Topography of spatially directed conditioned responding: Effects of context and trial duration
Topography of spatially directed conditioned responding: Effects of context and trial duration
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DOI：
10.1037/0097-7403.27.3.269
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发表时间：
2001-07-01
期刊：
影响因子：
--
通讯作者：
Domjan, M
中科院分区：
文献类型：
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作者：
Burns, M;Domjan, M
家养鹌鹑(Coturnix Japan Onica)在实验室的一端接受离散的条件刺激(CS)，并在112 cm外的目标箱中与雌性鹌鹑交配(非条件刺激)，测量接近CS(手势跟踪)和接近目标区域(目标跟踪)。在实验1中，暴露在实验环境中的持续时间(C)是不同的，而在实验2中，对于独立的组，条件化试验(T)的持续时间是不同的，产生了1.0、1.5、4.5、45和180的C/T比率。与之前关于C/T比率和条件性反应之间直接关系的报道相反，在本实验中，条件行为的地形和刺激控制发生了变化。低C/T比(1.0-4.5)产生受背景线索控制的目标跟踪，而高C/T比(45和180)产生由离散CS控制的符号跟踪。
Domesticated quail (Coturnix japonica) received a discrete conditioned stimulus (CS) at one end of the experimental chamber paired with the opportunity to copulate with a female quail (the unconditioned stimulus) in a goal box located 112 cm away, Approach to the CS (sign tracking) and approach to the goal area (goal tracking) were measured. The duration of exposure to the experimental context (C) was varied in Experiment 1, and the duration of the conditioning trials (T) was varied in Experiment 2 for independent groups, creating C/T ratios of 1.0, 1.5, 4.5, 45, and 180. Contrary to previous reports of a direct relation between the C/T ratio and conditioned responding, in the present experiments, a shift in the topography and stimulus control of conditioned behavior occurred. Low C/T ratios (1.0-4.5) produced goal tracking controlled by contextual cues, whereas high C/T ratios (45 and 180) produced sign tracking controlled by the discrete CS.