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Showing 1–8 of 8 results
Advanced filters: Author: Torkel Hafting Clear advanced filters

  • In the brain, both rate and temporal codes are critical for information storage. Theta phase precession is a change in action potential timing in the hippocampus where place cells fire at progressively earlier phases of the theta rhythm as the animal moves across the firing field of the neuron. This paper explores the circuitry of theta phase precession and shows that phase precession is expressed independently of the hippocampus in spatially modulated grid cells in parts of the entorhinal cortex.

    • Torkel Hafting
    • Marianne Fyhn
    • Edvard I. Moser
    Research
    Nature
    Volume: 453, P: 1248-1252

  • Perineuronal nets may stabilize synaptic connections. Here, the authors show that removal of perineuronal nets disrupts both the temporal and spatial organization of grid cell firing.

    • Ane Charlotte Christensen
    • Kristian Kinden Lensjø
    • Torkel Hafting
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-17

  • Gamma oscillations in the brain are thought to 'bind' spatially distributed cells, a function that is probably important in perception, attentional selection and memory. However, it is unclear why the frequency of gamma oscillations varies substantially across space and time. Here, the study of the frequency of gamma oscillations in the CA1 area of the hippocampus suggests that variations in gamma frequency may be important for routeing information in the brain.

    • Laura Lee Colgin
    • Tobias Denninger
    • Edvard I. Moser
    Research
    Nature
    Volume: 462, P: 353-357

  • Previous evidence has suggested that hippocampal place fields in rodents arise from the summation of input from entorhinal grid cells. Here the authors show that perturbing excitatory backprojections from the hippocampus to the entorhinal cortex causes a gradual firing rate–dependent loss of grid pattern and an emergence of head-directional tuning in grid cells of the medial entorhinal cortex.

    • Tora Bonnevie
    • Benjamin Dunn
    • May-Britt Moser
    Research
    Nature Neuroscience
    Volume: 16, P: 309-317

  • The authors recorded neural activity in grid cells while rats ran through a hairpin maze. Their results demonstrate that spatial environments are represented in the entorhinal cortex and hippocampus as a mosaic of discrete submaps corresponding to the geometric structure of the space.

    • Dori Derdikman
    • Jonathan R Whitlock
    • Edvard I Moser
    Research
    Nature Neuroscience
    Volume: 12, P: 1325-1332