多巴胺
心理学
觅食
情感(语言学)
认知心理学
神经科学
发展心理学
沟通
生物
生态学
作者
Cwyn Solvi,Luigi Baciadonna,Lars Chittka
出处
期刊:Science
[American Association for the Advancement of Science]
日期:2016-09-29
卷期号:353 (6307): 1529-1531
被引量:181
标识
DOI:10.1126/science.aaf4454
摘要
Whether invertebrates exhibit positive emotion–like states and what mechanisms underlie such states remain poorly understood. We demonstrate that bumblebees exhibit dopamine-dependent positive emotion–like states across behavioral contexts. After training with one rewarding and one unrewarding cue, bees that received pretest sucrose responded in a positive manner toward ambiguous cues. In a second experiment, pretest consumption of sucrose solution resulted in a shorter time to reinitiate foraging after a simulated predator attack. These behavioral changes were abolished with topical application of the dopamine antagonist fluphenazine. Further experiments established that pretest sucrose does not simply cause bees to become more exploratory. Our findings present a new opportunity for understanding the fundamental neural elements of emotions and may alter the view of how emotion states affect decision-making in animals.
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