In Search of the Auditory, Phonetic, and/or Phonological Problems in Dyslexia: Context Effects in Speech Perception

Blomert, Leo; Mitterer, Holger; Paffen, Christiaan
October 2004
Journal of Speech, Language & Hearing Research;Oct2004, Vol. 47 Issue 5, p1030
Academic Journal
There is a growing consensus that developmental dyslexia is associated with a phonological-core deficit. One symptom of this phonological deficit is a subtle speech-perception deficit. The auditory basis of this deficit is still hotly debated. people with dyslexia, however, do not have an auditory deficit and perceive the underlying acoustic dimensions of speech as well as people who read normally, then why do they exhibit a categorical-perception deficit? A potential answer to this conundrum lies in the possibility that people with dyslexia do not adequately handle the context-dependent variation that speech signals typically contain. A mathematical model simulating such a sensitivity deficit mimics the speech perception deficits attributed to dyslexia. To assess the nature of the dyslexic problem, the authors examined whether children with dyslexia handle context dependencies in speech differently than do normal-reading individuals. Contrary the initial hypothesis, children with dyslexia did not show less context sensitivity speech perception than did normal-reading individuals at auditory, phonetic, and phonological levels of processing, nor did they reveal any categorization deficit. Instead, intrinsic properties of online phonological processes, not phonological representations per se, may be impaired in dyslexia.


Related Articles

  • Speech Perception Abilities of Adults With Dyslexia: Is There Any Evidence for a True Deficit? Hazan, Valerie; Messaoud-Galusi, Souhila; Rosen, Stuart; Nouwens, Suzan; Shakespeare, Bethanie // Journal of Speech, Language & Hearing Research;Dec2009, Vol. 52 Issue 6, p1510 

    Purpose: This study investigated whether adults with dyslexia show evidence of a consistent speech perception deficit by testing phoneme categorization and word perception in noise. Method: Seventeen adults with dyslexia and 20 average readers underwent a test battery including standardized...

  • ELECTROPALATOGRAPHIC AND SPECTROGRAPHIC DESCRIPTIONS OF ALLOPHONIC VARIANTS OF /l/. Lehman, Mark E.; Swartz, Bradford // Perceptual & Motor Skills;Feb2000, Vol. 90 Issue 1, p47 

    Investigates prevocalic and postvocalic /l/ in three adult subjects utilizing a combination of electropalatographic and acoustic techniques. Characteristics of prevocalic /l/; Use of models that relate physiological and acoustical aspects of speech to account for observed results.

  • Respiratory Sinus Arrhythmia During Speech Production. Reilly, Kevin J.; Moore, Christopher A. // Journal of Speech, Language & Hearing Research;Feb2003, Vol. 46 Issue 1, p164 

    The amplitude of the respiratory sinus arrhythmia (RSA) was investigated during a reading aloud task to determine whether alterations in respiratory control during speech production affect the amplitude of RSA. Changes in RSA amplitude associated with speech were evaluated by comparing RSA...

  • Recognition of multiply degraded speech by young and elderly listeners. Gordon-Salant, Sandra; Fitzgibbons, Peter J. // Journal of Speech & Hearing Research;Oct95, Vol. 38 Issue 5, p1150 

    Investigates the hypothesis that age effects exert an increased influence on speech recognition performance as the number of acoustic degradations of the speech signal increases. Age-related decline in understanding degraded speech; Signal-to-noise ratio (SNR); Multiply degraded speech.

  • Examining the role of auditory sensitivity in the... Nittrouer, Susan; Crowther, Court S. // Journal of Speech, Language & Hearing Research;Aug1998, Vol. 41 Issue 4, p809 

    Presents information on the study which examines the role of auditory sensitivity in the developmental weighting shift for speech. Materials and methods; Experimental procedures; Discussion on the results.

  • Evaluation of auditory enhancement and auditory suppression in listeners with normal hearing and... Thibodeau, Linda M. // Journal of Speech & Hearing Research;Oct96, Vol. 39 Issue 5, p947 

    Investigates the auditory performance of persons with abnormal speech recognition despite having normal hearing. Auditory suppression and auditory enhancement; Differences in hearing during two-tone suppression.

  • Compensation for Coarticulation: Disentangling Auditory and Gestural Theories of Perception of Coarticulatory Effects in Speech. Viswanathan, Navin; Magnuson, James S.; Fowler, Carol A. // Journal of Experimental Psychology. Human Perception & Performan;Aug2010, Vol. 36 Issue 4, p1005 

    According to one approach to speech perception, listeners perceive speech by applying general pattern matching mechanisms to the acoustic signal (e.g., Diehl, Lotto, & Holt, 2004). An alternative is that listeners perceive the phonetic gestures that structured the acoustic signal (e.g., Fowler,...

  • Case Study of an Auditory Dyslexic. Carpenter, Robert L.; Willis, Diane J. // Journal of Learning Disabilities;Mar1972, Vol. 5 Issue 3, p121 

    A child with a severe reading disorder of an auditory nature is presented. Intellectual and visual factors appeared to be intact, whereas very poor achievement was evidenced on a variety of auditory frisks. Evaluation of auditory functioning, the relationship of auditory perception to reading,...

  • Efectos de la retroalimentación auditiva retardada en los patrones de tartamudez. Hernández Jaramillo, Janeth; Lozada, Yelitza Gil // Revista Ciencias de la Salud;2014, Vol. 12 Issue 2, p243 

    The present study corresponds to a single subject design, analyzes the patterns of stuttering in the speech corpus in various oral language tasks, under the conditions of use or non-use of Delayed Auditory Feedback (DAF), in order to establish the effect of the DAF in the frequency of occurrence...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics