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RRID:NXR_0.0031

Database

NXR

Proper Citation

RRID:NXR_0.0031

Species

Xenopus laevis

Availability

Available

Genomic Alteration

Strains

Catalog ID

0.0031

Publications that use this research resource

A cellular mechanism for inverse effectiveness in multisensory integration.

  • Truszkowski TL
  • Elife
  • 2017 Mar 18

Literature context: s Laevis (RRID:NXR_0.0031) tadp


Abstract:

To build a coherent view of the external world, an organism needs to integrate multiple types of sensory information from different sources, a process known as multisensory integration (MSI). Previously, we showed that the temporal dependence of MSI in the optic tectum of Xenopus laevis tadpoles is mediated by the network dynamics of the recruitment of local inhibition by sensory input (Felch et al., 2016). This was one of the first cellular-level mechanisms described for MSI. Here, we expand this cellular level view of MSI by focusing on the principle of inverse effectiveness, another central feature of MSI stating that the amount of multisensory enhancement observed inversely depends on the size of unisensory responses. We show that non-linear summation of crossmodal synaptic responses, mediated by NMDA-type glutamate receptor (NMDARs) activation, form the cellular basis for inverse effectiveness, both at the cellular and behavioral levels.

Funding information:
  • NINDS NIH HHS - F31 NS093790()