1. American Psychiatric Association Diagnostic and Statistical Manual of Mental Disorders, American Psychiatric Association, Washington, DC., 1987.
2. ERP assessment of psychomotor retardation in depressives;Baribreau-Braun;Adv. Biol. Psychiatry,1983
3. Age, physical fitness and mental processing speed;Bashore;Annu. Rev. Gerontol. Geriat.,1989
4. Blackburn, I.M. Psychological processes in depression. In: E. Miller and P.J. Cooper (Eds.), Adult Abnormal Psychology. Churchill Livingstone, Edinburgh, 1988, pp. 128–168.
5. Perceptual and physiological dysfunction in depression;Blackburn;Psychol. Med.,1990