The history of brain–computer interfaces (BCIs) starts with Hans Berger's analysis of the electrical action of the animal academician and the development of electroencephalography (EEG). In 1924 Berger was the aboriginal to almanac animal academician action by agency of EEG. By allegory EEG traces, Berger was able to analyze oscillatory action in the brain, such as the alpha beachcomber (8–12 Hz), aswell accepted as Berger's wave.
Berger's aboriginal recording accessory was actual rudimentary. He amid argent affairs beneath the scalps of his patients. These were after replaced by argent foils absorbed to the patients' arch by elastic bandages. Berger affiliated these sensors to a Lippmann capillary electrometer, with black results. More adult barometer devices, such as the Siemens double-coil recording galvanometer, which displayed electric voltages as baby as one ten thousandth of a volt, led to success.
Berger analyzed the accord of alternations in his EEG beachcomber diagrams with academician diseases. EEGs acceptable absolutely new possibilities for the analysis of animal academician activities.
Berger's aboriginal recording accessory was actual rudimentary. He amid argent affairs beneath the scalps of his patients. These were after replaced by argent foils absorbed to the patients' arch by elastic bandages. Berger affiliated these sensors to a Lippmann capillary electrometer, with black results. More adult barometer devices, such as the Siemens double-coil recording galvanometer, which displayed electric voltages as baby as one ten thousandth of a volt, led to success.
Berger analyzed the accord of alternations in his EEG beachcomber diagrams with academician diseases. EEGs acceptable absolutely new possibilities for the analysis of animal academician activities.
No comments:
Post a Comment