r norman wrote:
>What do you mean by "flexible". Do you mean they can be bent easily
>or do you mean they are plastic, capable of changing their
>connections? It would seem that neither concept of flexibility
>applies to the specific procedure described by the press release.
yes, plasticity would have been a better word,
>In fact, the "synapses" must really be simple electrical interactions,
>certainly not chemical synapses. In other words, the nanowires are
>just electrodes capable of recording from and stimulating the neuronal
>process which is attached.
will a change in chemistry alter the synaptic
connections in any way? or are the synapses and
axons permanently fixed? I pretty sure I saw a
film of the axons growing, moving to make connections
(maybe I'm wrong here) and then shrinking due to
atrophy (...maybe it was time-lapse) I hadn't thought
the connections between the neurons may form a
If the chemistry is altered in some way would this
have any effect on the action potential and alter
the electrical activity causing an overload? where
will the excess current go?
>And where are the artificial axons you ask about? Do you mean simply
>"wire", a structure capable of propagating an electrical potential
>along its length?
The published photograph looks something like this,
_ | _
_ | _ }-artificial synapses branching off
_ | _
_ | _
| <-axon natural
O <-neuron natural