The neurophysiological bases of emotion: An fMRI study of the affective circumplex using emotion-denoting words.
Posner J, Russell JA, Gerber A, Gorman D, Colibazzi T, Yu S, Wang Z, Kangarlu A, Zhu H, Peterson BS.
Hum Brain Mapp. 2009 Mar; 30(3):883-95.
[Hum Brain Mapp. 2009]