Rate change detection of frequency modulated signals: developmental trends
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Ravit Cohen-Mimran
Abstract
Background: The aim of this study was to examine developmental trends in rate change detection of auditory rhythmic signals (repetitive sinusoidally frequency modulated tones).
Methods: Two groups of children (9–10 years old and 11–12 years old) and one group of young adults performed a rate change detection (RCD) task using three types of stimuli. The rate of stimulus modulation was either constant (CR), raised by 1 Hz in the middle of the stimulus (RR1) or raised by 2 Hz in the middle of the stimulus (RR2).
Results: Performance on the RCD task significantly improved with age. Also, the different stimuli showed different developmental trajectories. When the RR2 stimulus was used, results showed adult-like performance by the age of 10 years but when the RR1 stimulus was used performance continued to improve beyond 12 years of age.
Conclusions: Rate change detection of repetitive sinusoidally frequency modulated tones show protracted development beyond the age of 12 years. Given evidence for abnormal processing of auditory rhythmic signals in neurodevelopmental conditions, such as dyslexia, the present methodology might help delineate the nature of these conditions.
©2011 by Walter de Gruyter Berlin Boston
Artikel in diesem Heft
- Experimental confirmation that vibrations at soft tissue conduction sites induce hearing by way of a new mode of auditory stimulation
- Binaural masking level difference in skilled reading children and children with dyslexia
- Rate change detection of frequency modulated signals: developmental trends
- How specific is the learning in an auditory frequency discrimination task?
- Programme
- Israeli Society for Auditory Research (ISAR) 2011 Annual Scientific Meeting
- Abstracts
- Israeli Society for Auditory Research (ISAR) 2011 Annual Scientific Meeting October 25, 2011
Artikel in diesem Heft
- Experimental confirmation that vibrations at soft tissue conduction sites induce hearing by way of a new mode of auditory stimulation
- Binaural masking level difference in skilled reading children and children with dyslexia
- Rate change detection of frequency modulated signals: developmental trends
- How specific is the learning in an auditory frequency discrimination task?
- Programme
- Israeli Society for Auditory Research (ISAR) 2011 Annual Scientific Meeting
- Abstracts
- Israeli Society for Auditory Research (ISAR) 2011 Annual Scientific Meeting October 25, 2011
