Dynamic modulation of visual and electrosensory gains for locomotor control
| Autor: | Alican Demir, Noah J. Cowan, Erin E. Sutton, Sarah A. Stamper, Eric S. Fortune |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Visual perception Computer science media_common.quotation_subject Biomedical Engineering Biophysics Life Sciences–Earth Science interface Bioengineering Sensory system Biochemistry Biomaterials 03 medical and health sciences 0302 clinical medicine Salience (neuroscience) Feedback Sensory Perception Eigenmannia virescens Animals Computer vision Electric fish Swimming media_common biology business.industry Gymnotiformes Multisensory integration biology.organism_classification 030104 developmental biology Visual Perception Artificial intelligence business Neuroscience 030217 neurology & neurosurgery Biotechnology |
| Popis: | Animal nervous systems resolve sensory conflict for the control of movement. For example, the glass knifefish,Eigenmannia virescens, relies on visual and electrosensory feedback as it swims to maintain position within a moving refuge. To study how signals from these two parallel sensory streams are used in refuge tracking, we constructed a novel augmented reality apparatus that enables the independent manipulation of visual and electrosensory cues to freely swimming fish (n= 5). We evaluated the linearity of multisensory integration, the change to the relative perceptual weights given to vision and electrosense in relation to sensory salience, and the effect of the magnitude of sensory conflict on sensorimotor gain. First, we found that tracking behaviour obeys superposition of the sensory inputs, suggesting linear sensorimotor integration. In addition, fish rely more on vision when electrosensory salience is reduced, suggesting that fish dynamically alter sensorimotor gains in a manner consistent with Bayesian integration. However, the magnitude of sensory conflict did not significantly affect sensorimotor gain. These studies lay the theoretical and experimental groundwork for future work investigating multisensory control of locomotion. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|