Relationship between EEG and test intelligence: A commentary.

In a recent review Vogel and Broverman concluded that, contrary to previously expressed opinions, there do appear to be relationships between EEG phenomena and IQ—at least among children, the retarded, and institutionalized geriatric and brain-damaged patients. The evidence for such relationships is reexamined. The following conclusions are drawn: (1) The evidence concerning relationships between normal brain-wave phenomena and IQ in children and in the mentally retarded is contradictory and inconclusive. (2) The weight of available evidence suggests that there is no relationship in normal adults. (3) EEG abnormality and decreased intellectual capacity are both effects of organic brain disorders, and hence tend to be related to one another. (2 p. ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)