EEG's

• what is an EEG?

  it measures electrical activity in the brain via electrodes that are fixed to an individuals scalp either individually or using a skull cap.
• what are EEG's used for?

  they are often used as a diagnostic tool for things like epilepsy, tumours or disorders of sleep.
• one strength of EEGs.

  it has high temporal resolution, at a resolution of a single millisecond.
• one strength of EEGs.

  it is useful in the diagnosis of certain conditions like epilepsy.
• one weakness of EEGs.

  the main drawback is in the generalised nature of the information received. its not useful for pinpointing exact locations of neural activitys.
• one weakness of EEGs.

  they cannot tell us about activity in the deeper parts of the brain.