Paper Info
Title
The relationship between the presence of sulcal pits and intelligence in human brains.
Abstract
Sulcal pits are hypothesized to form early during development and be under tighter genetic control than other regions of the cortex. We investigated the relationship between the presence of sulcal pits and intellectual ability, estimated with the full-scale, verbal, and performance intelligence quotient (IQ), in the brains of 78 healthy young adults. We automatically extracted sulcal pits from magnetic resonance images and developed a method for their automatic labeling. The difference in the number of sulcal pits between high and average IQ groups for each labeled region was statistically analyzed. We found that in the high verbal IQ group a sulcal pit was more frequently present in the left posterior inferior frontal sulcus (70% in the high IQ group vs. 40% in the average IQ group) and the right posterior inferior temporal sulcus (70% vs. 43%), which have been reported to be regions of language function. Greater mean curvature of the deep sulcal areas in these regions was shown for the high verbal IQ group. This provides the complementary morphological information about the presence of more sulcal pits. These findings suggest that factors influencing verbal intelligence may emerge in the language areas early during cortical development and may be under tight genetic control.
Year
DOI
Venue
2011
10.1016/j.neuroimage.2010.12.080
NeuroImage
Keywords
Field
DocType
Genetic control,Intelligence,Language areas,Sulcal pit
Performance intelligence quotient,Developmental psychology,Inferior temporal sulcus,Left posterior,Psychology,Inferior frontal sulcus,Right posterior,Verbal reasoning
Journal
Volume
Issue
ISSN
55
4
1053-8119
Citations 
PageRank 
References 
5
0.46
9
Authors
7
Name
Order
Citations
PageRank
Kiho Im11248.40
Yu Yong Choi2313.30
Jin-Ju Yang350.80
Kun Ho Lee4354.79
Sun I Kim547353.77
P Ellen Grant620520.81
Jong-Min Lee719416.44