DOI: http://dx.doi.org/10.14236/ewic/eva2014.12 %%JRW\RXU%HDW9LVXDOLVLQJ+HDUWEHDWV ZLWKLQD%LRVHQVLQJ$UWZRUN -LDQQ+XJKHV 8QLYHUVLW\RI7HFKQRORJ\6\GQH\ %URDGZD\8OWLPR16:$XVWUDOLD [email protected] This paper considers participant experience of the interactive artwork BB got your beat, which uses a contact-free biosensing technology to covertly measure the heartbeat behaviour of passersby. The artwork reinterprets these intimate bodily rhythms using audiovisual feedback to support critical insight into the potential applications for this technology. BB got your beat hints at the surveillance potential of this biosensing technology using the dramatic device of cross hairs and a visual treatment reminiscent of the thermographic visualisations employed in the military surveillance of human bodies. It visualises changes in the pulse rate using as its screen a magnified, high contrast, real time video of the subject’s face – a technique that engages the subject in re-embodying their biodata. The paper discusses the artistic choices and aesthetic theory that inform the visualisation used in the artwork. It considers the phenomenological methodology that grounds this research before discussing the experiences of some of those who encountered the work. Visualisation. Art. Biosensing art. Interactive art. Affective computing. Embodiment. Phenomenology. Participant experience. Biodata. Surveillance. Heartbeat. 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A spotlight illuminates potential participants. The live feed from a camouflaged video camera is sent to a concealed laptop running software that analyses the video and generates audiovisual feedback. The live video feed is projected and altered according to changes in the heart rate as detected by the analysis software. These changes are also sonified and amplified 7KH ZRUN KDV WKUHH GLVWLQFW VWDWHVWKH GHIDXOW VWDWH WKH DFWLYH VWDWH DQG WKH HQG VWDWH 7KH GHIDXOW VWDWH LV DSSOLHG ZKHQ QR IDFH LV UHJLVWHUHG E\WKHIDFLDOUHFRJQLWLRQVRIWZDUH7KLVVWDWHXVHVD BB got your beat: visualising heartbeats within a biosensing artwork Jiann Hughes 2 Figure 2: ‘BB got your beat’ at PS gallery, Belfast. (a) The default state: before a face has been detected. (b) The active state: an increasing heart rate shown by red and yellow hues. (c) The active state: a decreasing heart rate shown by blue and green hues. 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