Chapter 5: Variations of Consciousness Study Guide ? Consciousness: The awareness if internal and external stimuli. It includes (1) your awareness of external events, (2) your awareness of your internal sensations, (3) your awareness of yourself as the unique being having the experiences, and (4) your awareness of your thoughts about these experiences. Electroencephalograph (EEG): A device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surrounding face of the scalp. It summarizes the rhythm of cortical activity in the brain in terms of line tracings called brain waves. [cps = cycles per second = frequency] Beta: 13-24 cps. Normal waking thought, alert problem solving.