Publications - Computational Neurophysiology

  • Nasal respiration entrains delta-frequency oscillations in the prefrontal cortex and hippocampus of rodents

    08/22/2017
    We further showed that respiration-entrained LFP oscillations were abolished by tracheostomy and restored by rhythmic air puffing into the nasal cavity; moreover, in the hippocampus, RR had the maximum amplitude in the dentate gyrus hilus, the anatomical site where olfactory inputs impinge...
  • Olfactory bulb drives respiration-coupled beta oscillations in the rat hippocampus

    08/22/2017
    We find that beta oscillations simultaneously appear in HPC and OB and phase-lock across structures. Moreover, Granger causality analysis reveals that OB beta activity drives HPC beta.
  • Asymmetry of the temporal code for space by hippocampal place cells

    09/13/2017
    Here we show that the spike timing of place cells couples to theta phase before major increases in firing rate, anticipating the animal’s entrance into the classical, rate-based place field.
  • Place and grid cells in a loop: implications for memory function and spatial coding

    09/11/2017
    Based on the anatomy of the entorhinal-hippocampal circuitry, we constructed a model of place and grid cells organized in a loop to investigate their mutual influence in the establishment of their codes for space.
  • Unveiling Fast Field Oscillations through Comodulation

    08/07/2017
    Comodulation analysis unveils four different types of fast LFP activity coupled to theta: two oscillations within the traditional gamma band, HFOs, and spike-leaked activity.
  • Selective entrainment of gamma subbands by different slow network oscillations

    05/04/2017
    Respiration-induced oscillations and the theta rhythm modulate different gamma frequencies, suggesting that the brain uses different frequency channels for transferring different types of information.
  • On cross-frequency phase-phase coupling between theta and gamma oscillations in the hippocampus

    01/10/2017
    Phase-locking of hippocampal theta and gamma waves has been proposed to support memory formation, but an analysis using robust statistical methods finds no convincing evidence for the phenomenon.