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Verbal working memory training in cochlear implanted children
Hassanzadeh S. , Farhadi M. , Emamdjomeh H. , Daneshi A.
University of Tehran, Tehran, Iran, Islamic Republic of, 2Iran Medical University, Tehran, Iran, Islamic Republic of
Introduction: Working Memory (WM) has a central role in learning. It's the brain system for temporary storage
and manipulation of information. WM includes a central executive that controls and coordinates the operation of
two subsystems: the phonological loop and the visuo-spatial sketchpad. The phonological loop is the part of
working memory that deals with spoken and written material. Verbal Working Memory (VWM) is the ability to
store and manipulate symbolic representations of verbal information, while working on the information at the
same time. Deaf Children represent a group of subjects with a WM deficit.
Aims: The aim of the present study was to evaluate the effects of training on VWM ability, speech production
and auditory perception.
Methods: A randomized study using an intervention group (n=9) and a control group (n=7) of cochlear implanted
children, with mean age of 8.7 years was conducted. An intensive and adaptive training of verbal working
memory tasks was used. Training was presented 2 times per week for 3 months. Assessment of VWM was
performed using the word List matching, word List recall, listening recall, counting recall and backwards digit
recall. The CAPII and SIR were utilized to assess speech production and auditory perception.
Results: The results indicated that performance on VWM tasks and speech production were significantly
improved by training.
Conclusion: Training has significantly positive impacts on VWM and speech production in cochlear implanted