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胆小鼠:一个用于研究恐惧条件反射背后神经回路的虚拟模块

FraidyRat: A Virtual Module Examining the Neural Circuitry Underlying Fear Conditioning.

作者信息

Grisham William, Schottler Natalie, Soto Jorge, Krasne Franklin B

机构信息

Department of Psychology, University of California, Los Angeles, Los Angeles, CA 90095-1563.

出版信息

J Undergrad Neurosci Educ. 2022 Jun 1;20(2):A166-A177. doi: 10.5939/KYSI6629. eCollection 2022 Winter.

Abstract

FraidyRat is a teaching tool that allows students to investigate the neural basis of fear conditioning and extinction using a virtual rat with a virtual brain. FraidyRat models well-known phenomena at both a behavioral and neural level. Students use virtual versions of tract tracing, systemic and intracerebrally infused drugs, neural recording, and electrical stimulation to understand the neural substrates underlying the observed behavior. This module helps students develop critical thinking skills in order to deduce immediate cause and effect as well as inductive reasoning to grasp the broader scheme. This module utilizes scaffolded instruction and formative assessment to shape the thinking of students as they unfold and discover the neural mechanisms responsible for fear conditioning and extinction in FraidyRat, which largely reflect what is found in real rats. Experience with this three-week module resulted in students showing significant gains in content knowledge as well as a trend toward gains in critical thinking. An attitudinal questionnaire showed that students had an overall positive experience. This module can be replicated at any institution with just a computer. All materials are available at: https://mdcune.psych.ucla.edu/modules/fraidy-rat.

摘要

“胆小鼠”是一种教学工具,它能让学生通过一只具有虚拟大脑的虚拟老鼠来探究恐惧条件反射和消退的神经基础。“胆小鼠”在行为和神经层面都能很好地模拟著名的现象。学生使用虚拟版本的神经束追踪、全身和脑内注射药物、神经记录以及电刺激等方法,来理解所观察到的行为背后的神经基础。这个模块有助于学生培养批判性思维技能,以便推断直接的因果关系,同时培养归纳推理能力以把握更广泛的框架。该模块利用支架式教学和形成性评估,在学生逐步展开并发现“胆小鼠”中负责恐惧条件反射和消退的神经机制时,塑造他们的思维,而这些机制在很大程度上反映了真实老鼠中的情况。经历这个为期三周的模块后,学生在内容知识方面有显著提高,在批判性思维方面也有提升的趋势。一份态度调查问卷显示,学生总体上有积极的体验。任何机构只要有一台电脑就能复制这个模块。所有材料可在以下网址获取:https://mdcune.psych.ucla.edu/modules/fraidy-rat

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa1c/10653237/cca97a47bdec/june-20-166f1.jpg

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