Memory

TOP mRNAs are involved in regulating __________ and __________, which are essential for learning and memory.

ribosome synthesis; protein translation

The BDNF-TrkB signaling pathway is a critical regulator of __________ synthesis during memory consolidation.

protein

The binding of BDNF to TrkB receptors activates __________, which subsequently removes the inhibition of 4E-BP.

mTOR

C/EBPB plays a critical role in long-term memory consolidation by regulating __________ expression.

BDNF protein

Local protein synthesis helps solve the 'specificity problem' in synaptic plasticity by providing __________ at the site of synaptic activity.

on-demand proteins

Weak stimuli primarily activate NMDA receptors leading to a modest influx of __________ into the spine, resulting in a short-lasting form of LTP.

Ca2+

The two main waves of protein synthesis involved in LTP are the first wave of __________ and the second wave of __________.

local translation; genomic signaling

Interfering with BDNF/TrkB signaling shortly after LTP induction prevents it from becoming __________.

long-lasting

The clustered plasticity hypothesis suggests that changes in synaptic strength are more effective when clustered on a __________ rather than being distributed.

dendritic branch

The process through which reactivated memories become susceptible to modification is known as __________.

reconsolidation

What is the role of 4E-BP in memory processes?

4E-BP inhibits the translation of specific mRNAs, and its removal allows for the initiation of protein synthesis crucial for memory consolidation.

How does protein synthesis influence long-term potentiation (LTP)?

Protein synthesis is essential for maintaining LTP, as it enables the production of proteins that reinforce synaptic changes.

What is the function of the mTOR pathway in synaptic plasticity?

The mTOR pathway plays a key role in regulating protein synthesis necessary for synaptic strengthening during LTP.

What effect does BDNF have on synaptic transmission?

BDNF enhances synaptic transmission by facilitating the growth and maintenance of synapses through various signaling pathways.

Describe the concept of 'synaptic tagging' during memory formation.

Synaptic tagging allows certain synapses to recognize and capture newly synthesized proteins necessary for strengthening during memory formation.

What is long-term potentiation (LTP)?

LTP is a long-lasting enhancement in signal transmission between two neurons resulting from repeated stimulation.

How does calcium (Ca2+) influx affect synaptic plasticity?

Ca2+ influx is a key signal that triggers various intracellular pathways important for synaptic strengthening.

What is the role of local translation in memory formation?

Local translation allows for rapid synthesis of proteins at synapses, facilitating immediate cellular responses related to learning.

Define the term 'cellular consolidation' in the context of memory.

Cellular consolidation is the process by which newly acquired information is stabilized at the synaptic level.

What is the significance of the BDNF protein in neuroplasticity?

BDNF promotes the survival of existing neurons and encourages the growth of new neurons and synapses, which is vital for learning.

Explain the term 'genomic signaling' in LTP processes.

Genomic signaling involves changes in gene expression that lead to the synthesis of proteins necessary for the maintenance of LTP.

What does 'synaptic specificity' refer to in memory storage?

Synaptic specificity is the ability of synapses to strengthen selectively based on the specific patterns of neural activity.

The process through which newly formed memories are stabilized and integrated is known as __________.

consolidation.

During long-term potentiation (LTP), enhanced __________ release contributes to stronger synaptic connections.

neurotransmitter.

In the context of memory, __________ are proteins that regulate synaptic modifications necessary for learning and memory.

immediate early genes (IEGs).

The physical changes, such as increased spine density at synapses, involved in memory formation are referred to as __________ changes.

structural.

The __________ is the brain region critically involved in the formation of new memories and the process of learning.

hippocampus.

In synaptic plasticity, the term __________ refers to the ability of synapses to strengthen or weaken over time in response to increases or decreases in their activity.

synaptic plasticity.

The phenomenon where synapses become stronger through repetitive stimulation is known as __________.

long-term potentiation.

The binding of __________ to its receptor is essential for initiating many signaling pathways involved in memory processes.

neurotrophic factors.

In the context of memory retrieval, __________ refers to the ability to access and recall information stored in the brain.

retrieval.

The __________ hypothesis suggests that memories are stored in a distributed manner across various brain regions rather than in a single location.

distributed memory.