EEG

• What does an EEG measure?

  Electrical activity through electrodes attached to the scalp
• how is an EEG measured?

  the smallest feature electrical charges are detected by electrodes and graphed over a period of time
• what are the 4 types of EEG?

  alpha, beta, delta and theta
• what are the two distinctive states that EEG can produce?

  synchronised and desynchronised patterns
• what is a synchronised pattern?

  A recognisable wave form
• what is a desynchronised patten?

  there is no pattern
• what type of sleep is alpha associated with?

  light sleep
• what type of sleep is Thelma and delta waves associated with?

  deep sleep