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Confirmation Of Correlation Between Brain Nerve Conduction Velocity And Intelligence Level In Normal Adults, T. Reed, Philip Vernon, Andrew Johnson
Confirmation Of Correlation Between Brain Nerve Conduction Velocity And Intelligence Level In Normal Adults, T. Reed, Philip Vernon, Andrew Johnson
Andrew M. Johnson
In 1992, Reed and Jensen [Intelligence 16 (1992) 259–272] reported a positive correlation (.26; p=.002; .37 after correcting for restricted intelligence range) between a brain nerve conduction velocity (NCV) and intelligence level in 147 normal male students. In the first follow-up of their study, we report on a study using similar NCV methodologies, but testing both male and female students and using more extensive measures of cognitive abilities. One-hundred eighty-six males and 201 females, aged 18–25 years, were tested in three different NCV conditions and with nine cognitive tests, including Raven Progressive Matrices as used by Reed and Jensen. None …