e/Head direction cells

Information
has gloss	eng: Many mammals possess neurons called head direction (HD) cells, which are active only when the animals head points in a specific direction within an environment. These neurons fire at a steady rate (i.e. they do not show adaptation), but show a decrease in firing rate down to a low baseline rate as the animals head turns away from the preferred direction (usually returning to baseline when facing about 45° away from this direction).
lexicalization	eng: head direction cells
instance of	(noun) a cell that is specialized to conduct nerve impulses nerve cell, neuron