I agree with you.
---------- Post added at 01:46 PM ---------- Previous post was at 01:20 PM ----------
Originally Posted by random user
Given that a trout has about a two week memory and a sort of "compare to flash card" kind of memory, for me, means that being able to maintain proportionality of the fly by using the hook itself as the measuring tool is far more important than the hook or bead. For a long time I have looked at this as I am probably tying different sub-species of a particular nymph or tying them at different phases in their life cycle.
...or, a #16 PTN crammed in behind a bead on a standard shanked hook is a different bug than the same fly stretched out on the same hook without the bead.
I agree with you.
Fish do not learn in the sense that people learn.
I do believe that trout have what we would term a form of memory, although whether it works like human memory is another question. I'm not sure that fish even "memorize" in the way that people memorize and hardwire their memory to create a permanent record.
A fish cannot "learn" or "reason" like a human does. It may seem like learning but really it is what psychologists call operant conditioning.
BF Skinner demonstrated years ago that changing behavior does not require reasoning but positive or negative reinforcement. This is called operant conditioning.
B.F. Skinner | Operant Conditioning - Simply Psychology
We see it every day when we fly fish. How does a fish "learn" to avoid a dragging fly? How does a fish become selective to a hatch? It is not by reasoning it.
It is operant conditioning, in the first case by negative reinforcement (being caught or by not being rewarded with food), and in the second case by being rewarded by food.
So how does a fish "learn" to avoid a bead head fly? The same way it "learns" to avoid a dragging fly. If negative consequences occur often enough, operant conditioning occurs so the fish does not reason the tippet is attached to a fly, it associates the drag with a negative event. In the same way, fish can associate a bead with a negative consequence of being caught and "learn" to avoid bead head flies.
A second form of condition is
We see it when fish that are fed with food pellets become aroused when we throw pebbles instead of food.
These fish have been trained by this technique. Both types of conditioning require no reasoning. These fish have been trained by this classical conditioning.
BBC NEWS | Science & Environment | How do you train a fish?