在暴饮暴食的个体中,Pavlovian-instrumental转移效应
1Department of Psychology, The University of Hong Kong, Rm 664, The Jockey Club Tower, Centennial Campus, Pokfulam, Hong Kong SAR. chanwais@hku.hk.
Journal of eating disorders
|July 6, 2023
概括
与健康对照组相比,患有过度饮食障碍的个体对食物线索的敏感性没有增加. 这项研究发现没有证据支持食物成模型.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 行为科学 行为科学
背景情况:
- 食物成模型表明,高口味食物可以改变奖励途径,导致强迫性饮食行为.
- 对过度饮食中食物奖励条件的研究是有限的.
- 这项研究研究了帕夫洛夫式-仪器转移 (PIT) 在经常性暴饮暴食的个体中的效应.
研究的目的:
- 检查在经常性暴饮暴食的个体中Pavlovian-instrumental transfer (PIT) 的效应.
- 测试超口味食品是否会引起特定的转移效应,特别是在那些过度饮食的人中.
- 为了比较过度饮食和健康对照的个体之间的PIT效应.
主要方法:
- 51名经常暴饮暴食的成年人和50名健康的对照参与了这项研究.
- 参与者通过食物奖励完成了一个PIT范式.
- 还收集了饥饿,情绪,冲动和工作记忆的测量. 混合ANOVA分析了转移效应.
主要成果:
- 在暴饮暴食和对照组之间,没有发现特定转移效应的显著差异.
- 提示的重要主要效应表明,结果特定的提示影响了仪器响应.
- 偏差反应主要是由于对非奖励线索的抑制反应,而不是对食物线索的增强反应.
结论:
- 研究结果不支持这样的假设,即过度饮食的个体更容易受到超口味食物的特定转移效应的影响.
- 帕夫洛夫式-乐器转移 (PIT) 范式没有显示过度饮食中的提醒引起的激励偏见.
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