The Effect of Age and Type of Noise on Speech Perception under Conditions of Changing Context and Noise Levels: Objective: Everyday life includes fluctuating noise levels, resulting in continuously changing speech intelligibility. The study aims were: (1) to quantify the amount of decrease in age-related speech perception, as a result of increasing noise level, and (2) to test the effect of age on context usage at the word level (smaller amount of contextual cues). Patients and Methods: A total of 24 young adults (age 20-30 years) and 20 older adults (age 60-75 years) were tested. Meaningful and nonsense one-syllable consonant-vowel-consonant words were presented with the background noise types of speech noise (SpN), babble noise (BN), and white noise (WN), with a signal-to-noise ratio (SNR) of 0 and -5 dB. Results: Older adults had lower accuracy in SNR = 0, with WN being the most difficult condition for all participants. Measuring the change in speech perception when SNR decreased showed a reduction of 18.6-61.5% in intelligibility, with age effect only for BN. Both young and older adults used less phonemic context with WN, as compared to other conditions. Conclusion: Older adults are more affected by an increasing noise level of fluctuating informational noise as compared to steady-state noise. They also use less contextual cues when perceiving monosyllabic words. Further studies should take into consideration that when presenting the stimulus differently (change in noise level, less contextual cues), other perceptual and cognitive processes are involved.
Folia Phoniatr Logop 2016;68:16-21
http://ift.tt/29ho7Z6
Ιατρική : Τα αισθητικά συστήματα της όρασης,ακοής,αφής,γεύσης και όσφρησης.
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
Publication date: April 2017 Source: European Journal of Vascular and Endovascular Surgery, Volume 53, Issue 4 http://ift.tt/2oUTFL8 ...
-
Related Articles Identification of somatic TERT promoter mutations in familial non-medullary thyroid carcinomas (FNMTC). Clin Endocri...
-
Correlation Between the Epworth Sleepiness Scale and the Maintenance of Wakefulness Test in Patients With Narcolepsy Participating in Two Cl...
-
The Role of KIT Mutations in Anaphylaxis Abstract Purpose of Review Gain of function KIT mutations are detected in clonal mast cell diseases...
-
AbstractBackground Little is known about patterns of medication use and lifestyle counseling in patients with peripheral artery disease (PA...
-
# Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174, alsfakia@gmail.com , T...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου