t the same time, Reynolds believed that positive and negative symptoms were independent of each other (Berrios, 1985). Expanding on Reynolds idea, Hughlings Jackson (1958) conceptualized positive symptoms as the result of the loss of higher inhibitory mechanisms that permitted excitation or the dis- charge of l

F72 repeat expansions not detected in a group of patients with schizophrenia. Neurobiology of Aging. doi: 10.1016/j. neurobiolaging.2012.08.011. Hughlings Jackson, J. (1958). Selected Writings of John Ilughlings Jackson, J.Taylor, G. Holmes, & EM.R.Washie (Eels). London: Hodder & Stoughton. ►lbach, B., Polja