A preliminary study of EEG spectrogram of a single subject performing a creativity test

Following our previous attempts to use physiological signals to study design activities, in this paper we study EEG spectrogram of one subject when he performed non-creative and creative tasks. In the non-creative task, the subject is given a simple figure and is asked to name it as he intuitively perceives. In the creative task, the subject is presented to the same figure but is required to elaborate on it creatively. The EEG spectrogram of Fz channel is generated and evaluated based on the behaviour data. We find that beta is weak when the subject does not seem to put much effort in the task. Beta also occurs more frequently in creative tasks than in non-creative tasks.