The relationship of alpha waves and theta waves in EEG during relaxation and IQ test

Study on the affiliation of the EEG alpha waves and theta waves during relaxation state and IQ test state from sixteen college students has been carried out in this paper. The alpha waves and theta waves are very much related to the relaxation and concentration respectively. By using data segmentation and linear regression techniques, power changes in alpha band and theta band are plotted. It is revealed that the alpha band relative power values reduced when the IQ test session is held and it is found that the Index 6 from the IQ group produced highest response of alpha and theta mean power comparing to other IQ Indexes. It is shown that the relative power segmentation techniques in conjunction with linear regression are able to shows significant dissimilarity among the IQ Index group by relating relaxation and IQ test experiments.