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Subject: Fruit Flies Have Free Will
From: slider
Date: 5/22/2007 4:42:09 PM
### - surely the finding of 'order' in chaos is a direct contradiction, and
as illusory (and temporary) as finding doggy faces and ducks (and/or
anything else) in the patterns of passing clouds?
"Jeremy H. Donovan" <JeremyHDonovan@gmail.com> wrote in message
news:1179811075.460516.292890@x18g2000prd.googlegroups.com...
I have long believed this would be discovered:
***
Humble fruit fly can make its own decisions
19 May 2007
>From New Scientist Print Edition
Bob Holmes
FRUIT flies have free will. Even when deprived of any sensory input to
react to, the zigs and zags of their flight reveal an intrinsic, non-
random - yet still unpredictable - decision-making capacity. If
evolution has furnished humans with a similar capacity, this could
help resolve one of the long-standing puzzles of philosophy.
Science assumes that effects have causes, and that if we understand
the causes well enough we can predict the effects. But if so, our
experience of being free to make choices is an illusion, since we are
in effect just sophisticated robots responding to stimuli. If our
behaviour is unpredictable, this is only because random events prevent
us from responding perfectly to our environment.
To test whether behaviour can be truly random, Björn Brembs, a
neurobiologist at the Free University of Berlin in Germany, put fruit
flies into a sensory deprivation chamber: a drum with a white interior
that offers the flies no visual cues to orient themselves. The flies
were glued to a torque meter that measured their zigs and zags as they
attempted to fly.
Brembs and his colleagues analysed the resulting flight records using
increasingly sophisticated models of random behaviour. Were the flies'
decisions random, like the result of a coin flip? No. Did they fit a
coin-flip model in which the probability of "heads" varied randomly?
Again, no. Nor could they be explained by a series of random inputs,
or a series of random inputs combined in non-random ways.
Instead, the researchers found, the flies' behaviour bears the
hallmark of chaos - a non-random process that is nevertheless
unpredictable, like the weather. No one knows just how this chaos
arises.
The chaotic control gives flies' flight a spontaneity that might be
evolutionarily advantageous when searching for food, say, or when a
female tries to avoid an unwanted male. And, unlike true randomness,
evolution can fine-tune the level of this spontaneity, Brembs says.
It's a rudimentary sort of free will, he adds. A more sophisticated
version of chaotic control could help human will break free of simple,
robotic cause and effect. "It makes a lot of sense to assume that what
we experience as free will is based on components that have cropped up
in evolution long before," says Brembs.
>From issue 2604 of New Scientist magazine, 19 May 2007, page 16
Subject: Fruit Flies Have Free Will
From: rbb
Date: 5/26/2007 1:21:32 AM
Nice one. Chaotic control.
But isn't free wil not just picking behavior according to probability?
How is it going? Still ok?
RBB
Subject: Fruit Flies Have Free Will
From: rbb
Date: 5/26/2007 11:00:17 PM
"SpiritK9" <Spiritk9@gmail.com> schreef in bericht
news:1180203273.356108.203550@w5g2000hsg.googlegroups.com...
> On May 25, 7:21 pm, "rbb" <r...@yahoo.com> wrote:
>> Nice one. Chaotic control.
>> But isn't free wil not just picking behavior according to probability?
>>
>> How is it going? Still ok?
>>
>> RBB
>
>
> That's not how I define free will.
>
Yes, Free Will always depends on definition.
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