Rhesus macaques (Macaca mulatta) exhibit the decoy effect in a perceptual discrimination task.
Rhesus macaques (Macaca mulatta) exhibit the decoy effect in a perceptual discrimination task.
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DOI：
10.3758/s13414-015-0885-6
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发表时间：
2015-07
期刊：
影响因子：
--
通讯作者：
Beran MJ
中科院分区：
文献类型：
--
作者：
Parrish AE;Evans TA;Beran MJ
非对称优势效应(或诱饵效应)是一种上下文相关的选择偏差，其中选择两个选项之一的概率受到第三个选项(也称为诱饵)的引入的影响。诱饵效应在人类消费者的选择文献中得到了广泛的记录，甚至扩展到了非人类动物的偏好测试。在这里，我们将这一研究扩展到恒河猴的知觉辨别任务，以确定诱饵刺激是否会影响矩形刺激的大小判断。在一项计算机化的任务中，猴子试图从两个大小和方向(水平或垂直方向)不同的矩形中选择较大的一个。在探测器试验中，出现了第三个刺激(诱饵)，它比其他两个矩形小，但与其中一个矩形的方向一致。一半的探测器试验提供了与较大刺激方向相匹配的诱饵，另一半提供了与较小刺激方向相匹配的诱饵。猴子很少选择诱饵刺激。然而，当诱饵的方位与最大的矩形一致时，他们的绩效(选择最大的矩形)相对于基线试验(只有两个选择)有所提高，但当诱饵与最大的矩形不一致时，他们的绩效相对于基线下降。因此，诱饵刺激影响猴子的知觉选择行为，即使它本身不是一个可行的选择选项。关于比较评价机制，解释了这些结果。
The asymmetric dominance effect (or decoy effect) is a form of context-dependent choice bias in which the probability of choosing one of two options is impacted by the introduction of a third option, also known as the decoy. Decoy effects are documented widely within the human consumer choice literature and even extend to preference testing within nonhuman animals. Here, we extended this line of research to a perceptual discrimination task with rhesus monkeys to determine whether decoy stimuli would impact size judgments of rectangular stimuli. In a computerized task, monkeys attempted to choose the larger of two rectangles that varied in their size and orientation (horizontally or vertically oriented). In probe trials, a third stimulus (the decoy) was presented that was smaller than the other two rectangles but matched the orientation of one of them. Half of the probe trials presented a decoy that matched the orientation of the larger stimulus, and the other half presented a decoy that matched the orientation of the smaller stimulus. Monkeys rarely selected the decoy stimulus. However, their performance (selection of the largest rectangle) increased relative to the baseline trials (with only two choices) when the decoy was congruent in its orientation with the largest rectangle, but decreased relative to baseline when the decoy was incongruent with the largest rectangle. Thus, a decoy stimulus impacted monkeys’ perceptual choice behavior even when it was not a viable choice option itself. These results are explained with regard to comparative evaluation mechanisms.
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影响因子：
2.5
作者：
Bateson, M;Healy, SD;Hurly, TA
通讯作者：
Hurly, TA
影响因子：
3.4
作者：
Evans TA;Beran MJ
通讯作者：
Beran MJ
DOI：
10.1037/a0027796
发表时间：
2012-07
影响因子：
1.3
作者：
Beran, Michael J.;Evans, Theodore A.;Klein, Emily D.;Einstein, Gilles O.
通讯作者：
Einstein, Gilles O.
DOI：
10.3758/s13414-013-0474-5
发表时间：
2013-08
期刊：
Attention, perception & psychophysics
影响因子：
--
作者：
Beran MJ;Parrish AE
通讯作者：
Parrish AE
DOI：
10.3758/bf03203132
发表时间：
1990-04-01
期刊：
BEHAVIOR RESEARCH METHODS INSTRUMENTS & COMPUTERS
影响因子：
--
作者：
RICHARDSON, WK;WASHBURN, DA;RUMBAUGH, DM
通讯作者：
RUMBAUGH, DM