High-performing EEG devices for neurosciences research field

The actiCHamp Plus is a versatile, all-in-one lab amplifier that offers a scalable and flexible solution for a broad spectrum of laboratory EEG recording applications. It is compatible with both active and passive electrode systems and operates on a robust lithium-ion battery known as the PowerUnit.

The device provides various electrode options to meet specific research needs:

- For optimal data quality, record with easy-to-prepare active electrodes such as actiCAP slim/snap or actiCAP Xpress Twist.

- Switch to passive sponge-based electrodes like R-Net for scenarios requiring high channel counts and rapid setup.

- Opt for gel-based passive electrodes with our fully customizable BrainCaps for tailored solutions.

Key features of the actiCHamp Plus include:

- A modular design allowing for the recording of 32 to 160 channels.

- Eight additional AUX channels to incorporate extra physiological sensors.

- A sampling rate of up to 100 kHz.

- Comprehensive integration capabilities for multimodal recordings, including clock synchronization outputs for seamless integration with external devices like TMS and EMG, and the ability to forward incoming triggers to other signal acquisition systems such as fNIRS or Eye-tracking systems.

The PowerUnit, a lithium-ion battery technology, ensures a long battery life with a low self-discharge rate and extended recording times due to its higher battery capacity.

BrainAmp offers high-quality solutions for neurophysiology recordings with proven technical features.

The BrainAmp DC boasts a sampling rate of 5 kHz per channel, input noise of ≤ 1 μVpp, and a common-mode rejection (CMR) of ≥ 110 dB. It includes a 16-bit TTL trigger input for detecting markers from various stimulation modalities.

Powered by lead gel technology, the PowerPack fully eliminates 50/60 Hz mains noise, ensuring the highest quality EEG/ERP recordings.

It supports continuous acquisitions for up to 30 hours and allows for over 1000 recharging cycles. Labeled as "MR conditional," it is suitable for safe EEG recordings in MR scanners.

The system offers flexibility with stackable 32-channel units to expand up to 256 channels and compatibility with both active and passive electrodes for optimal data quality.

It can be powered by a battery or mains power supply.

The EEG amplifier systems are expandable with the BrainAmp ExG to record bipolar and peripheral signals in a compact setup, making it an integrated solution for multimodal recordings and a reliable choice for EEG-TMS co-registrations.

Dedicated versions are available for use in MR environments.

BrainAmp MR represents the pinnacle of EEG recording solutions within the MR environment.

The BrainAmp MR amplifiers, considered the gold standard for simultaneous EEG-fMRI co-registrations, have been available since the early 2000s. Their exceptional data quality, both in MR and lab settings, combined with user-friendliness and unmatched scientific and technical support, have established them as the preferred choice for researchers globally. This is evidenced by the numerous scientific publications citing BrainAmp MR amplifiers, a number that continues to rise.

Key technical specifications of the BrainAmp MR plus include:

- A sampling rate of 5 kHz per channel

- Input noise of less than or equal to 1 μVpp

- Common-mode rejection (CMR) of 110 dB or more

- Typical operating time of 30 hours between battery charges when used with a single amplifier

- Utilization of lead gel technology in the PowerPack

- Complete elimination of 50/60 Hz mains noise from power supplies, ensuring the highest quality EEG/ERP recordings

- Capability for continuous recordings up to 30 hours and over 1000 recharge cycles

- Designation as "MR conditional" for safe EEG recordings within the MR scanner

The amplifiers boast excellent data quality and adhere to high safety standards. They are shielded and can be placed directly inside the MRI chamber, behind the participant's head. The digitized signal is transmitted via a fiber optic cable to the USB interface (USB2 Adapter / BUA) in the control room, ensuring no artifacts are introduced during transmission. The short cable length from the electrode cap to the amplifier meets the most stringent safety criteria for participants and ensures superior data quality.

For added flexibility, multiple 32-channel units can be combined to increase the channel count to 128 in the MR environment, or even up to 256 channels in the lab setting. The amplifiers are compatible with passive gel-based electrodes (BrainCap MR) or passive sponge-based electrodes (R-Net MR) within the MR environment..

LiveAmp is a compact, wireless EEG amplifier designed for mobile applications.

It is a wearable device with 24-bit resolution, available in 8, 16, 32, and 64-channel configurations. Its wireless nature and internal data storage capability on an exchangeable memory card ensure unrestricted mobility.

The device is user-friendly and boasts specifications that are on par with high-end laboratory EEG systems.

Key Features:

- Wireless connectivity to any Windows® based recording computer.

- Indoor wireless range up to 10 meters and outdoor range up to 30 meters.

- Up to 3.5 hours of recording time on the internal battery, extendable with a power bank.

- Ultra-lightweight and compact design, with the 8 to 32-channel versions weighing 60 grams and the 64-channel version weighing 120 grams.

- Dimensions are 83 x 51 x 14 mm for the 8 to 32-channel versions, and 140 x 83 x 18 mm for the 64-channel version.

- Superior signal quality with 24-bit A/D conversion and a sampling rate of up to 1 kHz, noise level below 2 µVpp, and CMR over 80 dB at 50/60 Hz.

Versatility:

- Operates as either a referential EEG amplifier or a combined referential and bipolar EEG amplifier.

- Includes a built-in 3-axis accelerometer.

- Compatible with various electrode types including active electrodes (actiCAP slim/snap), gel-based passive electrodes (LiveCap), passive sponge-based electrodes (R-Net), and active dry electrodes (actiCAP Xpress Twist).

Expandability:

- The system can be augmented with a Sensor and Trigger Extension (STE) for additional physiological signals, featuring 8 trigger input and output ports and connections for up to 8 sensors.

Autonomy:

- Provides the option to wirelessly transmit recorded data to the recording computer or store it internally on an exchangeable memory card.