Abstract
We investigated the detection of vibrotactile targets against a background of concurrent non-targets, presented by eight tactors equally distributed in a horizontal band around the torso. Stimuli consisted of temporal activation patterns. Single targets (T) were presented among two to seven non-targets (N). The similarity between targets and non-targets was varied between low and high. For target-present trials the response times increased with set size, indicating a serial discrimination process. For target-absent trials the response times did not vary with the number of stimulus items, indicating a parallel discrimination process. The results showed no effect of T-N similarity. The results suggest that tactile search is not comparable to visual search.
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Groen, E., Oosterbeek, M., Toet, A., Hooge, I. (2008). Discrimination of Concurrent Vibrotactile Stimuli. In: Ferre, M. (eds) Haptics: Perception, Devices and Scenarios. EuroHaptics 2008. Lecture Notes in Computer Science, vol 5024. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69057-3_3
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DOI: https://doi.org/10.1007/978-3-540-69057-3_3
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