在人类感知决策过程中,一种独立于运动的紧急签名
Harvey McCone1, Ciara A Devine1, Emmet McNickle1,2
1Trinity College Institute of Neuroscience and School of Psychology, Trinity College Dublin, Dublin, Ireland.
概括
大脑使用独特的脑电图 (EEG) 信号来追踪决策紧迫性,独立于运动计划. 这种信号有助于加快认知审议,而不仅仅是行动,以更快地做出决策.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 决策 决策 决策 决策
背景情况:
- 计算模型在时间有限的决策中提出"紧急"过程,减少承诺所需的证据.
- 以前的人类研究将紧急信号定位到运动计划大脑区域.
研究的目的:
- 描述一种新的电生理信号,反映人类决策中的动态紧迫性.
- 调查这个紧急信号是否独立于机动计划和证据强度.
- 确定紧急信号是否加快了超越运动执行的认知审议.
主要方法:
- 在人类参与者 (男性和女性) 上利用了三个互补的实验.
- 使用脑电图 (EEG) 来监测大脑活动.
- 分析神经信号的紧急性特征,包括响应提示延迟.
主要成果:
- 识别了一种仅代表紧急性的EEG信号,随着时间的推移而增加,而不是证据的强度.
- 观察到这个信号在响应执行之前达到峰值并衰减,即使行动被延迟.
- 证明紧迫性过程在各种感知选择中运行,并且与模型无关.
结论:
- 大脑利用一种独立于运动的紧急信号来加快认知思考.
- 这种紧急信号可以使用EEG进行非侵入性监测.
- 紧急程序对于在各种场景中及时完成决策至关重要.
相关概念视频
Perceptual Constancy
1.4K
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
1.4K
Introduction to Test of Independence
3.0K
In statistics, the term independence means that one can directly obtain the probability of any event involving both variables by multiplying their individual probabilities. Tests of independence are chi-square tests involving the use of a contingency table of observed (data) values.
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
3.0K
Hypothesis Test for Test of Independence
8.2K
The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...
H0: The two variables (factors)...
8.2K
Decision Making
965
Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
Automatic decision-making is fast, intuitive, and relies on gut feelings...
965
Law of Independent Assortment
62.7K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
62.7K
Independent and Dependent Sources
2.6K
In electrical circuits, sources play a crucial role in providing power for the operation of the circuit. These sources can be broadly categorized into two types: independent and dependent.
Independent voltage or current sources supply a fixed amount of voltage or current, respectively, which is unaffected by other elements within the circuit. These are represented using specific symbols. Independent voltage sources are symbolized with polarities (+ and -), indicating the direction of the...
Independent voltage or current sources supply a fixed amount of voltage or current, respectively, which is unaffected by other elements within the circuit. These are represented using specific symbols. Independent voltage sources are symbolized with polarities (+ and -), indicating the direction of the...
2.6K


