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What is differential hebbian learning?

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What is differential hebbian learning?

(a) synaptic strength is proportional to correlation between firing of post & presynaptic neuron

(b) synaptic strength is proportional to correlation between firing of postsynaptic neuron only

(c) synaptic strength is proportional to correlation between firing of presynaptic neuron only

(d) synaptic strength is proportional to changes in correlation between firing of post & presynaptic neuron

The question was asked in an internship interview.

The origin of the question is Learning Laws in section Activation and Synaptic Dynamics of Neural Networks

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Correct answer is (d) synaptic strength is proportional to changes in correlation between firing of post & presynaptic neuron

Best explanation: Differential hebbian learning is proportional to changes in correlation between firing of post & presynaptic neuron.

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