Explain Hebb\'s rule In your own words. Be sure that you explain what it means,

Question

Explain Hebb's rule In your own words. Be sure that you explain what it means, don't just state it. Feel free to use an illustrative example, although that is not necessary if you can explain the concept well without one. If you do use an example, make sure it really an example of e Hebb's rule Finally relate hebb's rule to the behavioral neuroscience perspective on learning and memory. You may want to contrast that perspective with a cognitive perspective, or you may want to discuss how neuroscientists theorize about and do research on learning and memory. (There is no one "right answer" to this last part of the question. The point is to reflect intelligently on the topic and discuss where your thinking takes you.)

Explanation / Answer

Hebb’s postulate:

“When an axon of cell A is near enough to excite a cell B and repeatedly or persistently takes part in fi ring it, some growth process or metabolic change takes place in one or both cells such that A’s efficiency, as one of the cells fi ring B, is increased. (Hebb,1949, p. 62)”

In general it is called “Cells that fire together, wire together”

Its best example is LTP in Schaffer collateral pathway in hippocampus (CA3 to CA1).

A weak signal from CA3 is unable to produce LTP in CA1 initially. Whereas after strong impulses from CA3, weak signal is also able to potentiate the CA1 neurons.

This happened because weak impulses do not create enough signaling which can traffic the receptors on postsynapse and make newer receptors. But once a strong signal activates the signaling cascade more receptor are available on the postsynaptic membrane which requires small amount of signal to further activation/potentiation.

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