Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features.
The relation between physical stimuli and neurophysiological responses, such as action potentials (spikes) and Local Field Potentials (LFP), has recently been experimented in order to explain how neurons encode auditory information. However, none of these experiments presented analyses with postsyna...
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doaj-463e1708d1a4470398d3de3188a37cc52020-11-25T01:30:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01118e016008910.1371/journal.pone.0160089Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features.Juliana M de AssisMikaelle O SantosFrancisco M de AssisThe relation between physical stimuli and neurophysiological responses, such as action potentials (spikes) and Local Field Potentials (LFP), has recently been experimented in order to explain how neurons encode auditory information. However, none of these experiments presented analyses with postsynaptic potentials (PSPs). In the present study, we have estimated information values between auditory stimuli and amplitudes/latencies of PSPs and LFPs in anesthetized rats in vivo. To obtain these values, a new method of information estimation was used. This method produced more accurate estimates than those obtained by using the traditional binning method; a fact that was corroborated by simulated data. The traditional binning method could not certainly impart such accuracy even when adjusted by quadratic extrapolation. We found that the information obtained from LFP amplitude variation was significantly greater than the information obtained from PSP amplitude variation. This confirms the fact that LFP reflects the action of many PSPs. Results have shown that the auditory cortex codes more information of stimuli frequency with slow oscillations in groups of neurons than it does with slow oscillations in neurons separately.http://europepmc.org/articles/PMC4981406?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Juliana M de Assis Mikaelle O Santos Francisco M de Assis |
spellingShingle |
Juliana M de Assis Mikaelle O Santos Francisco M de Assis Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features. PLoS ONE |
author_facet |
Juliana M de Assis Mikaelle O Santos Francisco M de Assis |
author_sort |
Juliana M de Assis |
title |
Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features. |
title_short |
Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features. |
title_full |
Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features. |
title_fullStr |
Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features. |
title_full_unstemmed |
Auditory Stimuli Coding by Postsynaptic Potential and Local Field Potential Features. |
title_sort |
auditory stimuli coding by postsynaptic potential and local field potential features. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2016-01-01 |
description |
The relation between physical stimuli and neurophysiological responses, such as action potentials (spikes) and Local Field Potentials (LFP), has recently been experimented in order to explain how neurons encode auditory information. However, none of these experiments presented analyses with postsynaptic potentials (PSPs). In the present study, we have estimated information values between auditory stimuli and amplitudes/latencies of PSPs and LFPs in anesthetized rats in vivo. To obtain these values, a new method of information estimation was used. This method produced more accurate estimates than those obtained by using the traditional binning method; a fact that was corroborated by simulated data. The traditional binning method could not certainly impart such accuracy even when adjusted by quadratic extrapolation. We found that the information obtained from LFP amplitude variation was significantly greater than the information obtained from PSP amplitude variation. This confirms the fact that LFP reflects the action of many PSPs. Results have shown that the auditory cortex codes more information of stimuli frequency with slow oscillations in groups of neurons than it does with slow oscillations in neurons separately. |
url |
http://europepmc.org/articles/PMC4981406?pdf=render |
work_keys_str_mv |
AT julianamdeassis auditorystimulicodingbypostsynapticpotentialandlocalfieldpotentialfeatures AT mikaelleosantos auditorystimulicodingbypostsynapticpotentialandlocalfieldpotentialfeatures AT franciscomdeassis auditorystimulicodingbypostsynapticpotentialandlocalfieldpotentialfeatures |
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1725088725458747392 |