The main evidence that collateral sprouting is a mechanism of neural reorganization after brain damage is that reorganizational effects are sometimes
A) very fast.
B) too large to be mediated by release from inhibition of existing circuits.
C) associated with the basal forebrain.
D) triggered by damage.
E) topographic.

Question

Quizplus · Accepted Answer

Collateral sprouting involves the growth of new connections from intact neurons near the damaged area. These new connections can be large enough to compensate for the loss of the damaged neurons. This suggests that the effects of collateral sprouting are not simply due to the release from inhibition of existing circuits, but rather the growth of new connections.

Answer: D 
 Collateral sprouting is triggered by damage to the brain, as it is a mechanism of neural reorganization that occurs in response to injury or trauma.

Answer: E 
 Collateral sprouting can lead to topographic reorganization of neural connections, meaning that the new connections formed by intact neurons are organized in a way that mirrors the organization of the connections that were lost due to damage. This suggests that collateral sprouting is a specific and targeted mechanism of neural reorganization.

The Main Evidence That Collateral Sprouting Is a Mechanism of Neural