Mass Hysteria in Le Roy, New York? | Mass Psychogenic Illness

This video answers the question: Was there really mass hysteria in Le Roy, New York? What is Mass Psychogenic Illness? Are Conversion Disorder and Collective Conversion Disorder real?







Capps, D. (2015). Teenage girls in rural New York: A case of conversion disorder. Pastoral Psychology, 64(1), 1–19.

Redinger, M. J., Crutchfield, P., Gibb, T. S., Longstreet, P., & Strung, R. (2018). Conversion Disorder Diagnosis and Medically Unexplained Symptoms. The American Journal Of Bioethics: AJOB, 18(5), 31–33.

Yam, A., Rickards, T., Pawlowski, C. A., Harris, O., Karandikar, N., & Yutsis, M. V. (2016). Interdisciplinary rehabilitation approach for functional neurological symptom (conversion) disorder: A case study. Rehabilitation Psychology, 61(1), 102–111.

Aybek, S., Nicholson, T. R., O’Daly, O., Zelaya, F., Kanaan, R. A., & David, A. S. (2015). Emotion-motion interactions in conversion disorder: An fMRI study. PLoS ONE, 10(4). Retrieved from

Ali, S., Jabeen, S., Pate, R. J., Shahid, M., Chinala, S., Nathani, M., & Shah, R. (2015). Conversion disorder—Mind versus body: A review. Innovations in Clinical Neuroscience, 12(5–6), 27–33. Retrieved from

Gulpek, D., Kaplan, F. K., Kesebir, S., & Bora, O. (2014). Alexithymia in patients with conversion disorder. Nordic Journal of Psychiatry, 68(5), 300–305.

Daum, C., & Aybek, S. (2013). Validity of the “drift without pronation” sign in conversion disorder. BMC Neurology, 13.

Kores, R. C. (2012). Chronic conversion disorder masking depression and anxiety: The case of Ms T. Journal of Psychotherapy Integration, 22(1), 7–13.

Bruni, A., Martino, I., Borzì, G., Gambardella, A., De Fazio, P., & Labate, A. (2017). The mystery of unexplained traumatic sudden falls. A clinical case that adds a new feasible cause. Neurological Sciences: Official Journal Of The Italian Neurological Society And Of The Italian Society Of Clinical Neurophysiology, 38(6), 1115–1117.

Jones, H. N., Story, T. J., Collins, T. A., DeJoy, D., & Edwards, C. L. (2011). Multidisciplinary assessment and diagnosis of conversion disorder in a patient with foreign accent syndrome. Behavioural Neurology, 24(3), 245–255.

Roelofs, K., Hoogduin, K. A. L., Keijsers, G. P. J., Näring, G. W. B., Moene, F. C., & Sandijck, P. (2002). Hypnotic susceptibility in patients with conversion disorder. Journal of Abnormal Psychology, 111(2), 390–395.

Espirito-Santo, H., & Pio-Abreu, J. L. (2009). Psychiatric symptoms and dissociation in conversion, somatization and dissociative disorders. Australian and New Zealand Journal of Psychiatry, 43(3), 270–276.

Verhoeven, J., Mariën, P., Engelborghs, S., D’Haenen, H., & De Deyn, P. (2005). A foreign speech accent in a case of conversion disorder. Behavioural Neurology, 16(4), 225–232.



Support Dr. Grande on Patreon:

mass hysteria,Le Roy,New York,Mass Psychogenic Illness,Conversion Disorder,Collective Conversion Disorder,functional neurological symptom disorder,malingering,factitious disorder,neurological,medical,psychological,absence of a medical explanation,pathophysiology,clinically significant distress,abnormal movement,special sensory symptom,speech symptoms,weakness or paralysis,mixed symptoms,acute episode,persistent,psychological stressor,faking symptoms,counselor,