Hearing loss severity: impaired processing of formant transition duration

Autor: Arnaud Coez, Yves Samson, Eric Bizaguet, Evelyne Ferrary, Monica Zilbovicius, Pascal Belin
Přispěvatelé: Voice Neurocognition Laboratory, University of Glasgow, Equipe NEMESIS - Centre de Recherches de l'Institut du Cerveau et de la Moelle épinière (NEMESIS-CRICM), Centre de Recherche de l'Institut du Cerveau et de la Moelle épinière (CRICM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Male
Consonant
medicine.medical_specialty
Hearing aids
Hearing loss
Cognitive Neuroscience
Time perception
Experimental and Cognitive Psychology
Neuropsychological Tests
Audiology
Deafness
Severity of Illness Index
behavioral disciplines and activities
01 natural sciences
03 medical and health sciences
Behavioral Neuroscience
Mental Processes
0302 clinical medicine
Stop consonant
0103 physical sciences
Reaction Time
medicine
otorhinolaryngologic diseases
[INFO.INFO-IM]Computer Science [cs]/Medical Imaging
Humans
Auditory system
Hearing Loss
010301 acoustics
Cochlea
Aged
Aged
80 and over
Analysis of Variance
Middle Aged
Sound duration
medicine.anatomical_structure
Formant
Acoustic Stimulation
Duration (music)
Female
medicine.symptom
Cognition Disorders
Psychology
psychological phenomena and processes
030217 neurology & neurosurgery
Psychoacoustics
Zdroj: Neuropsychologia
Neuropsychologia, 2010, 48 (10), pp.3057-61. ⟨10.1016/j.neuropsychologia.2010.06.016⟩
Neuropsychologia, Elsevier, 2010, 48 (10), pp.3057-61. ⟨10.1016/j.neuropsychologia.2010.06.016⟩
ISSN: 0028-3932
1873-3514
DOI: 10.1016/j.neuropsychologia.2010.06.016⟩
Popis: International audience; Normal hearing listeners exploit the formant transition (FT) detection to identify place of articulation for stop consonants. Neuro-imaging studies revealed that short FT induced less cortical activation than long FT. To determine the ability of hearing impaired listeners to distinguish short and long formant transitions (FT) from vowels of the same duration, 84 mild to severe hearing impaired listeners and 5 normal hearing listeners were asked to detect 10 synthesized stimuli with long (200 ms) or short (40 ms) FT among 30 stimuli of the same duration without FT. Hearing impaired listeners were tested with and without hearing aids. The effect of the difficulty of the task (short/long FT) was analysed as a function of the hearing loss with and without hearing aids. Normal hearing listeners were able to detect every FT (short and long). For hearing impaired listeners, the detection of long FT was better than that of short ones irrespective of their degree of hearing loss. The use of hearing aids improved detection of both kinds of FT; however, the detection of long FT remained much better than the detection of the short ones. The length of FT modified the ability of hearing impaired patients to detect FT. Short FT had access to less cortical processing than long FT and cochlea damages enhanced this specific deficit in short FT brain processing. These findings help to understand the limit of deafness rehabilitation in the time domain and should be taken into account in future devices development.
Databáze: OpenAIRE
Externí odkaz: