---
_id: '2954'
abstract:
- lang: eng
text: Spontaneous postsynaptic currents (PSCs) provide key information about the
mechanisms of synaptic transmission and the activity modes of neuronal networks.
However, detecting spontaneous PSCs in vitro and in vivo has been challenging,
because of the small amplitude, the variable kinetics, and the undefined time
of generation of these events. Here, we describe a, to our knowledge, new method
for detecting spontaneous synaptic events by deconvolution, using a template that
approximates the average time course of spontaneous PSCs. A recorded PSC trace
is deconvolved from the template, resulting in a series of delta-like functions.
The maxima of these delta-like events are reliably detected, revealing the precise
onset times of the spontaneous PSCs. Among all detection methods, the deconvolution-based
method has a unique temporal resolution, allowing the detection of individual
events in high-frequency bursts. Furthermore, the deconvolution-based method has
a high amplitude resolution, because deconvolution can substantially increase
the signal/noise ratio. When tested against previously published methods using
experimental data, the deconvolution-based method was superior for spontaneous
PSCs recorded in vivo. Using the high-resolution deconvolution-based detection
algorithm, we show that the frequency of spontaneous excitatory postsynaptic currents
in dentate gyrus granule cells is 4.5 times higher in vivo than in vitro.
acknowledgement: "This work was supported by the Deutsche Forschungsgemeinschaft (TR3/B10)
and a European Research Council Advanced grant to P.J.\r\nWe thank H. Hu, S. J.
Guzman, and C. Schmidt-Hieber for critically reading the manuscript, I. Koeva and
F. Marr for technical support, and E. Kramberger for editorial assistance.\r\n"
article_processing_charge: No
author:
- first_name: Alejandro
full_name: Pernia-Andrade, Alejandro
id: 36963E98-F248-11E8-B48F-1D18A9856A87
last_name: Pernia-Andrade
- first_name: Sarit
full_name: Goswami, Sarit
id: 3A578F32-F248-11E8-B48F-1D18A9856A87
last_name: Goswami
- first_name: Yvonne
full_name: Stickler, Yvonne
id: 63B76600-E9CC-11E9-9B5F-82450873F7A1
last_name: Stickler
- first_name: Ulrich
full_name: Fröbe, Ulrich
last_name: Fröbe
- first_name: Alois
full_name: Schlögl, Alois
id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
last_name: Schlögl
orcid: 0000-0002-5621-8100
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
citation:
ama: Pernia-Andrade A, Goswami S, Stickler Y, Fröbe U, Schlögl A, Jonas PM. A deconvolution
based method with high sensitivity and temporal resolution for detection of spontaneous
synaptic currents in vitro and in vivo. Biophysical Journal. 2012;103(7):1429-1439.
doi:10.1016/j.bpj.2012.08.039
apa: Pernia-Andrade, A., Goswami, S., Stickler, Y., Fröbe, U., Schlögl, A., &
Jonas, P. M. (2012). A deconvolution based method with high sensitivity and temporal
resolution for detection of spontaneous synaptic currents in vitro and in vivo.
Biophysical Journal. Biophysical Society. https://doi.org/10.1016/j.bpj.2012.08.039
chicago: Pernia-Andrade, Alejandro, Sarit Goswami, Yvonne Stickler, Ulrich Fröbe,
Alois Schlögl, and Peter M Jonas. “A Deconvolution Based Method with High Sensitivity
and Temporal Resolution for Detection of Spontaneous Synaptic Currents in Vitro
and in Vivo.” Biophysical Journal. Biophysical Society, 2012. https://doi.org/10.1016/j.bpj.2012.08.039.
ieee: A. Pernia-Andrade, S. Goswami, Y. Stickler, U. Fröbe, A. Schlögl, and P. M.
Jonas, “A deconvolution based method with high sensitivity and temporal resolution
for detection of spontaneous synaptic currents in vitro and in vivo,” Biophysical
Journal, vol. 103, no. 7. Biophysical Society, pp. 1429–1439, 2012.
ista: Pernia-Andrade A, Goswami S, Stickler Y, Fröbe U, Schlögl A, Jonas PM. 2012.
A deconvolution based method with high sensitivity and temporal resolution for
detection of spontaneous synaptic currents in vitro and in vivo. Biophysical Journal.
103(7), 1429–1439.
mla: Pernia-Andrade, Alejandro, et al. “A Deconvolution Based Method with High Sensitivity
and Temporal Resolution for Detection of Spontaneous Synaptic Currents in Vitro
and in Vivo.” Biophysical Journal, vol. 103, no. 7, Biophysical Society,
2012, pp. 1429–39, doi:10.1016/j.bpj.2012.08.039.
short: A. Pernia-Andrade, S. Goswami, Y. Stickler, U. Fröbe, A. Schlögl, P.M. Jonas,
Biophysical Journal 103 (2012) 1429–1439.
corr_author: '1'
das_tickbox: '1'
date_created: 2018-12-11T12:00:32Z
date_published: 2012-10-03T00:00:00Z
date_updated: 2026-07-06T12:32:51Z
day: '03'
department:
- _id: PeJo
- _id: ScienComp
doi: 10.1016/j.bpj.2012.08.039
external_id:
isi:
- '000309571400005'
pmid:
- '23062335'
fulldoi: https://doi.org/10.1016/j.bpj.2012.08.039
intvolume: ' 103'
isi: 1
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471482/
month: '10'
oa: 1
oa_version: Submitted Version
page: 1429 - 1439
pmid: 1
project:
- _id: 25BDE9A4-B435-11E9-9278-68D0E5697425
grant_number: SFB-TR3-TP10B
name: "Glutamaterge synaptische Ã\x9Cbertragung und Plastizität in hippocampalen
Mikroschaltkreisen"
publication: Biophysical Journal
publication_status: published
publisher: Biophysical Society
publist_id: '3774'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A deconvolution based method with high sensitivity and temporal resolution
for detection of spontaneous synaptic currents in vitro and in vivo
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 103
year: '2012'
...