Why is memory thought to involve changes in particular synapses?
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Question

Why is memory thought to involve changes in particular synapses?
a. At some synapses, more neurotransmitters are released after learning takes place.
b. At some synapses, a different type of neurotransmitter is released after learning takes place.
c. When researchers stimulated certain neurons electrically, individuals replayed memories.
d. When researchers changed synapses in the brains of patients during surgery, the patients' memories changed.

Accepted Answer

Hi everyone. Let's look at the next question here. It says the ability of the brain to change and adapt as a result of experience is known as well. The brain does have an ability to modify and change and adapt itself throughout life in response to experience. And this ability is known as neural plasticity. Which is Choice be here. Um The greatest period of neural plasticity is obviously in infancy and childhood um allowing the child to learn and retain information very easily used to be thought that uh there's not much plasticity at all as you get older. So for instance stroke victims, it was thought that any nerves that were damaged in the stroke couldn't be regained but we now know that the brain can still actually sort of reroute pathways around damaged areas of the brain still does retain some plasticity to change the way those pathways and to then allow abilities to come back as a result of this restructuring inside the brain. So let's just look through our other answer choices to understand why they're not correct. Choice A is neuro sensitivity and that sort of you think about like sensory sensitivity, it's a greater sensitivity to stimuli. It would be like something that affects individuals that are more uh more reactive, more sensitive to outside stimuli, but not what we're describing here. Do I see his nerve excitability that's the property of a neuron to produce an action potential but that's not what we're looking for. So not choice C. And choice D is neuro conductivity. That would be the speed with which an electrical impulse moves through a nerve. But not the answer we're looking for here. So again, the ability of the brain to change and adapt as a result of experience is known as Choice B neural plasticity. Hope to see you in the next video.

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