MethodsFood pellet delivery was administered under the fixed ratio 1 schedule of reinforcement, and sucrose water preference was used the 2 % sucrose solution.
方法摄食行为应用固定比例1的食物强化训练程序， 2%蔗糖水作糖水偏爱试验。
MethodsFood pellet delivery was administered under the fixed ratio 1 schedule of reinforcement, and sucrose water preference was used the 2 % sucrose solution.
方法摄食行为应用固定比例1的食物强化训练程序， 2%蔗糖水作糖水偏爱试验。
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