期刊文献+

Chinese word processing in nonfluent aphasic patients 被引量:2

Chinese word processing in nonfluent aphasic patients
原文传递
导出
摘要 Background Chinese nonfluent aphasic patients experience apparent speech production deficit, but it remains less known in which part of Chinese speech production this deficit occurs. The present study aimed to examine the ability of nonfluent aphasic patients in Chinese orthography, phonological and semantic processing via two experiments. Experiment I disclosed the general pattern of deficit of Chinese nonfluent aphasic patients in speech production. Experiment II tested whether this deficit occurs in orthography, phonological or semantic processing. Methods The present study adopted neuropsychological testing methods to compare speech production and Chinese word processing between nonfluent aphasic patients (the patient group) and normal individuals (the control group). Character reading and word reading tasks were used to test speech production. Chinese radical decision, rhyme decision and semantic decision tasks were used to examine word processing. Reaction time and the correct answer rate were collected. Results The patient group had a longer reaction time and was more prone to errors in both character reading and word reading tasks than was the control group. For the patient group, there was no difference between the reaction time of character reading and word reading, the error rate of the former was higher than the latter. In radical decision task the reaction time and error rate to the radical "木" were higher in the patient group than in the control group. In the rhyme decision task, the reaction time and error rate to the rhyme "ang" were higher for the aphasic patients. In the semantic decision task the reaction time to characters in the category of animals was higher for the aphasic patients, yet the error rate was not significantly different between the two groups. Conclusions Nonfluent aphasic patients seemingly have decreased speed of speech production and an increased error rate. There is a deficit in phonological processing of aphasic patients while their semantic processing may remain intact. Background Chinese nonfluent aphasic patients experience apparent speech production deficit, but it remains less known in which part of Chinese speech production this deficit occurs. The present study aimed to examine the ability of nonfluent aphasic patients in Chinese orthography, phonological and semantic processing via two experiments. Experiment I disclosed the general pattern of deficit of Chinese nonfluent aphasic patients in speech production. Experiment II tested whether this deficit occurs in orthography, phonological or semantic processing. Methods The present study adopted neuropsychological testing methods to compare speech production and Chinese word processing between nonfluent aphasic patients (the patient group) and normal individuals (the control group). Character reading and word reading tasks were used to test speech production. Chinese radical decision, rhyme decision and semantic decision tasks were used to examine word processing. Reaction time and the correct answer rate were collected. Results The patient group had a longer reaction time and was more prone to errors in both character reading and word reading tasks than was the control group. For the patient group, there was no difference between the reaction time of character reading and word reading, the error rate of the former was higher than the latter. In radical decision task the reaction time and error rate to the radical "木" were higher in the patient group than in the control group. In the rhyme decision task, the reaction time and error rate to the rhyme "ang" were higher for the aphasic patients. In the semantic decision task the reaction time to characters in the category of animals was higher for the aphasic patients, yet the error rate was not significantly different between the two groups. Conclusions Nonfluent aphasic patients seemingly have decreased speed of speech production and an increased error rate. There is a deficit in phonological processing of aphasic patients while their semantic processing may remain intact.
出处 《Chinese Medical Journal》 SCIE CAS CSCD 2009年第16期1901-1906,共6页 中华医学杂志(英文版)
基金 This study was supported by a grant from the National Natural Science Foundation of China (No. 30570647).
关键词 APHASIA word processing basal ganglia aphasia word processing basal ganglia
  • 引文网络
  • 相关文献

参考文献24

  • 1Rapcsak SZ, Henry ML, Teague SL, Carnahan SD, Beeson PM. Do Dual-Route Models accurately predict reading and spelling performance in individuals with acquired alexia and agraphia? Neuropsychologia 2007; 45:2519-2524.
  • 2Jobard G, Crivello F, Tzourio-Mazoyer N. Evaluation of the dual route theory of reading:a metanalysis of 35 neuroimaging studies. Neuroimage 2003; 20: 693-712.
  • 3Croot K, Patterson K, Hodges JR. Single word production in nonfluent progressive aphasia. Brain Lang 1998; 61: 226-273.
  • 4Davis C, Kleinman JT, Newhart M, Gingis L, Pawlak M, Hillis AE. Speech and language functions that require a functioning Broca's area. Brain Lang 2008; 105: 50-58.
  • 5Sahin NT, Pinker S, Halgren E. Abstract grammatical processing of nouns and verbs in Broca's area: evidence from fMRI. Cortex 2006; 42: 540-562.
  • 6Indefrey P, Levelt WJ. The spatial and temporal signatures of word production components. Cognition 2004; 92:101-144.
  • 7Ganushchak LY, Schiller NO. Motivation and semantic context affect brain error-monitoring activity: an event-related brain potentials study. Neuroimage 2008; 39: 395-405.
  • 8Schiller NO, Horemans I, Ganushchak L, Koester D. Event-related brain potentials during the monitoring of speech errors. Neuroimage 2009; 44: 520-530.
  • 9Johns LC, Gregg L, Vythelingum N, McGuire PK. Establishing the reliability of a venal self-monitoring paradigm. Psychopathology 2003; 36: 299-303.
  • 10McGuire PK, Silbersweig DA, Frith CD. Functional neuroanatomy of verbal self-monitoring. Brain 1996; 119: 907-917.

同被引文献3

引证文献2

二级引证文献12

相关作者

;
使用帮助 返回顶部