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Objectives: Cerebral hemispheres functioning have been found to be abnormal in children with ASD. The role of lateralization in implicit and explicit motor learning has received little attention in ASD researches. The main goal of this study is investigating the differences between two hands implicit and explicit motor learning in children with ASD and typical matched group.

Methods: In the present random clinical trial study, 30 boys with ASD aged 7-11 were compared with 32 typical matched boys. Typical group and the ASDs, which were screened with ASSQ, were selected from elementary schools in Najafabad (Isfahan, Iran). Participants performed a serial reaction time task (10 blocks) with each hand in implicit and explicit group with random allocation.

Results: Learning comparison between two groups showed significant difference which means explicit learning deficit in the ASDs with right (P=0.009) and left hand (P=0.004). Results also indicated no significant difference in implicit learning between ASDs and typical matched group in right (P=0.385) and left hand (P=0.18). Hands differences also showed speeded right hand in implicit learning in children with ASD (P=0.028) while no differences was seen in explicit learning and typical children.

Discussion: Explicit learning of right and left hand was impaired in children with ASD while implicit learning of both hands maintained intact and a right hand preference in implicit motor learning was observed in children with ASD due to left striatal system abnormality.

Objectives: The present research aims to study the normal development of Percentage of Consonant Correct (PCC) in Kurdish-speaking children, with Middle Kurmanji-Mukryani Dialect as an Articulation Competency Index (ACI). PCC was examined in terms of the manner of articulation and position of sound in the word. 
Methods: In this descriptoanalytical cross-sectional study, 120 Kurdish-speaking children aged 3-5 years were evaluated by a Kurdish phonetic test. Participants were selected randomly from health centers and nursery schools in Bukan City, Iran. Nonparametric statistical tests of Kruskal-Wallis and Mann–Whitney U were used to analyze data through SPSS software (version 19).
Results: The percentage of accuracy of Kurdish language consonants gradually increased from 3 to 5 years. The results did not show any significant difference between the girls and boys (P>0.05), although girls showed better performance than boys. Kurdish-speaking children were more accurate in the pronunciation of nasal, glide, lateral, stop and flap than fricative, affricative and trill consonants. Consonants in the initial position were produced better and were more precise than consonants in the medial and final position.
Discussion: PCC is an important and helpful index for speech and language pathologists, who are involved in assessment and treatment of Kurdish-speaking children. The results of this study showed that the PCC in Kurdish-speaking children with Middle Kurmanji-Mukryani Dialect increased with age and it was related to the manner of articulation and the position of sound in words.