条形多巴胺的成熟支持通过青春期的习惯性行为的发展
Daniel J Petrie1, Ashley C Parr1, Valerie Sydnor1
1Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 15213, United States.
bioRxiv : the preprint server for biology
|January 20, 2025
概括
习惯性行为和基底状腺组织的铁度随着人类的年龄增长而增加. 这项研究将习惯性响应与铁联系起来,表明成熟的奖励系统支持成年期的习惯形成.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 行为经济学是一种行为经济学.
背景情况:
- 青春期到成年期的过渡包括稳定成人行为.
- 了解神经机制是正常发育和精神疾病的关键.
- 习惯性行为模拟大脑机制和心理病理学的风险.
研究的目的:
- 检查从青春期到成年期的习惯性行为发展.
- 研究成熟的条状多巴胺系统在习惯形成中的作用.
- 描述人类习惯和支持大脑系统的体内发育轨迹.
主要方法:
- 与217名参与者 (10-32岁) 进行的长度研究.
- 测量基底状腺组织铁度 (多巴胺神经生理学代理).
- 在两阶段的决策任务中评估目标导向和习惯性控制.
主要成果:
- 基底腺组织的铁度和习惯性反应随着年龄的增长而增加 (p < 0.001).
- 习惯性反应与骨组织铁度相关 (p = 0.014).
- 协会是特定于后门的,表明了专业化.
结论:
- 习惯性行为在人类中成熟到成年期.
- 成熟的条状多巴胺系统,特别是在膜中,支持习惯形成.
- 奖励系统的专业化可能是这种发展轨迹的基础.
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