Question

In: Anatomy and Physiology

Default Processes of neuroplasticity:   Functional (synaptic)  and  structural plasticity: What is  long term potentiation, and what...

Default Processes of neuroplasticity:   Functional (synaptic)  and  structural plasticity:

What is  long term potentiation, and what is its function?

What is long term depression, and what is its function?

Explain the relationship between synaptic and structural neuroplasticity?

Solutions

Expert Solution

Long-term potentiation (LTP) in neuroscience is a persistent strengthening of synapses based on recent patterns of activity. long-lasting increase in signal transmission between two neurons because of this synaptic activity pattern.

The opposite of LTP is long-term depression, which produces a long-lasting decrease in synaptic strength.

Functions-

The role of LTP in disease is a smaller amount clear than its role in basic mechanisms of synaptic plasticity. However, alterations in LTP may contribute to a variety of neurological diseases, including depression, paralysis agitans, epilepsy, and neuropathic pain. Impaired LTP can also have a task in Alzheimer's disease and white plague.

Long-term depression (LTD) is an activity-dependent reduction in the efficacy of neuronal synapses lasting hours or longer following a long patterned stimulus. LTD occurs in many areas of the CNS with varying mechanisms depending upon developmental progress and brain region

Functions-

  • LTD has diverse roles in cognition, particularly in some sorts of learning and memory and in circumstances during which a versatile response is required.
  • LTD also seems to be involved in pathological states, including white plague, retardation and neurodegenerative diseases like Alzheimer's disease.

Structural Neuroplasticity, during which the strength of the connections between neurons (or synapses) changes. Functional Neuroplasticity, which describes the permanent changes in synapses because of learning and development.

Structural Neuroplasticity
Structural plasticity is usually understood because of the brain's ability to vary its neuronal connections. New neurons are constantly produced and integrated into the central nervous system throughout the lifetime supported this sort of Neuroplasticity. Researchers nowadays use multiple cross-sectional imaging methods (i.e. Resonance imaging (MRI), computed tomography (CT)) to review the structural alterations of the human brains. This sort of Neuroplasticity often studies the effect of varied internal or external stimuli on the brain’s anatomical reorganization. The changes of gray matter proportion or the synaptic strength within the brain are considered as samples of structural Neuroplasticity.

Functional Neuroplasticity
Functional plasticity (also referred to as synaptic plasticity) refers to the brain's ability to change and adapt to the communication between neurons. The changes often occur due to but not limited to the malfunction or damage of neurons; the functions from one a part of "> a part of the brain transfer to a different part of the brain supported the demand to supply recovery of behavioral or physiological processes. Long-term potentiation (LTP) and long-term depression (LTD) are considered as samples of synaptic plasticity that are related to memory. Studies have shown that different life experience like juggling, video-game playing, or musical training is related to functional plasticity.


Related Solutions

Long-term Potentiation (LTP) and Long-term Depression (LTD). Please discuss these two forms of synaptic plasticity that...
Long-term Potentiation (LTP) and Long-term Depression (LTD). Please discuss these two forms of synaptic plasticity that can be studied in research and represent molecular and cellular events underlying activity-dependent synaptic plasticity. What are LTP and LTD? What chain or cascade of events takes place that lead to LTP AND LTD? Specifically now address Early vs. Late LTP and effects of cAMP and PKA...
Neuroscience: Synaptic Physiology: Describe the cellular and molecular mechanisms underlying Long Term Potentiation and Long Term...
Neuroscience: Synaptic Physiology: Describe the cellular and molecular mechanisms underlying Long Term Potentiation and Long Term Depression. Focus on trafficking of new AMPA receptors and phosphorylation of existing AMPA receptors. Also describe the stimulation pattern and the necessary cellular events that lead to the observed changes.
What mechanisms are responsible for the maintenance and expression of Long Term Potentiation?
What mechanisms are responsible for the maintenance and expression of Long Term Potentiation?
MULTIPLE CHOICE 1. Glutamate plays a specific functional role in a. synaptic plasticity. b. anxiety reduction....
MULTIPLE CHOICE 1. Glutamate plays a specific functional role in a. synaptic plasticity. b. anxiety reduction. c. the action of alcohol. d. seizure suppression. 2. The most abundant inhibitory neurotransmitter in the brain is a. Acetylcholine b. Dopamine c. Glutamate d. GABA
Long term potentiation (LTP) is the strengthening of synapses in response to repetitive stimulation.
Long term potentiation (LTP) is the strengthening of synapses in response to repetitive stimulation. Describe how baseline EPSPs are measured in response to stimulation. Describe the stimulation that causes induction of LTP. Describe the cellular response at the postsynaptic side that strengthens the synapse in the early phase. What is necessary to maintain LTP over long periods? How do you discriminate between early and late phase LTP?  
26) A. At many synapses in the hippocampus, long‑term potentiation depends on the             activation of...
26) A. At many synapses in the hippocampus, long‑term potentiation depends on the             activation of NMDA receptors which have affinities for and respond to __________:              a. GABA. b. glutamate. c. dopamine. d. norepinephrine. e. nitric oxide. B. Based on imaging research of the brain, the region known as DLPFC (dorsolateral    prefrontal cortex) is associated with __________:             a. verbal tasks.             b. executive control.             c. spatial tasks.             d. all of the above.             e. none...
For long-term potentiation of synapses, if priming is not sufficient to dislodge Mg++ from NMDA receptor...
For long-term potentiation of synapses, if priming is not sufficient to dislodge Mg++ from NMDA receptor ion channels, what ions will not be able to pass through the channel? Also, if Mg++ is dislodged, what effects would NMDA activation have on the post-synaptic neuron?
First, consider the cellular basis of long-term potentiation (LTP). Where in the brain does this occur...
First, consider the cellular basis of long-term potentiation (LTP). Where in the brain does this occur and what happens? In your answer, include details of the neurotransmitters and receptors involved as well as what happens at the level of the receptor to enable LTP. Also, describe the changes that occur in both the presynaptic and post-synaptic cells as a result of LTP.
written Assignment Chapter 50, Introduction to the renal system. 1.Describe the structural and functional processes of...
written Assignment Chapter 50, Introduction to the renal system. 1.Describe the structural and functional processes of kidney function 2. Calcium, sodium, potassium, and chloride are controlled by the nephron, Describe this method of control 3. Discuss the mechanism of the renin-angiotensin aldosterone system and how this system is affected in the event of trauma or surgery resulting in blood loss Group assignment 1. Draw a diagram of the kidney and label each area 2. Design a flowchat explaining the countercurrent...
What is the structural and functional difference between polysaccharides and glycosaminoglycans
What is the structural and functional difference between polysaccharides and glycosaminoglycans
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT