使用否决范式来研究解释利贝特式实验的决策模型
Yu Hei Shum1, Carl Michael Galang1, Marcel Brass2
1Berlin School of Mind and Brain & Department of Psychology, Humboldt-Universität zu Berlin, Germany.
Consciousness and cognition
|August 16, 2024
概括
这项研究表明,自由意志可能涉及到积累信息,直到达到决策门,挑战以前关于无意识准备的想法. 结果支持集成到绑定模型,并验证在线Libet任务的决策研究.
科学领域:
- 认知神经科学 认知神经科学
- 思想的哲学 思想的哲学
- 决策研究 决策研究
背景情况:
- 在Libet的实验中,意识意图之前的准备潜力 (RP) 激起了关于自由意志的辩论.
- 利贝的发现被解释为无意识的大脑活动决定了在有意识决定之前的行为.
- 其他解释,如集成到边界 (ITB) 模型,建议RP反映正在进行的决策过程.
研究的目的:
- 测试ITB模型是否能更好地解释Libet样式实验中的行为模式.
- 通过对Libet任务 (Veto Libet任务) 引入一个"是否组件"来调查"否决"现象.
- 为了比较古典利贝特任务和维托利贝特任务之间的行为指标.
主要方法:
- 引入一个"是否组件"来创建Veto Libet任务.
- 在Veto Libet任务和Classical Libet任务之间比较行为指标.
- 在线环境中首次应用Libet任务,将结果与线下研究进行比较.
主要成果:
- 维托利贝特任务中的信号积累比古典利贝特任务少,支持ITB假设.
- 在Veto Libet任务中观察到更长的等待时间和更早的自我报告意图 (W).
- 在线Libet任务中的行为参数与之前的线下研究相似.
结论:
- 研究结果支持整合到边界模型,表明有意识的意图源于积累证据到一个值.
- 行为差异凸显了Veto Libet任务对研究否决现象的有用性.
- 在线Libet任务是研究任意决策的可行平台,产生可靠的行为相关性.
更多相关视频
13:04Measuring the Subjective Value of Risky and Ambiguous Options using Experimental Economics and Functional MRI Methods
Published on: September 19, 2012
12.1K
07:42An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents
Published on: August 2, 2018
13.6K
相关概念视频
01:14Decision Making: Traditional Method
4.0K
The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
4.0K
01:09Decision Making: P-value Method
5.3K
The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim is also stated. These statements can act as null and alternative hypotheses: a null hypothesis would be a neutral statement while the alternative hypothesis can...
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim is also stated. These statements can act as null and alternative hypotheses: a null hypothesis would be a neutral statement while the alternative hypothesis can...
5.3K
01:13Randomized Experiments
6.8K
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Simple randomization
Simple...
6.8K
01:17Hypothesis: Accept or Fail to Reject?
27.7K
The outcome of any hypothesis testing leads to rejecting or not rejecting the null hypothesis. This decision is taken based on the analysis of the data, an appropriate test statistic, an appropriate confidence level, the critical values, and P-values. However, when the evidence suggests that the null hypothesis cannot be rejected, is it right to say, 'Accept' the null hypothesis?
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
27.7K
01:12Hindsight Biases
3.4K
Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now?
3.4K
01:16Experimental Designs
11.2K
An experimental design is a systematic process that allows researchers to evaluate the relationship between dependent and independent variables. There are three widely used types of experimental design - pre-experimental design, true experimental design, and quasi-experimental design. In pre-experimental design, the researcher compares the data before and after some interventions or treatments. The true-experimental design has more than one purposefully created group, a commonly measured...
11.2K