EEG

• EEG

  Electroencephalogram

  • EEG measures electrical activity within the brain via electrodes usually in a skull cap
  • records brainwave patterns generated from thousands of neurones, showing overall brain activity
  • is used as a diagnostic tool
• +EEGs contributes to our understanding of the stages of sleep

  +high temporal resolution ( 1 millisecond)

  Therefore EEGs have real word usefulness.
• -EEGs produce generalised signal from thousands of neurones so it’s difficult to know the exact source of neural activity

  As a result, we can’t distinguish the activity of different but adjacent neurones.