类别间的证据表明西洛引起的视觉扭曲:明显的运动被人类和老鼠都感知到
Čestmír Vejmola1,2, Klára Šíchová1, Kateřina Syrová1,2
1Psychedelic Research Center, National Institute of Mental Health, Klecany, Czechia.
Biological psychiatry global open science
|July 2, 2025
概括
迷幻药psilocin会损害人类和老鼠的视觉感知,导致难以区分静态图像和运动图像. 这项研究提供了一种新的方法来探索药物如何改变视力及其神经基础.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 迷幻药物,如西洛辛,正受到潜在的精神病学用途的关注.
- 西洛辛会引起改变思想的效果,包括视觉幻觉,如幻觉运动.
- 由于人类和动物研究的困难,了解西洛的机制具有挑战性.
研究的目的:
- 通过差异化任务来调查psilocin诱导的视觉扭曲.
- 为了比较psilocin对人类和老鼠视觉感知的影响.
- 探索视觉知觉变化的神经生物学基础.
主要方法:
- 在人类参与者和雄性老鼠身上,采用了两种选择视觉歧视任务.
- 参与者和老鼠在psilocin下识别了静态图像和运动图像.
- 人类数据将表现与幻觉强度和精神素水平相关联;老鼠任务包括亮度和运动歧视.
主要成果:
- 在人类和老鼠中,psilocin 损害了静态动态视觉区分.
- 人类的损伤与西洛辛水平和幻觉强度相关.
- 鼠在基于运动的任务中表现出选择性损伤,而不是基于亮度的任务,这表明了特定的视觉感知效应.
结论:
- 西洛辛在老鼠中诱导视觉扭曲,与人类体验相似.
- 这项研究验证了研究药物诱导的视觉感知变化的模型.
- 这些发现支持了psilocin对视觉处理的影响,并提供了对精神病状况的见解.
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