The Effects of Visual Object Size in The Depth Perception in KM Mouse


Autoria(s): Guo Xing-Yan; Zhu Jing; Hu Xin-Tian; Zhou Rong-Wu; Luo Ming-Yang
Data(s)

2010

Resumo

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.

This work was supported in part by grants from Scientific and Technological projects of China (2009ZX09501-029, 2008ZX10005-005) and Yunnan (2007BC006), 863 Program (2006AA020602), 973 Program (2009CB522306), and the CAS (KSCX1-YW-R-24, KSCX2-YW-R-185). We would like to acknowledge the MRC AIDS Research Project and the NIH AIDS Research and Reference Reagent Program for providing cell lines and viruses.

Identificador

http://159.226.149.42/handle/152453/5517

http://www.irgrid.ac.cn/handle/1471x/48349

Direitos

The Effects of Visual Object Size in The Depth Perception in KM Mouse

Fonte

Guo Xing-Yan; Zhu Jing; Hu Xin-Tian; Zhou Rong-Wu; Luo Ming-Yang.The Effects of Visual Object Size in The Depth Perception in KM Mouse,37,69-73,platform; depth visual; KM mouse(SCI-E ):This work was supported in part by grants from Scientific and Technological projects of China (2009ZX09501-029, 2008ZX10005-005) and Yunnan (2007BC006), 863 Program (2006AA020602), 973 Program (2009CB522306), and the CAS (KSCX1-YW-R-24, KSCX2-YW-R-185). We would like to acknowledge the MRC AIDS Research Project and the NIH AIDS Research and Reference Reagent Program for providing cell lines and viruses.

Palavras-Chave #Biochemistry & Molecular Biology; Biophysics #platform #depth visual #KM mouse
Tipo

期刊论文