Electroencephalogram

File:Electroencephalogram.jpg

Template:Quote An Electroencephalogram, often abbreviated to EEG, is a method to record an electrogram of the electrical activity in a brain.

Overview

An EEG frequency of 0.1 to 0.9 hertz is found in near-comatose patients or those close to ascension. Template:Cite

History

When the Tok'ra Jolinar was inside Samantha Carter, an EEG detected both the Tok'ra and Carter's brain activity. Template:Cite Dr. Janet Fraiser examined EEG readings from Daniel Jackson after he had become addicted to the Light matrix hologram device, noting they were sporadic. Template:Cite Fraiser noted that the readings of a signal that the SGC received appeared to be like the readings from an EEG. She later ran an EEG scan on Carter and determined that an Entity was inhabiting Carter's body. Template:Cite When Cassandra was affected by Nirrti's retrovirus, EEG results showed her brain activity was increasing. Template:Cite An EEG was connected to Ayiana as her body began reviving itself. Dr. Fraiser later compared them to Cassandra's and Jack O'Neill's, when he had the Repository of Knowledge in his mind, and theorized that Ayiana was an Ancient. Template:Cite

Fraiser ordered EEG's for Jonas Quinn after a growth was discovered developing in his brain. Template:Cite Jackson was given an EEG which revealed his mind had multiple consciousnesses in it. O'Neill and Carter's EEG's were examined to see if they had other consciousnesses in their minds but they did not. Template:Cite Dr. Carolyn Lam had EEG's given to Jackson and Vala Mal Doran when they were unconscious after using an Ancient Long-range communication device. Template:Cite Meredith Rodney McKay monitored John Sheppard's EEG readings when in a Virtual reality and later noted that they were showed delta waves indicating he was unconscious in the virtual world. Template:Cite Dr. Carson Beckett examines EEG readings from Elizabeth Weir after she had another consciousness imprinted on her and reported that the consciousness was only temporary and would fade after a few hours. Template:Cite

Dr. Carson Beckett had one of these transferred to the Pegasus Alpha Site when Michael Kenmore was being transported there for observation. Template:Cite When infected by Asuran Nanites, Elizabeth Weir had EEG readings of someone who was going about their daily life. Template:Cite