1990 head direction cell j taube example of continuous

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Unformatted text preview: Muller et al. 1990) Head-Direction Cell ((J. Taube) Example of continuous attractors: Ring attractor Head-direction cells -  signal heading direction in world coordinate system. - anchored to familiar landmarks (rapid learning). - relies on self-motion (works in total darkness). - correlated tightly with hippocampal place cells. Space related cells - Head-direction cell: heading direction - Grid cell: periodic spatial location - Place cell: spatial location All three representations are in world coordinate system, and they depend on both familiar landmarks and path integration by self-motion. Place cells in hippocampus Place Field Follows Learned Visual Landmark Basic properties of place cells: •  Place cell firing is determined primarily by spatial location •  Cues for spatial location come from multiple sensory modalities and self-motion •  Rapid learning of landmarks within a few minutes Head-direction cells and place cells are tightly coupled Example of continuous attractors: Surface attractor Torus attractor network physical space neurons & connections Single neuron firing field (McNaughton et al. 2006) Grid cells in entorhinal cortex Cell 1 Cell 2 Cell 3 Another 3 cells: trajectories and spikes (superimposed) trajectories & firing average firing rate Anatomical Hierarchy of Macque Monkey Brain Hippocampus (Van Essen) Response of a single neuron in human hippocampal region “Jennifer Aniston” “Sydney Opera”...
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