Re: IS THIS A COGNITIVE QUESTION ?

Kali wrote:
In <44fc766d$0$20445$ed362ca5@xxxxxxxxxxxxxxxxxx>, Glen M. Sizemore gmsizemore2@xxxxxxxxx said: : : "Sharat Shastri" <sharatsastry@xxxxxxxxx> wrote in message : news:1157385850.217456.8870@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
: >A variety of viewpoints is what makes a discipline like CS all the more
: > critical. CS mayn't be pleased with individuals' perspectives; rather a
: > system or a theory under which an individual's ideas flourish and come
: > to be accepted.
: >
: > I'm right now reading a bit of visual perception in which it is defined
: > as the acquisition of knowledge about environmental objects and events
: > by extracting information from the light emitted or reflected on them.
: : Where did you read this? This is really, really funny. I'm serious. I would : really like to know where you came upon this.

Every college level sensation and perception text book will
> explain it in depth.

[...]

It's amazing how far "explanations" of tautologies can go, isn't it?

Glen was being not so gently ironic. The fact is that we don't "extract information from the light." If the notion of extracting information has any validity, it applies to the responses of the rods and cones: we "extract information" from the _differences_ bewteen these responses.

Think about it.
.

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