Laboratory services

CoBra consists of three separate laboratories. The location of the laboratories, devices in these laboratories, and user fees/requirements are listed below. Furthermore, any projects conducted in these facilities require approval from the appropriate ethical board (the ethical board of Helsinki University Central Hospital).

Cognitive Brain Research Unit (CBRU)

CBRU hosts several electroencephalography (EEG) devices, a navigated transcranial magnetic brain stimulation (TMS) device, behavioral testing space and a plethora of devices for collecting data on autonomous nervous system activity and eye movements.


Haartmaninkatu 3, Helsinki


Two Biosemi ActiveTwo EEG devices with up to 256 channels. Several mobile EEG solutions (BrainProducts BrainAmp DC, QuickAmp, and LiveAmp) with up to 64 channels.

Nexstim NBS System 4.3 navigated TMS device with a 64-channel BrainAmp EEG device.

Best commercially available eye tracking device, EyeLink 1000 Plus, and a plethora of equipment for collecting data on autonomic nervous system (ANS) activity, to be used separately or coupled with EEG or TMS.

Behavioral and neuropsychological testing setups.

Analysis software

CBRU hosts an analysis room with a range of software for analyzing data obtained from various labs at CoBra. Lab users are offered multiple complete pipelines for data analysis from basic processing to statistics including a wide range of commercial and open source tools.

Lab users can use latest Besa tools with all modules, including Besa Research for basic processing and advanced source modeling, Besa MRI for individual head models, and Besa Statistics for advanced cluster permutation statistics for the sensor, source, and time-frequency data.

Also, Brain Vision Analyzer is available for EEG signal processing and analysis.

User access policy and contact information

For any questions, do not hesitate to contact CoBra coordinator Sanna Talola at sanna-kaisa.talola(at) Projects are allocated time first-come-first-serve basis and booking the lab(s) is done using an internal booking software. In case there is a shortage of lab time for all projects, please contact CoBra coordinator Sanna Talola at sanna-kaisa.talola(at)


For users affiliated with the University of Helsinki and with experience using EEG/TMS, the hourly costs for the use of the devices are 15€ per hour for EEG, eye-tracking, or ANS recordings (or combination of these). TMS sessions cost 50€ per participant with no time limits. For unaffiliated users and/or inexperienced users, please contact the CoBra coordinator so possible costs can be assessed based on the needs of the project.

Lab use fees do not include assistance on data analysis, nor do they include data storage.

Other requirements

For all new users, sessions with a resident lab engineer to introduce the user on how to operate the lab equipment are mandatory.


The BioMag Laboratory at Helsinki University Hospital is a platform for non-invasive functional studies of the human brain and heart where particularly methods based on electromagnetism are utilized and developed emphasizing clinical applications. In brief, the main facilities are magnetoencephalography (MEG), magnetocardiography (MCG), navigated transcranial magnetic stimulation (TMS) and near-infrared spectroscopic imaging (NIRSI).


BioMag Laboratory has just relocated to Meilahti Tower Hospital, Haartmaninkatu 4, 00290 Helsinki.


Elekta Neuromag Triux MEG system (306 channels) with an integrated EEG (up to 96 unipolar channels) and Elekta software for data analysis.

Nexstim NBS System 4.3 navigated transcranial magnetic brain stimulation (TMS) with Speech option (incl. video) and
Nexstim 3.2 navigated TMS (a.k.a. eXimia).
Both can be combined with Nexstim 64-channel EEG and electromyography (EMG).
Data analysis software from the manufacturer.

99-channel MCG device with 64-channel ECG system, and Electric Body Surface Potential Mapping system (BSPM; up to 128 unipolar channels).
Data analysis software.

Near-infrared spectroscopic imaging (NIRSI) on a collaborative basis.

Various equipment that can be coupled with aforementioned devices: Eye tracking, video recording time-locked with MEG, response system for MEG, electroneuromyography (ENMG) -systems, and a range of systems for auditory, somatosensory and visual stimulation.

Data analysis workstations with software for research and office posts.

Technical hardware workshop.

Two high-performance magnetically shielded rooms where the MCG and MEG instrumentation is situated (3 mu-metal and aluminum-shielding layers in each).

User access policy and contact information

After negotiating with the head of the BioMag Laboratory time can be booked using the BioMag reservation system, available for users via internet. In case the shortage of reasonable time for all projects occurs, the head of the BioMag Laboratory (hanna.renvall(at) should be contacted.


For research affiliated with the University of Helsinki, Helsinki University Hospital or Aalto University, the BioMag facilities are available without direct fees for users. For other organizations or users, please contact the head of the BioMag Laboratory (hanna.renvall(at)

When purchasing clinical MEG or navigated TMS recordings, please contact Hanna Renvall for arrangements.

Other requirements

To start a research project, a short general level presentation of the facilities and possibilities is available on request. For researchers affiliated with the University of Helsinki, Helsinki University Hospital or Aalto University, some support in carrying out measurements can be agreed on. Regarding needs for more extensive familiarization or analysis assistance, please contact the head of the BioMag Laboratory (hanna.renvall(at)


BABA (BAby Brain Activity) is the first clinical research center in Finland dedicated to studying baby brain activity using a wide range of behavioral and electroencephalography (EEG) methods.


Helsinki University Central Hospital, Children's Castle, Lastenlinnantie 2


Custom-built high-resolution EEG systems for infant and pediatric studies.

Two eye-tracking systems built for infant psychophysical and neurocognitive studies.

Neuropsychological testing setups.

Video-based infant mobility analysis.

User access policy and contact information

Due to the clinical nature of the BABA center, access to the laboratory and its use are always decided on a case by case basis. For access, contact sampsa.vanhatalo(at)


Due to the range of clinical populations studied in the center, costs can drastically vary between the studies. Once a study plan is finalized, the plan is reviewed by the BABA center personnel, after which fees are determined.

Other requirements

Clinical studies require the responsible researcher to be a qualified medical doctor.