广泛的大脑网络支持以好奇心为动机的自然主义动态刺激的偶然学习,有或没有货币激励
Stefanie Meliss1,2, Aki Tsuchiyagaito3,4,5, Phoenix Byrne1
1School of Psychology and Clinical Language Sciences, University of Reading, Reading, United Kingdom.
Imaging neuroscience (Cambridge, Mass.)
|August 13, 2025
概括
好奇心和外部激励都能改善记忆编码,但通过不同的神经通路. 好奇心会影响高信心回忆,而激励会影响广泛的记忆,挑战奖励网络.
科学领域:
- 认知神经科学 认知神经科学
- 神经经济学 神经经济学
- 心理学 心理学 心理学
背景情况:
- 好奇心是一种内在的学习动力,增强记忆力,并参与奖励通路.
- 以前的研究表明,好奇心会引起多巴胺反应,类似于外部奖励.
- 好奇心,外在激励和它们的神经支与动态刺激之间的相互作用仍然不清楚.
研究的目的:
- 研究好奇心和外部激励如何共同影响学习和神经激活模式.
- 通过使用自然主义刺激来检查这些因素对记忆编码和检索的影响.
- 探索好奇心和激励的神经相关性,超越传统的奖励网络.
主要方法:
- 两项行为研究 (N=77,N=78) 和一项fMRI研究 (N=50) 使用魔术技巧视频.
- 参与者评价主观好奇心,并执行激励判断任务.
- 一周后评估了偶然的记忆;使用主体间同步分析的fMRI数据.
主要成果:
- 好奇心和外部激励都独立地增强了记忆编码.
- 好奇心选择性地改善了高自信度识别记忆;激励影响了记忆,不论信心如何.
- fMRI揭示了好奇心对海马体和多巴胺激素区域的影响,而不是奖励网络;这两种因素都使皮质区域参与不确定性和注意力处理.
结论:
- 好奇心和外部激励使用不同的记忆编码机制.
- 好奇心的神经基础超越了奖励网络,涉及到更广泛的大脑区域.
- 这些发现挑战了对好奇心奖励网络的传统关注,并突出了注意力和不确定性处理.
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