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相关概念视频

Perception of Sound Waves01:01

Perception of Sound Waves

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The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
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Assessment of apical radial pulse01:25

Assessment of apical radial pulse

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Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation
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相关实验视频

Updated: May 6, 2026

Cross-Modal Multivariate Pattern Analysis
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Cross-Modal Multivariate Pattern Analysis

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在子子中感知辐射频率模式的发展.

C L Rodríguez Deliz1,2, Gerick M Lee1,3, Brittany N Bushnell4,5

  • 1Center for Neural Science, New York University, NY, NY, USA.

Journal of vision
|June 6, 2024
PubMed
概括

婴儿的形状感知很早就出现了,并且随着年龄的增长而得到了改进. 这项研究跟踪了年轻的视觉形状敏感性的发展,揭示了早期视觉处理的关键见解.

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Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI
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科学领域:

  • 神经科学是一个神经科学.
  • 发展心理学 发展心理学
  • 灵长类动物学 灵长类动物学

背景情况:

  • 婴儿灵长类动物的视力敏度有限,感知功能在婴儿期后成熟.
  • 全球形状感知在生命的最初几年里显著发展.
  • 形状敏感性在生命早期的出现和发展仍然在很大程度上没有特征.

研究的目的:

  • 为了研究婴儿的形状敏感性的发育轨迹.
  • 为了确定形状感知可测量的最早年龄.
  • 了解对曲率和形状的敏感性如何随着年龄的增长而演变.

主要方法:

  • 研究了18只2个月到10岁的.
  • 利用了辐射频率刺激 (阴极调节的圆形目标).
  • 采用了新的四个选择奇特任务和传统的两种替代强制选择任务.

主要成果:

  • 辐射频率模式的感知可以在2个月大的身上检测到.
  • 随着年龄的增长,所有辐射频率的行为表现都得到了改善.
  • 较高的辐射频率产生了更好的性能,表明细微的视觉细节的发展优先.

结论:

  • 的形状感知可以从幼儿期开始测量.
  • 视觉形状敏感性在生命早期经历了显著的发展.
  • 发育中的灵长类视觉系统显示了适应性优先处理细微视觉细节的情况.