Association of BDNF levels with IQ: comparison of S100B and BDNF levels in typically developing children and subjects with neurologically normal nonsyndromic intellectual disability

Author(s):  
E. Esnafoglu ◽  
Ö. Adıgüzel
Author(s):  
Linda Gilmore ◽  
Monica Cuskelly

Abstract Despite a lack of consistent empirical evidence, there has been an ongoing assumption that intellectual disability is associated with reduced levels of motivation. The participants in this study were 33 children with Down syndrome ages 10–15 years and 33 typically developing 3–8-year-old children. Motivation was measured through observational assessments of curiosity, preference for challenge, and persistence, as well as maternal reports. There were no significant group differences on motivation tasks, but mothers of children with Down syndrome rated their children significantly lower on motivation than did parents of typically developing children. There were some intriguing group differences in the pattern of correlations among observations and parent reports. The findings challenge long-held views that individuals with intellectual disability are invariably deficient in motivation.


2017 ◽  
Vol 2 (5) ◽  
Author(s):  
Ramandeep Kaur ◽  
T. A. Subbarao

Phonology refers to the speech sound systems of a language. The term ‘phonemic’ refers to speech sound use. Most of the previous research reveals that phonological skills develop with age and thus older children had more accurate speech and fewer error patterns in their speech. The present study aimed to obtain extensive phonological data among in Hindi-speaking typically developing children across age-matched children with intellectual disability. The results revealed that phonology develops significantly with the age. Thus, older children had more accurate production and fewer error patterns in their speech relative to younger group. Also, typically developing children had a better control over their phonological aspects compared to children with intellectual disability.  A comparison with related studies has been discussed clearly in the paper which reveals a number of studies supporting the finding. The present study has significant implications for assessment of developmental speech disorders among Hindi-speaking Indian population. 


2013 ◽  
Vol 118 (2) ◽  
pp. 108-123 ◽  
Author(s):  
Susan J. Loveall ◽  
Frances A. Conners

Abstract Previous research has suggested that individuals with intellectual disability (ID) underperform in several areas of reading compared to mental age–matched peers. However, it is unclear how they compare on orthographic aspects of reading, which have to do with learning and matching the specific letter patterns in words. The leading approach to understanding orthographic learning is the self-teaching hypothesis, which suggests that orthographic learning is acquired through the experience of phonologically recoding words. The present study was a first test of the self-teaching hypothesis for individuals with ID in comparison to a group of typically developing children matched on verbal mental age. Results indicated that both groups were able to self-teach.


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