Alterations in synaptic strength and receptor trafficking are associated with changes in which memory system?

Alterations in synaptic strength and receptor trafficking are associated with changes in which memory system?

• A. Declarative memory
• B. Procedural memory
• C. Working memory
• D. Short-term memory

Answer: (A)

Synaptic plasticity, including changes in synaptic strength and receptor trafficking, underpins the long-term formation of memories. In the hippocampus and related medial temporal structures, experiences produce long-term potentiation and receptor rearrangements that stabilize synaptic connections. This cellular mechanism is central to encoding and consolidating explicit memories—things you can consciously declare. That’s why declarative memory best fits the idea of these synaptic changes. Procedural memory, about skills and habits, relies more on the basal ganglia and cerebellum and often involves different learning processes. Working memory depends on the prefrontal networks to hold and manipulate information over short periods, with less emphasis on lasting synaptic remodeling. Short-term memory is about temporary storage and also hinges on short-lived maintenance rather than enduring synaptic changes.

Synaptic plasticity, including changes in synaptic strength and receptor trafficking, underpins the long-term formation of memories. In the hippocampus and related medial temporal structures, experiences produce long-term potentiation and receptor rearrangements that stabilize synaptic connections. This cellular mechanism is central to encoding and consolidating explicit memories—things you can consciously declare. That’s why declarative memory best fits the idea of these synaptic changes.

Procedural memory, about skills and habits, relies more on the basal ganglia and cerebellum and often involves different learning processes. Working memory depends on the prefrontal networks to hold and manipulate information over short periods, with less emphasis on lasting synaptic remodeling. Short-term memory is about temporary storage and also hinges on short-lived maintenance rather than enduring synaptic changes.