publications([{
   "lang": "en",
   "type_publi": "icolcomlec",
   "doi": "https://doi.org/10.1145/3544548.3581179",
   "title": "Impact of softness on users' perception of curvature for future soft curvature-changing UIs",
   "url": "https://hal.science/hal-04045261",
   "abstract": "Soft (compliant) curvature-changing UIs provide haptic feedback through changes in softness and curvature. Different softness can impact the deformation of UIs when worn and touched, and thus impact the users' perception of the curvature. To investigate how softness impacts users’ perception of curvature, we measured participants’ curvature perception accuracy and precision in different softness conditions. We found that participants perceived the curviest surfaces with similar precision in all different softness conditions. Participants lost half the precision of the rigid material when touching the flattest surfaces with the softest material. Participants perceived all curvatures with similar accuracy in all softness conditions. The results of our experiment lay the foundation for soft curvature perception and provide guidelines for the future design of curvature- and softness-changing UIs.",
   "authors": {
      "1": {
         "first_name": "Zhuzhi",
         "last_name": "Fan"
      },
      "2": {
         "first_name": "Céline",
         "last_name": "Coutrix"
      }
   },
   "year": 2023,
   "uri": "http://iihm.imag.fr/publication/FC23a/",
   "pages": "747:1-19",
   "bibtype": "inproceedings",
   "id": 949,
   "abbr": "FC23a",
   "address": "Hamburg, Germany",
   "date": "2023-04-22",
   "type": "Conférences internationales de large diffusion avec comité de lecture sur texte complet",
   "booktitle": "2023 CHI Conference on Human Factors in Computing Systems (CHI ’23)"
},
{
   "lang": "en",
   "volume": 4,
   "doi": "https://dx.doi.org/10.1145/3427316",
   "bibtype": "article",
   "title": "Impact of Hand Used on One-Handed Back-of-Device Performance",
   "url": "https://hal.archives-ouvertes.fr/hal-02995376",
   "abstract": "One-handed Back-of-Device (BoD) interaction proved to be desired and sometimes unavoidable with a mobile touchscreen device, for both preferred and non-preferred hands. Although users' two hands are asymmetric, the impact of this asymmetry on the performance of mobile interaction has been little studied so far. Research on one-handed BoD interaction mostly focused on the preferred hand, even though users cannot avoid in real life to handle their phone with their non-preferred hand. To better design one-handed BoD interaction tailored for each hand, the identification and measure of the impact of their asymmetry are critical. In this paper, we study the impact on the performance of the asymmetry between the preferred and the non-preferred hands when interacting with one hand in the back of a mobile touch surface. Empirical data indicates that users' preferred hand performs better than the non-preferred hand in target acquisition tasks, for both time (+10%) and accuracy (+20%). In contrast, for steering tasks, we found little difference in performance between users' preferred and non-preferred hands. These results are useful for the HCI community to design mobile interaction techniques tailored for each hand only when it is necessary. We present implications for research and design directly based on the findings of the study, in particular, to reduce the impact of the asymmetry between hands and improve the performance of both hands for target acquisition.",
   "publisher": "ACM",
   "year": 2020,
   "uri": "http://iihm.imag.fr/publication/FC20a/",
   "pages": "19",
   "note": "Proc. ACM ISS 2020",
   "authors": {
      "1": {
         "first_name": "Zhuzhi",
         "last_name": "Fan"
      },
      "2": {
         "first_name": "Céline",
         "last_name": "Coutrix"
      }
   },
   "id": 901,
   "abbr": "FC20a",
   "address": "Lisbon, Portugal",
   "date": "2020-11-04",
   "type": "Revues internationales avec comité de lecture",
   "journal": "Proceedings of the ACM on Human-Computer Interaction",
   "type_publi": "irevcomlec"
}]);