MOTIVATIONAL CONTROL OF HETEROGENEOUS INSTRUMENTAL CHAINS
MOTIVATIONAL CONTROL OF HETEROGENEOUS INSTRUMENTAL CHAINS
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DOI：
10.1037/0097-7403.21.3.203
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发表时间：
1995-07-01
期刊：
影响因子：
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通讯作者：
DICKINSON, A
中科院分区：
文献类型：
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作者：
BALLEINE, BW;GARNER, C;DICKINSON, A
工具的动作的敏感性，以改变动机状态的功能进行评估，每个动作的近端或远端位置的食物结果在一个异质链。该链由杠杆按压和链拉动或杠杆按压和杂志面板响应组成。在所有研究中，食物剥夺大鼠在灭绝测试之前接受仪器训练，而动物要么被剥夺食物，要么被剥夺食物。确定了两个主要结果：（a）当动物在未剥夺状态下进行测试时，在测试前未剥夺时再次暴露于食物结果会使远端动作的测试性能比近端动作的测试性能降低相对更大。近端的行动，然而，压抑的再暴露治疗。(b)在不重复暴露于未剥夺状态下的结果的情况下，近端动作比远端动作对剥夺状态更敏感。它的结论是，动机控制工具性能的行为链内的行动的位置的函数而变化。
The sensitivity of instrumental actions to a shift in motivational state was assessed as a function of each action's proximal or distal location to a food outcome within a heterogeneous chain. The chain consisted of either a lever press and a chain pull or a lever press and a magazine-panel response. In all studies, food-deprived rats received instrumental training before performance was tested in extinction while the animals were either food deprived or undeprived. Two main results were established: (a) When the animals were tested in the undeprived state, reexposure to the food outcome when undeprived prior to testing produced a relatively greater reduction in the test performance of distal than of proximal actions. Proximal actions were, however, depressed by the reexposure treatment. (b) In the absence of reexposure to the outcome in the undeprived state, the proximal actions were more sensitive than the distal ones to the deprivation state on test. It is concluded that the motivational control of instrumental performance varies as a function of the location of the action within a behavioral chain.