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

Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent years,...
Pulse rhythm01:30

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Entropy Changes Accompanying Specific Processes01:21

Entropy Changes Accompanying Specific Processes

Entropy, a measure of disorder in a system, changes during phase transitions like freezing or boiling. At the transition temperature Ttrs, where two phases are in equilibrium, the phase transition is a reversible process. The entropy change can be calculated from a substance's enthalpy of transition using the equation ΔStrs = ΔtrsH /Ttrs.When a perfect gas expands isothermally from one volume to another, entropy increases logarithmically with volume. Conversely, isothermal compression results...
Drug Concentration Versus Time Correlation01:15

Drug Concentration Versus Time Correlation

The plasma drug concentration-time curve is a crucial tool in pharmacokinetics, representing the drug's concentration in plasma at different time intervals post-administration. This curve illustrates the drug's journey from absorption into the systemic circulation, distribution to body tissues, and eventual elimination through excretion or biotransformation.
Two pivotal parameters are the minimum effective concentration (MEC) and the minimum toxic concentration (MTC). The MEC is the lowest drug...
Chronopharmacokinetics: Time-Dependent Pharmacokinetics01:20

Chronopharmacokinetics: Time-Dependent Pharmacokinetics

Chronopharmacokinetics studies the temporal change in drug absorption and elimination. These changes can be cyclical or non-cyclical. Cyclical changes occur over a regular interval, while non-cyclical changes occur over a longer, irregular period.
Time-dependent pharmacokinetics refers to non-cyclical changes in drug rate processes over a period of time. It can lead to nonlinear pharmacokinetics, where the relationship between drug concentration and time is not proportional. Non-cyclical...

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

Editorial: Current research and future development of neuropsychology.

Frontiers in neuroscience·2026
Same author

Time to inhibit: P300 amplitude differences in individuals with high and low temporal efficiency.

Cerebral cortex (New York, N.Y. : 1991)·2025
Same author

Processing of self-related thoughts in experienced users of classic psychedelics: A source localisation EEG study.

Progress in neuro-psychopharmacology & biological psychiatry·2024
Same author

The effect of high- and low-approach motivated sadness on frontal alpha asymmetry and other metrics.

International journal of psychophysiology : official journal of the International Organization of Psychophysiology·2024
Same author

EEG synchronization patterns during a Go/No-Go task in individuals with aphasia in subacute and chronic phases of stroke.

Scientific reports·2024
Same author

Pylabianca: comprehensive and user‑friendly Python package for single‑neuron data analysis.

Acta neurobiologiae experimentalis·2024

相关实验视频

Updated: May 14, 2026

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

9.9K

在具有高和低时间处理效率的个体中,有周期性活动差异.

Klaudia Krystecka1, Magdalena Stanczyk1, Mikolaj Magnuski1

  • 1Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.

Brain research bulletin
|June 13, 2024
PubMed
概括

时间信息处理 (TIP) 的效率与大脑活动模式有关. 较低的TIP效率与增加的非振荡性大脑活动相关,这表明较高的神经噪声会影响认知功能.

关键词:
无周期性活动.认知能力 认知能力 认知能力电脑电图 (电脑电图) 是一种脑电图.玛振荡的发生休息状态 休息状态时间信息处理时间信息处理.

更多相关视频

The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents
10:27

The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents

Published on: April 19, 2019

7.0K
Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills
09:27

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

Published on: January 19, 2024

1.2K

相关实验视频

Last Updated: May 14, 2026

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

9.9K
The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents
10:27

The Power of Interstimulus Interval for the Assessment of Temporal Processing in Rodents

Published on: April 19, 2019

7.0K
Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills
09:27

Author Spotlight: Exploring the Link Between Time Perception of Visual Stimuli and Reading Skills

Published on: January 19, 2024

1.2K

科学领域:

  • 神经科学是一个神经科学.
  • 认知科学 认知科学
  • 计算神经科学是一种神经科学.

背景情况:

  • 时间信息处理 (TIP) 对认知至关重要.
  • 以前的研究将TIP与马节奏联系起来,但忽视了非振荡性 (1/f) 脑活动.
  • 最近的发现强调了无周期性成分在大脑功能中的重要性.

研究的目的:

  • 调查TIP效率与静止状态EEG皮质活动之间的关联.
  • 检查振荡和非振荡 (无周期) 的大脑活动模式.
  • 确定非周期性活动是否区分高低TIP效率的个体.

主要方法:

  • 评估个人TIP效率使用两个行为任务测量听觉间隔歧视.
  • 将参与者分为高TIP效率和低TIP效率组.
  • 采用基于集群的EEG数据 (1-90 Hz) 的 permutation 分析来比较组间的振荡和无周期活动.

主要成果:

  • 在高和低TIP效率组之间发现了无周期组件 (30-80 Hz) 的显著差异.
  • 低TIP效率的个体显示出更高的非周期性活动,导致更平坦的功率频谱.
  • 这表明时间处理受损的参与者中神经噪声增加.

结论:

  • 休息状态的无周期性大脑活动是时间信息处理效率的显著相关.
  • 较高水平的非周期性活动 (神经噪声) 与较低的TIP效率有关.
  • 研究结果表明,神经噪声和神经处理的质量/速度降低在TIP差的个体之间存在联系.