In vivo imaging of synapse plasticity in the mouse motor cortex

Yi Zuo, Xinzhu Yu, Kelly Tennant, Theresa Jones

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The mammalian motor cortex is capable of circuit reorganization driven by acquisition of novel motor skills. Time-lapse imaging of synaptic structures in the living brain provides valuable information on how motor learning rewires synaptic connections and how long-lasting memory is structurally encoded in the intact brain. Here we introduce a transcranial imaging protocol using two-photon laser scanning microscopy to follow fluorescently labeled postsynaptic dendritic spines in vivo. This protocol utilizes a thinned-skull preparation, which allows repetitive imaging of the same synapses over various intervals ranging from hours to years. Furthermore, intracortical microstimulation is performed at the end of repetitive imaging to confirm that images are taken from functionally responsive regions in the motor cortex.

Original languageEnglish (US)
Title of host publicationTrinucleotide Repeat Protocols
Pages45-57
Number of pages13
DOIs
StatePublished - 2013
Externally publishedYes

Publication series

NameMethods in Molecular Biology
Volume1010
ISSN (Print)1064-3745

Keywords

  • Dendritic spine
  • In vivo imaging
  • Intracortical microstimulation
  • Motor cortex
  • Two-photon microscopy

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

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