SACCADE TARGET SELECTION-FRONTAL CORTEX

扫视目标选择-额叶皮层

• 批准号: 7847275
• 负责人: Jeffrey D Schall
• 金额: $ 0.74万
• 依托单位: VANDERBILT UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-06-01 至 2010-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7847275
• 关键词: Address; Architecture; Attention; Behavior; Brain; Code; Color; Cues; Diffusion; Dimensions; Eye Movements; Goals; Grant; Investigation; Macaca; Maps; Monitor; Monkeys; Motor; Movement; Neurons; Outcome; Performance; Preparation; Process; Property; Race; Relative (related person); Research; Saccades; Sampling; Scheme; Sensory; Shapes; Staging; Stimulus; Time; Visual; Visual system structure; design; experience; frontal eye fields; frontal lobe; gaze; neural patterning; neuromechanism; programs; relating to nervous system; visual information; visual process; visual processing; visual search; visual stimulus

DESCRIPTION (provided by applicant): The long-term goal of our research is to understand how the visual system decides where to look. The activity of multiple neurons will be monitored simultaneously in monkeys performing visual search tasks designed to dissociate visual processing from saccade preparation. The frontal eye field will be studied because it is situated anatomically to sample the outcome of visual processing to orient attention and produce motor commands to orient gaze. Patterns of neural activity will be analyzed to evaluate specific hypotheses about how visual information is encoded for target selection among pools of neurons (Aim 1), to describe how sensory-motor mapping occurs between visual and saccade neurons (Aim 2) and to determine how short-term and long-term experience influences saccade target selection (Aim 3). Understanding how the brain selects visual stimuli for action is necessary to understand the causes of impaired visual behavior.

描述（由申请人提供）：我们研究的长期目标是了解视觉系统如何决定看哪里。将在执行视觉搜索任务的猴子中同时监测多个神经元的活动，该视觉搜索任务旨在将视觉处理与眼跳准备分离。将研究额眼场，因为它在解剖学上位于采样视觉处理的结果，以定向注意力和产生运动命令定向凝视。神经活动的模式将进行分析，以评估特定的假设，视觉信息是如何编码的神经元之间的目标选择（目标1），描述如何感觉运动映射之间发生视觉和扫视神经元（目标2），并确定如何短期和长期的经验影响扫视目标选择（目标3）。了解大脑如何选择视觉刺激来采取行动，对于理解视觉行为受损的原因是必要的。