Synaptic summation is the technical term used in neurophysiology for those instances in which some neuron C is fired only by a combination of neurons A and B.
- Alex WardSo far, no scientist has been able to specifically turn any adult stem cell population into good populations of motor-neuron cells. Remember that ALS patients tend to die within four years. Opponents of therapeutic cloning need to remember that we do not have time to waste.
- Arif Mubarak