OBJECTIVE: The prefrontal-parietal circuits have been reported to play an important role in
working memory. The purpose of this study was to use direct neuroimaging to address …

Objective: The goal of this study was to determine whether the regions of the prefrontal and
parietal cortices showing abnormal activation among individuals with schizophrenia during …

OBJECTIVE: The dorsolateral prefrontal cortex has been implicated in both working memory
and the pathophysiology of schizophrenia. A relationship among dorsolateral prefrontal …

Schizophrenia affects prefrontal and temporal-limbic networks. These regions were
examined by contrasting regional cerebral blood flow (rCBF) during executive (Wisconsin …

This study tested the hypothesis that dorsolateral prefrontal cortex deficits contribute to both
working memory and long-term memory disturbances in schizophrenia. It also examined …

Objective: Hypofrontality is a common but not invariable finding in schizophrenia.
Inconsistencies in the literature may reflect, in part, the fact that abnormal physiological …

OBJECTIVE: Neuropsychological studies have shown that deficits in verbal episodic
memory in schizophrenia occur primarily during encoding and retrieval stages of information …

Working memory dysfunction is a prominent impairment in patients with schizophrenia. Our
aim was to determine cerebral dysfunctions by means of functional magnetic resonance …

INTRODUCTION: Studies of prefrontal cortical (PFC) function in schizophrenia have been
inconsistent, with studies showing both increased and decreased PFC activation compared …

BACKGROUND: A large number of studies suggest the presence of deficits in dorsolateral
prefrontal cortex function during performance of working memory tasks in individuals with …