Coherent olfactory bulb gamma oscillations arise from coupling independent columnar oscillators
Shane T. Peace, Benjamin C. Johnson, Jesse C. Werth, Guoshi Li, Martin E. Kaiser, Izumi Fukunaga, Andreas T. Schaefer, Alyosha Molnar, Thomas A. Cleland
Abstract
Odor stimulation evokes rhythmic gamma oscillations in the field potential of the olfactory bulb, but the dynamical mechanisms governing these oscillations have remained unclear. Establishing these mechanisms is important as they determine the biophysical capacities of the bulbar circuit to, for example, maintain zero-phase coherence across a spatially extended network, or coordinate the timing of action potentials in principal neurons. These properties in turn constrain and suggest hypotheses of sensory coding.
Topics & Concepts
Olfactory bulbNeurosciencePhysicsSensory systemLocal field potentialOlfactory systemCoherence (philosophical gambling strategy)Coupling (piping)OdorRhythmCommunicationBiologyPsychologyCentral nervous systemAcousticsQuantum mechanicsEngineeringMechanical engineeringOlfactory and Sensory Function StudiesNeurobiology and Insect Physiology ResearchNeural dynamics and brain function