Document Detail


Genetically encoded neural activity indicators.
MedLine Citation:
PMID:  22104761     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Recording activity from identified populations of neurons is a central goal of neuroscience. Changes in membrane depolarization, particularly action potentials, are the most important features of neural physiology to extract, although ions, neurotransmitters, neuromodulators, second messengers, and the activation state of specific proteins are also crucial. Modern fluorescence microscopy provides the basis for such activity mapping, through multi-photon imaging and other optical schemes. Probes remain the rate-limiting step for progress in this field: they should be bright and photostable, and ideally come in multiple colors. Only protein-based reagents permit chronic imaging from genetically specified cells. Here we review recent progress in the design, optimization and deployment of genetically encoded indicators for calcium ions (a proxy for action potentials), membrane potential, and neurotransmitters. We highlight seminal experiments, and present an outlook for future progress.
Authors:
Loren L Looger; Oliver Griesbeck
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-19
Journal Detail:
Title:  Current opinion in neurobiology     Volume:  -     ISSN:  1873-6882     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111376     Medline TA:  Curr Opin Neurobiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Ltd.
Affiliation:
Howard Hughes Medical Institute, Janelia Farm Research Campus, Ashburn, VA 20147, USA.
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