In the first part of the present paper the usefulness of EEG factor analytic approach to the determination of locational differences of mental functions in normal brain was critically reviewed. The second part was a summary of EEG factor analytic approaches by the present author. The alpha-band component amplitudes of EEG patterns from 12 positions of the scalp during performance of 5 verbal and 4 nonverbal tasks were recorded in 20 normal right-handed subjects. The main part of the present results was as follows : From principal factor analysis and varimax rotation after cutting-off of unchanging portions of amplitudes, four factors were derived. The first factor scores were high at Pz, C3 and F7, and 4 verbal tasks loaded on this factor. The second factor scores were high at 03, Pz and C3, and one verbal and one nonverbal task loaded on this factor. The third factor was loaded by one nonverbal task and showed high factor scores at Pz, F8 and Fp2. The fourth factor was loaded by two nonverbal tasks and showed high factor scores at T6, C4, C3 and F8. Based on these results, the significance to educational psychology was discussed.