Get Alert
Please Wait... Processing your request... Please Wait.
You must sign in to sign-up for alerts.

Please confirm that your email address is correct, so you can successfully receive this alert.

Article   |    
Am J Psychiatry 1941;98:404-408.
View Author and Article Information

The Manhattan State Hospital, Ward's Island, N. Y., and the department of psychology, Graduate School, Fordham University, N. Y.

text A A A
PDF of the full text article.

Some correlation exists between the EEG findings and the clinical status of the patient in cases of general paresis, senile psychosis, psychosis with cerebral arteriosclerosis and alcoholic psychosis, Korsakoff type. This relationship is by no means an absolute one. There are cases, acute as well as chronic, in which clinically the patient shows psychotic manifestations and the EEG is normal. In acute cases of organic psychosis where the mental disorder develops rather rapidly, often slow waves can be observed, especially in patients who suffer from marked confusional states, and in cases in which the consciousness is narrowed. In acute cases with only moderate mental impairment, the EEG findings are often normal or borderline. In chronic cases some parallelism exists between the degree of deterioration and the EEG findings. Slow waves can be demonstrated in many cases. They are, however, patients of long standing mental deterioration who did not show noticeable corticoelectric changes. It is possible that if an organic process is very slow in developing, findings are missing for some time because the brain has had an opportunity to adapt itself to the damage. Another possibility is that in some of these cases the structural changes are not so much cortical but are localized in sub-cortical associative areas, producing inconspicuous EEG findings. We found that the electroencephalogram has a distinct diagnostic value in organic psychoses if definite slow waves from one to five per second were present, because in such cases a definite mental impairment was demonstrable, but if the electroencephalogram was normal this did not exclude the presence of an organic psychosis. Due to the fact that no absolute correlation exists between the electroencephalographic findings and clinical observations, the diagnostic value of this method is limited at present until we shall be able to work out a closer correlation between organic psychotic processes and corticoelectric phenomena. We agree fully with the statement made by P. A. Davis and H. Davis that: "Although the psychotic individual cannot be recognized by his EEG, nevertheless, as a group the psychotics have a significantly larger percentage of abnormalities in their EEG's than do normals." This is especially true of patients suffering from the organic type of mental disorders.

Abstract Teaser
Figures in this Article

Your Session has timed out. Please sign back in to continue.
Sign In Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content
Sign in via Athens (What is this?)
Athens is a service for single sign-on which enables access to all of an institution's subscriptions on- or off-site.
Not a subscriber?

Subscribe Now/Learn More

PsychiatryOnline subscription options offer access to the DSM-5 library, books, journals, CME, and patient resources. This all-in-one virtual library provides psychiatrists and mental health professionals with key resources for diagnosis, treatment, research, and professional development.

Need more help? PsychiatryOnline Customer Service may be reached by emailing PsychiatryOnline@psych.org or by calling 800-368-5777 (in the U.S.) or 703-907-7322 (outside the U.S.).




CME Activity

There is currently no quiz available for this resource. Please click here to go to the CME page to find another.
Submit a Comments
Please read the other comments before you post yours. Contributors must reveal any conflict of interest.
Comments are moderated and will appear on the site at the discertion of APA editorial staff.

* = Required Field
(if multiple authors, separate names by comma)
Example: John Doe

Related Content
Dulcan's Textbook of Child and Adolescent Psychiatry > Chapter 34.  >
Topic Collections
Psychiatric News
PubMed Articles