Sang-Ick Han

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We recorded event-related potentials (ERPs) in patients with schizophrenia before and after treatment with quetiapine, to investigate this drug's effects on cognitive function. Auditory and visual oddball stimulus discrimination paradigms were presented to patients with schizophrenia (N=20) before and after 3months' treatment with quetiapine. The 2-stimulus(More)
Impulsivity is a heritable, multifaceted construct with clinically relevant links to multiple psychopathologies. We assessed impulsivity in young adult (N~2100) participants in a longitudinal study, using self-report questionnaires and computer-based behavioral tasks. Analysis was restricted to the subset (N=426) who underwent genotyping. Multivariate(More)
CD56 (Natural Killer T) cells showed a significant negative correlation with depressive symptom scale scores in acute and unmedicated patients with major depressive disorder. Decreased CD56 cells may reflect the severity of depressive symptoms but not the severity of anxiety symptoms in major depression.
This retrospective naturalistic study, conducted on patients with schizophrenia, was undertaken to examine the differences in the clinical characteristics of subjects who were treated with risperidone, but who were discontinued soon after administration, and those who were maintained on the drug for a long-term period. Data on 210 of 580 inpatients with(More)
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