Synaptic pruning refers to the dying off of synapses which are:

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When evaluating synaptic pruning concepts, one should consider what the brain is removing during development and remodeling.
Option 1: 'injured'—Pruning is not about synapses being injured or damaged. Injury implies harm or pathology, whereas pruning is a normal, regulated process of refinement.
Option 2: 'overly connected'—While pruning reduces redundancy, it is not framed as eliminating only overly connected synapses based on that phrase. The contemporary view emphasizes synaptic strength and activity, not simply connectivity density.
Option 3: 'unused'—This aligns with the core idea of pruning: synapses that are rarely active or functionally weak are eliminated to streamline neural networks and improve efficiency.
Option 4: 'too small'—Size of a synapse is not the criterion for pruning; pruning targets functional relevance and activity patterns rather than a mechanism described as 'too small.'
Overall, the strongest fit is that pruning removes synapses that are unused or underutilized, which supports efficient circuit function and developmental refinement.

PSYC-312-02 Quiz Chapter 4

Synaptic pruning refers to the dying off of synapses which are:

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