词识别的显著低效率是显著的
Denis G Pelli1, Bart Farell, Deborah C Moore
1Psychology and Neural Science, New York University, New York, New York 10003, USA. denis.pelli@nyu.edu
Nature
|June 13, 2003
概括
即使是熟悉的单词也被部分识别,而不是整体. 视觉识别效率受到需要独立检测简单特征的限制,无论专业知识如何.
科学领域:
- 认知心理学 认知心理学
- 视觉感知 视觉感知 视觉感知
- 计算神经科学是一种神经科学.
背景情况:
- 对象识别理论提出的是整体或基于部分的处理.
- 虽然整体识别是高效的,但像条纹格子这样的刺激是由部分处理的.
- 熟悉和专业知识可能会促进更全面的视觉处理.
研究的目的:
- 调查熟悉的单词是否被整体识别或被部分识别.
- 为了确定阅读专业知识是否增强了字体识别,而不仅仅是特征检测.
- 测试视觉识别基本上受特征检测限制的假设.
主要方法:
- 参与者在不同的条件下识别了常见的英语单词.
- 测量词识别效率与单词长度和复杂性相关.
- 性能与基于部分识别的理论模型进行了比较.
主要成果:
- 单词识别效率与单词长度成反比例,类似于不熟悉的刺激.
- 性能限制与逐字或基于特征的识别过程是一致的.
- 人类的性能并没有超过仅依赖于独立特征检测的模型.
结论:
- 熟悉的单词识别,即使是常见的单词,依赖于检测单个字母或特征.
- 从广泛阅读中获得的专业知识并不能导致整体的词识别.
- 包括单词在内的视觉对象识别在根本上受到独立特征检测瓶的限制.
相关概念视频
Tip-of-the-Tongue Phenomenon
604
The tip-of-the-tongue (TOT) phenomenon is a cognitive experience characterized by a temporary inability to retrieve specific information from memory despite having a strong feeling of knowing the information. Although individuals cannot access the target word or detail, they frequently recall related elements, such as its initial letter, syllable count, or context. This partial retrieval often causes frustration, as one might recognize a familiar face or know that a name starts with a specific...
604
Prosopagnosia
1.1K
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
1.1K
Mechanical Efficiency of Real Machines
1.4K
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
However, in reality, no machine can be truly ideal, and all of them experience some...
1.4K
Improving Translational Accuracy
15.4K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
15.4K
Focusing of Light in the Eye
7.0K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
7.0K
Types of Errors: Detection and Minimization
11.8K
Error is the deviation of the obtained result from the true, expected value or the estimated central value. Errors are expressed in absolute or relative terms.
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
Systematic or...
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
Systematic or...
11.8K


