Eeg Frequencies And Intelligence

Alpha frequency (AF) was one of the first measures of the EEG that has been investigated in the search for the neurobiological basis of intelligence. Many of the early studies that visually analysed the EEG traces, calculated the AF by counting the number of alpha waves in small samples of the EEG trace and calculating the mean AF. Once again, the results of these early studies were mixed. Knott, Friedman, & Bardsley (1942) reported finding a positive relationship (r +0.5) between...

Eeg Coherence And Intelligence

The previously discussed studies have mainly focussed on the EEG parameters that index local cortical activation. Although, an increasing body of evidence from behavioural and cognitive neuroscience suggests that complex goal-directed behaviour, including cognitive test performance, is underlied by a dynamic integration of anatomically distributed, but functionally related neuronal groups. This spatiotemporal 'binding' of activities in specialized cortical areas is achieved through coherent...