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the claim

Olfactory sensory neurons generate inward depolarizing receptor currents upon odorant binding that trigger action potentials.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that olfactory sensory neurons generate inward depolarizing receptor currents upon odorant binding that trigger action potentials?

Yes. Olfactory sensory neurons detect odorants through transduction cascades that generate inward depolarizing currents, which in turn trigger action potentials to relay sensory information.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

The analysis

The claim describes the foundational mechanism of olfactory transduction and neuronal excitation. Multiple retrieved papers, including direct electrophysiological recordings from human and animal olfactory sensory neurons, confirm that odorant binding initiates inward currents and action potentials.

Evidence for · 3
Molecular Strategies for Intensity-Dependent Olfactory Processing in <i>Caenorhabditis elegans</i>.
2021
Demonstrates that odorant binding triggers inward depolarizing currents through diverse signaling pathways in olfactory sensory neurons.
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H, C., Y, L., Y, X., J, S., Z, T., S, L., S, D., & L, K. (2021). Molecular Strategies for Intensity-Dependent Olfactory Processing in <i>Caenorhabditis elegans</i>.. doi.org. https://doi.org/10.3389/fnmol.2021.748214

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More for · 2
Shedding light on human olfaction: Electrophysiological recordings from sensory neurons in acute slices of olfactory epithelium.
2023
Records inward currents and action potentials in human olfactory sensory neurons responding to odorants and second messenger pathways.
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A, H., CA, S. T., G, G., C, R., FA, M., KY, G., P, B., M, T., P, B., M, D., G, T., & A, M. (2023). Shedding light on human olfaction: Electrophysiological recordings from sensory neurons in acute slices of olfactory epithelium.. doi.org. https://doi.org/10.1016/j.isci.2023.107186

Shedding light on human olfaction: electrophysiological recordings from sensory neurons in acute slices of olfactory epithelium
2023
Confirms that odorant-induced inward currents and subsequent action potentials occur in olfactory sensory neurons via cAMP signaling cascades.
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A, H., CA, S. T., G, G., C, R., FA, M., KY, G., P, B., M, T., P, B., M, D., G, T., & A, M. (2023). Shedding light on human olfaction: electrophysiological recordings from sensory neurons in acute slices of olfactory epithelium. doi.org. https://doi.org/10.1101/2023.03.27.534398

What does the evidence say?

The claim describes the foundational mechanism of olfactory transduction and neuronal excitation. Multiple retrieved papers, including direct electrophysiological recordings from human and animal olfactory sensory neurons, confirm that odorant binding initiates inward currents and action potentials.

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