Question

Problem 4. A. Describe both invasive and non-invasive electroencepholagraphy (EEG). Using EEG, you observe the following brain waves in a child (Figure 4) Childrens Hospitial of Chicogo Normal EEG Abnormal EEG Figure 4. Normal and Abnormal EEG B. What are some potential deficits that could cause abnormalities in the EEG response?

Answer 1

A) EEG is the recording of brain electrical activity. A set of electrodes are placed on the scalp of the patient. This technique is called the noninvasive EEG. This is the fastest and the cheapest technique.

Whereas in invasive EEG brain skull is opened and electrodes are placed directly on the exposed brain. The quality of the signal is much better but it requires surgery.

B) There are many conditions where EEG will be abnormal. Some of them are:

- epilepsy

-encephalopathies

-endocrine disorders- like thyroid diseases

- Dementia

-Alzheimers disease

- neurological Infection- like herpes simplex infection.

- various psychiatric disorders

- patients who uses benzodiazepines and diazepam for long duration.