305,084 SOCIETY Society for Psychophysiological Research Thirty-First Annual Meeting October 9-13, 1991 The Palmer House Chicago, Illinois, USA : Program abstracts. - Champaign : Publ. by The Society For Psychophysio- logical Research, 1991. - 64 s. : wykr. , 26 cm (Psychophysiology ; vol. 28 no. 3A suppl.)