Abstract
We investigated the perceived frequency elicited by two vibrating probes on the skin. Participants (n = 11) compared two probes vibrating in counter-phase (25 Hz), with comparison stimuli of in-phase vibration (18–54 Hz). They indicated which had the higher perceived frequency. Skin sites on the palm (glabrous) and arm (hairy) were tested with a range of probe separations (1–16 cm) and amplitudes (10–120 µm). Perceived frequency increased with decreasing separation of the probes (F 1,10 = 182.8, p < 0.001). The two skin sites did not significantly differ (F 1,10 = 3.6, p = 0.087). Perceived frequency was only minimally affected by amplitude changes between 40 and 120 μm (F 2,20 = 6.4, p = 0.007, \( \eta_{G}^{2} = 0.06 \)). Both phase and spatial separation strongly influence vibrotactile interaction between two skin locations in a manner largely independent of changes in amplitude, and of skin type.
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This work was supported by NHMRC Project Grant APP1028284 to IB & RMV and NHMRC Project Grant APP1067353 to PB & IB.
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McIntyre, S., Birznieks, I., Andersson, R., Dicander, G., Breen, P.P., Vickery, R.M. (2016). Temporal Integration of Tactile Inputs from Multiple Sites. In: Bello, F., Kajimoto, H., Visell, Y. (eds) Haptics: Perception, Devices, Control, and Applications. EuroHaptics 2016. Lecture Notes in Computer Science(), vol 9774. Springer, Cham. https://doi.org/10.1007/978-3-319-42321-0_19
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DOI: https://doi.org/10.1007/978-3-319-42321-0_19
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