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EEG
After Hans Berger first deduced human electroencephalography (EEG) for the first time in Jena, Thuringia, in July 1924, it was to take another 10 years until his discovery "On Human Electroencephalography" (Arch f Psychiatr 87: 527-570, 1929) could be reproduced by the British neurophysiologist Edgar D. Adrian. For more than 60 years conventional EEG systems have been measuring electrical activity in the cerebral cortex in a frequency range of 0.3 – 70 Hz.
Our NEURO PRAX® full-band EEG systems make it possible for the first time to capture infraslow (0- 0.3 Hz) and ultrafast (80 – 1,200 Hz) EEG components. Physiological and pathophysiological EEG activity is detectable in these frequency ranges in spontaneous as well as in averaged EEG. The amplifier technology that we developed and patented allows EEG, EMG, ECG and polygraphic signals to be reliably recorded simultaneously and synchronously with very high accuracy.
Full-band EEG systems can be used in diagnosis during intracranial monitoring, functional magnetic resonance imaging, transcranial magnetic stimulation, transcranial direct current stimulation (tDCS), repetitive transcranial magnetic stimulation (rTMS) and neurofeedback of slow cortical potentials (SCP).
The EEG of the 21st century, as Ernst Niedermeyer describes it in his book "Electroencephalography" (2005), is a full-band EEG system produced where it was discovered, in the state of Thuringia in Germany.