[The human electroencephalogram during the mental recall of emotionally colored events]

The role of the left and right brain hemispheres in mental reproduction of emotional states by human subjects was analyzed using a new technique of EEG power spectral analysis in narrow frequency bands. At the maximal emotional tension joy was shown to be characterized by an increase in the alpha peak frequency. On the contrary, sorrow accompanied by a decrease in this value. We think that the left hemisphere (as well as the right one) participate in the development of emotional reactions.