BIOPAC on CNN

Reading Voters' Minds—a CNN story originally aired February 4, 2008—shows BIOPAC equipment used to record facial EMG and EDA (GSR) as indicators of what eight undecided California voters like and dislike as they watch candidates debate. Data recorded with an MP150 System/TEL100C and AcqKnowledge® software is used to compare how voters said they felt about candidates with objective physiological data. BIOPAC equipment was used as part of a monitoring system set up with a market research firm.

• Click to watch the CNN video.