Motor and gestural skills of children with autism spectrum disorders (ASD), developmental coordin... more Motor and gestural skills of children with autism spectrum disorders (ASD), developmental coordination disorder (DCD), and/or attention deficit hyperactivity disorder (ADHD) were investigated. A total of 49 children with ASD, 46 children with DCD, 38 children with DCD+ADHD, 27 children with ADHD, and 78 typically developing control children participated. Motor skills were assessed with the Bruininks-Oseretsky Test of Motor Proficiency Short Form, and gestural skills were assessed using a test that required children to produce meaningful gestures to command and imitation. Children with ASD, DCD, and DCD+ADHD were significantly impaired on motor coordination skills; however, only children with ASD showed a generalized impairment in gestural performance. Examination of types of gestural errors revealed that children with ASD made significantly more incorrect action and orientation errors to command, and significantly more orientation and distortion errors to imitation than children with DCD, DCD+ADHD, ADHD, and typically developing control children. These findings suggest that gestural impairments displayed by the children with ASD were not solely attributable to deficits in motor coordination skills.
... recent studies, Miyahara (1996) concluded that there have been no consistent results on the ... more ... recent studies, Miyahara (1996) concluded that there have been no consistent results on the effect of a specific intervention approach to children with DCD in any ... Application of these criteria resulted in a preliminary selection of 76 children (19 girls and 57 boys) with a ...
Dichotic listening has been used for assessing asymmetries in processing auditory stimuli. It is ... more Dichotic listening has been used for assessing asymmetries in processing auditory stimuli. It is known that there is better recognition of dichotic stimuli in the right ear with verbal stimuli (right ear advantage, REA) by the majority of the subjects. We were interested in the psychophysiological correlates of ear advantage as it is manifested in event-related potentials (ERP). We compared ERPs to monaural and dichotic syllables in stable REA and LEA subjects. The most consistent finding was that REA subjects show larger positive ERP deflections over the left hemisphere (maximal at T5) and LEA subjects over the right hemisphere (maximal at T6) both at the latency range of 320-340 msec. Thus, brain event-related potentials support the contention that the REA and LEA reflect differential activation of the left and right hemispheres, respectively.
CHAPTER 2 Long-Term Outcomes of Developmental Coordination Disorder Marja Cantell and Libbe Koois... more CHAPTER 2 Long-Term Outcomes of Developmental Coordination Disorder Marja Cantell and Libbe Kooistra Motor development does not occur in isolation, but is set in a context of interrelated factors (Con-nolly & Forssberg, 1997) that change over time. Many so-called risk factors ...
... Thesis Details. University of Lancaster. Developmental coordination disorder in adolescence :... more ... Thesis Details. University of Lancaster. Developmental coordination disorder in adolescence : perceptual-motor, academic and social outcomes of early motor delay. Author: Cantell, Marja. Awarding Institution: University of Lancaster. Current Institution: Lancaster University. ...
The relationship between the achievement of early motor milestones in infancy and later motor dev... more The relationship between the achievement of early motor milestones in infancy and later motor development was studied in 130 children with (N = 66, 35 male/31 female) and without (N = 64, 31 male/35 female) familial risk for dyslexia. A structured parental questionnaire was used to assess motor development in infancy, and the Movement Assessment Battery for Children was used to assess motor skills at age 3.5 years. No differences were found at the group level and therefore the structural equation model was constructed by entering both groups simultaneously. An Early Body Control factor, computed from the infant data, explained 38% of the variance of the Gross Motor Skills factor at the age of 3.5 years. The results suggest a relationship between gross motor milestones in infancy and gross motor skills in toddler age. Unexpectedly, the early appearance of Early Hand Control skills in infancy had a negative association with the development of the gross motor domain at 3.5 years (explanation ratio was 9%). No significant connections between early and later fine motor skills were found. The mediating role played by postural control is discussed.
... cluster analy-sis on five factors of movement dysfunction (ie, manual dexterity, gross body c... more ... cluster analy-sis on five factors of movement dysfunction (ie, manual dexterity, gross body coordi-nation, vision, balance/hop, and active kinesthesis). Five subtypes were found: gross motor problems, good visual perception, perceptual dysfunction, good kinesthetic pro-cessing ...
The study investigated the effectiveness of a school-based movement programme for a population of... more The study investigated the effectiveness of a school-based movement programme for a population of 5 to 7 year old children. Performance profiles on the Movement ABC were used to classify the children and to assess skill changes over time. Children were assigned to four different groups: motor learning difficulty (n = 10), borderline motor learning difficulty (n = 5), trained
Motor and gestural skills of children with autism spectrum disorders (ASD), developmental coordin... more Motor and gestural skills of children with autism spectrum disorders (ASD), developmental coordination disorder (DCD), and/or attention deficit hyperactivity disorder (ADHD) were investigated. A total of 49 children with ASD, 46 children with DCD, 38 children with DCD+ADHD, 27 children with ADHD, and 78 typically developing control children participated. Motor skills were assessed with the Bruininks-Oseretsky Test of Motor Proficiency Short Form, and gestural skills were assessed using a test that required children to produce meaningful gestures to command and imitation. Children with ASD, DCD, and DCD+ADHD were significantly impaired on motor coordination skills; however, only children with ASD showed a generalized impairment in gestural performance. Examination of types of gestural errors revealed that children with ASD made significantly more incorrect action and orientation errors to command, and significantly more orientation and distortion errors to imitation than children with DCD, DCD+ADHD, ADHD, and typically developing control children. These findings suggest that gestural impairments displayed by the children with ASD were not solely attributable to deficits in motor coordination skills.
... recent studies, Miyahara (1996) concluded that there have been no consistent results on the ... more ... recent studies, Miyahara (1996) concluded that there have been no consistent results on the effect of a specific intervention approach to children with DCD in any ... Application of these criteria resulted in a preliminary selection of 76 children (19 girls and 57 boys) with a ...
Dichotic listening has been used for assessing asymmetries in processing auditory stimuli. It is ... more Dichotic listening has been used for assessing asymmetries in processing auditory stimuli. It is known that there is better recognition of dichotic stimuli in the right ear with verbal stimuli (right ear advantage, REA) by the majority of the subjects. We were interested in the psychophysiological correlates of ear advantage as it is manifested in event-related potentials (ERP). We compared ERPs to monaural and dichotic syllables in stable REA and LEA subjects. The most consistent finding was that REA subjects show larger positive ERP deflections over the left hemisphere (maximal at T5) and LEA subjects over the right hemisphere (maximal at T6) both at the latency range of 320-340 msec. Thus, brain event-related potentials support the contention that the REA and LEA reflect differential activation of the left and right hemispheres, respectively.
CHAPTER 2 Long-Term Outcomes of Developmental Coordination Disorder Marja Cantell and Libbe Koois... more CHAPTER 2 Long-Term Outcomes of Developmental Coordination Disorder Marja Cantell and Libbe Kooistra Motor development does not occur in isolation, but is set in a context of interrelated factors (Con-nolly & Forssberg, 1997) that change over time. Many so-called risk factors ...
... Thesis Details. University of Lancaster. Developmental coordination disorder in adolescence :... more ... Thesis Details. University of Lancaster. Developmental coordination disorder in adolescence : perceptual-motor, academic and social outcomes of early motor delay. Author: Cantell, Marja. Awarding Institution: University of Lancaster. Current Institution: Lancaster University. ...
The relationship between the achievement of early motor milestones in infancy and later motor dev... more The relationship between the achievement of early motor milestones in infancy and later motor development was studied in 130 children with (N = 66, 35 male/31 female) and without (N = 64, 31 male/35 female) familial risk for dyslexia. A structured parental questionnaire was used to assess motor development in infancy, and the Movement Assessment Battery for Children was used to assess motor skills at age 3.5 years. No differences were found at the group level and therefore the structural equation model was constructed by entering both groups simultaneously. An Early Body Control factor, computed from the infant data, explained 38% of the variance of the Gross Motor Skills factor at the age of 3.5 years. The results suggest a relationship between gross motor milestones in infancy and gross motor skills in toddler age. Unexpectedly, the early appearance of Early Hand Control skills in infancy had a negative association with the development of the gross motor domain at 3.5 years (explanation ratio was 9%). No significant connections between early and later fine motor skills were found. The mediating role played by postural control is discussed.
... cluster analy-sis on five factors of movement dysfunction (ie, manual dexterity, gross body c... more ... cluster analy-sis on five factors of movement dysfunction (ie, manual dexterity, gross body coordi-nation, vision, balance/hop, and active kinesthesis). Five subtypes were found: gross motor problems, good visual perception, perceptual dysfunction, good kinesthetic pro-cessing ...
The study investigated the effectiveness of a school-based movement programme for a population of... more The study investigated the effectiveness of a school-based movement programme for a population of 5 to 7 year old children. Performance profiles on the Movement ABC were used to classify the children and to assess skill changes over time. Children were assigned to four different groups: motor learning difficulty (n = 10), borderline motor learning difficulty (n = 5), trained
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