李晟研究员主要从事认知神经科学方向的研究，包括视觉知觉、决策、与学习的神经机制，功能性脑成像方法与建模。主要研究手段包括心理物理学，功能性磁共振成像(fMRI)，脑电(EEG)，以及机器学习等计算分析方法。李晟研究员在国际学术刊物上发表论文多篇，包括 Neuron，Journal of Neuroscience，Cerebral Cortex，Journal of Experimental Psychology: Human Perception and Performance，IEEE Transactions on Neural Networks等权威杂志。其研究受国家自然科学基金，科技部，教育部等多个项目支持。
研究兴趣：
1. 知觉学习与知觉决策的神经机制。
2. 奖赏信号与感知觉过程的交互过程。
3. 多模态功能性脑成像。
英文论著
Journal Papers
Yang, F., Wu, Q., Li, S. (2014) Learning-induced uncertainty reduction in perceptual decisions is task-dependent. Frontiers in Human Neuroscience, 8:282. doi: 10.3389/fnhum.2014.00282
Wuyun, G., Shu, M., Cao, Z., Huang, W., Zou, X., Li, S., Zhang, X., Luo, H., & Wu, Y. (2014) Neural representations of the self and the mother for Chinese individuals. PLoS ONE, 9, e91556.
Gong, M., Li, S. (2014) Learned reward association improves visual working memory. Journal of Experimental Psychology: Human Perception and Performance 40(2): 841-856.
Mu,T., Li,S. (2013) The neural signature of spatial frequency-based information integration in scene perception. Experimental Brain Research 227: 367-377.
Li,S., Yang, F. (2012) Task dependent uncertainty modulation of perceptual decisions in the human brain. European Journal of Neuroscience 36:3732–3739.
Li,S.?, Mayhew,S.?, Kourtzi,Z. (2012) Learning shapes spatiotemporal brain patterns for flexible categorical decisions. Cerebral Cortex 22:2322-2335. (?co-first authors)
Mayhew,S.?, Li,S.?, Kourtzi,Z. (2012) Learning acts on distinct processes for visual form perception in the human brain. Journal of Neuroscience 32:775–786. (?co-first authors)
Li,S. (2011) Multivariate pattern analysis in functional brain imaging. Acta Physiologica Sinica 63: 472?476.
Peterson,MF., Das,K., Sy,JL., Li,S., Giesbrecht,B., Kourtzi,Z., Eckstein,MP. (2010) Ideal observer analysis for task normalization of pattern classifier performance applied to EEG and fMRI data. J Opt Soc Am A, 27: 2670-2683.
Chen,D.?, Li,S.?, Kourtzi,Z., Wu,S. (2010) Behavior-constrained support vector machines for fMRI data analysis. IEEE Transactions on Neural Networks 21:1680-1685. (?co-first authors)
Mayhew,S., Li,S., Storrar,J., Tsvetanov,K., Kourtzi,Z. (2010) Learning shapes the representation of visual categories in the aging human brain. Journal of Cognitive Neuroscience 22:2913-2925.
Duncan,K., Hadjipapas,A., Li,S., Kourtzi,Z., Bagshaw,A., Barnes,G. (2010) Identifying spatially overlapping local cortical networks with MEG. Human Brain Mapping 31:1003-1016.
Li,S., Mayhew,S., Kourtzi,Z. (2009) Learning shapes the representation of behavioral choice in the human brain. Neuron 62:441-452.
Preston,T., Li,S., Kourtzi,Z., Welchman,A. (2008) Multivoxel pattern selectivity for perceptually relevant binocular disparities in the human brain. Journal of Neuroscience 28:11315–11327.
Ostwald,D., Lam,J., Li,S., Kourtzi,Z. (2008) Neural coding of global form in the human visual cortex. Journal of Neurophysiology 99:2456-2469.
Li,S., Ostwald,D., Giese,MA., Kourtzi,Z. (2007) Flexible coding for categorical decisions in the human brain. Journal of Neuroscience 27:12321-12330.
Li,S., Wu,S. (2007) Robustness of neural codes and its implication on natural image processing. Cognitive Neurodynamics 1:261-272.
Williams,P., Li,S., Feng,J., Wu,S. (2007) A geometrical method to improve performance of the support vector machine. IEEE Transactions on Neural Networks 18:942-947.
Li,S., Wu,S. (2005) On the variability of cortical neural responses: a statistical interpretation. Neurocomputing 65:409-414.
Book Chapters and Conference Papers
Das,K., Li,S., Giesbrecht,B., Kourtzi,K., Eckstein,MP. (2010) Predicting perceptual performance from neural activity. In Advances in Understanding Human Performance: Neuroergonomics, Human Factors Design, and Special Populations. T. Marek, W. Karwowski, V. Rice Eds. CRC Press.
Williams,P., Li,S., Feng, J. and Wu,S. (2005) Scaling the kernel function to improve performance of the support vector machine. Advances in Neural Networks - ISNN 2005, Lecture Notes in Computer Science 3496: pp. 831-836. |
