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A new EPG protocol for assessing DDK accuracy scores in children : a Down's syndrome study

By Joanne McCann and Alan A Wrench


Recent research has suggested that eliciting\ud diadochokinetic (DDK) rate and accuracy in young\ud children is difficult [1], with analysis being timeconsuming.This paper details a new protocol for\ud assessing DDK in young children or children with\ud intellectual impairment (Down’s syndrome) and a\ud method for calculating accuracy scores\ud automatically. Accuracy scores were calculated\ud from auditory and electropalatographic analyses\ud and found to correlate in some instances. The\ud children with Down’s syndrome presented with\ud similar DDK rates to typically-developing children\ud but reduced accuracy

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  1. (1987). Clinical Assessment of Oropharyngeal Motor Development in Young Children. doi
  2. (1998). DDK rates in the paediatric clinic: a methodological minefield. doi
  3. (2000). Rate, accuracy and consistency: diadochokinetic performance of young, normally developing children. doi
  4. (2006). Speech intelligibility and childhood verbal apraxia in children with Down syndrome. doi
  5. (1978). The Fletcher time-by-count Test of Diadochokinetic Syllable Rate. doi
  6. (1996). The integrated use of maximum performance tasks in differential diagnostic evaluations among children with motor speech disorders. doi

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