The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index.
Balanced Excitation and Inhibition Determine Spike Timing during Frequency Adaptation
Open accessAbstract
In layer 4 (L4) of the rat barrel cortex, a single whisker deflection evokes a stereotyped sequence of excitation followed by inhibition, hypothesized to result in a narrow temporal window for spike output. However, awake rats sweep their whiskers across objects, activating the cortex at frequencies known to induce short-term depression at both excitatory and inhibitory synapses within L4. Although periodic whisker deflection causes a frequency-dependent reduction of the cortical response magnitude, whether this adaptation involves changes in the relative balance of excitation and inhibition and how these changes might impact the proposed narrow window of spike timing in L4 is unknown. Here, we demonstrate for the first time that spike output in L4 is determined precisely by the dynamic interaction of excitatory and inhibitory conductances. Furthermore, we show that periodic whisker deflection results in balanced adaptation of the magnitude and timing of excitatory and inhibitory input to L4 neurons. This balanced adaptation mediates a reduction in spike output while preserving the narrow time window of spike generation, suggesting that L4 circuits are calibrated to maintain relative levels of excitation and inhibition across varying magnitudes of input.
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“For example, PV+ FS interneurons receive strong thalamic inputs16–20 while SOM+ non-FS interneurons receive weaker thalamic inputs21,22.”
From Layer 4 of mouse neocortex differs in cell types and circuit organization between sensory areas (2019) · cites this paper as [18]
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GABAergic Interneurons in the Neocortex: From Cellular Properties to Circuits
Tremblay, R., Lee, S., & Rudy, B. (2016) · Neuron · doi:10.1016/j.neuron.2016.06.033 · Cited by 2,033
“, 2003; Wilent and Contreras, 2005) and producing cortical responses that more precisely represent the timing of sensory input (Gabernet et al., 2005; Higley and Contreras, 2006).”
How Inhibition Shapes Cortical Activity
Isaacson, J. S., & Scanziani, M. (2011) · Neuron · doi:10.1016/j.neuron.2011.09.027 · Cited by 1,678
Acetylcholine as a Neuromodulator: Cholinergic Signaling Shapes Nervous System Function and Behavior
Picciotto, M. R., Higley, M. J., & Mineur, Y. S. (2012) · Neuron · doi:10.1016/j.neuron.2012.08.036 · Cited by 1,404
Self-citationIntegrated Brain Circuits: Astrocytic Networks Modulate Neuronal Activity and Behavior
Halassa, M. M., & Haydon, P. G. (2010) · Annual Review of Physiology · doi:10.1146/annurev-physiol-021909-135843 · Cited by 763
Synaptic basis for intense thalamocortical activation of feedforward inhibitory cells in neocortex
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Metadata
- Authors
- Higley, M. J., & Contreras, D.
- Affiliations
- University of Pennsylvania (US)
- Corresponding author
- Contreras, Diego
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2006-01-11
- Volume
- 26
- Issue
- 2
- Pages
- 448-457
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- PMC
- PMC6674406
- OpenAlex
- W2040663063
- Cited by
- 270
- References
- 65
- Citations by year
- 2026: 4 · 2025: 7 · 2024: 8 · 2023: 4 · 2022: 6 · 2021: 7 · 2020: 15 · 2019: 16 · 2018: 10 · 2017: 16 · 2016: 21 · 2015: 17 · 2014: 19 · 2013: 13 · 2012: 19
- FWCI
- 9.23
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Keywords
- excitation-inhibition balance, spike timing, frequency adaptation, short-term depression, layer 4, barrel cortex, whisker deflection
- MeSH terms
- Action Potentials, Adaptation, Physiological, Animals, Male, Synaptic Transmission, Neurons, Reaction Time, Somatosensory Cortex, Touch, Vibrissae, Rats, Sprague-Dawley, Patch-Clamp Techniques, Excitatory Postsynaptic Potentials, Rats
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