title: Cognition in schizophrenia: core psychological and neural mechanisms.
abstract: The challenge in understanding cognitive impairment in schizophrenia is that people with this illness have deficits in an array of domains. Here, we briefly review evidence regarding the pattern of deficits within three domains: context processing, working memory and episodic memory. We suggest that there may be a common mechanism driving deficits in these domains - an impairment in the ability to actively represent goal information in working memory to guide behavior, a function we refer to as proactive control. We suggest that such deficits in proactive control reflect impairments in dorsolateral prefrontal cortex, its interactions with other brain regions, such as parietal cortex, thalamus and striatum, and the influence of neurotransmitter systems, such as dopamine, GABA and glutamate.
authors.affiliation: Department of Psychology, Washington University in St. Louis, Box 1125, One Brookings Drive, St. Louis, MO 63130, USA. dbarch@artsci.wustl.edu
authors.forename: Deanna M
authors.initials: DM
authors.lastname: Barch
authors.forename: Alan
authors.initials: A
authors.lastname: Ceaser
mesh_terms: D001931:Brain Mapping; D003071:Cognition / Q000502:physiology*; D004298:Dopamine / Q000502:physiology*; D006801:Humans; D008568:Memory / Q000502:physiology*; D017397:Prefrontal Cortex / Q000503:physiopathology*; D012559:Schizophrenia / Q000503:physiopathology*; D012565:Schizophrenic Psychology; D013788:Thalamus / Q000503:physiopathology*
chemical_list: D004298:Dopamine