Benjamin K Raliski1, Molly J Kirk2, Evan W Miller1,2,3. 1. Department of Chemistry, University of California Berkeley, Berkeley, California. 2. Department of Molecular & Cell Biology, University of California Berkeley, Berkeley, California. 3. Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, California.
Abstract
Accurately mapping changes in cellular membrane potential across large groups of neurons is crucial for understanding the organization and maintenance of neural circuits. Measuring cellular voltage changes by optical means allows greater spatial resolution than traditional electrophysiology methods and is adaptable to high-throughput imaging experiments. VoltageFluors, a class of voltage-sensitive dyes, have recently been used to optically study the spontaneous activity of many neurons simultaneously in dissociated culture. VoltageFluors are particularly useful for experiments investigating differences in excitability and connectivity between neurons at different stages of development and in different disease models. The protocols in this article describe general procedures for preparing dissociated cultures, imaging spontaneous activity in dissociated cultures with VoltageFluors, and analyzing optical spontaneous activity data.
Accurately mapping changes in cellular membrane potential across large groups of neurons is crucial for understanding the organization and maintenance of neural circuits. Measuring cellular voltage changes by optical means allows greater spatial resolution than traditional electrophysiology methods and is adaptable to high-throughput imaging experiments. VoltageFluors, a class of voltage-sensitive dyes, have recently been used to optically study the spontaneous activity of many neurons simultaneously in dissociated culture. VoltageFluors are particularly useful for experiments investigating differences in excitability and connectivity between neurons at different stages of development and in different disease models. The protocols in this article describe general procedures for preparing dissociated cultures, imaging spontaneous activity in dissociated cultures with VoltageFluors, and analyzing optical spontaneous activity data.
Authors: Evan W Miller; John Y Lin; E Paxon Frady; Paul A Steinbach; William B Kristan; Roger Y Tsien Journal: Proc Natl Acad Sci U S A Date: 2012-01-24 Impact factor: 11.205
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