Patrick is being recorded using an EEG. the readings show a large proportion of synchronous activity, which would indicate that patrick is in Deep sleep.
This diagnostic procedure uses a number of electrodes that are positioned on the scalp just above the person's skull to capture the electrical activity occurring in the brain. The EEG, with its ability to detect electrical impulses, records the strength, duration, wavelength, and type of the electrical message to help determine whether or not neuronal transmission is normal or is experiencing a problem. One of the best diagnostic tools for detecting epilepsy, narcolepsy, and other brain disorders is the electroencephalogram (EEG).
To know more about EEG please click here : https://brainly.com/question/12897056
#SPJ4