An fMRI investigation of cerebral state and trait markers of schizophrenia

Functional neuroimaging of working memory in schizophrenia: Task performance as a moderating variable.

“…This resulted in 29 studies in the analysis, using the following task types: (a) n-back tasks, (b) item recognition tasks (e.g., Sternberg tasks), (c) complex CPT tasks, (d) a heterogeneous group of delayed match-to-sample tasks, and (e) a single mental arithmetic task (Hugdahl et al, 2004). One doctoral dissertation (Mendrek, 2000) reported data for two independent samples of patient and control participants and so was included as two separate studies, resulting in a total of 30 studies in the…”

“…This resulted in 29 studies in the analysis, using the following task types: (a) n-back tasks, (b) item recognition tasks (e.g., Sternberg tasks), (c) complex CPT tasks, (d) a heterogeneous group of delayed match-to-sample tasks, and (e) a single mental arithmetic task (Hugdahl et al, 2004). One doctoral dissertation (Mendrek, 2000) reported data for two independent samples of patient and control participants and so was included as two separate studies, resulting in a total of 30 studies in the Increasing Working Memory Load Increasing DLPFC Activation analysis (the complete citation list for all studies in the analysis is available on the Web at http://dx.doi.org/10.1037/ 0894-4105.20.5.497.supp). Four of these studies indicated that a portion of their sample included patients with a diagnosis of schizoaffective disorder.…”