Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Randomized Experiments01:13

Randomized Experiments

6.7K
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...
6.7K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Decreased thickness of the individually-mapped genital cortex after childhood sexual abuse exposure in adult women.

Communications biology·2026
Same author

Relationships between attachment insecurity, beliefs about the self and others, paranoia, and social functioning across the psychosis continuum.

The British journal of clinical psychology·2026
Same author

Synthesis and perceptual scaling of high-resolution naturalistic images using Stable Diffusion.

Behavior research methods·2025
Same author

Metabolic inflammation, brain age and cognitive functioning in short- and long-term clinical weight loss trials.

EBioMedicine·2025
Same author

Temporal dynamics and readout latency in perception and iconic memory.

Journal of vision·2025
Same author

Males but not females report genital sensations evoked by fixed-parameter stimulation of somatosensory cortex.

Brain : a journal of neurology·2025

相关实验视频

Updated: Jun 6, 2025

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
10:33

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Published on: June 20, 2012

12.7K

不同的随机化任务的神经相关值.

Maja Guseva1,2, Carsten Bogler1, Carsten Allefeld3

  • 1Charité - Universitätsmedizin Berlin.

Journal of cognitive neuroscience
|December 2, 2024
PubMed
概括
此摘要是机器生成的。

生成随机序列涉及复杂的认知过程. 大脑成像揭示了基于任务指令的共享和独特的神经机制,即使对于类似的随机化行为也是如此.

更多相关视频

Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques
08:05

Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques

Published on: June 30, 2020

7.5K
Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies
10:09

Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies

Published on: September 22, 2014

13.1K

相关实验视频

Last Updated: Jun 6, 2025

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
10:33

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Published on: June 20, 2012

12.7K
Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques
08:05

Measuring Statistical Learning Across Modalities and Domains in School-Aged Children Via an Online Platform and Neuroimaging Techniques

Published on: June 30, 2020

7.5K
Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies
10:09

Transferring Cognitive Tasks Between Brain Imaging Modalities: Implications for Task Design and Results Interpretation in fMRI Studies

Published on: September 22, 2014

13.1K

科学领域:

  • 神经科学是一个神经科学.
  • 认知心理学 认知心理学
  • 决策 决策 决策 决策

背景情况:

  • 当选项等同时,做出选择可能会感觉随机.
  • 随机序列生成需要抑制习惯和监控选择.
  • 任务指令显著影响随机选择行为.

研究的目的:

  • 根据任务指令,调查大脑随机选择的机制是否有所不同.
  • 为了比较三个不同的随机化任务中的神经活动.

主要方法:

  • 使用功能神经成像测量大脑活动.
  • 参与者执行了三个序列生成任务:随机序列,硬币抛模拟和自由选择.
  • 利用多变量分析来识别可预测的大脑区域.

主要成果:

  • 在所有任务中都观察到一致的前对对面激活模式.
  • 某些特定区域,如下额头和额头叶片,显示活动增加.
  • "硬币投"条件独特地激活了包括右背侧前额叶皮质在内的区域.
  • 右前极预测的选择结果只有当随机性被明确指示.

结论:

  • 不同的随机化任务涉及共享和独特的神经机制.
  • 即使看似相同的随机行为也可以通过不同的大脑路径得到支持.
  • 任务指令在调节随机选择的神经基础方面发挥着至关重要的作用.