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Strictly stated, Hebb's rule applies only to existing synapses, and not to the formation of new synapses. (This answer applies to biological neurons, not to ANNs). Synapse formation is a topic of active research. During development (and in fact continuously even during adulthood), many synapses are created and destroyed. It is not unreasonable to suspect ...


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Keegan's answer is good I gave it an up vote. I want to offer a valid alternative. Psychology may induce redundant pathways which trigger approximate simultaneous firing of neurons near or in completely different parts of the brain. Emotionally intense memories can trigger emotions, basically hallucinations of the event, smells and touch based ...


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There are an estimated 100 billion neurons within the human brain. In general a minor variation in the number of neurons should not effect individuals too much, however when there is a more significant loss, such as brain injury or in some forms of dementia cognitive abilities do decline. So in this sense yes the number of neurons does relate to ...



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