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Authored by: jesse on Tuesday, January 01 2013 @ 07:07 AM EST |
Not that much of a debate.
Whether a neuron fires or not is up to a threshold... that dynamically changes.
Whether that signal from a neuron is used is also up to a threshold... that also
dynamically changes. All through the process is analog signals, multiple
thresholds everywhere.
A digital signal is governed by thresholds... but they are static levels. And if
the level isn't reached, then it doesn't count... and in a digital based circuit
- it fails if the signal is present, and fails randomly when the thresholds are
not static (or perhaps just underpowered... or over clocked but then, that is
also a failure).
And the first experimental neuron circuits were not digital - they were built
using analog - and worked fairly well, accurately reproducing the activity of
the living neuron, only thousands of times faster.[ Reply to This | Parent | # ]
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