Complementary inhibitory weight profiles emerge from plasticity and allow attentional switching of receptive fields

E.J. Agnes, A.I. Luppi, T.P. Vogels, The Journal of Neuroscience 40 (2020) 9634–9649.

Download
OA 2020_JourNeuroscience_Agnes.pdf 2.75 MB

Journal Article | Published | English

Scopus indexed
Author
Agnes, Everton J. ; Luppi, Andrea I.; Vogels, Tim PIST Austria
Department
Abstract
Cortical areas comprise multiple types of inhibitory interneurons with stereotypical connectivity motifs, but their combined effect on postsynaptic dynamics has been largely unexplored. Here, we analyse the response of a single postsynaptic model neuron receiving tuned excitatory connections alongside inhibition from two plastic populations. Depending on the inhibitory plasticity rule, synapses remain unspecific (flat), become anti-correlated to, or mirror excitatory synapses. Crucially, the neuron’s receptive field, i.e., its response to presynaptic stimuli, depends on the modulatory state of inhibition. When both inhibitory populations are active, inhibition balances excitation, resulting in uncorrelated postsynaptic responses regardless of the inhibitory tuning profiles. Modulating the activity of a given inhibitory population produces strong correlations to either preferred or non-preferred inputs, in line with recent experimental findings showing dramatic context-dependent changes of neurons’ receptive fields. We thus confirm that a neuron’s receptive field doesn’t follow directly from the weight profiles of its presynaptic afferents.
Publishing Year
Date Published
2020-12-09
Journal Title
The Journal of Neuroscience
Volume
40
Issue
50
Page
9634-9649
eISSN
IST-REx-ID

Cite this

Agnes EJ, Luppi AI, Vogels TP. Complementary inhibitory weight profiles emerge from plasticity and allow attentional switching of receptive fields. The Journal of Neuroscience. 2020;40(50):9634-9649. doi:10.1523/JNEUROSCI.0276-20.2020
Agnes, E. J., Luppi, A. I., & Vogels, T. P. (2020). Complementary inhibitory weight profiles emerge from plasticity and allow attentional switching of receptive fields. The Journal of Neuroscience. Society for Neuroscience. https://doi.org/10.1523/JNEUROSCI.0276-20.2020
Agnes, Everton J., Andrea I. Luppi, and Tim P Vogels. “Complementary Inhibitory Weight Profiles Emerge from Plasticity and Allow Attentional Switching of Receptive Fields.” The Journal of Neuroscience. Society for Neuroscience, 2020. https://doi.org/10.1523/JNEUROSCI.0276-20.2020.
E. J. Agnes, A. I. Luppi, and T. P. Vogels, “Complementary inhibitory weight profiles emerge from plasticity and allow attentional switching of receptive fields,” The Journal of Neuroscience, vol. 40, no. 50. Society for Neuroscience, pp. 9634–9649, 2020.
Agnes EJ, Luppi AI, Vogels TP. 2020. Complementary inhibitory weight profiles emerge from plasticity and allow attentional switching of receptive fields. The Journal of Neuroscience. 40(50), 9634–9649.
Agnes, Everton J., et al. “Complementary Inhibitory Weight Profiles Emerge from Plasticity and Allow Attentional Switching of Receptive Fields.” The Journal of Neuroscience, vol. 40, no. 50, Society for Neuroscience, 2020, pp. 9634–49, doi:10.1523/JNEUROSCI.0276-20.2020.
All files available under the following license(s):
Creative Commons Attribution 4.0 International Public License (CC-BY 4.0):
Main File(s)
Access Level
OA Open Access
Date Uploaded
2020-12-28
MD5 Checksum
7977e4dd6b89357d1a5cc88babac56da


Export

Marked Publications

Open Data IST Research Explorer

Sources

PMID: 33168622
PubMed | Europe PMC

Search this title in

Google Scholar