Acquisition in CURRY is enhanced with easier, more flexible, and more advanced tools for on-line data processing, with up to 512 channels and sampling rates up to 20 kHz.

CURRY will support EEG data acquisition with SynAmps 2/RT, Siesta, NuAmps, Neuvo, Grael, and E-Series amplifiers. Each amplifier has its own set-up image to ensure ease of use in setting the system.

Online Artifact Reduction for up to five types of artifact can be applied simultaneously, letting you verify the quality of the data while the subject is still connected. Artifacts include blinks, pulse artifact, MR gradient artifact, ballistocardiogram, and bad blocks. Reduction methods include Subtraction, Covariance, PCA, and ICA.

On-line averaging is enhanced, with the ability to extract both standard TTL triggered and conditional averages. Averages can be overlaid and compared directly on-line. Data processing can be applied and those optimized parameters can be saved for off-line application.

Impedance testing is available without interrupting data acquisition, and is provided in a simple visual display with values for each electrode.

Stream live to Matlab or via TCP/IP protocol (listener CURRY, Matlab, custom software), suitable for Brain Computer Interface (BCI) and related applications.

The start and stop of recording, and the impedance test procedure can be controlled through the stimulus presentation software.

CURRY data files are compatible with EEGLAB.

Convert recordings into other formats (such as EDF or CNT) from within the acquisition software.

CURRY Package Information Card

Quik-Caps are available in a variety of electrode configurations from 12 to 256 channels as well as in different sizes to meet every lab requirement.

Compumedics Neuroscan strongly recommends the use of Ag/Ag/Cl – sintered electrodes because of their durability and ease of cleaning and re-use. Each cap offering is designed to cover a specific range of sizes. Please specify the range you require.

Quik-Caps are available in a variety of electrode configurations from 12 to 256 channels as well as in different sizes to meet every lab requirement.

Compumedics Neuroscan strongly recommends the use of Ag/Ag/Cl – sintered electrodes because of their durability and ease of cleaning and re-use. Each cap offering is designed to cover a specific range of sizes. Please specify the range you require.

• No electronics in the MRI room to interfere with the static or gradient field; Neuroscan MicroMagLink RT systems have been proven in up to 4 Tesla systems.
• Compatible with most waveguide panel designs for easier installation with minimal modifications.
• All signal processing occurs outside the MRI room, preserving signal quality without compromises for MRI-compatible electronic design.
• Up to 20,000Hz sampling rates, allowing adequate sampling of the fastest frequencies.
• Multiple, advanced algorithms for artifact removal; user selectable and modifiable.
• SynAmps RT amplifiers provide DC-coupled recordings to ensure fast recovery from artifacts.
• SynAmps RT supports integration with the MRI clock to synchronize MRI and EEG samples, allowing improved artifact reduction, real-time artifact reduction, and acquisition with conventional sampling rates (500 and 1000Hz).
• Both ECG and plethysmography signals are recorded by the system, to optimally remove the ballistocardiogram artifact.
• On-line correction of pulse sequence artifact, allows you to view corrected data in near real time.
• Includes the advantages of the CURRY software platform with advanced signal processing and image integration.
• Compatible with most stimulus presentation systems providing a TTL or synchronization pulse output, enabling acquisition of ERPs simultaneous with the MRI.

A 256-channel SynAmps RT EEG system consists of four headboxes, with 280 channels in total.

A fully isolated, programmable bipolar excitation supply is also provided capable of supplying up to +/- 10VDC at 100mA to external bridges or measurement devices.

Maximum Sampling Rate: 20,000 Per Channel all channels driven
Faster sampling rates allow for more accurate sampling of the analog data being recorded. Signals such as Auditory Brain Stem Response require these faster rates, while typical ERP measures benefit from increased resolution.

Sampling Method: All Channels Sampled Simultaneously
Current technology eliminates the problems associated with sample and hold circuits. Utilizing a dedicated 24-bit A to D chip for each channel, the SynAmps RT enhances resolution and accuracy of each sample by ensuring a more valid measure of the data without decay or skew.

The 24-bit resolution allows for even the most subtle differences in amplitude to be measured accurately.

Recording Bandwidth: DC to 3500 Hz
Many slow potentials (i.e., P300, MMN, CNV) have components that can only be measured accurately using a DC amplifier. DC amplifiers are also not subject to the AC coupled, filter time constant that distorts recordings after an artifact. The high frequency end of the SynAmps RT’s range allows for more accurate recording of the fastest frequencies.

Active Noise Cancellation: Utilizing advanced driven reference technology
SynAmps RT sets a new standard for amplifier design, both in terms of safety and signal quality. Actively sampling environmental noise, and applying an antiphase signal to eliminate that noise, elevates the CMRR to unprecedented levels. This technology also provides increased patient protection.

Recording in fMRI Environments: Integration with the Micro MagLink RT System
The same amplifier that is used in standard recording environments can also be used to record EEG data in the MRI by interfacing to the Micro MagLink RT system. SynAmps RT was built with enough input range and accuracy to sample both the EEG and the fMRI artifact with sufficient resolution to remove the artifact and ensure the EEG is left intact.

>10 G Ohm Input Impedance: Allows standard impedance or fast preparation to be obtained
SynAmps RT allows you to choose on a subject by subject basis to prepare the scalp electrode impedance to the scientifically accepted levels or to record with high impedance, due to time or subject constraints. This flexibility allows you the option to maximize your data collection for each subject and collect the best data the situation allows.

Portability and Integration: Small Package, big features
Digital amplifiers are typically small and thus portable, but portability also means unpredictable environmental noise. SynAmps RT has built in technology to function even in the worst electromagnetic fields. Custom solutions such as Mu metal shielding are available to ensure data quality even under hostile conditions.

A 128-channel SynAmps RT EEG system consists of two headboxes, with 140 channels in total.

A fully isolated, programmable bipolar excitation supply is also provided capable of supplying up to +/- 10VDC at 100mA to external bridges or measurement devices.

Maximum Sampling Rate: 20,000 Per Channel all channels driven
Faster sampling rates allow for more accurate sampling of the analog data being recorded. Signals such as Auditory Brain Stem Response require these faster rates, while typical ERP measures benefit from increased resolution.

Sampling Method: All Channels Sampled Simultaneously
Current technology eliminates the problems associated with sample and hold circuits. Utilizing a dedicated 24-bit A to D chip for each channel, the SynAmps RT enhances resolution and accuracy of each sample by ensuring a more valid measure of the data without decay or skew.

The 24-bit resolution allows for even the most subtle differences in amplitude to be measured accurately.

Recording Bandwidth: DC to 3500 Hz
Many slow potentials (i.e., P300, MMN, CNV) have components that can only be measured accurately using a DC amplifier. DC amplifiers are also not subject to the AC coupled, filter time constant that distorts recordings after an artifact. The high frequency end of the SynAmps RT’s range allows for more accurate recording of the fastest frequencies.

Active Noise Cancellation: Utilizing advanced driven reference technology
SynAmps RT sets a new standard for amplifier design, both in terms of safety and signal quality. Actively sampling environmental noise, and applying an antiphase signal to eliminate that noise, elevates the CMRR to unprecedented levels. This technology also provides increased patient protection.

Recording in fMRI Environments: Integration with the Micro MagLink RT System
The same amplifier that is used in standard recording environments can also be used to record EEG data in the MRI by interfacing to the Micro MagLink RT system. SynAmps RT was built with enough input range and accuracy to sample both the EEG and the fMRI artifact with sufficient resolution to remove the artifact and ensure the EEG is left intact.

>10 G Ohm Input Impedance: Allows standard impedance or fast preparation to be obtained
SynAmps RT allows you to choose on a subject by subject basis to prepare the scalp electrode impedance to the scientifically accepted levels or to record with high impedance, due to time or subject constraints. This flexibility allows you the option to maximize your data collection for each subject and collect the best data the situation allows.

Portability and Integration: Small Package, big features
Digital amplifiers are typically small and thus portable, but portability also means unpredictable environmental noise. SynAmps RT has built in technology to function even in the worst electromagnetic fields. Custom solutions such as Mu metal shielding are available to ensure data quality even under hostile conditions.

A 64-channel SynAmps RT EEG system has one headbox, with 70 channels in total.

A fully isolated, programmable bipolar excitation supply is also provided capable of supplying up to +/- 10VDC at 100mA to external bridges or measurement devices.

Maximum Sampling Rate: 20,000 Per Channel all channels driven
Faster sampling rates allow for more accurate sampling of the analog data being recorded. Signals such as Auditory Brain Stem Response require these faster rates, while typical ERP measures benefit from increased resolution.

Sampling Method: All Channels Sampled Simultaneously
Current technology eliminates the problems associated with sample and hold circuits. Utilizing a dedicated 24-bit A to D chip for each channel, the SynAmps RT enhances resolution and accuracy of each sample by ensuring a more valid measure of the data without decay or skew.

The 24-bit resolution allows for even the most subtle differences in amplitude to be measured accurately.

Recording Bandwidth: DC to 3500 Hz
Many slow potentials (i.e., P300, MMN, CNV) have components that can only be measured accurately using a DC amplifier. DC amplifiers are also not subject to the AC coupled, filter time constant that distorts recordings after an artifact. The high frequency end of the SynAmps RT’s range allows for more accurate recording of the fastest frequencies.

Active Noise Cancellation: Utilizing advanced driven reference technology
SynAmps RT sets a new standard for amplifier design, both in terms of safety and signal quality. Actively sampling environmental noise, and applying an antiphase signal to eliminate that noise, elevates the CMRR to unprecedented levels. This technology also provides increased patient protection.

Recording in fMRI Environments: Integration with the Micro MagLink RT System
The same amplifier that is used in standard recording environments can also be used to record EEG data in the MRI by interfacing to the Micro MagLink RT system. SynAmps RT was built with enough input range and accuracy to sample both the EEG and the fMRI artifact with sufficient resolution to remove the artifact and ensure the EEG is left intact.

>10 G Ohm Input Impedance: Allows standard impedance or fast preparation to be obtained
SynAmps RT allows you to choose on a subject by subject basis to prepare the scalp electrode impedance to the scientifically accepted levels or to record with high impedance, due to time or subject constraints. This flexibility allows you the option to maximize your data collection for each subject and collect the best data the situation allows.

Portability and Integration: Small Package, big features
Digital amplifiers are typically small and thus portable, but portability also means unpredictable environmental noise. SynAmps RT has built in technology to function even in the worst electromagnetic fields. Custom solutions such as Mu metal shielding are available to ensure data quality even under hostile conditions.