相关实验视频

Updated: Jun 21, 2025

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents

An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents

Published on: August 2, 2018

非决策时间:决定的希格斯玻色子

Aline Bompas¹, Petroc Sumner¹, Craig Hedge²

¹Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University.

Psychological review

|July 11, 2024

概括

研究人员提出了一种测量大脑决策延迟的新方法. 他们表明",非决策时间" (NDT) 可以直接观察到行为作为传感器"死亡时间",提供比当前模型更可靠的测量方法.

科学领域:

认知神经科学是一种认知神经科学.
心理学心理学心理学
临床神经科学临床神经科学

背景情况:

决策的生成模型在心理学和神经科学中被广泛使用.
从行为中估计非决策时间 (NDT) 已经依赖于模型,直接观察有限.
对于从行为数据中理解决策机制,NDT至关重要.

研究的目的:

提出一个生物定义的决定,包括感知歧视和行动选择.
将NDT等同于感应运动延迟或"死亡时间".
展示一种直接观察行为数据延迟的方法,而无需建模假设.

主要方法:

利用视觉干扰方法直接观察感觉运动延迟.
将该方法应用于来自多个实验室的人类和子数据集.
验证了视觉运动死亡时间 (VMDT) 的经验测量与视觉特性和内生因素相比.

主要成果:

视觉运动死亡时间 (VMDT) 经验测量,并显示受视觉特性 (亮度,颜色,尺寸) 的影响.
VMDT不受战略减速或注意力等内源因素的影响,支持选择性影响假设.
来自EZ,漂移扩散和线性弹道蓄积器模型的NDT参数并不总是反映经验观察到的视觉运动延迟.

结论:

视觉干扰方法提供了一种直接的,无模型的方法来观察传感运动延迟 (VMDT).
经验测量VMDT提供了一个更可靠的视觉运动延迟测量比NDT估计从常见的计算模型.
标准模型中的NDT参数可能无法准确地捕捉群体或个人层面的视觉运动延迟.

更多相关视频

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents

Published on: September 10, 2018

Setting Limits on Supersymmetry Using Simplified Models

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

相关概念视频

¹³C NMR: ¹H–¹³C Decoupling

¹³C NMR: ¹H–¹³C Decoupling

The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...

2D NMR: Overview of Heteronuclear Correlation Techniques

2D NMR: Overview of Heteronuclear Correlation Techniques

Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an X-nucleus, such as carbon-13 or nitrogen-15. This method is commonly used in nuclear magnetic resonance (NMR) spectroscopy to gain insights into complex chemical compounds' structural and compositional aspects. A typical heteronuclear correlation spectrum displays X-nucleus chemical shifts on one axis and a proton spectrum on the other...

Atomic Nuclei: Types of Nuclear Relaxation

Atomic Nuclei: Types of Nuclear Relaxation

Nuclear relaxation restores the equilibrium population imbalance and can occur via spin–lattice or spin–spin mechanisms, which are first-order exponential decay processes.
In spin–lattice or longitudinal relaxation, the excited spins exchange energy with the surrounding lattice as they return to the lower energy level. Among several mechanisms that contribute to spin–lattice relaxation, magnetic dipolar interactions are significant. Here, the excited nucleus transfers...