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相关概念视频

Ordinal Level of Measurement00:55

Ordinal Level of Measurement

22.9K
The way a set of data is measured is called its level of measurement. Correct statistical procedures depend on a researcher being familiar with levels of measurement. For analysis, data are classified into four levels of measurement—nominal, ordinal, interval, and ratio.
Data measured using an ordinal scale are similar to nominal scale data, but there is one major difference. The ordinal scale data can be ordered. An example of ordinal scale data is a list of the top five national parks...
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How Data are Classified: Numerical Data00:59

How Data are Classified: Numerical Data

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Data that are countable or measurable in specific units are called numerical or quantitative data. Quantitative data are always numbers. Quantitative data are the result of counting or measuring the attributes of a population. Amount of money, pulse rate, weight, number of people living in a town, and number of students who opt for statistics are examples of quantitative data.
Quantitative data may be either discrete or continuous. All quantitative data that take on only specific numerical...
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Nominal Level of Measurement00:56

Nominal Level of Measurement

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The way a set of data is measured is called its level of measurement. Correct statistical procedures depend on a researcher being familiar with levels of measurement. Not every statistical operation can be used with every set of data. For analysis, data are classified into four levels of measurement—nominal, ordinal, interval, and ratio.
The data that cannot be measured but can be grouped into categories fall under the nominal level of measurement. Data that is measured using a nominal...
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Per-Unit Sequence Models01:26

Per-Unit Sequence Models

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An ideal Y-Y transformer, grounded through neutral impedances, displays per-unit sequence networks akin to those of a single-phase ideal transformer when subjected to balanced positive- or negative-sequence currents. These currents do not produce neutral currents, and their associated voltage drops.
Zero-sequence currents, which are identical in magnitude and phase, generate a neutral current, resulting in voltage drops across the neutral impedance and the low-voltage winding. If the...
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Numerical Calculations01:24

Numerical Calculations

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In engineering applications, the representation of the numerical value is critical. Presenting or reporting the answer is one of the essential parts of engineering practices. Numerical calculations are performed using handheld calculators or computers since numerically accurate answers are always preferred.
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
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Units of Measurement01:27

Units of Measurement

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Mechanical engineering is one of the oldest branches of engineering. It deals with designing, analyzing, and manufacturing machines and mechanical systems. To ensure precise and accurate calculations, units of measurement are used. They provide a standard system for expressing and comparing physical quantities.
There are various well-known historical measurement systems, such as the Babylonian system, the Roman system, the Egyptian system, the Olympian system, the British system, and the Indus...
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相关实验视频

Updated: Jun 5, 2025

A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras
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隐藏大小:在隐式编码对象中的大小表示.

Elif Memis1, Gizem Y Yildiz1, Gereon R Fink2

  • 1Institute of Neuroscience and Medicine (INM-3), Forschungszentrum Jülich GmbH, Jülich, Germany.

Cognition
|December 13, 2024
PubMed
概括
此摘要是机器生成的。

感知到的物体大小受到环境的影响,而不仅仅是视网膜图像大小. 这项研究表明,上下文大小调整发生在视觉处理的早期,即使是不可识别的对象.

关键词:
语境整合 语境整合 语境整合埃宾豪斯幻觉是一种幻觉.对象替代掩饰 (OSM) 是一种对象替代掩饰技术.在蒙面对象中重新调整尺寸感知.大小的平均值大小的平均值.这是一种尺寸幻觉.

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Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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相关实验视频

Last Updated: Jun 5, 2025

A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras
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Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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科学领域:

  • 视觉感知 视觉感知 视觉感知
  • 认知神经科学是一种认知神经科学.
  • 心理物理学的精神物理.

背景情况:

  • 对象大小的感知是复杂的,受视网膜角大小和上下文信息的影响.
  • 埃宾豪斯错觉展示了周围的元素如何改变物体的感知尺寸.
  • 对象替代掩饰 (OSM) 提供了一种研究早期视觉处理阶段的方法.

研究的目的:

  • 为了确定在哪个处理级别上发生上下文大小解释.
  • 为了调查是否有面具物体已经重新调整了尺寸.
  • 检查掩面和非掩面刺激对感知平均尺寸的贡献.

主要方法:

  • 使用修改后的埃宾豪斯幻觉来诱导尺寸重新缩放.
  • 使用使用点诱导器的对象替代掩饰 (OSM).
  • 使用大小平均范式来评估中央目标圈的感知平均大小.

主要成果:

  • 经过修改的埃宾豪斯幻觉成功地改变了感知到的刺激大小,并证明了强大的OSM.
  • 尺寸平均化范式检测到了由幻觉引起的感知尺寸变化.
  • 面具和非面具刺激都对尺寸重缩方式的尺寸平均做出了贡献.

结论:

  • 正如埃宾豪斯错觉所示,上下文集成在视觉处理的早期阶段就会影响尺寸表示.
  • 尺寸调整发生不管目标对象是否可识别.
  • 感知平均尺寸是相对于周围感知群体而编码的.