目标物体尺寸的大小对小鼠空间深度感知的影响
文献类型：期刊论文
| 作者 | 郭兴焱1; 朱静[*]1; 胡新天2; 周荣武1; 罗明阳1 |
| 刊名 | 生物化学与生物物理进展
 |
| 出版日期 | 2010 |
| 卷号 | 37期号:1页码:69-73 |
| 关键词 | 高台 深度视觉 昆明小鼠 |
| 其他题名 | The Effects of Visual Object Size in The Depth Perception in KM Mouse |
| 通讯作者 | zhuj@swfc.edu.cn |
| 合作状况 | 其它 |
| 中文摘要 | 探索了小鼠在排除透视、遮挡等空间深度的线索下,是否是依靠视觉目标的尺寸大小来感知空间深度.小鼠放置于可以调节高度的高台上,高台位于仅底面有光线照明、四周黑暗的实验箱内.将由格子构成底部面板的尺寸设计为小鼠估计高度距离的唯一线索,设置了3个空间尺度的底板,分别按2/3的比例缩小,并设置7个高度.在同一高度下每测试一轮即对底板的尺寸进行随机变换.记录小鼠跳落前在高台上停留的时间,研究小鼠对高度的判断是否受到底板尺寸的影响.结果表明所有大小线索条件下小鼠在高台上停留的时间随高度的增加而延长.在20～30cm的高度范围,小鼠不以大小为线索的信息来判断深度,可能主要以双眼视差产生的深度信息来判断高度.而在小于20cm和大于30cm的高度范围,特别是在更高的距离上如50cm、60cm和70cm,小鼠以目标大小信息为线索来对深度进行判断,以弥补在这些条件下双眼深度信息的不足.在理论上说这是由于小鼠只有三分之一的(中央)视野为双眼视野区.实验的行为范式可以应用到以转基因鼠为模式生物的实验中,以研究此类行为与基因之间的关系. |
| 英文摘要 | Whether mice perceive the depth of space dependent on the visual size of object targets was explored when visual cues such as perspective and partial occlusion in space were excluded. A mouse was placed on a platform the height of which is adjustable. The platform located inside a box in which all other walls were dark exception its bottom through that light was projected as a sole visual cue. The visual object cue was composed of 4x4 grids to allow a mouse estimating the distance of the platform relative to the grids. Three sizes of grids reduced in a proportion of 2/3 and seven distances with an equal interval between the platform and the grids at the bottom were applied in the experiments. The duration of a mouse staying on the platform at each height was recorded when the different sizes of the grids were presented randomly to test whether the Judgment of the mouse for the depth of the platform from the bottom was affected by the size information of the visual target. The results from all conditions of three object sizes show that time of mice staying on the platform became longer with the increase in height. In distance of 20 similar to 30 cm, the mice did not use the size information of a target to judge the depth, while mainly used the information of binocular disparity. In distance less than 20 cm or more than 30 cm, however, especially in much higher distance 50 cm, 60 cm and 70 cm, the mice were able to use the size information to do so in order to compensate the lack of binocular disparity information from both eyes. Because the mice have only 1/3 of the visual field that is binocular. This behavioral paradigm established in the current study is a useful model and can be applied to the experiments using transgenic mouse as an animal model to investigate the relationships between behaviors and gene functions. |
| 收录类别 | 其他 |
| 资助信息 | 西南林学院动物学重点学科建设经费资助项目(XKX200903). |
| 语种 | 中文 |
| 公开日期 | 2010-08-19 |
| 源URL | [http://159.226.149.42:8088/handle/152453/1729]  |
| 专题 | 昆明动物研究所_神经系统编码 |
| 作者单位 | 1.西南林学院保护生物学学院，昆明650224 2.中国科学院昆明动物研究所，灵长类感觉、运动及整合实验室，昆明 650223 |
| 推荐引用方式 GB/T 7714 | 郭兴焱,朱静[*],胡新天,等. 目标物体尺寸的大小对小鼠空间深度感知的影响[J]. 生物化学与生物物理进展,2010,37(1):69-73. |
| APA | 郭兴焱,朱静[*],胡新天,周荣武,&罗明阳.(2010).目标物体尺寸的大小对小鼠空间深度感知的影响.生物化学与生物物理进展,37(1),69-73. |
| MLA | 郭兴焱,et al."目标物体尺寸的大小对小鼠空间深度感知的影响".生物化学与生物物理进展 37.1(2010):69-73. |
入库方式： OAI收割
来源：昆明动物研究所
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