PMID- 27739791
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180709
LR  - 20180709
IS  - 2470-0053 (Electronic)
IS  - 2470-0045 (Linking)
VI  - 94
IP  - 3-1
DP  - 2016 Sep
TI  - Emergence of spike correlations in periodically forced excitable systems.
PG  - 032218
AB  - In sensory neurons the presence of noise can facilitate the detection of weak 
      information-carrying signals, which are encoded and transmitted via correlated 
      sequences of spikes. Here we investigate the relative temporal order in spike 
      sequences induced by a subthreshold periodic input in the presence of white 
      Gaussian noise. To simulate the spikes, we use the FitzHugh-Nagumo model and to 
      investigate the output sequence of interspike intervals (ISIs), we use the 
      symbolic method of ordinal analysis. We find different types of relative temporal 
      order in the form of preferred ordinal patterns that depend on both the strength 
      of the noise and the period of the input signal. We also demonstrate a 
      resonancelike behavior, as certain periods and noise levels enhance temporal 
      ordering in the ISI sequence, maximizing the probability of the preferred 
      patterns. Our findings could be relevant for understanding the mechanisms 
      underlying temporal coding, by which single sensory neurons represent in spike 
      sequences the information about weak periodic stimuli.
FAU - Reinoso, Jose A
AU  - Reinoso JA
AD  - Departament de Fisica, Universitat Politecnica de Catalunya, Colom 11, ES-08222 
      Terrassa, Barcelona, Spain.
FAU - Torrent, M C
AU  - Torrent MC
AD  - Departament de Fisica, Universitat Politecnica de Catalunya, Colom 11, ES-08222 
      Terrassa, Barcelona, Spain.
FAU - Masoller, Cristina
AU  - Masoller C
AD  - Departament de Fisica, Universitat Politecnica de Catalunya, Colom 11, ES-08222 
      Terrassa, Barcelona, Spain.
LA  - eng
PT  - Journal Article
DEP - 20160927
PL  - United States
TA  - Phys Rev E
JT  - Physical review. E
JID - 101676019
EDAT- 2016/10/16 06:00
MHDA- 2016/10/16 06:01
CRDT- 2016/10/15 06:00
PHST- 2015/10/26 00:00 [received]
PHST- 2016/10/15 06:00 [entrez]
PHST- 2016/10/16 06:00 [pubmed]
PHST- 2016/10/16 06:01 [medline]
AID - 10.1103/PhysRevE.94.032218 [doi]
PST - ppublish
SO  - Phys Rev E. 2016 Sep;94(3-1):032218. doi: 10.1103/PhysRevE.94.032218. Epub 2016 
      Sep 27.