ETT Gustometer 2 Quick Start Manual

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ETT Gustometer 2

Gustatory Stimulation

Manual and Tutorial

Revision 2021.1

Table of Contents

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Summary of Contents for ETT Gustometer 2

Page 2: Table Of Contents
Table of Contents Table of Contents ............................2 Setup ................................3 Safety Information ..........................3 Warnings ..............................3 Contact to ETT............................3 Connecting the Device ..........................3 Before the first power up ........................3 System components ..........................3 System Overview ............................ 6 Tastant setup ............................
Page 3: Setup
Before the first power up After receiving and unboxing the device inspect the ETT Gustometer 2 for visible damage to both the package and the actual device. Do not power on the device if there are visible damages or audibly dislodged parts within the case.
Page 4 System components 1. The ETT Gustometer 2 Figure 2 - Front panel with touch-screen and interface connectors Figure 3 - Back panel with pumps and inlet and outlet tubing, and air pump output 2. Set of food safe bottles for the stimulants (flavored fluids), up to 8 at a time can be stored on...
Page 5 8. MRI RF Trigger converter (converts an optical trigger from the RF cabinet of the MRI system to a TTL electrical signal that triggers the ETT Gustometer or ETT Olfactometer system; not needed on non-Siemens systems)
Page 6: System Overview
System Overview Figure 7 - ETT Gustometer 2 system overview with left - device (non-MR compatible) and right - applicator (mouthpiece) on subject (MR compatible)) The general system setup is shown in Figure 7. It is advisable to first setup the components unrelated to the subject and test everything is connected before setting up a research subject on the patient table.
Page 7: Tastant Setup
Tubing Is straight and the ends are cut at a straight angle Coil mounting (fMRI package) The ETT Gustometer 2 comes with a standard mounting system for a Siemens 12 and 20 channel clinical head coil mounts. For other systems we can create a custom fit solution upon request.
Page 8: Fitting A Subject
The first experiment Before the first experiment can be designed a few thoughts on your options with the ETT Gustometer. Stimuli will be delivered in form of drops of liquid through a system of Teflon tubing through an applicator into the subjects’...
Page 9: Typical Tastants
The ETT Gustatometer offers the option to deliver with 7 independent taste channels and one additional rinse channel. The experiment is be split into recurring cycles. During these cycles one will have a determined amount of tastant from one of the taste channels and one or more rinse cycles with a defined bolus.
Page 10 The Manual screen can be used for both priming as explained below as well as debugging and testing each channel. It also allows to switch to PC control via the ETT Direct Control. Figure 11 - Activate the Manual button the manually start and stop the peristaltic pumps at the currently set pump speed for each channel ©...
Page 11 As shown in Figure 11 the devices peristaltic pumps can be started and stopped by clicking the Manual button, so it lights up green. Then clicking on any of the channel buttons will start the pump at the currently set pump speed for the channel. No more than two pumps should be activated at one time. The pump speed can be changed on the Main screen.
Page 12 Figure 14 - Page 1 of the paradigm sequence slot overview with each number representing the stimulus channel that is called during the current loop iteration This form of configuring a paradigm is likely sufficient for most scenarios. The Gustometer 2 can also be controlled via connected PC if the necessary hardware upgrade was purchased. In that case any imaginable paradigm setup could be executed.
Page 13: Resources
A dust free environment is ideal. Cleaning procedures To guarantee optimal subject safety and a long lifespan of your ETT Gustometer 2 and the supplied equipment, we advise to follow these cleaning procedures. They apply...
Page 14 4. Activate Prime and Channel 8 (Flush) 5. Flush all channels with distilled water (dH2O) as follows: a. Detach reservoir-bottles b. Drain and rinse reservoir bottles c. Fill reservoir-bottles with 60-100 ml dH2O d. Re-attach reservoir-bottles e. In the PC/Manual/Prime mode of the touch-OS click START to pump distilled water through each line of the whole system f.
Page 15: Trouble Shooting
8. Repeat step 5 with no fluid reservoir connected to the inlet tubing to pump air. All water should be removed from the tubing this way Cleaning the mouthpiece (tastant applicator) The mouthpiece is in direct contact with the subject - strict hygiene is very important. The mouthpiece is designed with materials that allow disinfection with 70% alcohol.
Page 16 Figure 16 - The current file name is displayed next to the Paradigm ID. It can equal a subject identifier. File Manager can be used to create a new file Figure 17 - Click Create Data Folder to alter the current name. Then click Confirm to make the change. Data file Each paradigm will create a data file (dat.csv) in a subject folder on the connected USB flash drive that logs the device state about every 100 ms.