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Neural Recovery Following Partial Ablation Reveals Modular Organization of a Brain Region That Encodes Learned Vocal Patterns

Title: Neural Recovery Following Partial Ablation Reveals Modular Organization of a Brain Region That Encodes Learned Vocal Patterns.
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Name(s): Holloway, Tiffanie R. (Tiffanie Renee), author
Johnson, Frank, professor directing dissertation
Morris, Richard, university representative
Hyson, Rick, committee member
Levenson, Cathy, committee member
Kelley, Colleen, committee member
Department of Psychology, degree granting department
Florida State University, degree granting institution
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2010
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: In this Dissertation, I describe the affects of altering the integration of two motor pathways (the vocal motor pathway and anterior forebrain pathway) on neural and vocal recovery in the adult male zebra finch. I first detail how damage to a premotor nucleus (HVC) changes the pattern of immediate early gene expression in several regions throughout the song control system. Interestingly I find that the expression pattern observed within HVC reveals a kind of modular organization. Furthermore, I find that although the contribution of the two pathways was transiently influenced by damage to HVC, long term changes were found to occur at the site of integration. Second, I examine how sensory feedback facilitates recovery of immediate early gene expression in song regions, as well as its affects on vocal recovery. Finally, I explore the anatomical organization of nucleus HVC by using a retrograde neuronal tracer. I find that neurons display modular connectivity and are arranged along the rostral/caudal axis of the nucleus. Given that neurons within HVC play a significant role in encoding the learned song pattern, these data provide one of the first pieces of evidence to suggest that HVC is spatially organized.
Identifier: FSU_migr_etd-3968 (IID)
Submitted Note: A Dissertation submitted to the Department of Psychology in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
Degree Awarded: Summer Semester, 2010.
Date of Defense: June 9, 2010.
Keywords: Songbird, Immediat Early Genes, Basal Ganglia, Pre-motor, Vocal Recovery, Modular Encoding
Bibliography Note: Includes bibliographical references.
Advisory Committee: Frank Johnson, Professor Directing Dissertation; Richard Morris, University Representative; Rick Hyson, Committee Member; Cathy Levenson, Committee Member; Colleen Kelley, Committee Member.
Subject(s): Psychology
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_etd-3968
Owner Institution: FSU

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Holloway, T. R. (T. R. ). (2010). Neural Recovery Following Partial Ablation Reveals Modular Organization of a Brain Region That Encodes Learned Vocal Patterns. Retrieved from http://purl.flvc.org/fsu/fd/FSU_migr_etd-3968