What term describes the brain's ability to reorganize neural pathways in response to learning or after injury?

What term describes the brain's ability to reorganize neural pathways in response to learning or after injury?

• A. Neurogenesis
• B. Neuroplasticity (neural plasticity)
• C. Synaptogenesis
• D. Degeneration

Answer: (B)

The brain’s ability to reorganize neural pathways in response to learning or after injury is neuroplasticity, or neural plasticity. This concept captures how neural circuits can change their connections and functioning over time. When you learn something new, existing pathways can be strengthened or new connections can form, often through mechanisms like synaptic strengthening (long-term potentiation) and changes in dendritic spines. After injury, nearby or connected regions can adapt by rerouting signals, increasing connectivity, or taking over functions, which is the reorganization that neuroplasticity describes. Neurogenesis, another concept here, refers specifically to the birth of new neurons, which happens in certain brain areas but doesn’t by itself describe the broad reorganization of networks during learning or after injury. Synaptogenesis is about forming new synapses and is a mechanism within plasticity, not the full phenomenon. Degeneration means progressive loss of neurons or connections, which is the opposite of adaptive reorganization.

The brain’s ability to reorganize neural pathways in response to learning or after injury is neuroplasticity, or neural plasticity. This concept captures how neural circuits can change their connections and functioning over time. When you learn something new, existing pathways can be strengthened or new connections can form, often through mechanisms like synaptic strengthening (long-term potentiation) and changes in dendritic spines. After injury, nearby or connected regions can adapt by rerouting signals, increasing connectivity, or taking over functions, which is the reorganization that neuroplasticity describes.

Neurogenesis, another concept here, refers specifically to the birth of new neurons, which happens in certain brain areas but doesn’t by itself describe the broad reorganization of networks during learning or after injury. Synaptogenesis is about forming new synapses and is a mechanism within plasticity, not the full phenomenon. Degeneration means progressive loss of neurons or connections, which is the opposite of adaptive reorganization.