Johnson, Helen Wills Neuroscience Institute, UC Berkeley, Berkeley, CA 94720, USA e-mail: bnjohnso{at}socrates.berkeley.edu

There is a growing appreciation for the role of sniffing in the formation of the olfactory percept. With this in mind, monitoring and measurement of sniffing is an important aspect of olfactory experiments. There are several methods for measuring human sniffs concurrent with odor delivery in olfactory experiments. Here, we set out to compare the temporal sensitivity and power of these different methods by applying them all simultaneously with an olfactory task. We discuss the advantages and disadvantages of each method and conclude in recommending the use of a nasal cannula linked to a pressure sensor whenever possible.

Key words: psychophysics, spirometer, respitrace, temperature, plethysmograph


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