Carlos Morra and Ernst Franzek: Psychopathological Symptoms


Definition: Tactile experience of insects crawling over the skin, without the corresponding external stimulus (Encyclopedia Britannica 1797).


Exploration: The presence of formication can be established by interviewing the patient.




Encyclopedia Britannica. Dictionary of Arts, Sciences and Miscelaneous Literature, constructed on a Plan by Which The Different Sciences and Arts are Digested into the Form of Distinct Treatises or Systems. Third Edition. Edinburgh: A Bell & C Macfarqhal; 1797. p. 260.


April 5, 2018