Related Experiment Video
Updated: Jun 25, 2025
04:30
An Experimental Paradigm for Measuring the Effects of Ageing on Sentence Processing
Published on: October 25, 2019
5.6K
Phonological processing in Chinese word repetition: Dementia effect and age effect
Yu-Te Lin1,2, Yi-Hsiu Lai3
1Center for Geriatrics and Gerontology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Clinical Linguistics & Phonetics
|May 31, 2024
Summary
Alzheimer's disease (AD) impairs phonological processing, especially with longer, low-frequency non-words. Age also significantly affects word repetition accuracy in Mandarin speakers.
Area of Science:
- Cognitive Science
- Linguistics
- Neuropsychology
Background:
- Phonological processing is crucial for language.
- Dementia, such as Alzheimer's disease (AD), can affect cognitive functions, including language.
- Understanding these effects in different linguistic contexts is important.
Purpose of the Study:
- To investigate phonological processing in Mandarin speakers with and without Alzheimer's disease (AD).
- To examine the impact of age and linguistic variables on word and non-word repetition.
- To identify specific patterns of impairment in AD.
Main Methods:
- A word and non-word repetition task was administered to 45 Mandarin Chinese speakers in Taiwan.
- Participants included individuals with AD, healthy adults, and healthy seniors.
- Repetition accuracy, error types, and error frequency were analyzed, considering linguistic variables like syllable length and frequency.
Main Results:
- A significant dementia effect was observed, with AD participants showing marked impairment in repeating longer, low-frequency non-words (specifically 5-syllable).
- Numerous significant age effects were also identified, influencing repetition performance.
- Linguistic variables, including syllable length and frequency, played a role in repetition accuracy.
Conclusions:
- Phonological processing deficits are evident in individuals with Alzheimer's disease (AD), particularly for complex linguistic stimuli.
- Age is a significant factor influencing word repetition abilities in Mandarin speakers.
- The study highlights the sensitivity of repetition tasks to cognitive decline and aging.
Related Concept Videos
01:27Language and Cognition
342
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
342
01:16Interference and Decay
135
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
135
01:30Dementia
110
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
The progression of dementia is generally gradual....
110
01:22Chunking and Rehearsal in Sensory Memory
198
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...
198
01:22Language Development
341
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...
341
01:30Cognitive Development During Adulthood
92
Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
92