Article |

Pathologic Laughing and Crying Treated With Levodopa

Fukashi Udaka, MD; Satoshi Yamao, MD; Hiroshi Nagata, MD; Sigenobu Nakamura, MD; Masakuni Kameyama, MD
Arch Neurol. 1984;41(10):1095-1096. doi:10.1001/archneur.1984.04050210093023.
Text Size: A A A
Published online

• Levodopa or amantadine hydrochloride was administered to 25 patients with pathologic laughing and/or crying. This symptom was markedly improved in ten cases, most of which were devoid of a cortical atrophy or a periventricular lucency in computed tomographic scan and also devoid of a severe dementia or a disturbance in activity of daily living. The concentration of homovanillic acid in the CSF of the patients was significantly decreased, whereas the concentration of 5-hydroxyindoleacetic acid remained within the normal limit. Because part of pathologic laughing and crying seems to be caused by the decreased function of the dopaminergic neuron, levodopa or amantadine is worth trying.


Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours





Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).
Submit a Comment


Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.