This review focuses on our effort in addressing the development and lesion-induced plasticity of the gravity sensing system.After severance of sensory input from one inner ear,there is a bilateral imbalance in response dynamics and spatial coding behavior between neuronal subpopulations on the two sides.These data provide the basis for deranged spatial coding and motor deficits accompanying unilateral labyrinthectomy.Recent studies have also confirmed that both glutamate receptors and neurotrophin receptors...