title: Physiogenesis and psychogenesis in the 'post-concussional syndrome'.
abstract: The aetiological factors relevant to the development of post-concussional symptoms are reviewed. From the numerous studies carried out to date, it would appear that both physiogenic and psychogenic influences are important in their genesis. However, where mild-to-moderate injuries are concerned, organic factors are chiefly relevant in the earlier stages, whereas long-continued symptoms are perpetuated by secondary neurotic developments, often of a complex nature.
authors.affiliation: Institute of Psychiatry, Denmark Hill, London.
authors.forename: W A
authors.initials: WA
authors.lastname: Lishman
mesh_terms: D001924:Brain Concussion / Q000150:complications*; D006801:Humans; D019965:Neurocognitive Disorders / Q000209:etiology*; D013997:Time Factors