 Multi-modal
biosignal parameter monitoring
The g.FEATUREmonitor is a non-invasive tool for the
investigation of brain functions and of the autonomous nervous system. It
allows to perform continuous monitoring of various physiological functions,
including heart-rate, heart-rate variability, blood pressure and cerebral
activity. Brain
function monitoring is based on a time- compressed amplitude integrated EEG
(aEEG). A compressed spectral array (CSA) presents frequency information of
the EEG activity.
|
Highlights
- continuous and non-invasive cerebral
and autonomous nervous system monitoring
- long term monitoring from hours to
days combined with monitoring of sudden changes within seconds
- fully equipped EEG and ECG
recording system
- tool for neurophysiological surveillance
- easy handling via touch screen
- comprehensive output can be interpreted even by non-experts
Easy usage and interpretation of results
In many cases the time compressed output can be interpreted in a simple and
effective manner even by non-experienced observers.
High quality EEG and ECG recorder
g.FEATUREmonitor is also a fully equipped digital EEG and ECG recorder. This
allows to investigate the raw-data on-line on the monitor and to display
trends, reactivity and sleep cycles. In this way seizure activity can be
identified which is not obvious in the aEEG. Additionally, statistical
analysis can be made from the recorded data.
Multi-channel recordings
 g.FEATUREmonitor is equipped with multiple EEG channels to investigate EEG
asymmetries between right and left hemispheres, to detect focal activities and
to act as fully equipped EEG recording system.
Comprehensive graphical report
The physiological parameters are presented to the expert in a
comprehensive manner. This makes the interpretation easier and allows to
present several hours of the recording on a single sheet of paper. The
report can be printed or sent to other experts via internet.
User-extensions
Due to its flexible design g.FEATUREmonitor can record other biosignals
like EMG, EOG, respiration and many more. Parameter extraction algorithms
can also be added to the system.
Example application
Measuring
heart and brain parameters in chess players
 Playing chess does not only require mental resources but also the
autonomous nervous system is influenced by stress factors of the game.
At the CHESS003 chess computer world championship 17 players
participated in the experiment. EEG signals from both hemispheres and
the ECG signal was recorded during an initial 3-min. resting period and
7 min. of playing against the computer (Junior 7). The Department of
Psychology, University of Graz, investigates the cortical activation in
chess players in a
recent project.
 For both EEG channels CSA (compressed spectral arrays) and CFM (cerebral function monitor) and from the ECG the
HR (heart rate) and HRV (heart rate variability) parameters were computed
online and displayed on the screen. During the initial resting period a
typical alpha power enhancement and a high HRV can be observed. When the
participant starts to play chess against the computer the alpha power in
the EEG and the HRV decreases indicating mental load and physiological
stress reaction.
Package includes
- g.FEATUREmonitor Software installed
on a PC with trolley or Notebook system
- amplifier system g.BSamp
- rechargeable battery with charging
device or medical mains power supply
- color printer
Accessories
|
