A joint research group of Associate Professor Satoshi Shinsako of Kio University, Mukogawa Women's University, Keio University, etc. has a characteristic that children with Developmental Coordination Disorder (DCD) are more dependent on vision than tactile sensation. For the first time, I have quantitatively revealed that I have it.
Children with DCD, a type of neurodevelopmental disorder, have a marked decline in the acquisition and performance of coordinated motor skills.Originally, when performing exercise, it is necessary to prioritize the most important sensation among various sensations in order to lead the exercise to success, for example, when walking in a bright place, relying on vision, while in the dark. Instead, the emphasis is on physical sensation and hearing when walking, but behavioral observations of children with DCD have long tended to rely too much on vision, which may adversely affect motor performance. Was suggested.However, to date, there has been no solid evidence that children with DCD have visual dependence characteristics, so in this study, we quantitatively quantify sensory dependence characteristics in children with DCD and children with typical developing (TD). Conducted the first study to investigate.
6 children with DCD from 11 to 19 years old and 19 TD children of the same age and gender participated in the experiment, and which of the visual and tactile stimuli was presented first in the visual-tactile time sequence determination task? By asking them to answer, we analyzed which perception is biased.As a result, when visual and tactile stimuli were given almost at the same time, many TD children answered that "tactile stimuli were faster", whereas children with DCD said that "visual stimuli were faster". There were many answers.In other words, a clear visual dependence tendency was observed in children with DCD compared to TD children, and in addition, a correlation was confirmed that the stronger the visual dependence tendency, the lower the fine motor skill (dexterity). rice field.
In the future, the researchers hope to clarify the causes of children with DCD giving priority to vision and the effects of changes in sensory-dependent traits on the acquisition and performance of coordinated motor skills.
Paper information:[Human Movement Science] Increased visual bias in children with developmental coordination disorder: Evidence from a visual-tactile temporal order judgment task
