A Rational Analysis of the Acquisition of Multisensory Representations

Autor/inn/en	Yildirim, Ilker; Jacobs, Robert A.
Titel	A Rational Analysis of the Acquisition of Multisensory Representations
Quelle	In: Cognitive Science, 36 (2012) 2, S.305-332 (28 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0364-0213
DOI	10.1111/j.1551-6709.2011.01216.x
Schlagwörter	Perception; Sensory Integration; Multisensory Learning; Bayesian Statistics; Nonparametric Statistics; Models + Suchen Sie Ihr Suchwort? Wahrnehmung; Sensorische Integration; Sensorische Stimulation; Analogiemodell
Abstract	How do people learn multisensory, or amodal, representations, and what consequences do these representations have for perceptual performance? We address this question by performing a rational analysis of the problem of learning multisensory representations. This analysis makes use of a Bayesian nonparametric model that acquires latent multisensory features that optimally explain the unisensory features arising in individual sensory modalities. The model qualitatively accounts for several important aspects of multisensory perception: (a) it integrates information from multiple sensory sources in such a way that it leads to superior performances in, for example, categorization tasks; (b) its performances suggest that multisensory training leads to better learning than unisensory training, even when testing is conducted in unisensory conditions; (c) its multisensory representations are modality invariant; and (d) it predicts "missing" sensory representations in modalities when the input to those modalities is absent. Our rational analysis indicates that all of these aspects emerge as part of the optimal solution to the problem of learning to represent complex multisensory environments. (Contains 4 notes and 7 figures.) (As Provided).
Anmerkungen	Wiley-Blackwell. 350 Main Street, Malden, MA 02148. Tel: 800-835-6770; Tel: 781-388-8598; Fax: 781-388-8232; e-mail: cs-journals@wiley.com; Web site: http://www.wiley.com/WileyCDA/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10