Xuebing Li

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We used the event-related potential technique to assess the influences of negative emotion on spatial and verbal working memory with a modified n-back task. In both spatial and verbal tasks, the anterior late positive component and the posterior P300 were affected by negative emotion. These effects were, however, greater in spatial tasks than in verbal(More)
We investigated the attentional bias for threat in selected high and low trait-anxious participants using an event-related potential technique. A modified cue-target paradigm was adopted with threatening and nonthreatening pictures as uninformative location cues. In high anxious individuals, reactions were speeded up and the occipitoparietal P1 amplitude(More)
Influenza A virus neuraminidase can be classified into groups 1 and 2 on the basis of its primary structure. The main structural feature of group 1 neuraminidase is an extra cavity in the active site, the 150-cavity. Here we present the crystal structure of neuraminidase from the 2009 pandemic H1N1 influenza strain. In contrast to other characterized N1(More)
BACKGROUND The effects of negative emotion on different processing periods in spatial and verbal working memory (WM) and the possible brain mechanism of the interaction between negative emotion and WM were explored using a high-time resolution event-related potential (ERP) technique and time-locked delayed matching-to-sample task (DMST). RESULTS Early P3b(More)
We investigated the effect of negative emotion on spatial working memory (WM) and verbal WM using event-related potential (ERP) technique. A modified delayed-matching-to-sample task (DMST) was adopted and the ERPs in delay phase were analyzed. In the spatial WM task, central P2 amplitude and frontal late positive component (LPC) was reduced after centrally(More)
OBJECTIVE Adolescence is a critical period for the vulnerability of anxiety. Imaging studies focusing on adolescents' susceptibility to anxiety suggest that the different development trajectories between the limbic system and the executive control system may play important roles in this phenomenon. However, few studies have explored the brain basis of this(More)
The paper is devoted to planning reasonable master production scheduling in complex supply chain system for companies with small batches and multi-items. A multi-objective scheduling optimization model is developed for improving the rates of Payment and Profit and efficiency, and determining the scheduling rules, the implementation plans, and dynamic(More)
Although a critical component of taste perception, the neural basis of aftertaste perception has yet to be elucidated with neuroimaging. This functional neuroimaging study assessed the temporal dynamics of neural responses to sucrose and aspartame in eight healthy volunteers. Aspartame has a sweetness flavor profile similar to sucrose but a longer temporal(More)