title: Stochastic resonance of electrochemical aperiodic spike trains.
abstract: Aperiodic stochastic resonance in an electrochemical system with excitable dynamics is characterized in experiments and simulations. Two different spike trains, one with stochastic and the other with chaotic interspike intervals, are imposed on the system as subthreshold aperiodic signals. Information transmission is quantified by the cross correlation between the subthreshold input signal and the noise induced system response. A maximum is exhibited in the input-output correlation as a function of the noise amplitude. Numerical simulations with an electrochemical model are in excellent agreement with the experimental observations.
authors.affiliation: Facultad de Ciencias, UAEM, Colonia Chamilpa, Cuernavaca, Morelos, Mexico.
authors.forename: P
authors.initials: P
authors.lastname: Parmananda
authors.forename: Gerardo J
authors.initials: GJ
authors.lastname: Escalera Santos
authors.forename: M
authors.initials: M
authors.lastname: Rivera
authors.forename: Kenneth
authors.initials: K
authors.lastname: Showalter
mesh_terms: D019327:Copper Sulfate / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods*; D007501:Iron / Q000737:chemistry*; D008956:Models, Chemical; D015233:Models, Statistical; D009991:Oscillometry / Q000379:methods*; D010084:Oxidation-Reduction; D010507:Periodicity; D013269:Stochastic Processes; D013464:Sulfuric Acids / Q000737:chemistry*
chemical_list: D013464:Sulfuric Acids; D007501:Iron; D019327:Copper Sulfate; C033158:sulfuric acid