观察痴呆模型组、对照组及老年组大鼠中脑腹侧被盖区(VTA)及黑质(sn)多巴胺能神经元的形态学变化，并定量分析。
To study the morphologic changes of dopaminergic neurons in VTA and SN in the dementia model group, control group and the old group, and to analyse the result concluded by image analysing system.
观察痴呆模型组、对照组及老年组大鼠中脑腹侧被盖区(VTA)及黑质(sn)多巴胺能神经元的形态学变化，并定量分析。
To study the morphologic changes of dopaminergic neurons in VTA and SN in the dementia model group, control group and the old group, and to analyse the result concluded by image analysing system.
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