Original sentence: Gur et al.In Gur's study, in men the percentage of GM was higher in the left hemisphere, the percentage of WM was symmetric, and the percentage of CSF was higher in the right hemisphere.In women, no asymmetry was shown.Men have a larger brain size, even when adjusted for body mass.These differences and their neurobiological bases have been sought.They also stated:.They state that the sex-based differences in percentage and asymmetry of GM and WM in the brain may account for the differences in cognitive functioning of the two sexes.Women have a higher density of neurons in certain parts of the brain.stated that the higher percentage of GM in women could compensate for less space in the cranium, since GM is used for computation more than transfer of information across distant regions.suggested that women have a higher percentage of grey matter (GM) in comparison to men, and that men have a higher percentage of white matter (WM) and of cerebrospinal fluid (CSF)
Edited sentence: According to Gur and colleagues,it is thought that the higher proportion of GM in women could compensate for lower brain volume in women.Although men have a larger brain size, even when adjusted for body mass, there is no definite indication that men are more intelligent than women.However, the neurobiological bases of these differences in behavior are unclear.In 1999, Gur and colleagues claimed:.In contrast, women have a higher density of neurons in certain parts of the brain.The differences in percentage and asymmetry of GM and WM within the brain may account for the differences in cognitive functioning of the two sexes, although no one has yet established a clear causal link between the two.The percentage of GM in men was higher in the left hemisphere, the percentage of WM was symmetric, and the percentage of CSF was higher in the right hemisphere.There is confirmation by multiple studies (both MRI segmentation and 113xenon clearance method) that women have a higher percentage of grey matter (GM) in comparison to men, whereas men have a higher percentage of white matter (WM) and of cerebrospinal fluid (CSF).Women, on the other hand, showed no asymmetries