creators_name: Sun, Ganghua creators_name: Scassellati, Brian editors_name: Berthouze, Luc editors_name: Kaplan, Frédéric editors_name: Kozima, Hideki editors_name: Yano, Hiroyuki editors_name: Konczak, Jürgen editors_name: Metta, Giorgio editors_name: Nadel, Jacqueline editors_name: Sandini, Giulio editors_name: Stojanov, Georgi editors_name: Balkenius, Christian type: confpaper datestamp: 2006-07-23 lastmod: 2011-03-11 08:56:29 metadata_visibility: show title: Exploiting Vestibular Output during Learning Results in Naturally Curved Reaching Trajectories ispublished: pub subjects: comp-sci-mach-learn subjects: comp-sci-art-intel subjects: comp-sci-robot full_text_status: public keywords: vestibular system, Nico humanoid robot, reaching trajectory, radial basis function network, degrees-of-freedom problem, developmental robot abstract: Teaching a humanoid robot to reach for a visual target is a complex problem in part because of the high dimensionality of the control space. In this paper, we demonstrate a biologically plausible simplification of the reaching process that replaces the degrees of freedom in the neck of the robot with sensory readings from a vestibular system. We show that this simplification introduces errors that are easily overcome by a standard learning algorithm. Furthermore, the errors that are necessarily introduced by this simplification result in reaching trajectories that are curved in the same way as human reaching trajectories. date: 2005 date_type: published volume: 123 publisher: Lund University Cognitive Studies pagerange: 71-77 refereed: TRUE citation: Sun, Ganghua and Scassellati, Brian (2005) Exploiting Vestibular Output during Learning Results in Naturally Curved Reaching Trajectories. [Conference Paper] document_url: http://cogprints.org/4967/1/sun.pdf