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In-Depth Information
Do Brain Networks Correlate with Intelligence?
Tianzi Jiang
LIAMA Center for Computational Medicine
National Laboratory of Pattern Recognition
Institute of Automation, Chinese Academy of Sciences
Beijing 100080, P.R. China
jiangtz@nlpr.ia.ac.cn
Intuitively, higher intelligence might be assumed to correspond to more ecient
information transfer in the brain, but no direct evidence has been reported from
the perspective of brain networks. In this lecture, we first give a brief intro-
duction about the basic concepts of brain networks from different scales and
classified ways. In the second part, we present the advance on how functional
brain networks correlate with intelligence. We focus on the evidence obtained
with functional magnetic resonance imaging (fMRI) in the rest state. In the
third part of this lecture, we will discuss how individual differences in intelli-
gence are associated with brain structural organization, and in particular that
higher scores on intelligence tests are related to greater global eciency of the
brain anatomical network. We focus on the evidence obtained with diffusion ten-
sor imaging (DTI), a type of magnetic resonance imaging. In the fourth part,
we discuss the genetic basis of intelligence-related brain networks. We try to
address the issue on how intelligence-related genes influence intelligence-related
neuronal systems. The evidence based on fMRI and DTI are presented. Finally,
the future directions in this field will be presented.
