Beta activity is commonly seen in the frontal and central regions of the brain. The amount of and voltage of beta activity is increased by the use of tranquilizers. EEG activity consisting of waves of approximately constant frequency. EEG activity in which no stable rhythms are present. Voltage Voltage refers to the average voltage or peak voltage of EEG activity.
Values are dependent, in part, on the recording technique.
Reduction of amplitude of EEG activity resulting from decreased voltage. Seen as an increase in voltage and regularity of rhythmic activity, often within the alpha, beta or theta range. Thought the term does not directly imply abnormality, much abnormal activity is paroxysmal. Morphology Morphology refers to the shape of the waveform. The shape of a wave or an EEG pattern is determined by the frequencies that combine to make up the waveform and by their phase and voltage relationships.