1456524
doi
10.5281/zenodo.1456524
oai:zenodo.org:1456524
Alfine, Lorenzo
German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
Ohla, Kathrin
German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Institute of Neuroscience and Medicine (INM-3), Research Center Jülich, Jülich, Germany
Höchenberger, Richard
German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany; Institute of Neuroscience and Medicine (INM-3), Research Center Jülich, Jülich, Germany
A new gustometer: Template for the construction of a portable and modular stimulator for taste and lingual touch.
Andersen, Camilla Arndal
DuPont Nutrition & Health, Brabrand, Denmark; Aarhus University, Aarhus, Denmark
info:eu-repo/semantics/openAccess
Creative Commons Attribution Non Commercial 4.0 International
https://creativecommons.org/licenses/by-nc/4.0/legalcode
gustometer
taste stimulator
taste
stimulator
gustation
flavor
touch
<p>Taste research has been hampered by technical difficulties, mostly because liquid taste stimuli are difficult to control in terms of timing and application area. Exact stimulus control requires a gustometer; yet, existing devices are either not well-documented or rather inflexible. We designed a gustometer based on a computer-controlled, modular pump system, which can be extended through additional hardware modules, e.g. for heating of the stimuli or sending and receiving triggers. All components are available for purchase “off-the-shelf”. The pumps deliver liquids through plastic tubing and can be connected to commercially available or custom-made mouthpieces. We determined the temporal precision of the device. Onset delay showed minuscule variation within pumps (SD < 3 ms) and small differences between pumps (< 4.5 ms). Rise time was less than 2 ms (SD < 2 ms). Dosage volume bias was only 2%. To test whether the hemitongues could be stimulated independently, we conducted a behavioral experiment. 18 participants received tasteless stimuli to the left, right, or both sides of the tongue. The side of stimulation was correctly identified in 91% of the trials, indicating that the setup is suitable for lateralized stimulation. EEG responses to water and salty stimuli were recorded from two participants; the stimulation successfully evoked event-related responses, demonstrating the suitability of the device for use in electrophysiological investigations. We provide a Python-based open-source software package and a web interface to easily operate the system. We thereby hope to facilitate access to state-of-the-art taste research methods and to increase reproducibility across laboratories.</p>
Zenodo
2018-10-11
info:eu-repo/semantics/preprint
1313034
1579542080.307425
11972487
md5:ed192238d91017f45f3e90d2e030ab49
https://zenodo.org/records/1456524/files/Data_Timing_Measurements_Without_Refill.csv
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https://zenodo.org/records/1456524/files/Script_Timing_Measurements_Without_Refill_01.py
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https://zenodo.org/records/1456524/files/Andersen et al. - A new gustometer - Preprint.pdf
94753
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https://zenodo.org/records/1456524/files/Data_Behavioral_Experiment.csv
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https://zenodo.org/records/1456524/files/Data_Behavioral_Experiment_Readme.txt
public
10.5281/zenodo.1313034
isVersionOf
doi