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English: Inbreeding depression on cognitive abilities.

The regression analysis presents almost similar trend for VIQ (verbal IQ), PIQ (performance IQ) and FSIQ (full scale IQ). The slope depicts fitness decline (regression slope) with increase of inbreeding coefficient (F). The observed linear decline in fitness for cognitive parameters; (A) VIQ (R2 = 0.436), (B) PIQ (R2 = 0.468) and (C) FSIQ (R2 = 0.464) are found to be significant. Pearson correlation ‘r’ for VIQ, PIQ and FSIQ are −0.660, −0.684 and −0.681 respectively, and found to be statistically significant (p<0.01). The negative values indicate the decreasing trend for cognitive abilities due to inbreeding.

The study was conducted during April 2013 through July 2013 and a total of 408 children (6 to 15 years of age) were selected randomly on a priori basis from five Muslim populations viz., Gujjar and Bakarwal (n = 97), Mughal (n = 72), Malik (n = 86), Syed (n = 65) and Khan (n = 88). The age group of the children selected was 6 to 15 years.
Date Published: October 14, 2014
Source Fareed M, Afzal M (2014) Estimating the Inbreeding Depression on Cognitive Behavior: A Population Based Study of Child Cohort. PLoS ONE 9(10): e109585. doi:10.1371/journal.pone.0109585 http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0109585
Author Mohd Fareed , Mohammad Afzal
Other versions
FSIQ comparisons in respect to the degree of inbreeding
Normal distribution of cognitive abilities among inbred in comparison with non-inbred children
Cognitive abilities among inbred and non-inbred children
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