Collaborative Research: Decorrelation of natural inputs in lateral geniculate nucleus of behaving monkeys

合作研究：行为猴外侧膝状核自然输入的去相关

• 批准号: 0843304
• 负责人: Michele Rucci
• 金额: $ 1.36万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-05-01 至 2015-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0843304&HistoricalAwards=false
• 关键词: Collaborative; Research; Decorrelation; natural; inputs

Information that leaves the eye first encounters a structure called the lateral geniculate nucleus (LGN). From the LGN, information is relayed to the cortex, where neurons have properties closely related to our perceptual experience. To understand how the cortex acquires its remarkable abilities, data on its inputs from the LGN are needed. When we view objects in the world, the neurons in the lateral geniculate nucleus (LGN) are stimulated by small regions of space called their receptive fields. This project will record the electrical responses of the LGN neurons of monkeys performing a visual task. Linear mathematical models of the receptive fields of LGN neurons will be constructed based on their responses to simple forms. These models will be used to predict responses of the LGN cells to natural scenes. In addition, the effects of regions of space surrounding the receptive fields will be assessed. These surrounding regions are expected to reduce the activity of the LGN neurons so that they are more efficient and they conserve energy. In addition to improved understanding of the mechanisms underlying human perception, the results may help to generate ideas about improved designs of artificial vision systems that have wide applications in industry. This collaborative project will provide training for a graduate student in neuroscience at the University of Texas and will also provide training and data for graduate students doing mathematical modeling at Boston University.

离开眼睛的信息首先遇到一个称为外侧膝状体核（LGN）的结构。信息从LGN传递到皮层，那里的神经元具有与我们的感知体验密切相关的特性。要了解大脑皮层是如何获得其非凡能力的，我们需要从LGN获得有关其输入的数据。当我们看到世界上的物体时，外侧膝状体核（LGN）中的神经元会受到称为感受野的小空间区域的刺激。这个项目将记录执行视觉任务的猴子的LGN神经元的电反应。LGN神经元感受野的线性数学模型将根据它们对简单形式的反应来构建。这些模型将用于预测LGN细胞对自然场景的反应。此外，还将评估感受野周围空间区域的影响。这些周围的区域预计会降低LGN神经元的活动，使它们更有效，并节省能量。除了提高对人类感知机制的理解外，研究结果还有助于产生关于改进人工视觉系统设计的想法，这些系统在工业中具有广泛的应用。该合作项目将为德克萨斯大学神经科学研究生提供培训，并为波士顿大学数学建模研究生提供培训和数据。