Cognitive impairment and associated frontal lobe dysfunction characterize schizophrenia.
The letter fluency test (LFT) has been used as one of the most sensitive measures of the …

Functional neuroimaging studies to date have shown prefrontal dysfunction during executive
tasks in schizophrenia. However, relationships between hemodynamic response in …

Letter-or semantically-cued verbal fluency tests (VFT) induce different, but overlapping
activities in the prefrontal cortex (PFC) in healthy subjects. Functional differences between …

Cognitive impairments are considered as a core feature of schizophrenia and have been
reported in associated with dysfunction of the prefrontal cortex (PFC). The Tower of London …

Near-infrared spectroscopy (NIRS) has been applied to examine the possible functional
alternations during the performance of cognitive tasks in schizophrenia. With this technique …

In schizophrenia, dysfunction of the prefrontal cortex (PFC), regarded as a core feature of the
disease, has been investigated by different neuroimaging methods. Near infrared …

The relationship between cognitive impairments and social dysfunction in schizophrenia is
widely accepted. Neuroimaging studies in patients with schizophrenia have demonstrated …

Prefrontal cortex oxygenation changes in response to a verbal fluency task and a visual
spatial working memory task were investigated by functional near-infrared spectroscopy …

Near-infrared spectroscopy (NIRS) is an optical imaging method that allows non-invasive in-
vivo measurements of changes in the concentration of oxygenated (O2Hb) and …

Hypofrontality has been a major finding obtained from functional neuroimaging studies on
schizophrenia, although there have also been contradictory results that have questioned the …