Document Detail


Methods for building an inexpensive computer-controlled olfactometer for temporally-precise experiments.
MedLine Citation:
PMID:  20688109     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Many human olfactory experiments call for fast and stable stimulus-rise times as well as exact and stable stimulus-onset times. Due to these temporal demands, an olfactometer is often needed. However, an olfactometer is a piece of equipment that either comes with a high price tag or requires a high degree of technical expertise to build and/or to run. Here, we detail the construction of an olfactometer that is constructed almost exclusively with "off-the-shelf" parts, requires little technical knowledge to build, has relatively low price tags, and is controlled by E-Prime, a turnkey-ready and easily-programmable software commonly used in psychological experiments. The olfactometer can present either solid or liquid odor sources, and it exhibits a fast stimulus-rise time and a fast and stable stimulus-onset time. We provide a detailed description of the olfactometer construction, a list of its individual parts and prices, as well as potential modifications to the design. In addition, we present odor onset and concentration curves as measured with a photo-ionization detector, together with corresponding GC/MS analyses of signal-intensity drop (5.9%) over a longer period of use. Finally, we present data from behavioral and psychophysiological recordings demonstrating that the olfactometer is suitable for use during event-related EEG experiments.
Authors:
Johan N Lundström; Amy R Gordon; Eva C Alden; Sanne Boesveldt; Jessica Albrecht
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2010-08-03
Journal Detail:
Title:  International journal of psychophysiology : official journal of the International Organization of Psychophysiology     Volume:  78     ISSN:  1872-7697     ISO Abbreviation:  Int J Psychophysiol     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-05     Completed Date:  2011-08-24     Revised Date:  2014-09-21    
Medline Journal Info:
Nlm Unique ID:  8406214     Medline TA:  Int J Psychophysiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  179-89     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier B.V. All rights reserved.
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MeSH Terms
Descriptor/Qualifier:
Adult
Computer-Aided Design / economics,  standards*
Computers / economics,  standards*
Evoked Potentials / physiology
Female
Humans
Male
Odors / analysis*
Pain Measurement / methods
Smell* / physiology
Software / economics,  standards
Time Factors
Young Adult
Grant Support
ID/Acronym/Agency:
R03 DC009869/DC/NIDCD NIH HHS; R03DC009869/DC/NIDCD NIH HHS
Comments/Corrections

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