Hebb's postulate describes learning how?

• A. When cell A repeatedly excites cell B, metabolic or structural changes occur that increase the efficiency of cell A in firing cell B.
• B. Neurons always fire independently.
• C. Cells B cause A to fire.
• D. Learning occurs solely by repetition without structural changes.

Answer: (C)

Hebb's rule is about how learning happens through repeated, sequential activation of connected neurons. When one neuron reliably contributes to causing another neuron to fire, the connection from the first neuron to the second becomes stronger. This synaptic strengthening makes it easier for that first neuron to drive the second in the future, so signals travel more efficiently along that pathway with repeated use. It’s the driving neuron that changes the connection to the neuron it excites, not the other way around, and not just by sheer repetition alone but by activity that leads to lasting changes in synaptic strength. This is the idea behind “cells that fire together wire together.”