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Learning/Frith: most of what we learn as children, we learn without a teacher.
Learning/Cats/Thorndike/Frith: showed that cats do not learn by imitation. E.g. "problem cages".
Example: A cat tried to get out of the cage by scratching the bars and biting them. It was by accident that it came to pull the string. Later, it tried everything else first, but always came faster to the string.
Association: this is also associative learning. All animals learn this way.
Definition extinction/Frith: also associations can be forgotten.
Superstition/Animal/Learning/Skinner/Frith: e.g. "Skinner-Box": at regular intervals, which had nothing to do with the behavior of the dove, there was food.
"Superstitious learning": the dove later repeated the movements which it had carried out just before receiving the feed.
Future/Learning/Frith: One could say that we learn to "predict the future", but that is nothing we do consciously or deliberately.
Learning/Brain/Frith: how does the brain learn?
Neurotransmitter: a neurotransmitter is a chemical compound that diffuses through a gap and stimulates the behavior of the next neuron.
Self-stimulation: For example, a rat gets the opportunity to get neurotransmitters. It then finds it more attractive than food and sex.
Reward: It was found that dopamine cells did not act like "reward cells". After the training, they stopped responding at the corresponding time. Instead, they moved to a signal before the feed, a flash. But when the feed did not come they gradually reduced their activity.
Signal/Dopamine/Reward: here no reward is signaled, but that there is an error in the prediction of the reward. When the juice arrives, the dopamine cells are silent. In the absence of reward the activity of the dopamine cells decreases.
Learning/associative/N.B.: exactly this enables learning without a teacher. If our prediction is wrong, it is a sign that we need to do something to improve our prediction.
Learning/machines: there are algorithms that allow machines to learn in the same way.
Definition value/associative learning/Frith: E.g. the unconditional stimulus (in Pawlow) has an intrinsic value, a positive value for feed (reward), and a negative value for electric shock (penalty). The value works so that everything we get just before the reward becomes more valuable.
Associative Learning/Frith: associative learning explains how our brain acquires knowledge (unconsciously) for us.
Learning/Teaching/Child/Language/language learning/Language acquisition/Frith: A mother who speaks with her baby speaks with a higher voice and emphasizes the differences between the vowels more strongly. ("baby talk", "motherese")
Animal: when the same person talks to a pet, she also speaks in a higher voice, but without emphasizing the vowels. She does not expect to be imitated.
Wie unser Gehirn die Welt erschafft Heidelberg 2013