Temporal Unfolding of Racial Ingroup Bias in Neural Responses to Perceived Dynamic Pain in Others / 神经科学通报·英文版

In this study, we investigated how empathic neural responses unfold over time in different empathy networks when viewing same-race and other-race individuals in dynamic painful conditions. We recorded magnetoencephalography signals from Chinese adults when viewing video clips showing a dynamic painful (or non-painful) stimulation to Asian and White models' faces to trigger painful (or neutral) expressions. We found that perceived dynamic pain in Asian models modulated neural activities in the visual cortex at 100 ms-200 ms, in the orbitofrontal and subgenual anterior cingulate cortices at 150 ms-200 ms, in the anterior cingulate cortex around 250 ms-350 ms, and in the temporoparietal junction and middle temporal gyrus around 600 ms after video onset. Perceived dynamic pain in White models modulated activities in the visual, anterior cingulate, and primary sensory cortices after 500 ms. Our findings unraveled earlier dynamic activities in multiple neural circuits in response to same-race (vs other-race) individuals in dynamic painful situations.

Self-reference Effect and Insight in Schizophrenia Patients / 中国临床心理学杂志

Objective:To investigate the relationship between insight and self of schizophrenia patients by paradigm of self-reference effect(SRE).Methods:16 schizophrenia patients with insight, 16 schizophrenia patients without insight and 16 normal controls matched with age and education degree were measured by SRE, and the results were analyzed.Results:SRE was shown in normal controls, and R performance on Self task was better than on other two tasks(P0.05).This means that SRE was not demonstrated in schizophrenia patients.There were significant differences between patients without insight and normal controls in R performance(P0.05).Conclusion:The profile of the results indicates that self-disturbance is shown in schizophrenia.There is no obviously correlation between insight and self-reference effect in schizophrenia patients.

PROPERTIES OF DENDRITIC FIELDS OF THE NEURONES IN THE VISUAL CORTEX AND DORSAL LATERAL GENICULATENUCLEUS OF CAT'S---A QUANTITATIVE ANALYSIS WITH BIAS / 解剖学报

Golgi and Golgi-Cox methods were used to stain the neurones in the II, III layers of 17, 18 areas, lateral suprasylvian area (LS area) of visual cortex and of dorsal lateral geniculate nucleus (LGNd). 298 cells in the II, III layers of 17, 18 areas, 310 cells in the II, III layers of LS area and 168 cells in LGNd were plotted with microscope and camera lucida. Bias was introduced to analyze the properties of dendritic fields of these cells quantitatively. Our results indicated that most of the cells in three areas had elongated and oriented dendritic fields. The proportion of the cells with dendritic fields parallel to the surface of 17, 18 areas was significantly higherthan that of LS area. In LGNd the orientation of dendritic fields of most adjacent cells was similar and the biases of class 3 cells were significantly higher than that of class 1.