ArticleJournal of visualized experiments : JoVE2022
Slicing the Embryonic Chicken Auditory Brainstem to Evaluate Tonotopic Gradients and Microcircuits.
Article in Journal of visualized experiments : JoVE, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 authors at 1 institution in 2 countries.
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Abstract
The chicken embryo is a widely accepted animal model to study the auditory brainstem, composed of highly specialized microcircuitry and neuronal topology differentially oriented along a tonotopic (i.e., frequency) axis. The tonotopic axis permits the segregated encoding of high-frequency sounds in the rostral-medial plane and low-frequency encoding in caudo-lateral regions. Traditionally, coronal brainstem slices of embryonic tissue permit the study of relative individual iso-frequency lamina. Although sufficient to investigate anatomical and physiological questions pertaining to individual iso-frequency regions, the study of tonotopic variation and its development across larger auditory brainstem areas is somewhat limited. This protocol reports brainstem slicing techniques from chicken embryos that encompass larger gradients of frequency regions in the lower auditory brainstem. The utilization of different slicing methods for chicken auditory brainstem tissue permits electrophysiological and anatomical experiments within one brainstem slice, where larger gradients of tonotopic properties and developmental trajectories are better preserved than coronal sections. Multiple slicing techniques allow for improved investigation of the diverse anatomical, biophysical, and tonotopic properties of auditory brainstem microcircuits.
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