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Perceptual development in relation to nutritional status
S K Upadhyay1, T B Singh, A Srivastava
1Department of Pediatrics, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005.
Insights
As children age, their perceptual skills improve, with older children responding faster to visual stimuli. However, poor nutrition did not affect perceptual flexibility but did slow response times in undernourished children.
Area of Science:
- Child Development
- Perceptual Psychology
- Nutritional Science
Background:
- Perceptual skills are crucial for cognitive development in children.
- Understanding how age and nutritional status influence these skills is important for early intervention.
Purpose of the Study:
- To investigate the impact of age and nutritional status on perceptual skills in children aged 5-10 years.
- To assess changes in centration and decentration with age and nutritional status.
- To evaluate the time taken to respond to ambiguous stimuli.
Main Methods:
- A study involving 180 children aged 5-10 years, divided into three age groups.
- Utilized the Picture Ambiguity Test to assess perceptual skills, including response time and figure-ground perception (centration/decentration).
- Compared well-nourished and undernourished children's performance.
Main Results:
- Centration decreased and decentration increased with age, indicating developing perceptual flexibility.
- Older children responded more quickly to ambiguous stimuli.
- No significant difference in perceptual flexibility (centration/decentration) was found between well-nourished and undernourished children.
- Undernourished children took significantly longer to respond to ambiguous cards compared to well-nourished children.
Conclusions:
- Perceptual abilities, particularly response time, may be negatively impacted by poor nutrition in children.
- Age-related maturation significantly enhances perceptual skills and processing speed.
- Further research is needed to explore the long-term effects of nutrition on cognitive and perceptual development.
Abstract:
The present study was conducted on 180 children in the age group 5-10 years. These children were divided accordingly their ages into 3 sub-groups i.e. 5-6, 7-8 and 9-10 years respectively. In each group 60 children were studied. For the assessment of perceptual skills each child was tested with the help of Picture Ambiguity Test. Responses to the ambiguous cards were scored with respect to time taken to react in each card and ability of the child to perceive figure and ground relationship i.e. centration and decentration. The observations showed that with increase in age, centration effect reduces and majority of the children start decentring their perception by middle childhood. Further, children in higher age group took lesser time to respond on different ambiguous cards. When the responses of well-nourished and undernourished children were compared for perceptual flexibility in terms of part-whole perception i.e. centration and decentration; no difference was observed between the two groups. There was a significant difference in the performance of well-nourished and undernourished children when time to respond on ambiguous card was compared. Well-nourished children took lesser time to respond on different ambiguous cards. These observations in general suggest that poor nutrition may result in impaired perceptual abilities in children.