期刊
JOURNAL OF NEUROSCIENCE METHODS
卷 168, 期 2, 页码 500-513出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jneumeth.2007.10.006
关键词
synaptic transmission; quantal content; EPSC; mEPSC; quantal size; deconvolution; synaptic latency; binomial model
资金
- NIMH NIH HHS [R01 MH61059, R01 MH061059-07, R01 MH061059] Funding Source: Medline
Quantal analysis of synaptic transmission is an important tool for understanding the mechanisms of synaptic plasticity and synaptic regulation. Although several custom-made and commercial algorithms have been created for the analysis of spontaneous synaptic activity, software for the analysis of action potential evoked release remains very limited. The present paper describes a user-friendly software package QUANTAN which has been created to analyze electrical recordings of postsynaptic responses. The program package is written using Borland C++ under Windows platform. QUANTAN employs and compares several algorithms to extract the average quantal content of synaptic responses, including direct quantal counts, the analysis of synaptic amplitudes, and the analysis of integrated current traces. The integration of several methods in one user-friendly program package makes quantal analysis of action potential evoked release more reliable and accurate. To evaluate the variability in quantal content, QUANTAN performs deconvolution of the distributions of amplitudes or areas of synaptic responses employing a ridge regression method. Other capabilities of QUANTAN include the analysis of the time-course and stationarity of quantal release. In summary, QUANTAN uses digital records of synaptic responses as an input and computes the distribution of quantal content and synaptic parameters. QUANTAN is freely available to other scholars over the internet. (c) 2007 Elsevier B.V. All rights reserved.
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