BrainCap MR
Overview


Superior solution for combining EEG & fMRI
The simultaneous recording of EEG & fMRI data is a well-established technique and our MRI product portfolio is the gold standard for this application. We strive to keep our products up to date to guarantee the highest safety and comfort of the test subject as well as outstanding data quality. As such, our BrainCap MR Rev. 3 has evolved in recent years to keep up with the demands of this dynamic research area.
Guaranteed Safety
- All electrodes in the BrainCap MR Rev. 3 are fitted with serial current-limiting resistors.
- Resistors are also placed inside the cap connector, acting like an additional RF-filter.
- ECG electrodes contain higher resistors than EEG electrodes to compensate for the technical characteristics of longer wires.
- Electrode cables are routed on the outside of the cap and secured to avoid loops and cable movement.
- The drop-down electrodes (e.g. ECG) are sheathed in plastic to avoid direct contact with the skin of the test subject.
- Wire length from electrode to the amplifier input is fixed to the minimal required length. [learn more]
- Cable tree exit point options available to fit with different MRI head coils.
- Clear MR labelling and safety guidelines in line with industry standards.
Guaranteed Comfort:
- Flat electrodes guarantee the comfort of the cap when the head is resting on the electrodes in a supine position inside the MR scanner.
- Empty electrode holders are added to caps with fewer than 64 channels to compensate for gaps between the electrodes and more evenly distribute pressure when the head is resting on the electrodes inside the MR scanner.
- A new cap cut has been adopted that encompasses more of the head, cheeks and neck. As a result, these caps fit better on more head shapes, and they rarely slip backwards from frontopolar sites.
Ease of Use
- Serial number sticker for easy tracking, assembly and layout questions.
- Colored electrode holders for easy access/clarification of assembly affiliation (e.g. 10-20, 10-10).
- Name labels on every electrode for easy recognition.
Additional options for the BrainCap MR
- Carbon Wire Loops
The BrainCap MR Rev. 3 can be equipped with carbon wire loops (CWL) for better correction of motions related artefacts. The CWLs are bipolar channels and the measurement requires a BrainAmp ExG. Further information can be found in this Press Release article as well as on our webinar channel.
- KRIOS Compatibility
KRIOS by Northern Digital Instruments NDI is an infrared camera system including software to digitize individual, real-life electrode positions. In order to work with KRIOS system the electrodes will be equipped with permanent reflectors in a high quality and precise manner.
- What happens to old electrode caps that do not meet the current safety standards?
If you have an older BrainCap MR (before April 2020) there is no urgent need to change your cap. You can continue to use your caps in your current setup as long as you continue to adhere to the safety guidelines. The only difference in the safety guidelines for older caps compared to the new ones is that the sequence limitations are stricter for old caps. This is due to the longer cable tree on older caps (see our MR sequence guidelines). It is worth considering replacing your old BrainCap MR with the latest version if you would like to benefit from the new safety standards and the increased flexibility regarding the MRI sequence limitations.
- Browse our customers' EEG/fMRI Publications
- Watch visual publication on "Best Current Practice for Obtaining High Quality EEG Data During Simultaneous fMRI"
- Register for one of our future EEG/fMRI Workshops
- more details on Multitrodes, the electrode type, that the BrainCap MR Rev. 3 is equipped with
- Request more information or a quote:
Click here
- Contact your local distributor:
Click here
Worldwide Caution:
Our products are scientific equipment for INVESTIGATIONAL USE ONLY! Medical use e.g. for diagnosis, treatment of disease or other such purposes is strictly forbidden.







Technical Specifications
Features | |
Standard cap | Sub-Inion fabric with integrated chin belt, white |
Fabric | Sizes 52 – 64: High precision fabric Sizes 50 and smaller: High comfort fabric |
Current limiting resistors [kOhm] | EEG channels: 10 (5 in electrode and 5 in connection box) ECG channel: 20 (15 in electrode and 5 in connection box) REF: 15 (10 in electrode and 5 in connection box) GND: 15 (10 in electrode and 5 in connection box) |
Electrode type | Multitrodes for MR with sintered Ag/AgCl sensors |
Electrode height [mm] | 3.5 |
Cable tree length [cm] (including connector box) |
31 |
MR safety label | MR conditional |
Compulsory choices | |
Size [cm] (circumference) |
Adult caps: 54, 56, 58, 60, 62, 64 Children caps: 50 (3-4 years), 52 (5-10 years), 54 (11-14 years) Infant caps: 36 (newborn), 38, 40 (3 months), 42, 44 (7 month), 46, 48 (2 years) |
Number of channels | 32 (for all sizes) 64 (for size 42 and larger) 96, 128 (for size 52 and larger) |
Cuts | Caucasian or Asian |
Cable tree exit point | CPz (standard) or FFCz (to fit Siemens 64 channel head coil) |
Additional Options | |
Carbon wire loops | 4 bipolar loops at left-frontal, right-frontal, left-parietal, and right parietal locations |
Krios compatibility | Permanent reflectors fitted to each electrode for compatibility with KRIOS by Northern Digital Instruments |
Miscellaneous | |
Suitable for use in MR scanner room | Yes, up to 3 T. MR conditional, i.e. guidelines must be observed |
Medical product | no |
CE marking | 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). The CE marking is based on the RoHS compliance. |
Brochures
Type: pdf Size: 4.1 MB
Type: pdf Size: 1.1 MB
Type: Weblink
Manual, Tutorials & Downloads (only for registered users)
Press Release Articles
12.2020
State of the art MR artifact handling with Carbon Wire Loops – a true market innovation!
by Dr. Tracy Warbrick & Dr. Michael Schubert
Type: Weblink
8.2020
Easycap EEG recording caps: An overview
by Falk Minow
Type: Weblink
4.2020
Exciting news for our EEG-fMRI customers: Update of MRI sequence conditions
by Dr. Tracy Warbrick
Type: Weblink
4.2020
Changes to the BrainCap MR
by Dr. Tracy Warbrick
Type: Weblink
4.2020
Coming soon: Carbon Wire Loops for the BrainCap MR
by Dr. Tracy Warbrick
Type: Weblink
4.2017
User Research: Understanding how sleep affects the human thalamus with EEG-fMRI
by Dr. Andrew Bagshaw
Type: Weblink
12.2016
User Research: EEG-assisted retrospective motion correction for fMRI (E-REMCOR) and automated implementation (aE-REMCOR)
by Jerzy Bodurka
Type: Weblink
3.2016
Simultaneous EEG and BOLD fMRI: Best setup practice in a nutshell
by Dr. Robert Störmer, Dr. Mario Bartolo, Dr. Stefania Geraci and Dr. Tracy Warbrick
Type: Weblink
4.2013
Best Current Practice for Obtaining High Quality EEG Data During Simultaneous fMRI
by Stefanie Rudrich
Type: pdf Size: 86.7 KB
9.2012
Did you know … about our “EEG/fMRI list of publications”?
by Stefanie Rudrich
Type: pdf Size: 201.2 KB
9.2012
Multitrode – the One-for-all-Purposes Electrode
by Falk Minow (EASYCAP GmbH)
Type: pdf Size: 553.1 KB
12.2010
Examining the benefits of sparce scanning and ICA-based ERP extraction in combined EEG-fMRI
by Aureliu Lavric
Type: pdf Size: 1.7 MB
10.2010
BrainAmp MR/MR plus compatibility with Philips 3T MRI officially confirmed
by Dr. Robert Störmer
Type: pdf Size: 1.5 MB
3.2010
EEG caps in a nutshell – New tutorial on how to select a suitable recording cap
by Katja Wust, Technical Writer
Type: pdf Size: 1.1 MB
9.2008
Important safety aspects for combined MR recordings
by Alexander Svojanovsky, General Manager, and Dr. Davide Riccobon, Product & Risk Manager
Type: pdf Size: 738.4 KB
Related Products
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Product Certificates
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Type: pdf Size: 354.1 KB