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Which statement best describes synaptic plasticity?

Answer

The ability of synapses to strengthen or weaken over time

Explanation

### Why this is right Synaptic plasticity means that the strength of communication between connected neurons can change with experience. This makes it a neural basis for learning. ### The concept A synapse is the junction through which one neuron communicates with another. Strengthening or weakening a synapse can alter how readily later activity passes across that junction. Long-term potentiation (LTP) refers to lasting strengthening, while long-term depression (LTD) refers to lasting weakening. These are related but opposite forms of plasticity. ### The other options - **B. The conversion of pain signals into emotional responses**: Pain and emotion interact, but this is not the definition of synaptic plasticity. - **C. The storage of all memories in one brain region**: The material describes distinct neural circuits, not one universal storage site. - **D. The production of fluent speech**: Speech production is associated with Broca's area, not the definition of synaptic plasticity. ### Terms - **Synapse**: A junction where one neuron communicates with another. - **LTP**: Long-term potentiation, a lasting increase in synaptic strength. - **LTD**: Long-term depression, a lasting decrease in synaptic strength. ### Remember Plasticity describes change in synaptic strength, not a single brain region or behavior.

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