Neural Information Processing with Feedback Modulations
文献类型：期刊论文
| 作者 | Zhang, WH ; Wu, S |
| 刊名 | NEURAL COMPUTATION
 |
| 出版日期 | 2012 |
| 卷号 | 24期号:7页码:1695-1721 |
| ISSN号 | 0899-7667 |
| 关键词 | LATERAL GENICULATE-NUCLEUS VISUAL-CORTEX CONTINUOUS ATTRACTORS STRIATE CORTEX MACAQUE MONKEY HEAD-DIRECTION DYNAMICS THALAMUS NEURONS ORIENTATION |
| 通讯作者 | Zhang, WH (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Neurosci, Shanghai 200031, Peoples R China.,whzhang@ion.ac.cn |
| 英文摘要 | Descending feedback connections, together with ascending feedforward ones, are the indispensable parts of the sensory pathways in the central nervous system. This study investigates the potential roles of feedback interactions in neural information processing. We consider a two-layer continuous attractor neural network (CANN), in which neurons in the first layer receive feedback inputs from those in the second one. By utilizing the intrinsic property of a CANN, we use a projection method to reduce the dimensionality of the network dynamics significantly. The simplified dynamics allows us to elucidate the effects of feedback modulation analytically. We find that positive feedback enhances the stability of the network state, leading to an improved population decoding performance, whereas negative feedback increases the mobility of the network state, inducing spontaneously moving bumps. For strong, negative feedback interaction, the network response to a moving stimulus can lead the actual stimulus position, achieving an anticipative behavior. The biological implications of these findings are discussed. The simulation results agree well with our theoretical analysis. |
| 学科主题 | Computer Science ; Neurosciences & Neurology |
| 资助信息 | 973 program of China [2011CBA00406]; National Foundation of Natural Science of China [91132702] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-06-04 |
| 源URL | [http://ir.sibs.ac.cn/handle/331001/2491]  |
| 专题 | 上海神经科学研究所_神经所(总) |
| 推荐引用方式 GB/T 7714 | Zhang, WH,Wu, S. Neural Information Processing with Feedback Modulations[J]. NEURAL COMPUTATION,2012,24(7):1695-1721. |
| APA | Zhang, WH,&Wu, S.(2012).Neural Information Processing with Feedback Modulations.NEURAL COMPUTATION,24(7),1695-1721. |
| MLA | Zhang, WH,et al."Neural Information Processing with Feedback Modulations".NEURAL COMPUTATION 24.7(2012):1695-1721. |
入库方式： OAI收割
来源：上海神经科学研究所
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