Positive geotaxis in infant rats (Rattus norvegicus): a natural behavior and a historical correction.
Positive geotaxis in infant rats (Rattus norvegicus): a natural behavior and a historical correction.
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幼鼠（褐家鼠）的正趋地性：自然行为和历史修正。
DOI：
10.1037/0735-7036.118.2.123
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Schank,JeffreyC
中科院分区：
文献类型：
--
作者：
Alberts,JeffreyR;Motz,BenjaminA;Schank,JeffreyC
将幼年大鼠（Rattusnorvegicus）放置在浅斜坡（2、4或8个）上，并在1分钟内定向下坡；也就是说，它们表现出正的趋地性。它们的下坡易位随着倾斜角度的增加而增加。作为趋地性的解释，各种可能的行为要素（例如，初始方向、旋转运动、行走速度）被消除。墙壁接触被认为是一个决定性事件：斜坡上的幼崽在接触墙壁之前没有表现出相对于地重力刺激的方向。然而，墙壁接触的事件引起了可靠的下坡方向和更线性的运动。正向趋地性是由幼崽靠墙的方向和相关的运动速度增加而产生的。这是对行为反应的独特视角，取代了传统上被误解的现象。作者讨论了这些发现的生态有效性和历史背景。
Infant rats (Rattus norvegicus) placed on a shallow incline (2, 4, or 8) oriented and moved downhill within 1 min; that is, they displayed positive geotaxis. Their downhill translocation increased with angle of inclination. A variety of possible behavioral elements (eg, initial orientation, rotational movements, ambulatory velocities) were eliminated as explanations of the geotaxis. Wall contact was recognized as a determinative event: Pups on the inclines showed no orientation with respect to the geogravitational stimulus before contacting a wall. The event of wall contact, however, evoked reliable downhill orientation and more linear movements. Positive geotaxis was created by pups' orientation against walls and an associated increase in movement velocity. This is a distinct perspective on a behavioral response that replaces a traditionally misinterpreted phenomenon. The authors discuss the ecological validity and historical context of these findings.