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OPERATING INSTRUCTIONS
GSR-MR Module
Product revision 04
Accessories
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GSR-MR Module | Operating Instructions
Product revision 04
Copy right
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The reproduction, distribution and utilization of this document as well as the communication of its contents to
others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All
rights reserved in the event of the grant of a patent, utility model or design. Subject to change without notice.
For the latest version of this document, please visit www.brainproducts.com or contact your local distributor.
Published by Brain Products GmbH
Zeppelinstrasse 7
82205 Gilching
Germany
Published on* July 22, 2019 Document version 007
*Valid until publication of a new version of this document.
© 2019 Brain Products GmbH
Phone: +49 (0) 8105 733 84 - 0
Fax: +49 (0) 8105 733 84 - 505
Web: www.brainproducts.com
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Contents
About these Operating Instructions ................................................................................ 5
Preface ..........................................................................................................................9
Chapter 1 Safety considerations when using the GSR-MR Module........................... 13
Chapter 2 Configuring BrainVision Recorder ........................................................... 17
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1.1 General safety information ...................................................................... 13
1.2 MRI sequences........................................................................................ 14
1.3 Protection of test subjects, users and third parties................................... 14
2.1 Setting up a GSR-MR channel .................................................................. 17
2.2 Converting the sensor output voltage ...................................................... 19
2.3 Correcting the series resistances .............................................................19
Chapter 3 Installing the hardware components....................................................... 23
3.1 Installing the BrainAmp ExG MR, attachments and the GSR-MR Module ....23
3.2 Applying the GSR-MR electrodes.............................................................. 25
Chapter 4 Maintenance, cleaning and disposal .......................................................27
4.1 Maintenance ........................................................................................... 27
4.2 Cleaning ................................................................................................. 27
4.3 Disposal ................................................................................................. 27
Chapter 5 Terms of warranty ................................................................................... 29
Appendix A Product identification information ..........................................................31
Appendix B Technical data........................................................................................33
Appendix C Environmental conditions .......................................................................35
Appendix D Explanation of the markings on the devices ............................................37
Appendix E Note on the evaluation of GSR data .........................................................39
Appendix F Recommended reading ........................................................................... 41
Appendix G Ordering codes.......................................................................................43
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About these Operating Instructions
These Operating Instructions describe the GSR-MR Module.
The Operating Instructions are a component of the device and its accessories supplied by
Brain Products GmbH. They must be precisely adhered to in order to ensure that the device is
used as intended and operated correctly and to guarantee the concomitant safety of test subjects, users and third parties. Make sure that these Operating Instructions are always available
to users.
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The structure of the Operating Instructions
The Operating Instructions have five chapters:
Chapter 1 contains stipulations on how to perform combined EEG-fMRI measurements
safely with the GSR-MR Module.
Chapter 2 provides information about how to configure the Recorder workspace for the use
of the GSR-MR Module.
Chapter 3 describes how you must install the system's hardware components.
Chapter 4 contains notes on the maintenance, cleaning and disposal of the device.
Chapter 5 contains the terms of the warranty.
Target group of the Operating Instructions
The Operating Instructions are intended for users in the psychological and neurophysiological
research area as well as physicians and medical experts. If the GSR-MR Module is to be used
in an MR environment, knowledge of how to perform MR measurements safely is vital.
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Conventions used in the Operating Instructions
The Operating Instructions use the following typographical conventions:
Italic Italic text is used to identify menus, menu commands, dialog boxes, options,
the names of files and folders and the labels on the devices. Italic font is also
used to highlight portions of running text.
Underscore Underscored text indicates a cross-reference or a web address.
The blue dot indicates the end of a chapter.
The Operating Instructions also use the following symbols to help you find your way around:
The Personal injury symbol indicates that incorrect use of the devices may result in a health hazard to the test subject, the user and/or a third-party. Incorrect use means non-adherence to the stipulations set out in these Operating
Instructions.
The Damage to property symbol indicates that the incorrect use of the devices may bring about a risk of damage to property.
The Stop symbol indicates that you should not carry out a particular action.
A note draws your attention to important (technical) information.
A cross-reference refers to a section of these instructions or an external document that has a bearing on the running text at this point.
A tip gives you advice, recommends a particular approach or draws your attention to an interesting aspect.
The New symbol indicates that new material has been added at this point.
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Revision history
Page . . . . Status. . . . . . . Subject
11 . . . . modified . . . . BrainAmp EXG has been added to permitted products.
14 . . . . new Reference added for Performing simultaneous EEG-fMRI measurements
manual which should be referenced for safety information.
24 . . . . New . . . . . . . . New image added to view of installation
37 . . . . modified . . . . Product identification for MR Conditional, MR Safe and MR Un-
safe have been modified to ASTM international standard,
37 . . . . new . . . . . . . . RoHS compliance statement added
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Reporting errors and support
We would ask you to report without delay any error you find in this document, any fault on the
products or any malfunction that you observe when using this product. To do so, please contact your local dealer, who will also assist you in general questions about the product.
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Preface
Skin resistance is an extremely informative indicator of consciousness and emotional states
such as stress or pain. For decades, the measurement of skin resistance has been one of the
most frequently employed procedures in the field of psychophysiological research and is also
used as a psychiatric research method.
Our GSR-MR Module has been specially developed for combined EEG-fMRI measurements in
MR scanners. As part of our MR product line, it is used in combination with the BrainAmp ExG
MR amplifier and the ExG AUX Box.
The GSR-MR Module converts the electric conductance of the skin to a voltage recorded by a
bipolar amplifier input. It is used together with skin electrodes that are brought into contact
with the test subject. The contact between the electrodes and the skin of the test subject is established by means of a special gel. Use with invasive and subcutaneous electrodes is prohibited.
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The GSR-MR Module is compact, optimally shielded against the influence of the strong electromagnetic fields that develop in MR scanners and, thanks to its high level of common-mode rejection, guarantees top-quality data. It also offers a very high level of safety and ensures that
the test subject remains perfectly comfortable.
Intended use
As of September 30th, 2013 the GSR-MR Module is not a medical device anymore and may be
used in the context of non-medical applications in order to carry out fundamental or applied
research on the basis of neurophysiological methodology and data.
Use of the GSR-MR Module for diagnosis, therapy, monitoring of vital physiological processes
(such as cardiovascular functions etc.) or other medical purposes is expressly forbidden.
The GSR-MR Module is intended to be used for acquiring and transmitting changes in skin resistance.
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10 Preface
Correct Use
The GSR-MR Module is permitted to be used by users in the psychological and neurophysiological research area as well as physicians and medical experts.
The GSR-MR Module is not permitted to be used by
unqualified persons (e.g. laymen),
persons who cannot read (e.g. due to visual impairment) or understand (e.g. due to a lack
of language skills) the Operating Instructions.
The GSR-MR Module can be used to record neuro-/electrophysiological signals from healthy
and sick adults, children and animals.
The use of the GSR-MR Module for medical purposes is not permitted.
The GSR-MR Module is permitted to be used in the following environments: Research institutes, and other non-medical environments (e.g. at home), hospitals, clinics and other medical
environments, provided that all the other stipulations regarding correct use are met and that
the devices are used in accordance with its intended use.
The GSR-MR Module is not permitted to be used in the following environments:
vicinity of explosive gases as may be the case in operating theaters, for example,
oxygen enriched atmospheres.
The user is solely liable for any risks to test subjects associated with the investigation, if the
device is not used in accordance with the correct use.
All versions of GSR-MR Module that have been released into the market as medical products
do remain medical products. Brain Products will continue to treat them as medical products
(i.e. to perform post market surveillance, for example) until the end of their service life.
The user should however be aware that if a former GSR-MR Module version that was a medical
device is replaced by a newer version that is not a medical device anymore, the terms and conditions of the new GSR-MR Module version are effective only from then on.
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Use together with other products and components
The GSR-MR Module is permitted by Brain Products to be combined with the following product
families:
Product Manufacturer
BrainVision Recorder Brain Products GmbH
BrainAmp EXG* Brain Products GmbH
BrainAmp ExG MR amplifiers Brain Products GmbH
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GSR-MR electrodes (Ag/AgCl) EasyCap GmbH
ExG AUX Box EasyCap GmbH
Electrode Gel for GSR Discount Disposables
* Outside the MR environment ONLY.
Beside this general statement about permitted product combinations, the user must check, if
all stipulations of each product (e.g. regarding its MR compatibility) are fulfilled for the specific
combination and purpose of application (i.e. intended use and correct use).
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Chapter 1 Safety considerations when using the GSR-MR Module
The GSR-MR Module is a part of our MR product line and is subject to the same safety regulations and restrictions on use as all the other components of the BrainAmp MR amplifier system.
Information on the general functionality and operation of the BrainAmp and BrainAmp MR series of amplifiers can be found in the Performing simultaneous EEG-fMRI measurements -
Conditions for the safe use of BrainAmp MR amplifiers and accessories in the MR environ-
ment manual available for download on the Brain Products website at https://www.brainprod-
ucts.com/downloads.php.?kid=5#dlukat_84.
Read the following safety information carefully. It will help prevent personal injury and damage
to property. The manufacturer shall not be liable in the event of any failure to observe the safety information set out below.
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There are a number of hazards of a general nature associated with the operation of MR scanners. These hazards are described in the MR scanner documentation. In combination with other physiological measurements (such as GSR), a number of specific safety aspects have to be
taken into account. These Operating lnstructions deal only with these specific aspects. It is
therefore essential that you also read the safety information provided by the manufacturer of
the MR scanner.
We assume that users know how to record psychophysiological signals and work with MR
scanners safely and that they know enough physics to be able to carry out reliable combined
EEG-fMRI measurements.
1.1 General safety information
Use the GSR-MR Module only in combination with the BrainAmp ExG MR amplifier and the ExG
AUX Box. These devices offer electrical isolation and can be used in MR scanners.
Only use the GSR-MR Module and its accessories in the environment for which it is intended
and in accordance with its intended use.
The GSR-MR Module is intended for use in MR environments up to 3T.
It is possible to use it outside MR environments, and it is effective for test measurements to
establish experimental paradigms.
Under no circumstances should you do any of the following:
Never open the device.
Do not repair the device yourself.
Do not connect the device to electrical connections which are not compliant with the rele-
vant standards.
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14 Chapter 1 Safety considerations when using the GSR-MR Module
Avoid exposure to direct sunlight, high levels of humidity or liquids.
Do not use the GSR-MR Module together with a defibrillator.
1.2 MRI sequences
For more detailed information on the safe use of MRI sequences, refer to the Performing simultaneous EEG-fMRI measurements manual which is available for download on the Brain Products website at https://www.brainproducts.com/downloads.php?kid=5#dlukat_84.
1.3 Protection of test subjects, users and third parties
Ensure that there are no loops or kinks in the feed lines and electrode cables. Keep cables
straight and taut.
Ensure that the test subject does not come into contact with the cables (ribbon cable, powersupply cable, 5-pin connecting cable for connecting the GSR-MR Module, electrode cables; see
Figure 3-1 on page 24 ). The electrode cables must always be fed through the spiral hose.
Use only the cables and electrodes provided.
Always explain to the test subjects that it is theoretically possible for the electrodes and cables
to heat up.
Ensure that test subjects can always make themselves heard to the person running the experiment and have some other means of attracting attention such as a bell or alarm.
In extremely rare cases, the electrode materials or electrolyte gel can cause skin irritations.
Skin irritations become noticeable when burning, itching sensations occur. In such cases, stop
using the device and carefully remove the electrodes and all remaining gel.
If a test subject reports feeling this kind of discomfort, always have the subject medically examined immediately and, if necessary, ensure that the subject receives appropriate care.
Inform Brain Products GmbH immediately to clarify the exact circumstances in which the discomfort occurred and prevent the same thing from happening in the future. You will find the
contact details for our technical support team on page 7 of these instructions.
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Protection of test subjects, users and third parties 15
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16 Chapter 1 Safety considerations when using the GSR-MR Module
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Chapter 2 Configuring BrainVision Recorder
BrainVision Recorder supports the GSR-MR Module from Version 1.10. In order to obtain correct
electric conductance values in μS when carrying out measurements using the GSR-MR Module,
you have to:
Convert the output voltage of the GSR-MR Module from mV to μS.
Compensate the series resistances of the skin electrodes (5 kOhm per electrode).
To do this, you must make various settings in the Recorder workspace. These are described below. You will find detailed information on setting up a workspace in the Recorder in the associated User Manual.
Make sure that the most recent version of the Recorder is installed on your computer. If you
need it, the most recent version can be downloaded from our Web site under the link
http://www.brainproducts.com/downloads.php?kid=2.
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2.1 Setting up a GSR-MR channel
Proceed as follows to set up a GSR-MR channel:
1 On the Recorder menu bar, choose File > New Workspace. A dialog box appears.
2 Once you have made the settings you require on the first page of the dialog, you proceed
to the New Workspace - Amplifier Settings page of the dialog.
3 Click the Scan for Amplifiers button on this page (see Figure 2-1).
Figure 2-1. BrainVision Recorder, selecting the amplifier
4 The connected amplifier is displayed in the Scanned Amplifier(s) text box (see Figure 2-2).
If you are using more than one amplifier (a BrainAmp MR together with the BrainAmp ExG
MR, for example), you must connect the amplifiers in such a way that the BrainAmp ExG MR
always appears at the end of the Scanned Amplifier(s) list. If you do not do so, a warning
message will be issued.
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18 Chapter 2 Configuring BrainVision Recorder
Figure 2-2. Displaying the connected amplifier in the Recorder
5 Enter the total number of channels required in the Number of Channels text box.
Checking the Use ExG AUX box activates sensor support (unit conversion) for the BrainAmp
ExG MR channels. The resolution specified under Master Settings is deactivated for the
ExG AUX Box channels, and DC mode is activated for all AUX channels (see Figure 2-3).
Figure 2-3. Activating the ExG AUX Box and specifying the number of channels
6 In the Phys. Chn. column of the channel table, specify the slot for the GSR-MR channel in
the ExG AUX Box. In our example, this is slot 16 (see Figure 2-4).
Figure 2-4. Specifying the sensor slot
For the high cut-off filter you should generally select 250 Hz for measurements in MR environ-
ments. The sampling rate should be 5 kHz.
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2.2 Converting the sensor output voltage
To convert the output voltage of the GSR-MR Module from mV to μS, check the Diff. Unit box for
the selected channel. The Unit, Gradient and Offset cells are now accessible (see Figure 2-5).
Make the settings in these cells on the basis of typical sensor properties:
Gradient = 25 mV/μS
Offset = 0 mV
Figure 2-5. Defining the conversion parameters
Converting the sensor output voltage 19
2.3 Correcting the series resistances
You activate the correction of the series resistances of the skin electrodes by clicking the name
of the corresponding channel in the Name column of the channel table.
The arrow of a drop-down list appears in the corresponding cell. In the drop-down list, choose
the entry GSR_MR_100_xx (see
The correction of the series resistances of 5 kOhm will not be error-free unless the channel
name is preceded by the prefix GSR_MR_100.
Figure 2-6. Choosing the name prefix "GSR_MR_100"
Figure 2-6).
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20 Chapter 2 Configuring BrainVision Recorder
You can now modify the ending of the channel name as you wish: You can replace _xx with an
ending of your choice such as, for example, _left, _right, etc. (see Figure 2-7).
Figure 2-7. Modifying the channel name (ending)
Conclude the configuration of the workspace as indicated in the Recorder User Manual. In the
Software Filters dialog box, ensure that the Raw Data Saving Filters check box is cleared (see
Figure 2-8).
Figure 2-8. Deactivating software filters for the raw data to be saved
Figure 2-9 summarizes the settings that you have to make for the workspace here.
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Figure 2-9. Workspace dialog with the settings that have to be made
Correcting the series resistances 21
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22 Chapter 2 Configuring BrainVision Recorder
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Chapter 3 Installing the hardware components
Before you begin to use the GSR-MR Module in the MR scanner, we recommend that you always
carry out several test measurements on the test subject in accordance with your experimental
paradigm outside the MR environment. Familiarize yourself with the signals that are expected
as well as with how to install the devices and how to position and attach the electrodes.
Note that it is considerably easier to analyze the signals if you use a volume trigger and the
SyncBox. The SyncBox is used to synchronize the clock cycle of MR data acquisition by the
BrainAmp ExG with the clock cycle that controls the MR scanner's gradient switching system.
The aim is to ensure the stability of GSR recording during MR data acquisition by means of
phase synchronicity between the two clock systems. For more detailed information on this
subject, see the Operating Instructions for the BrainAmp MR series of amplifiers.
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3.1 Installing the BrainAmp ExG MR, attachments and the GSRMR Module
Ensure that no loops are formed in the feed lines or electrode cables. Keep cables straight and
taut.
Only use the supplied connecting cables and electrodes because only these guarantee the
highest possible level of safety and optimum signal quality.
Take note of Figure 3-1 during the installation and proceed as follows:
1 Place the BrainAmp ExG MR and PowerPack at the foot end of the scanner table. Long con-
duction paths along the main field lines are thus avoided.
2 Connect the 5.6 V DC output on the PowerPack (2) to the PowerSupply Adapter of the
BrainAmp ExG MR (1) using the PowerPack connecting cable (3).
3 Connect the BrainAmp ExG MR (1) and the ExG AUX Box (6) using the 30 cm ribbon cable (4)
and the 30 cm power supply cable (5).
Only use the connecting cables provided. On no account use any longer cables that you
may already have.
4 Connect one end of the 5-pin connecting cable (7) to an AUX channel at the ExG AUX Box
(6).
For more information on the
connections on the GSR-MR
Module, see
You will find detailed information on the installation
and operation of the
BrainAmp ExG MR, ExG AUX
Box and PowerPack in the
Operating Instructions for the
BrainAmp MR series of ampli
fiers.
Appendix B.
-
5 Connect the other end of the 5-pin connecting cable (7) to the amplifier side of the GSR-MR
Module
6 Apply the electrodes (9) to the test subject ( see also Section 3.2 as of page 25).
7 Connect the electrodes (9) to the test subject side of the GSR-MR Module (8).
(8).
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24 Chapter 3 Installing the hardware components
Figure 3-1 depicts the following devices:
1 BrainAmp ExG MR 16
2 PowerPack
3 PowerPack connecting cable
4 Ribbon cable
5 Power supply cable
6 ExG AUX Box
7 5-pin connecting cable
8 GSR-MR Module
9 GSR-MR electrodes
Figure 3-1. View of installation
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3.2 Applying the GSR-MR electrodes
GSR measurements are usually carried out on the non-dominant hand. Ensure that the other
hand of the test subject remains free and that the test subject is not restricted from using the
alarm bell.
Apply the electrodes only to the test subject's hand. Do not apply the electrodes to other
parts of the body, invasively or subcutaneously.
Note Figure 3-2 when applying the GSR-MR electrodes, and proceed as follows:
1 Make sure that the GSR-MR electrodes are dry.
Applying the GSR-MR electrodes 25
2 Ensure that the test subject's skin is clean.
However, do not clean the skin too intensively using soap, a brush or alcohol, because this
can corrupt the results of the measurements.
Ensure that the test subject's hands are well supplied with blood and warm. If the test subject has cold hands, this reduces the quality of the measured data.
3 Fill the concave (hollow) side of the electrodes with the supplied GSR electrode gel. EEG
electrode gel is not suitable for GSR measurements.
4 Use the adhesive rings provided to attach the electrodes to the palm side of the middle
phalanx of the index finger (A) and middle finger (B) as indicated in Figure 3-2.
Figure 3-2. Positioning of the electrodes on the non-dominant hand
5 Before you finish your preparations and leave the scanner table in its final position, check
the functioning of the intercom and alarm bell once more.
On completion of the installation of all components and before the MR scan, we recommend
that you carry out a final functional check to make sure the GSR-MR electrodes are not dislocated. The Recorder should be in Monitoring mode.
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26 Chapter 3 Installing the hardware components
Make sure that the test subject is relaxed before the measurement is carried out. After several
minutes of relaxation, the values measured should be distributed around a reliable baseline.
Make sure that the test subject is lying quietly and does not move her hand during measurement. This prevents artifacts from occurring.
The spontaneous fluctuations of the GSR signal should be visible (see Figure 3-3). To provoke
deflections of the GSR signal, you can ask the test subject to perform a Vasalva maneuver (forcible exhalation against a closed airway).
Figure 3-3. Example of a GSR curve during laser stimulation, Siemens 3T TIM Trio
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Chapter 4 Maintenance, cleaning and disposal
4.1 Maintenance
The GSR-MR Module is maintenance-free.
4.2 Cleaning
Before you clean the GSR-MR Module, disconnect it from the test subject and its attachments.
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Clean the GSR-MR Module, electrodes and lines only with a soft, damp cloth.
Ensure that the device, connectors and sockets do not come into contact with moisture.
Dry the GSR-MR Module carefully with a cloth after cleaning it.
Never clean the GSR-MR Module with rubbing alcohol or other such aggressive cleaning
agents.
Do not treat the module with chlorine or sterilize it.
If any of the pins are soiled or bent, return the GSR-MR Module to Brain Products.
4.3 Disposal
As soon as the device, accessories and cables have reached the end of their service life, dispose of them in accordance with the relevant national regulations. In Germany, for example,
the legislation governing electrical and electronic equipment (known as the ElektroG) is applicable. In the EU and EFTA, the WEEE Directive 2002/96/EC on Waste Electrical and Electronic
Equipment applies.
Do not dispose of your devices, accessories and cables with ordinary household waste.
Subject to the provision that only original equipment supplied by Brain Products is involved,
Brain Products will accept return of the equipment and handle disposal on request.
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28 Chapter 4 Maintenance, cleaning and disposal
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Chapter 5 Terms of warranty
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Brain Products GmbH provides the statutory guarantees for the GSR-MR Module and its attachments.
In Germany, a statutory minimum guarantee period applies for accessory components which
are not explicitly listed here.
Brain Products GmbH provides a warranty of 36 months as of the date of purchase in respect
of all devices labeled with a Brain Products serial number.
The power and connection cables provided, the GSR-MR electrodes, the consumables (batteries) and the BrainCap (MR) are excluded from the manufacturer's warranty.
Hardware and software upgrades are also not included in the warranty.
The warranty does not extend to any collateral or consecutive loss or damage of whatsoever
nature and/or any costs resulting from a defect or functional impairment (e.g. data loss).
Warranty claims expire in the following cases:
In the event of loss or damage due to the failure to exercise due care and attention and the
use of the products other than for their intended purpose.
This includes loss or damage caused by sand, dust, falling, impact, pressure, severe vibrations, external wear, overload, extreme heat or cold, excessive humidity, moisture or liquids of whatever nature, unstable power supply, incorrect transport, leaked batteries,
insufficient packaging on dispatch.
Guarantee
Warranty
Exclusion from warranty
In the event of interventions, modifications, changes, repairs and any other work of whatsoever type performed on the products by a person not authorized by the manufacturer.
If accessories or consumables other than OEM parts are used.
In the event of a failure to observe the current Operating Instructions.
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30 Chapter 5 Terms of warranty
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Appendix A Product identification information
Product designation: BrainVision GSR-MR Module
BrainVision Galvanic Skin Response Module for use in MR
scanners
Manufacturer: Brain Products GmbH
Zeppelinstraße 7
D-82205 Gilching (Munich)
Phone: +49 8105 73384 – 0
Fax: +49 8105 73384 – 505
Web site: https://www.brainproducts.com
Email: techsup@brainproducts.com
EMC testing: According to EN 61326-1
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Accessories: 5-pin connecting cable to connect the GSR-MR Module,
Adhesive rings
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32 Appendix A Product identification information
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Appendix B Technical data
Supply voltage: ± 5 V DC
Power consumption: < 0.5 mA
Measuring principle: Constant voltage, 0.5 V
Measuring range: 1 to 100 μS
Resolution: 0.2 nS
Absolute error: < 2 μS
Total electrode resistance: 10 kOhm
Dimensions (H x W x D): 22 x 30 x 45 mm
Weight: 20 g
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The input/output of the GSR-MR Module (see Figure B-1) is a Binder 719 5-pin female connector
(see Figure B-3).
The electrode inputs of the GSR-MR Module (see Figure B-2) are 1-pin DIN 1.5 mm safety sockets.
Each electrode in the GSR-MR electrode set is inserted in one of the sockets. There is no need
to worry about the polarity of the electrodes.
Figure B-1. Input/output of the GSR-MR Module (amplifier side)
Figure B-2. Electrode inputs of the GSR-MR Module (test subject side)
Connectors on the GSR-MR
Module
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34 Appendix B Technical data
Figure B-3. Pin assignment of the 5-pin socket
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Appendix C Environmental conditions
The following conditions must be satisfied for the use of the GSR-MR Module:
Operation Temperature range: 0 °C to 40 °C (32 °F to 104 °F)
Relative humidity: 30 to 90%, non-condensing
Atmospheric pressure range: 700 hPa to 1050 hPa
Transpor t Temperature range: -35 °C to 65° C (-31 °F to 149 °F)
Relative humidity: 30 to 90%
Atmospheric pressure range: 700 hPa to 1050 hPa
Storage Temperature range: -35 °C to 65 °C (-31 °F to 149 °F)
Relative humidity: 30 to 90%
Atmospheric pressure range: 700 hPa to 1050 hPa
35
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36 Appendix C Environmental conditions
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Appendix D Explanation of the markings on the devices
05
05
05
Observe the Operating Instructions.
This symbol indicates that defective devices must not be disposed of with
household waste. Dispose of in accordance with national regulations or return
the device and its accessories to the manufacturer.
MR Conditional: An item with demonstrated safety in the MR environment within defined conditions. At a minimum, address the conditions of the static magnetic field, the switched gradient magnetic field and the radio frequency fields.
Additional conditions, including specific configurations of the item, may be required.*
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MR Safe: An item that poses no known hazards resulting from exposure to any
MR environment. MR Safe items are composed of materials that are electrically
non-conductive, nonmetallic, and nonmagnetic.*
MR Unsafe: An item which poses unacceptable risks to the patient, medical
staff or other persons within the MR environment.*
The Brain Products GmbH confirms the electromagnetic compatibility (EMC) of
this product according to the Directive 2014/30/ EU of the European Parliament
and of the Council of 26 February 2014 on the harmonisation of the laws of the
Member States relating to electromagnetic compatibility.
The Brain Products GmbH confirms the RoHS compliance of this product
according to Directive 2011/65/EU of the European Parliament and the Council
of 8 June 2011 on the restriction of the use of certain hazardous substances in
electrical and electronic equipment (recast published in the Official Journal of
the European Union on 1 July 2011) as well as all its amendments up to and
including the Commission delegated directive (EU) 2015/863 of 31 March 2015
(published in the 0fficial Journal of the European Union on 4 June 2015).
* Definitions from ASTM international standard F2503-13
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38 Appendix D Explanation of the markings on the devices
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Appendix E Note on the evaluation of GSR data
The visual analysis of GSR data is facilitated by the grid view in the BrainVision Analyzer.
Depending on the environmental conditions and configuration, the GSR-MR Module produces
a signal that is largely free of scanner artifacts.
If you record EEG, EMG or ECG data at the same time as the GSR data, you can use the
Analyzer's MR Correction transform to correct the scanner artifacts in the GSR signal in the
same way as for the remaining data. As with any other data type, there may be a loss of precision when the Store Compressed Data in History File option is used. We therefore advise you
to select an alternative method of saving the data.
Figure E-1. Do not use the "Store Compressed Data in History File" option
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Experience shows that pulse artifact correction is not necessary.
The GSR signal can be filtered using a 1 Hz low-pass filter in accordance with the typical bandwidth.
If you want to further process the GSR data using software from a third-party supplier, it is usually sufficient to reduce the sampling rate of the GSR data to 10 Hz.
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40 Appendix E Note on the evaluation of GSR data
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Appendix F Recommended reading
W. Boucsein, D.C. Fowles, S. Grimnes, G. Ben-Shakhar, W.T. Roth, M.E. Dawson, D.L. Filion,
Society for Psychophysiological Research Ad Hoc Committee on Electrodermal Measures.
Publication recommendations for electrodermal measurements. Psychophysiology. 2012
Aug;49(8), 1017-34.
W. Boucsein, Electrodermal Activity. Plenum Press, New York, 1992.
R. Stern, K. Quigley, W. Ray, Psychophysiological Recording. Oxford, Oxford University Press,
2000.
D.C. Fowles, M.J. Christie, R. Edelberg, W.W. Grings, D.T. Lykken, P.H. Venables, Committee
report. Publication recommendations for electrodermal measurements. Psychophysiology 18
(1981), 232-9.
41
A. Mobascher, J. Brinkmeyer, T. Warbrick, F. Musso, H.J. Wittsack, R. Stoermer, A. Saleh, A.
Schnitzler and G. Winterer, Fluctuations in electrodermal activity reveal variations in single trial
brain responses to painful laser stimuli. A fMRI/EEG study, Neuroimage (2008).
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42 Appendix F Recommended reading
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Appendix G Ordering codes
System
GSR-MR set: BP-02810-MR
Components
GSR-MR Module: BP-02811-MR
GSR-MR electrode set (130 mm, 5 kOhm),
corresponds to (9) in Figure 3-1 on page 24: BP-02813-MR
43
Connecting cable for GSR-MR Module (60 cm, 5-pin),
corresponds to (7) in Figure 3-1 on page 24: BP-02812-MR
Electrode gel for GSR: BP-BM-60
Adhesive rings (inside diameter 8 mm, 100 units): FMS-060231
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44 Appendix G Ordering codes
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List of abbreviations
AUX .......................... Auxiliary
DC ............................ Direct current
DIN ........................... Deutsches Institut für Normung (German standards Institute)
EC ............................ European Community
ECG .......................... Electrocardiography
EFTA ......................... European Free Trade Association
45
EMC .......................... Electromagnetic compatibility
EMG ......................... Electromyography
GSR .......................... Galvanic skin response
MR ........................... Magnetic resonance
WEEE ........................ Waste Electrical and Electronic Equipment Directive
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46 List of abbreviations
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47
11 . . . . modified . . . . BrainAmp EXG has been added to permitted products.
14 . . . . new Reference added for Performing simultaneous EEG-fMRI measurements manual which
should be referenced for safety information.
24 . . . . New . . . . . . . . New image added to view of installation
37 . . . . modified . . . . Product identification for MR Conditional, MR Safe and MR Unsafe have
been modified to ASTM international standard,
37 . . . . new . . . . . . . . . RoHS compliance statement added
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