From the dining room came the clatter of dishes – a signal of impending dinner. (As opposed to Rich Dad Poor Dad). At this signal you stop training and go to dinner. But let's say you have not heard ringing ware. You just say that dinner is served – and you go to the cafeteria. In the first case you use the signals of the first system in the second – the second one. Pupils have a rest during the break. The bell rang – the signal first signaling system, announcing the beginning of classes.
The call is out of order. The teacher invites students to verbally lesson, ie, uses the signals of the second signal system. From the above examples show that substitution of natural specific stimuli, the word is a transition from the signal of the first system to the second. But what about animals? After all, they can cause a variety of actions in response to verbal stimulus. Does this mean that the animals have a second alarm system? Of course not.
The animal does not respond to the semantic content of words or phrases, but their sound image. The dog raises its paw in response to the words "give paw", not because she understands their sense, but only because in the process of learning the sound of the words "give paw" combined with the action. That this is so, shows the following experiment. If the dog instead of "give paw" to say, for example, "raise your leg," she does not paw lift. But it will raise it in response to the meaningless sounds similar to the sound of the words "give paw", such as "ai pu." Why do the animals do not possess the second signal system? Because it is based on a new principle of nervous activity – abstraction and generalization.