Excitatory and suppressive receptive field subunits in awake monkey primary visual cortex (V1)
文献类型：期刊论文
| 作者 | Poo, Mu-ming
|
| 刊名 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
 |
| 出版日期 | 2007 |
| 卷号 | 104期号:48页码:19120-19125 |
| 关键词 | CAT STRIATE CORTEX COMPLEX CELLS INFORMATION-TRANSMISSION SPATIAL STRUCTURE MACAQUE V1 SEQUENCES FEATURES NEURONS |
| ISSN号 | 0027-8424 |
| 通讯作者 | Poo, MM (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, State Key Lab Neurosci, Inst Neurosci, 320 Yue Yang Rd, Shanghai 200031, Peoples R China,mpoo@berkeley.edu ; ydan@berkeley.edu |
| 英文摘要 | An essential step in understanding visual processing is to characterize the neuronal receptive fields (RFs) at each stage of the visual pathway. However, RF characterization beyond simple cells in the primary visual cortex (V1) remains a major challenge. Recent application of spike-triggered covariance (STC) analysis has greatly facilitated characterization of complex cell RFs in anesthetized animals. Here we apply STC to RF characterization in awake monkey V1. We found up to nine subunits for each cell, including one or two dominant excitatory subunits as described by the standard model, along with additional excitatory and suppressive subunits with weaker contributions. Compared with the dominant subunits, the nondominant excitatory subunits prefer similar orientations and spatial frequencies but have larger spatial envelopes. They contribute to response invariance to small changes in stimulus orientation, position, and spatial frequency. In contrast, the suppressive subunits are tuned to orientations 45 degrees - 90 degrees different from the excitatory subunits, which may underlie cross-orientation suppression. Together, the excitatory and suppressive subunits form a compact description of RFs in awake monkey V1, allowing prediction of the responses to arbitrary visual stimuli. |
| 学科主题 | Science & Technology - Other Topics |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2012-07-23 |
| 源URL | [http://ir.sibs.ac.cn/handle/331001/1746]  |
| 专题 | 上海神经科学研究所_神经所(总) 上海神经科学研究所_神经可塑性研究组 |
| 推荐引用方式 GB/T 7714 | Poo, Mu-ming. Excitatory and suppressive receptive field subunits in awake monkey primary visual cortex (V1)[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2007,104(48):19120-19125. |
| APA | Poo, Mu-ming.(2007).Excitatory and suppressive receptive field subunits in awake monkey primary visual cortex (V1).PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,104(48),19120-19125. |
| MLA | Poo, Mu-ming."Excitatory and suppressive receptive field subunits in awake monkey primary visual cortex (V1)".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 104.48(2007):19120-19125. |
入库方式： OAI收割
来源：上海神经科学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。