Cargando…
Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals
Nervous systems need to detect stimulus changes based on their neuronal responses without using any additional information on the number, times, and types of stimulus changes. Here, two relatively simple, biologically realistic change point detection methods are compared with two common analysis met...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6779812/ https://www.ncbi.nlm.nih.gov/pubmed/31632259 http://dx.doi.org/10.3389/fncom.2019.00069 |
_version_ | 1783456978660491264 |
---|---|
author | Koepcke, Lena Hildebrandt, K. Jannis Kretzberg, Jutta |
author_facet | Koepcke, Lena Hildebrandt, K. Jannis Kretzberg, Jutta |
author_sort | Koepcke, Lena |
collection | PubMed |
description | Nervous systems need to detect stimulus changes based on their neuronal responses without using any additional information on the number, times, and types of stimulus changes. Here, two relatively simple, biologically realistic change point detection methods are compared with two common analysis methods. The four methods are applied to intra- and extracellularly recorded responses of a single cricket interneuron (AN2) to acoustic simulation. Solely based on these recorded responses, the methods should detect an unknown number of different types of sound intensity in- and decreases shortly after their occurrences. For this task, the methods rely on calculating an adjusting interspike interval (ISI). Both simple methods try to separate responses to intensity in- or decreases from activity during constant stimulation. The Pure-ISI method performs this task based on the distribution of the ISI, while the ISI-Ratio method uses the ratio of actual and previous ISI. These methods are compared to the frequently used Moving-Average method, which calculates mean and standard deviation of the instantaneous spike rate in a moving interval. Additionally, a classification method provides the upper limit of the change point detection performance that can be expected for the cricket interneuron responses. The classification learns the statistical properties of the actual and previous ISI during stimulus changes and constant stimulation from a training data set. The main results are: (1) The Moving-Average method requires a stable activity in a long interval to estimate the previous activity, which was not always given in our data set. (2) The Pure-ISI method can reliably detect stimulus intensity increases when the neuron bursts, but it fails to identify intensity decreases. (3) The ISI-Ratio method detects stimulus in- and decreases well, if the spike train is not too noisy. (4) The classification method shows good performance for the detection of stimulus in- and decreases. But due to the statistical learning, this method tends to confuse responses to constant stimulation with responses triggered by a stimulus change. Our results suggest that stimulus change detection does not require computationally costly mechanisms. Simple nervous systems like the cricket's could effectively apply ISI-Ratios to solve this fundamental task. |
format | Online Article Text |
id | pubmed-6779812 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-67798122019-10-18 Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals Koepcke, Lena Hildebrandt, K. Jannis Kretzberg, Jutta Front Comput Neurosci Neuroscience Nervous systems need to detect stimulus changes based on their neuronal responses without using any additional information on the number, times, and types of stimulus changes. Here, two relatively simple, biologically realistic change point detection methods are compared with two common analysis methods. The four methods are applied to intra- and extracellularly recorded responses of a single cricket interneuron (AN2) to acoustic simulation. Solely based on these recorded responses, the methods should detect an unknown number of different types of sound intensity in- and decreases shortly after their occurrences. For this task, the methods rely on calculating an adjusting interspike interval (ISI). Both simple methods try to separate responses to intensity in- or decreases from activity during constant stimulation. The Pure-ISI method performs this task based on the distribution of the ISI, while the ISI-Ratio method uses the ratio of actual and previous ISI. These methods are compared to the frequently used Moving-Average method, which calculates mean and standard deviation of the instantaneous spike rate in a moving interval. Additionally, a classification method provides the upper limit of the change point detection performance that can be expected for the cricket interneuron responses. The classification learns the statistical properties of the actual and previous ISI during stimulus changes and constant stimulation from a training data set. The main results are: (1) The Moving-Average method requires a stable activity in a long interval to estimate the previous activity, which was not always given in our data set. (2) The Pure-ISI method can reliably detect stimulus intensity increases when the neuron bursts, but it fails to identify intensity decreases. (3) The ISI-Ratio method detects stimulus in- and decreases well, if the spike train is not too noisy. (4) The classification method shows good performance for the detection of stimulus in- and decreases. But due to the statistical learning, this method tends to confuse responses to constant stimulation with responses triggered by a stimulus change. Our results suggest that stimulus change detection does not require computationally costly mechanisms. Simple nervous systems like the cricket's could effectively apply ISI-Ratios to solve this fundamental task. Frontiers Media S.A. 2019-10-01 /pmc/articles/PMC6779812/ /pubmed/31632259 http://dx.doi.org/10.3389/fncom.2019.00069 Text en Copyright © 2019 Koepcke, Hildebrandt and Kretzberg. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neuroscience Koepcke, Lena Hildebrandt, K. Jannis Kretzberg, Jutta Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals |
title | Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals |
title_full | Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals |
title_fullStr | Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals |
title_full_unstemmed | Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals |
title_short | Online Detection of Multiple Stimulus Changes Based on Single Neuron Interspike Intervals |
title_sort | online detection of multiple stimulus changes based on single neuron interspike intervals |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6779812/ https://www.ncbi.nlm.nih.gov/pubmed/31632259 http://dx.doi.org/10.3389/fncom.2019.00069 |
work_keys_str_mv | AT koepckelena onlinedetectionofmultiplestimuluschangesbasedonsingleneuroninterspikeintervals AT hildebrandtkjannis onlinedetectionofmultiplestimuluschangesbasedonsingleneuroninterspikeintervals AT kretzbergjutta onlinedetectionofmultiplestimuluschangesbasedonsingleneuroninterspikeintervals |