PART I: HISTORY AND EPIDEMIOLOGY: Arthur L. Benton: Historical notes on post-concussion; Jess F. Kraus & Parivash Nourjah: The epidemiology of mild head injury; Bryan Jennett: Some international comparisons; PART II: EXPERIMENTAL MODELS AND NEUROPATHOLOGY: John T. Povlishock & Thomas H. Coburn: Morphopathological change associated; Ronald L. Hayes, Bruce G. Lyeth, & Larry W. Jenkins: Neurochemical mechanisms of mild and moderate head injury; PART III: CLINICAL MANAGEMENT, NEUROPHYSIOLOGY AND NEUROIMAGING: Ralph G. Dacey: Complications after apparently mild head injury and strategies of neurosurgical management; J.W. Snoek: Mild head injury in children; Howard M. Eisenberg & Harvey S. Levin: Computed tomography and magnetic resonance imaging in patients with mild to moderate head injury; Rudolf Schoenhuber & Massimo Gentilini: Neurophysiologic assessment of mild head injury; PART IV: NEUROPSYCHOLOGICAL SEQUELAE: Dorothy Gronwall: Cumulative and persisting effects of concussion on attention and cognition; Massimo Gentilini, Paolo Nichelli, & Rudolf Schoenhuber: Assessment of attention in mild head injury; Ronald M. Ruff, Harvey S. Levin, Steven Mattis, Walter M. High, Jr., Lawrence F. Marshall, Howard M. Eisenberg, & Kamran Tabbador: Recovery of memory after mild head injury; Harvey S. Levin, Linda Ewing-Cobbs, & Jack M. Fletcher: Neurobehavioural outcome of mild head injury in children; PART V: POST-CONCUSSION SYMPTONS: William H. Rutherford: Post-concussion symptons: Relationship to acute neurologic indices, individual differences and circumstances of injury; S.S. Dikmen, Nancy Temkin, & Gay Armsden: Relationship of psychosocial functioning and post-concussional complaints to neuropsychological recovery; PART VI: DISABILITY AND REHABILITATION: Philip Wrightson: Management of disability and rehabilitation services after mild head injury; Jeffrey T. Barth, Wayne Alves, Thomas V. Ryan, Stephen N. Macciocchi, Rebecca Rimel, John A. Jane, & William Nelson: Mild head injury in sports: Neuropsychological sequelae and recovery of function; Laurence F. Marshall & Ronald M. Ruff: Neurosurgeon as a victim; Wayne Alves: Facilitation of recovery by support, education and cognitive training.