Bayesian integration of visual and auditory signals for spatial localization
JOSA A, Vol. 20, Issue 7, pp. 1391-1397 (2003)
http://dx.doi.org/10.1364/JOSAA.20.001391
Acrobat PDF (151 KB)
Abstract
Human observers localize events in the world by using sensory signals from multiple modalities. We evaluated two theories of spatial localization that predict how visual and auditory information are weighted when these signals specify different locations in space. According to one theory (visual capture), the signal that is typically most reliable dominates in a winner-take-all competition, whereas the other theory (maximum-likelihood estimation) proposes that perceptual judgments are based on a weighted average of the sensory signals in proportion to each signal’s relative reliability. Our results indicate that both theories are partially correct, in that relative signal reliability significantly altered judgments of spatial location, but these judgments were also characterized by an overall bias to rely on visual over auditory information. These results have important implications for the development of cue integration and for neural plasticity in the adult brain that enables humans to optimally integrate multimodal information.
© 2003 Optical Society of America
[Optical Society of America ]
OCIS Codes
(330.0330) Vision, color, and visual optics : Vision, color, and visual optics
(330.1400) Vision, color, and visual optics : Vision - binocular and stereopsis
(330.4060) Vision, color, and visual optics : Vision modeling
(330.7320) Vision, color, and visual optics : Vision adaptation
Citation
Peter W. Battaglia, Robert A. Jacobs, and Richard N. Aslin, "Bayesian integration of visual and auditory signals for spatial localization," J. Opt. Soc. Am. A 20, 1391-1397 (2003)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-20-7-1391
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Relational color constancy in achromatic and isoluminant images (JOSAA)
- Chromatic contrast sensitivity: the role of absolute threshold and gain constant in differences between the fovea and the periphery (JOSAA)
- Channel selection with non-white-noise masks (JOSAA)
- Bayesian modeling of cue interaction: bistability in stereoscopic slant perception (JOSAA)
- Linear models in color constancy theory (JOSAA)
Related Conference Papers
- Simulating polychromatic retinal images
- A Model of Temporal Integration during Electrical Stimulation of the Human Retina
- Modeling the Sampling Properties of Human Cone Photoreceptor Mosaic
- A Mathematical and Experimental Simulation of Haidinger's Brushes
- A Mathematical and Experimental Simulation of Haidinger's Brushes
« Previous Article | Next Article »
OSA is a member of 