Nutrients that modify the speed of internal clock and memory storage processes.
Nutrients that modify the speed of internal clock and memory storage processes.
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改变内部时钟和内存存储过程速度的营养素。
DOI：
10.1037//0735-7044.101.4.465
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发表时间：
1987
影响因子：
1.9
通讯作者：
Church,RM
中科院分区：
文献类型：
--
作者：
Meck,WH;Church,RM
两个实验评估了营养素对大鼠计时行为的影响。这些营养素中加入了糖精，并在进行20秒峰值间隔程序的训练之前作为零食给予大鼠。四组10只大鼠的零食的主要成分是卵磷脂（磷脂酰胆碱），蛋白质（酪蛋白），碳水化合物（蔗糖），或非营养素（糖精）。行为的主要测量是在试验期间大鼠最高反应率的时间（峰值时间），其代表大鼠最大期望食物的时间间隔。使用卵磷脂零食时，峰值时间随着时间的推移逐渐移动到较短的时间，在额外的测试中保持向正常功能的左侧移动，然后在停止零食后的两个时间段内保持在较短的时间;对于蛋白质零食，峰值时间突然转变为较短的时间，通过额外的测试恢复正常，然后当中断零食时，恢复到较长的时间;对于碳水化合物，零食峰值时间突然转变为较长的时间，通过额外的测试恢复到正常，然后当中断零食时，恢复到较短的时间。由营养素产生的行为模式被解释为对中枢神经递质合成和释放的前体效应，信息处理模型的心理阶段，以及标量定时理论的数学参数。（PsycINFO数据库记录（c）2016阿帕，保留所有权利）
Two experiments assessed the effects of nutrients on timing behavior by rats. The nutrients were laced with saccharin and given to rats as a snack before training on a 20-s peak-interval procedure. The primary component of the snacks for four groups of 10 rats was lecithin (phosphatidylcholine), protein (casein), carbohydrate (sucrose), or a nonnutrient (saccharin). The primary measure of behavior was the time of the rat's highest response rate during a trial (peak time), which represented the interval during which the rat maximally expected food. With a lecithin snack, peak time was gradually shifted over sessions to a shorter time, remained shifted to the left of the normal function with additional testing, and then remained at the shorter time on two sessions after the snack was discontinued; with the protein snack, peak time was abruptly shifted to a shorter time, returned to normal with additional testing, and then rebounded to a longer time when the snack was discontinued; with a carbohydrate, snack peak time was abruptly shifted to a longer time, returned to normal with additional testing, and then rebounded to a shorter time when the snack was discontinued. The behavioral patterns produced by the nutrients were interpreted in terms of precursor effects on central neurotransmitter synthesis and release, psychological stages of an information-processing model, and mathematical parameters of a scalar timing theory.(PsycINFO Database Record (c) 2016 APA, all rights reserved)