EEG Terms| 99 Questions| And Answers

Agnosia - Inability to recognize objects or have knowledge of the objects through the senses Agraphia - Inability to write Alpha Coma - EEG pattern characterized by alpha frequency activity which is monotonous and widespread and shows no response to stimulation in a comatose patient Amplitude - the voltage of the EEG waveform or waveform complex measured in microvolts Low amplitude - under 20 microvolts Medium amplitude - 20 to 50 microvolts High amplitude - over 50 microvolts Alpha Rhythm - rhythm at 8 to 13 Hz occurring during wakefulness over the posterior regions of the head, generally with higher voltage of the occipital areas Aphasia - Loss of the ability to speak; can be expressive, receptive, or global. Broca's aphasia - expressive aphasia Wernicke's aphasia - receptive aphasia Apraxia - Inability to perform certain actions Asymmetry - EEG activity that is decreased or increased in one hemisphere when compared to the same region in the opposite hemisphere