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Título

Ghost resonance in a pool of heterogeneous neurons

AutorBalenzuela, Pablo; García-Ojalvo, Jordi; Manjarrez, Elías; Martínez, Lourdes; Mirasso, Claudio R. CSIC ORCID
Palabras claveNeuronal dynamics
Neural coding
Signal integration
Coincidence detection
Pitch perception
Fecha de publicación10-oct-2007
EditorElsevier
CitaciónBiosystems 89, 166-172 (2007)
ResumenWe numerically study the subharmonic response of a heterogeneous pool of neurons to a pair of independent inputs. The neurons are stimulated with periodic pulse trains of frequencies f1 = 2 Hz and f2 = 3 Hz, and with inharmonic pulses whose frequencies f1 and f2 are equally shifted an amount Δf. When both inputs are subthreshold, we find that the neurons respond at a frequency equal to f2−f1 in the harmonic situation (Δf = 0), that increases linearly with Δf in the inharmonic case. Thus the neurons detect a frequency not present in the input; this effect is termed "ghost resonance". When one of the inputs is slightly suprathreshold the ghost resonance persists, but responses related with the frequency of the suprathreshold input also emerge. This behavior must be taken into account in experimental studies of signal integration and coincidence detection by neuronal pools.
Descripción7 pages.-- Final full-text version of the paper available at: http://dx.doi.org/10.1016/j.biosystems.2006.04.014.
URIhttp://hdl.handle.net/10261/6117
DOI10.1016/j.biosystems.2006.04.014
ISSN0303-2647
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