Head Direction Cells is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Head direction cells are neurons that fire when an animal faces a specific direction in space, regardless of the animal's location. These cells form an internal compass that provides the brain with information about heading direction, essential for navigation and spatial memory.
| Property | Value |
|---|---|
| Category | Spatial Navigation Cells |
| Location | Postsubiculum, dorsal presubiculum, retrosplenial cortex, lateral septum, thalamus (AD), medial entorhinal cortex |
| Cell Types | Glutamatergic pyramidal neurons |
| Primary Neurotransmitter | Glutamate |
| Key Markers | c-Fos, Arc, CaMKIIα |
Head direction cells were first discovered in 1983 by James Ranck and colleagues in the rat postsubiculum. These cells form a critical component of the brain's navigation system, working in concert with place cells and grid cells.
Head direction cells are found in multiple interconnected structures:
Inputs:
Outputs:
Head direction cells show early vulnerability:
Clinical manifestations:
The study of Head Direction Cells has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
[1] Taube JS, et al. Head-direction cells recorded from the postsubiculum in freely moving rats. J Neurosci. 1990;10(2):420-435.
[2] Stackman RW, et al. Head direction cell theory. Neuroscientist. 2002;8(3):224-234.
[3] Taube JS. The head direction signal: Origins and sensory-motor integration. Annu Rev Neurosci. 2007;30:181-207.
[4] Cullen KE, Taube JS. Our sense of direction: Progress, controversies and challenges. Nat Neurosci. 2017;20(11):1465-1473.
[5] Yoder RM, et al. Multiple neural systems for updating head direction cells. Neuroscience. 2019;405:87-102.
[6] Winter SS, et al. Head direction cells in the rat pre-subiculum. Hippocampus. 2015;25(6):654-668.
[7] Clark BJ, et al. Head direction and navigation in aging. Neurobiol Learn Mem. 2020;170:106855.
[8] Pezzulo G, et al. An internal navigation system based on head direction cells. Front Integr Neurosci. 2014;8:61.
[9] Sharp PE, et al. Comparison of the effects of lesions to the dorsal hippocampus and head direction cells. Hippocampus. 2001;11(2):121-131.
[10] Goodridge JP, et al.cue interactions in head direction cells. J Neurophysiol. 1998;80(1):100-112.