The American Psychiatric Association (APA) has updated its Privacy Policy and Terms of Use, including with new information specifically addressed to individuals in the European Economic Area. As described in the Privacy Policy and Terms of Use, this website utilizes cookies, including for the purpose of offering an optimal online experience and services tailored to your preferences.

Please read the entire Privacy Policy and Terms of Use. By closing this message, browsing this website, continuing the navigation, or otherwise continuing to use the APA's websites, you confirm that you understand and accept the terms of the Privacy Policy and Terms of Use, including the utilization of cookies.

×
ArticleNo Access

INTELLECTUAL IMPAIRMENT IN HEAD INJURIES

Published Online:https://doi.org/10.1176/ajp.100.4.480

1. This investigation is concerned with the frequency and nature of intellectual impairment in head injuries.

2. The methods for evaluation of defects are discussed with special reference to the two criteria used in this study: comparison of performance with estimated intelligence, and improvement on repeated examinations.

3. The following tests measured the impairment best: 100-7 test, pictorial absurdities, hole-in-the-board test, pictorial discrimination, naming of colors, and reading.

4. The mental functions affected are primarily: speed, judgment, and ability to keep up a sustained effort.

5. About one-half of all subjects suffering from head injury show slight intellectual defects. These become less marked with increasing remoteness from the time of the injury. If the impairment is reversible, the duration is usually a matter of less than 3 months.

6. The impairment seems to be related to the severity of the brain damage. The more serious the intellectual defect, the higher is the incidence of abnormal neurological signs.

Access content

To read the fulltext, please use one of the options below to sign in or purchase access.