Publications - Computational Neurophysiology

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

    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

    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

    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

    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

    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

    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

    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.