Questions: 13 1 point Which of the following describes homosynaptic LTP? Strengthening of synapses at neighboring inputs Strengthening of only the stimulated synapse Strengthening of multiple synapses at the same time Weakened synaptic responses after repeated stimulation

13 1 point Which of the following describes homosynaptic LTP? Strengthening of synapses at neighboring inputs Strengthening of only the stimulated synapse Strengthening of multiple synapses at the same time Weakened synaptic responses after repeated stimulation
Transcript text: 13 1 point Which of the following describes homosynaptic LTP? Strengthening of synapses at neighboring inputs Strengthening of only the stimulated synapse Strengthening of multiple synapses at the same time Weakened synaptic responses after repeated stimulation
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Solution

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The answer is the second one: Strengthening of only the stimulated synapse.

Explanation for each option:

  1. Strengthening of synapses at neighboring inputs: This describes heterosynaptic LTP, where the strengthening occurs at synapses that are not directly stimulated but are nearby.

  2. Strengthening of only the stimulated synapse: This correctly describes homosynaptic LTP, where the synaptic strengthening is specific to the synapse that received the stimulation.

  3. Strengthening of multiple synapses at the same time: This does not accurately describe homosynaptic LTP, as it implies a broader, non-specific strengthening which is not characteristic of homosynaptic LTP.

  4. Weakened synaptic responses after repeated stimulation: This describes long-term depression (LTD), not long-term potentiation (LTP).

Summary: Homosynaptic LTP refers to the strengthening of only the synapse that has been directly stimulated.

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