WebDec 3, 2024 · Park et al. show that medial entorhinal cortex head-direction cell discharge is internally organized but registers inconsistently and temporarily to external landmarks during navigation, indicating the navigation system operates unlike a GPS but like variably oriented etak systems without a global reference. WebHead-direction cells and the sense of direction While place cells provide an animal with a sense of location, the head-direction cells provide it with a sense of direction. A given head-direction cell fires only when the rat’s head is turned towards a particular horizontal direction (azimuth) in the environment
Head direction cells: properties and functional significance
WebJan 28, 2009 · The head direction (HD) cell signal is a representation of an animal's perceived directional heading with respect to its environment. This signal appears to … Head direction (HD) cells are neurons found in a number of brain regions that increase their firing rates above baseline levels only when the animal's head points in a specific direction. They have been reported in rats, monkeys, mice, chinchillas and bats, but are thought to be common to all … See more The HD network makes use of inertial and other movement-related inputs, and thus continues to operate even in the absence of light. These inertial properties are dependent on the vestibular system, especially the See more Head direction cells were discovered by James B. Ranck, Jr., in the rat dorsal presubiculum, a structure that lies near the hippocampus on … See more • Spatial view cells, primate hippocampal counterpart for visual field. See more One of the most interesting aspects of head direction cells is that their firing is not fully determined by sensory features of the environment. When an animal comes into a novel … See more The properties of the head direction system - particularly its persistence in the dark, and also the constant relationship of firing directions between cells regardless of environmental … See more • Blair, HT; Cho J; Sharp PE (1998). "Role of the lateral mammillary nucleus in the rat head direction circuit: a combined single unit recording and lesion study". Neuron. 21 (6): 1387–1397. See more shoe stores in fairview heights
Three-dimensional tuning of head direction cells in rats
WebAug 24, 2024 · Shuffled head direction polar plots (Figs. 2, 3, 5d, h, 6, and 7) were generated by first dividing the histogram of head directions when the cell fired by the histogram of head directions from the ... http://scholarpedia.org/article/Head_direction_cells WebAug 24, 2024 · Shuffled head direction polar plots (Figs. 2, 3, 5d, h, 6, and 7) were generated by first dividing the histogram of head directions when the cell fired by the … shoe stores in fairview mall