TY  - JOUR
T1  - The Relationship Between Brain Size and Intelligence in Human
AU - , Chaoshun Zuo AU - , Zhiyi Zuo 
JO  - Research Journal of Medical Sciences
VL  - 1
IS  - 2
SP  - 70
EP  - 73
PY  - 2007
DA  - 2001/08/19
SN  - 1815-9346
DO  - rjmsci.2007.70.73
UR  - https://makhillpublications.co/view-article.php?doi=rjmsci.2007.70.73
KW  - Age
KW  -brain size
KW  -human
KW  -intelligence
KW  -lateralization
KW  - sex
AB  - A fundamental neurobiology question is whether brain size correlates with intelligence. Numerous studies have been performed to answer this question in the last 150 years. Most early studies are case reports. Many well-performed and methodology-sound studies have been published in the last few decades. The majority of these studies showed that brain size indeed correlates with intelligence. However, various coefficients  ranging  mostly from  0  to 0.6  for  this  correlation have been reported.  In this study, we will briefly review the evidence for the correlation between brain size and intelligence by discussing the results of meta-analyses. We will focus our study on discussing factors complicating the analysis of the relationship between brain size and intelligence. These factors may explain why different degrees of the correlation were observed in the previous studies. Finally, we will briefly discuss the direction of future studies to understand why people with bigger brain are smarter.
ER  - 