Psychogenic dystonia involves involuntary muscle contractions that cause slow, repetitive movements or abnormal postures that are often severely painful. Onset may be abrupt or appear as part of a recurring attack. [ninds.nih.gov]

Other factors identified to relate to poor response included lack of insight/denial by patient or family member (8/9) and seeking disability (1). [e-sciencecentral.org]

This review encompasses historical and epidemiological data, clinical aspects, diagnostic criteria, treatment and prognosis of these rather challenging and often neglected patients. [ncbi.nlm.nih.gov]

Psychogenic Movement Disorders: These are an often neglected category of movement disorders. These are caused by psychological factors, and hence they were earlier classified as functional or non-organic movement disorders. [icliniq.com]