Zebrafish choice behavior is sensitive to reinforcer rate, immediacy, and magnitude ratios
Zebrafish choice behavior is sensitive to reinforcer rate, immediacy, and magnitude ratios
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DOI：
10.1002/jeab.709
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发表时间：
2021-07-05
影响因子：
2.7
通讯作者：
Podlesnik, Christopher A.
中科院分区：
文献类型：
--
作者：
Kuroda, Toshikazu;Ritchey, Carolyn M.;Podlesnik, Christopher A.
在某种程度上，行为灵活性被定义为选择行为的变化，作为强化者回报变化的函数。我们研究了广义匹配定律是否定量地描述了当两种选择在不同条件下相对强化率、延迟/即时性和大小发生变化时斑马鱼选择行为的变化。选择对三种强化物的特性都很敏感。相对强化率变化的敏感度估计，当两个可变间隔的计划在不同的选择之间独立安排（实验1a）时，比单一计划在不同的选择之间伪随机安排（实验1b）时更大。相对强化物即时性（实验2）和幅度（实验3）变化的敏感性估计值相似，但低于强化物率的估计值。这些敏感性估计的差异与对其他物种的研究一致，表明斑马鱼在面对收益变化时的选择行为具有广义匹配定律所描述的灵活性。
Behavioral flexibility has, in part, been defined by choice behavior changing as a function of changes in reinforcer payoffs. We examined whether the generalized matching law quantitatively described changes in choice behavior in zebrafish when relative reinforcer rates, delays/immediacy, and magnitudes changed between two alternatives across conditions. Choice was sensitive to each of the three reinforcer properties. Sensitivity estimates to changes in relative reinforcer rates were greater when 2 variable-interval schedules were arranged independently between alternatives (Experiment 1a) than when a single schedule pseudorandomly arranged reinforcers between alternatives (Experiment 1b). Sensitivity estimates for changes in relative reinforcer immediacy (Experiment 2) and magnitude (Experiment 3) were similar but lower than estimates for reinforcer rates. These differences in sensitivity estimates are consistent with studies examining other species, suggesting flexibility in zebrafish choice behavior in the face of changes in payoff as described by the generalized matching law.