g.Recorder

Calculated while recording

The Compressed Spectral Array (CSA) gives an exploratory view of signal features and data quality in long recordings. HR/HRV follows the autonomic nervous system through automatic R-wave detection in the raw ECG. Evoked potentials are calculated online with statistical analysis. In the Professional version, aEEG/CFM offers amplitude-integrated EEG monitoring with automatic pattern classification for the neonatal intensive care unit.

• CSA
• HR / HRV
• EP
• aEEG / CFM

EEG during TMS pulses

One important application is recording EEG while TMS pulses are delivered: a coil over the motor cortex produces a finger movement, and a somatosensory evoked potential (SEP) appears in the EEG. g.Recorder lets you choose a high sampling rate for every channel and record unfiltered; the exact timing of the TMS pulse comes in through the amplifier's TTL inputs. After recording, ERPs are calculated and artefact removal algorithms give clean EEG.

• TMS + EEG in sync
• SEP
• TTL triggering

Target and non-target EPs side by side

The EP viewer shows averaged data frames for every recorded analogue channel, over a window of pre-trigger, delay and post-trigger time. Target and non-target evoked potentials are shown at once, and statistically significant differences between them are calculated and highlighted.

• Multi-EP
• Pre / post trigger
• Statistical analysis

No separate stimulus software

Paradigms designed in the paradigm editor present stimuli to the subject while passing trigger information to g.Recorder; g.Recorder records biosignals and triggers together and produces real-time analysis and EP plots. No extra software such as Presentation or E-Prime is needed.

• Paradigm editor
• UDP integration
• Triggers in sync