Investigating three types of continuous auditory feedback in visuo‑manual tracking
Éric O. Boyer, Frédéric Bevilacqua, Patrick Susini et Sylvain Hanneton
Exp Brain Res – DOI 10.1007/s00221-016-4827-x
(electronic publication, paper soon)
Final paper reference here : https://link.springer.com/article/10.1007/s00221-016-4827-x
The use of continuous auditory feedback for motor control and learning is still understudied and deserves more attention regarding fundamental mechanisms and applications. This paper presents the results of three experiments studying the contribution of task-error, and user-related soniﬁcation to visuo-manual tracking and assessing its beneﬁts on sensorimotor learning. First results show that soniﬁcation can help decreasing the tracking error, as well as increasing the energy in participant’s movement. In the second experiment, when alternating feedback presence, the user-related soniﬁcation did not show feedback dependency effects, contrary to the error and task-related feedback. In the third experiment, a reduced exposure of 50% diminished the positive effect of soniﬁcation on performance, whereas the increase of the average energy with sound was still signiﬁcant. In a retention test performed on the next day without auditory feedback, movement energy was still superior for the groups previously trained with the feedback. Although performance was not affected by sound, a learning effect was measurable in both sessions and the user-related group improved its performance also in the retention test. These results conﬁrm that a continuous auditory feedback can be beneﬁcial for movement training and also show an interesting effect of soniﬁcation on movement energy. User-related soniﬁcation can prevent feedback dependency and increase retention. Consequently, soniﬁcation of the user’s own motion appears as a promising solution to support movement learning with interactive feedback.
Keywords: Tracking · Auditory feedback · Sensorimotor learning · Sound · Interaction