Spatial Mapping: Graded Precision of Entorhinal Head Direction Cells
نویسنده
چکیده
Representation of head direction in medial entorhinal cortex shows a gradient of precision, from high directional precision dorsally to low ventrally; this parallels the gradient of spatial scale in place and grid cells, and suggests that the brain constructs spatial maps of varying resolution, perhaps to serve different requirements.
منابع مشابه
Head direction is coded more strongly than movement direction in a population of entorhinal neurons.
The spatial firing pattern of entorhinal grid cells may be important for navigation. Many different computational models of grid cell firing use path integration based on movement direction and the associated movement speed to drive grid cells. However, the response of neurons to movement direction has rarely been tested, in contrast to multiple studies showing responses of neurons to head dire...
متن کاملCrystals of the brain
When we find our way in the environment, we need to integrate information about location, direction and distance into a coherent map-like representation. Our work over the last 10 years has suggested that the medial entorhinal cortex plays a central role in this process. A key component of the entorhinal network for spatial mapping is the grid cell, which we discovered, together with our collea...
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متن کاملConjunctive representation of position, direction, and velocity in entorhinal cortex.
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متن کاملThe Preferred Directions of Conjunctive Grid X Head Direction Cells in the Medial Entorhinal Cortex Are Periodically Organized.
The discovery of speed-modulated grid, head direction, and conjunctive grid x head direction cells in the medial entorhinal cortex has led to the hypothesis that path integration, the updating of one's spatial representation based on movement, may be carried out within this region. This hypothesis has been formalized by many computational models, including a class known as attractor network mod...
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ورودعنوان ژورنال:
- Current Biology
دوره 24 شماره
صفحات -
تاریخ انتشار 2014