THE EEG AND INTELLIGENCE - AN APPRAISAL OF METHODS AND THEORIES

Formerly, attempts were made to discover some relationship between intelligence differences and measures of ''spontaneous'' EEG activity. More recently the focus of interest has shifted to a putative relationship between intelligence differences and differences in EEG responses evoked by sensory stimulation. This article identifies serious conceptual and methodological problems of the EEG-intelligence literature which render some EEG-intelligence theories untenable. It is concluded that the ''cerebral arousability'' theory of EEG-intelligence relations is the only one that can account for the physical, neurological and psychological facts while addressing the main issues that have dominated the whole field of intelligence research for the past 100 years.