caa a22 4500 445352841 CHVBK 20180317142850.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00221-010-2517-7 doi (NATIONALLICENCE)springer-10.1007/s00221-010-2517-7 The effect of feature saliency on haptic subitizing [Elektronische Daten] [Myrthe Plaisier, Martijn Woud, Astrid Kappers] ‘Subitizing' refers to fast and error-free numerosity judgment for small (<4) sets of items. For larger sets, the slower process of ‘counting' is used. Counting has a serial character, whereas subitizing is believed to have a parallel character. While subitizing was initially found in vision, it has been shown to exist in touch as well. In vision, it has been demonstrated that adding distractor items to a set of target items influences numerosity judgment of the target items. Subitizing was in this case only possible if the distractor item is highly salient among the targets. In the present study, we investigated the effect of adding a distractor item on haptic judgement of a set of target items. To this end, we asked subjects to judge the number of spheres grasped in their hand. Either a cube or an ellipsoid could be added to the set. A cube among spheres has been shown to be highly salient, while an ellipsoid among spheres is not. Our results show that adding a distractor item led to an increase in the response time slopes regardless of the distractor shape. Subitizing was, however, only possible in the case of a salient distractor. This is in agreement with results from vision. The Author(s), 2010 Subitizing nationallicence Haptic perception nationallicence Feature saliency nationallicence Numerosity judgment nationallicence Plaisier Myrthe Helmholtz Institute, Universiteit Utrecht, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut Woud Martijn Helmholtz Institute, Universiteit Utrecht, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut Kappers Astrid Helmholtz Institute, Universiteit Utrecht, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut Experimental Brain Research Springer-Verlag 209/1(2011-03-01), 29-34 0014-4819 209:1<29 2011 209 221 https://doi.org/10.1007/s00221-010-2517-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00221-010-2517-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Plaisier Myrthe Helmholtz Institute, Universiteit Utrecht, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Woud Martijn Helmholtz Institute, Universiteit Utrecht, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Kappers Astrid Helmholtz Institute, Universiteit Utrecht, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut NATIONALLICENCE 773 0- Experimental Brain Research Springer-Verlag 209/1(2011-03-01), 29-34 0014-4819 209:1<29 2011 209 221 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer