Serial decision-making in monkeys during an oculomotor task.
Serial decision-making in monkeys during an oculomotor task.
复制标题
猴子在动眼神经任务期间的串行决策。
DOI：
10.1037/xan0000154
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Sommer, Marc A.
中科院分区：
文献类型：
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作者：
Abzug, Zachary M.;Sommer, Marc A.
许多日常行为涉及系列决策，其中一个选择的结果会影响另一个。一个例子是为自己制定规则：选择一个行为规则可以指导未来的适当选择。人们对大脑是如何将不同时间的决策联系起来的知之甚少。神经机制可以在猴子身上进行研究，因为人们知道它们可以选择和使用行为规则，但现有的心理物理学范式不适合神经生理学的约束。因此，我们设计了一个简化的任务，需要顺序，链接的决策，并训练2猕猴（Macaca mulatta）来执行它。该任务的特点是一次又一次的试验一致性，视觉刺激，眼动反应，以优化它的同步电生理查询。在每个试验的第一阶段，猴子选择一条规则或提供给它们的规则。在第二阶段，他们使用规则来区分2个测试刺激。我们的假设是，他们可以使用自我选择的规则，可以故意选择规则的基础上强化的历史。我们发现，猴子在使用自选规则和指令规则时一样熟练。他们选择规则的偏好与他们使用规则的表现相关，这与完成任务的系统策略而不是随机策略一致。这些结果证实并扩展了先前关于猴子规则选择的研究结果，并建立了一个可行的、实验灵活的范式，用于研究串行决策的神经基础。（PsycINFO数据库记录（c）2018阿帕，保留所有权利）
Much of everyday behavior involves serial decision-making, in which the outcome of 1 choice affects another. An example is setting rules for oneself: choosing a behavioral rule guides appropriate choices in the future. How the brain links decisions across time is poorly understood. Neural mechanisms could be studied in monkeys, as it is known that they can select and use behavioral rules, but existing psychophysical paradigms are poorly suited for the constraints of neurophysiology. Therefore, we designed a streamlined task that requires sequential, linked decisions, and trained 2 rhesus monkeys (Macaca mulatta) to perform it. The task features trial-by-trial consistency, visual stimuli, and eye movement responses to optimize it for simultaneous electrophysiological inquiry. In the first stage of each trial, the monkeys selected a rule or a rule was provided to them. In the second stage, they used the rule to discriminate between 2 test stimuli. Our hypotheses were that they could use self-selected rules and could deliberately select rules based on reinforcement history. We found that the monkeys were as proficient at using self-selected rules as instructed rules. Their preferences for selecting rules correlated with their performance in using them, consistent with systematic, rather than random, strategies for accomplishing the task. The results confirm and extend prior findings on rule selection in monkeys and establish a viable, experimentally flexible paradigm for studying the neural basis of serial decision-making.(PsycINFO Database Record (c) 2018 APA, all rights reserved)