在胡须至桶皮质路径中的模式中断会改变行为
Joanna M F Lutchman1, Sarah A F Lutchman1, Joshua C Brumberg1,2
1Department of Psychology, Queens College of the City University of New York, 65-30 Kissena Boulevard, Flushing, NY 11367, USA.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
小鼠的胡须体型破坏会影响行为. 没有桶的小鼠可以区分纹理,而Prrxl1淘汰的小鼠不能,两者都表现出焦虑.
科学领域:
- 神经科学是一个神经科学.
- 感官处理 感官处理
- 动物行为 动物行为
背景情况:
- 小鼠利用胡须进行感官输入,导航和环境探索.
- 从胡须到的路径对于处理触觉信息至关重要.
- 这条通路的干扰可以改变感官感知和行为.
研究的目的:
- 为了研究被破坏的胡须体质的行为后果.
- 为了比较缺席的桶皮质模式 (Barrelless小鼠) 与被破坏的lemniscal路径模式 (Prrxl1淘汰赛小鼠) 的影响.
主要方法:
- 使用了两个小鼠模型:无桶 (BRL) 鼠标和Prrxl1淘汰 (Prrxl1-/-) 鼠标.
- 使用纹理新型物体识别测试评估了依赖胡须的歧视行为.
- 通过开放场地测试评估探索和运动行为.
主要成果:
- 没有桶的小鼠成功地区分了纹理,与Prrxl1-/-小鼠不同.
- 与对照组相比,BRL和Prrxl1-/-小鼠都表现出增加的焦虑.
- 探索和运动活动在BRL小鼠中增加,但在Prrxl1-/-小鼠中减少.
结论:
- 胡须体形破坏显著影响感官歧视和探索性行为.
- 途径中断的程度与特定的行为表型相关.
- 人体感官模式与焦虑和运动活动的调节有关.
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