Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.

A first ethanol exposure creates three memory-like states in Drosophila. Ethanol memory-like states appear genetically and behaviorally paralleled to the canonical learning and memory traces anesthesia-sensitive, anesthesia-resistant, and long-term memory ASM, ARM, and LTM. It is unknown if these et...

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Main Authors: Caleb Larnerd, Maria Nolazco, Ashley Valdez, Vanessa Sanchez, Fred W Wolf
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-02-01
Series:PLoS Genetics
Online Access:https://doi.org/10.1371/journal.pgen.1011582
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author Caleb Larnerd
Maria Nolazco
Ashley Valdez
Vanessa Sanchez
Fred W Wolf
author_facet Caleb Larnerd
Maria Nolazco
Ashley Valdez
Vanessa Sanchez
Fred W Wolf
author_sort Caleb Larnerd
collection DOAJ
description A first ethanol exposure creates three memory-like states in Drosophila. Ethanol memory-like states appear genetically and behaviorally paralleled to the canonical learning and memory traces anesthesia-sensitive, anesthesia-resistant, and long-term memory ASM, ARM, and LTM. It is unknown if these ethanol memory-like states are also encoded by the canonical learning and memory circuitry that is centered on the mushroom bodies. We show that the three ethanol memory-like states, anesthesia-sensitive tolerance (AST) and anesthesia resistant tolerance (ART) created by ethanol sedation to a moderately high ethanol exposure, and chronic tolerance created by a longer low concentration ethanol exposure, each engage the mushroom body circuitry differently. Moreover, critical encoding steps for ethanol memory-like states reside outside the mushroom body circuitry, and within the mushroom body circuitry they are markedly distinct from classical memory traces. Thus, the first ethanol exposure creates distinct memory-like states in ethanol-specific circuits and impacts the function of learning and memory circuitry in ways that might influence the formation and retention of other memories.
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institution Kabale University
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language English
publishDate 2025-02-01
publisher Public Library of Science (PLoS)
record_format Article
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spelling doaj-art-c35e0afdf1a84ea79c81f241e4bbad772025-02-12T05:30:47ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042025-02-01212e101158210.1371/journal.pgen.1011582Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.Caleb LarnerdMaria NolazcoAshley ValdezVanessa SanchezFred W WolfA first ethanol exposure creates three memory-like states in Drosophila. Ethanol memory-like states appear genetically and behaviorally paralleled to the canonical learning and memory traces anesthesia-sensitive, anesthesia-resistant, and long-term memory ASM, ARM, and LTM. It is unknown if these ethanol memory-like states are also encoded by the canonical learning and memory circuitry that is centered on the mushroom bodies. We show that the three ethanol memory-like states, anesthesia-sensitive tolerance (AST) and anesthesia resistant tolerance (ART) created by ethanol sedation to a moderately high ethanol exposure, and chronic tolerance created by a longer low concentration ethanol exposure, each engage the mushroom body circuitry differently. Moreover, critical encoding steps for ethanol memory-like states reside outside the mushroom body circuitry, and within the mushroom body circuitry they are markedly distinct from classical memory traces. Thus, the first ethanol exposure creates distinct memory-like states in ethanol-specific circuits and impacts the function of learning and memory circuitry in ways that might influence the formation and retention of other memories.https://doi.org/10.1371/journal.pgen.1011582
spellingShingle Caleb Larnerd
Maria Nolazco
Ashley Valdez
Vanessa Sanchez
Fred W Wolf
Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.
PLoS Genetics
title Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.
title_full Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.
title_fullStr Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.
title_full_unstemmed Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.
title_short Memory-like states created by the first ethanol experience are encoded into the Drosophila mushroom body learning and memory circuitry in an ethanol-specific manner.
title_sort memory like states created by the first ethanol experience are encoded into the drosophila mushroom body learning and memory circuitry in an ethanol specific manner
url https://doi.org/10.1371/journal.pgen.1011582
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