Yun-xiang Tang

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BACKGROUND Decreased P300 amplitude is one of the most consistent findings in patients with schizophrenia. However, whether prolonged P300 latency occurs in patients with schizophrenia, especially first-episode schizophrenia (FES) patients, remains controversial. METHODS A meta-analyses of P300 aberration in FES patients and healthy control(HC) group was(More)
BACKGROUND Several studies using functional magnetic resonance imaging (fMRI) and positron emission tomography (PET) have indicated that cognitive remediation therapy (CRT) might improve cognitive function by changing brain activations in patients with schizophrenia. However, the results were not consistent in these changed brain areas in different studies.(More)
BACKGROUND Few characteristic changes of linear electroencephalograph (EEG) have been reported in schizophrenia. The aim of the present study was to investigate the changes in temporal-spatial dimensional properties of EEG under different cognitive tasks in patients with schizophrenia. METHODS EEG was recorded by using EEG-1518K system and mapping system(More)
OBJECTIVE To explore N400 changes elicited by Chinese sentences ending with matching (congruent) or mismatching (incongruent) words in first episode schizophrenia. METHODS ERP (event-related potentials) component N400 were recorded by an ERP device in 56 first episode schizophrenia (FES) and 62 normal controls (NC) according to a paradigm of Chinese(More)
OBJECTIVE To explore the diagnostic application of receiver operating characteristic (ROC) curve of P300 amplitude and latency in schizophrenia. METHODS ROC curve of P300 amplitude and latency was plotted from 91 first episode schizophrenia (FES) and 141 normal controls (NC). Youden's index and distance were calculated in ROC curve to determine the(More)
OBJECTIVE To observe the characteristics of sensory gating P50 in generalized anxiety disorder (GAD) and in obsessive compulsive disorder (OCD) patients. METHODS Auditory evoked potentials P50 were recorded in 41 GAD patients, 69 OCD patients and in 58 normal controls by the conditioning/testing paradigm presented with auditory double clicks stimuli,(More)
BACKGROUND Prior research about N400 has been mainly based on English stimuli, while the cognitive processing of Chinese characters is still unclear. The aim of the present study was to further investigate the semantic processing of Chinese idioms. METHODS Event related potentials (ERP) component N400 was elicited by 38 pairs of matching (congruent) and(More)
OBJECTIVE To explore the variations and their activated brain areas of error-related negativity (ERN) in first episode schizophrenics. METHODS ERN was tested by an ERP device and their activated brain areas were compared in 58 first episode schizophrenics (FES) and 62 normal controls (NC) from March 2010 to February 2011. RESULTS (1) The ERN latencies(More)
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