We present the design and test of a wearable device capable to detect the user's trunk orientation with respect to the gravitational field and to provide tactile stimulation to correct tilted positions. Vibrations are delivered to the shoulders, the frontal and dorsal parts of the trunk, by using the human body as an indicator of the four cardinal directions. The device was experimentally tested in normal gravity conditions by thirty-nine volunteers. The efficacy of tactile cues was investigated in comparison to visual and visuo-tactile cues. The results revealed that, despite the fact that the time needed to complete the task was shorter when people were guided by visual signals, the tactile cues were equally informative and, in some cases, the trunk spatial orientation was even more accurate. Overall, tactile cues were evaluated by users as more intuitive, effective and accurate.

Etzi, R., Gallace, A., Massetti, G., D'Agostino, M., Cinquetti, V., Ferrise, F., et al. (2020). Conveying trunk orientation information through a wearable tactile interface. APPLIED ERGONOMICS, 88 [10.1016/j.apergo.2020.103176].

Conveying trunk orientation information through a wearable tactile interface

Etzi R.
Primo
;
Gallace A.;Massetti G.;
2020

Abstract

We present the design and test of a wearable device capable to detect the user's trunk orientation with respect to the gravitational field and to provide tactile stimulation to correct tilted positions. Vibrations are delivered to the shoulders, the frontal and dorsal parts of the trunk, by using the human body as an indicator of the four cardinal directions. The device was experimentally tested in normal gravity conditions by thirty-nine volunteers. The efficacy of tactile cues was investigated in comparison to visual and visuo-tactile cues. The results revealed that, despite the fact that the time needed to complete the task was shorter when people were guided by visual signals, the tactile cues were equally informative and, in some cases, the trunk spatial orientation was even more accurate. Overall, tactile cues were evaluated by users as more intuitive, effective and accurate.
Articolo in rivista - Articolo scientifico
Haptics; Trunk orientation; Wearable device;
English
13-giu-2020
2020
88
103176
none
Etzi, R., Gallace, A., Massetti, G., D'Agostino, M., Cinquetti, V., Ferrise, F., et al. (2020). Conveying trunk orientation information through a wearable tactile interface. APPLIED ERGONOMICS, 88 [10.1016/j.apergo.2020.103176].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/279323
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