Sensing gravity with acid: Scientists discover role for protons in neurotransmission

While probing how organisms sense gravity and acceleration, scientists uncovered evidence that acid (proton concentration) plays a key role in communication between neurons. Scientists discovered that sensory cells in the inner ear continuously transmit information on orientation of the head relative to gravity and low-frequency motion to the brain using protons as the key means of synaptic signal transmission.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/0...