Temporal processing and context dependency of phoneme discrimination in patients with aphasia

Brain Lang. 2006 Jul;98(1):1-11. doi: 10.1016/j.bandl.2005.12.005. Epub 2006 Feb 7.

Abstract

Standard diagnostic procedures for assessing temporal-processing abilities of adult patients with aphasia have so far not been developed. In our study, temporal-order measurements were conducted using two different experimental procedures to identify a suitable measure for clinical studies. Additionally, phoneme-discrimination abilities were tested on the word, as well as on the sentence level, as a relationship between temporal processing and phoneme-discrimination abilities is assumed. Patients with aphasia displayed significantly higher temporal-order thresholds than control subjects. The detection of an association between temporal processing and speech processing, however, depended on the stimuli and the phoneme-discrimination tasks used. Our results also suggest top-down feedback on phonemic processing.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Aphasia / physiopathology*
  • Auditory Perception / physiology*
  • Case-Control Studies
  • Comprehension* / physiology
  • Discrimination, Psychological* / physiology
  • Female
  • Humans
  • Language
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Time Factors