[sdiy] brainwaves to CV :O)

[Amos]

This same point is what I was alluding to when I said that results
would depend on how invasive the sensor technology is.  Fully-wetwired
interfaces could give you much higher-quality signals... At a price.

On 9/9/10, Scott Gravenhorst <music.maker at gte.net> wrote:
> "Paul Burns" <paul at fitvideo.co.uk> wrote:
>>
>>I would challenge Scott's statement in that signals leave the human brain
>>all the time to induce muscle stimulation, inducing limbic movement and
>>speech just for starters...
>>
>>We shall beg to differ.
>>
>>regards
>>
>>Paul
>
> Perhaps my expression "leave the brain" isn't accurate as is - sure signals
> leave the
> brain, but they do so conducted by electochemical nervous connections, not
> by
> through-the-air propogation or even bone-tissue-skin conduction which can be
> sensed by
> electronic equipment.
>
> My point is that the connections through nerves to activate muscles and
> receive sensory
> signals were rewarded by evolution and their functions advanced due to the
> rewards.  No
> such reward has been provided by nature regarding signals that can be sensed
> by elecronic
> connections attached to the exterior of the skull.
>
>
>
>>
>>-----Original Message-----
>>From: synth-diy-bounces at dropmix.xs4all.nl
>>[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Scott Gravenhorst
>>Sent: 09 September 2010 22:48
>>To: synth-diy at dropmix.xs4all.nl
>>Subject: Re: [sdiy] brainwaves to CV :O)
>>
>>The animal brain did not evolve in an evironment in which the animal
>>benefits from
>>signals that leave the brain for any reason.  Nor were there nor are there
>>any challenges
>>provided by nature which encourage or ellicit such benefits.  However,
>>animals did and do
>>benefit from the physical electrochemical connections to sensory organs and
>>muscles.
>>
>>Human beings which are also animals have evolved in the same or similar way
>>such that we
>>developed efficient connections from the brain to sensory organs and
>>muscles.  The use of
>>the sensory organs and muscles provided advantages for (at least) feeding
>>and breeding,
>>thus we prospered.
>>
>>The fact that some electrical signals can be detected by sensitive
>>electrical equipment
>>is, in my opinion, merely a side effect, a curiousity.  The human brain
>>certainly seems
>>capable of some amount of multitasking, such as walking while talking or
>>playing a
>>musical instrument in which the limbs (and other parts) are doing something
>>perhaps
>>related, but different.
>>
>>The connections for muscle control come from specific parts of the brain
>>that evolved to
>>handle those specific functions effectively.  It may be more like
>>multiprocessing than
>>multitasking.  Because of the lack of encouragement/reward from evolution
>>for external
>>signal use (what in nature responds to such signals?) and because evolution
>>did produce
>>advanced connections for limbs and sense, I would have to agree with Barry
>>that the idea
>>of a mentally conducted piano concert will never be as good as one done
>> with
>>hands and
>>other parts, mainly because we have real evolutionary advantages in using
>>our hands to
>>manipulate our physical world and we have no such advantages produced
>>because of
>>electrical activity that eminates from the skull.
>>
>>I think that the technology to even approach something like playing a fugue
>>from mental
>>electrical activity sensed by a machine are a very long way off.  Consider
>>also that the
>>brain is a three dimensional object and connecting to it's exterior surface
>>would at best
>>give only a blurred and distorted summing view of the multitude of
>>individual signals
>>generated within.  Separation of specific signals seems required for such a
>>task and at
>>present, the technology to do so doesn't exist.  (yes, I saw that "House"
>>episode and I
>>thought the same way Barry did: No - it doesn't work like that)
>>
>>I would not discourage experimentation in this regard, but I personally
>> hold
>>out little
>>hope for real success.
>>
>>-- ScottG
>>
>>________________________________________________________________________
>>-- Scott Gravenhorst
>>-- FPGA MIDI Synthesizer Information: home1.gte.net/res0658s/FPGA_synth/
>>-- FatMan: home1.gte.net/res0658s/fatman/
>>-- NonFatMan: home1.gte.net/res0658s/electronics/
>>-- When the going gets tough, the tough use the command line.
>>
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>
> -- ScottG
> ________________________________________________________________________
> -- Scott Gravenhorst
> -- FPGA MIDI Synthesizer Information: home1.gte.net/res0658s/FPGA_synth/
> -- FatMan: home1.gte.net/res0658s/fatman/
> -- NonFatMan: home1.gte.net/res0658s/electronics/
> -- When the going gets tough, the tough use the command line.
>
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