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健康成年人食物记忆的神经认知预测因素 - 一个预先注册的分析分析
Ronja Thieleking1, Evelyn Medawar1, Arno Villringer2
1Max Planck Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany.
Neurobiology of learning and memory
|August 25, 2023
概括
想要食物可以提高识别准确度,而更高的热量含量可以改善食物的记忆力. 大脑结构没有影响过重的成年人的食物选择.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 营养科学 营养科学
背景情况:
- 食物选择受到记忆的影响,但对食物识别记忆的认知,静态和神经解剖学预测因素未得到充分研究.
- 大脑微观结构的作用,特别是未经切割的囊 (UF),在食物的欲望和记忆的相互作用需要进一步的研究.
研究的目的:
- 研究食物识别记忆的认知,静态和神经解剖学预测因素.
- 检查未切割 (UF) 微观结构对超重成年人食物渴望和记忆过程之间的相互作用的影响.
主要方法:
- 60名健康,超重的成年人参与了食物需求,识别和诱惑歧视任务.
- 使用了3T扩散权重成像数据的高级曲谱学和贝叶斯多层回归建模.
- 参与者在标准化早餐后,在四个时间点完成任务.
主要成果:
- 食品识别和诱惑区分性能在食品图像中通常高于艺术图像.
- 奖励预期 (想要) 提高了识别精度,更高的热量含量提高了食物记忆精度.
- 未切割的囊 (UF) 微观结构没有显著影响记忆性能或缓解想要的增强效果. 女性参与者和神经性较低的参与者表现出更好的记忆性能.
结论:
- 奖励预期和热量含量显著影响食物识别和记忆,可能影响食物决策.
- 大脑的微观结构,特别是UF,似乎不会影响超重成年人的食物决策过程.
- 未来的研究应该探索大脑活动和患有饮食行为障碍的人群,以进一步了解这些过程.
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