Different effects of reward value and saliency during bumblebee visual search for multiple rewarding targets.
Different effects of reward value and saliency during bumblebee visual search for multiple rewarding targets.
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DOI：
10.1007/s10071-021-01479-3
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发表时间：
2021-07
期刊：
影响因子：
2.7
通讯作者：
Chittka L
中科院分区：
文献类型：
--
作者：
Nityananda V;Chittka L
包括蜜蜂在内的一些动物使用视觉搜索来区分感兴趣的目标，并忽略干扰物。虽然蜜蜂对花朵的选择已经得到了很好的研究，但我们对它们如何在复杂的花卉环境中选择多种有价值的花朵知之甚少。影响蜜蜂视觉搜索多朵花的两个因素是显着性（与背景的颜色对比度）和花的奖励值。我们在这里研究这两个不同的因素如何有助于蜜蜂视觉搜索。我们训练蜜蜂独立识别两种奖励花类型，在不同的实验中，显着性，奖励值或两者都不同。然后，我们在没有强化的测试中测量了他们在干扰物存在的情况下对这些花的选择和注意力。我们发现，蜜蜂更喜欢更突出或更高的奖励花，忽略干扰。当高回报的花朵比低回报的花朵不那么显著时，蜜蜂仍然有同样的可能选择高回报的花朵，因为我们使用了奖励和显著性值。蜜蜂也更有可能关注这些高回报的花朵，在它们周围花费更长的检查时间，并在选择它们时表现出更快的搜索时间。当花朵的奖励不同时，我们还发现了训练顺序的影响，如果在测试前的更直接的训练中遇到低奖励目标，它们更有可能被选中。我们的研究结果与人类最近的研究结果相一致，这些研究结果表明，即使目标不那么突出，与当前任务无关，奖励价值也可以吸引注意力。在线版本包含补充材料，可通过10.1007/s10071-021-01479-3获得。
Several animals, including bees, use visual search to distinguish targets of interest and ignore distractors. While bee flower choice is well studied, we know relatively little about how they choose between multiple rewarding flowers in complex floral environments. Two factors that could influence bee visual search for multiple flowers are the saliency (colour contrast against the background) and the reward value of flowers. We here investigated how these two different factors contribute to bee visual search. We trained bees to independently recognize two rewarding flower types that, in different experiments, differed in either saliency, reward value or both. We then measured their choices and attention to these flowers in the presence of distractors in a test without reinforcement. We found that bees preferred more salient or higher rewarding flowers and ignored distractors. When the high-reward flowers were less salient than the low-reward flowers, bees were nonetheless equally likely to choose high-reward flowers, for the reward and saliency values we used. Bees were also more likely to attend to these high-reward flowers, spending higher inspection times around them and exhibiting faster search times when choosing them. When flowers differed in reward, we also found an effect of the training order with low-reward targets being more likely to be chosen if they had been encountered during the more immediate training session prior to the test. Our results parallel recent findings from humans demonstrating that reward value can attract attention even when targets are less salient and irrelevant to the current task. The online version contains supplementary material available at 10.1007/s10071-021-01479-3.
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影响因子：
19.9
作者：
Awh, Edward;Belopolsky, Artem V.;Theeuwes, Jan
通讯作者：
Theeuwes, Jan
影响因子：
2.4
作者：
Dukas, R;Kamil, AC
通讯作者：
Kamil, AC
影响因子：
2.7
作者：
DUKAS, R;REAL, LA
通讯作者：
REAL, LA
DOI：
10.1073/pnas.1104047108
发表时间：
2011-06-21
影响因子：
11.1
作者：
Anderson, Brian A.;Laurent, Patryk A.;Yantis, Steven
通讯作者：
Yantis, Steven
影响因子：
4.8
作者：
HEINRICH, B
通讯作者：
HEINRICH, B