为什么在语音识别中可能存在词法-前词法反?
Dennis Norris1, James M McQueen2
1MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, UK.
Cognition
|December 1, 2024
概括
在线激活反并不能改善人类的单词识别. 像TRACE这样的计算模型是不理想的,而经验数据并不支持这种用于口语识别的反机制.
科学领域:
- 认知心理学 认知心理学
- 计算语言学 计算语言学
- 听觉感知是一种听觉感知.
背景情况:
- TRACE模型 (McClelland & Elman,1986) 结合了在线激活反,模拟了口语识别中的自上而下的处理.
- 马格努森和其他人. (2023) 总结说,这种反机制增强了词识别,引用了计算和经验证据.
研究的目的:
- 质疑在线激活反可以改善人类单词识别的结论.
- 重新评估有关口语识别中的激活反的计算和经验证据.
主要方法:
- 批评 TRACE 模型对激活反的模拟.
- 分析支持激活反的经验数据的解释.
- 将 TRACE 的性能与贝叶斯模型进行比较.
主要成果:
- 在TRACE中观察到的加速可以归因于参数调整,而不仅仅是激活反.
- 与贝叶斯模型相比,TRACE的性能限制源于其低于最佳的性质.
- 马格努森等人引用的经验数据. 对替代解释开放,并且与激活反相矛盾.
结论:
- 没有足够的计算或经验依据支持主张激活反有利于人类口语识别.
- 其他反机制,例如支持感知学习的反机制,在理论上是合理的和有益的.
- 对于文字识别的在线激活反的存在和必要性仍然没有证据.
相关概念视频
Effects of feedback
515
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
515
Tip-of-the-Tongue Phenomenon
107
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...
107
Positive and Negative Feedback Loops
17.7K
Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis ("steady state"). Examples of these changes include regulation of the level of glucose or calcium in the blood or internal responses to external temperatures. Homeostasis requires maintaining an internal dynamic equilibrium:
17.7K
Language Development
318
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
318
Perceiving Loudness, Pitch, and Location
194
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
194
Chunking and Rehearsal in Sensory Memory
163
Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of...
163


