Professor Karim Nader explains that short-term memories are more sensitive to disruption than long-term memories.
So one of the defining properties of memories is that they exist in different qualitative states over time. So new memories will be acquired and exist in a dynamic state called short-term memory, and that is sensitive to disruption. During short-term memory, you can manipulate memories, you can make them stronger, you can make them weaker. Over time, a memory will stabilize into long-term memory and during that state the memory seems to be resistant to disruption. The same qualitative states are seen when you reactivate a consolidated memory and induce reconsolidation. Initially the memory exists in the dynamic state during which you can strengthen the memory or you can weaken the memory and over time the memory will be restabilized.
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Professor Karim Nader explains that long-term memories are traditionally thought of as being fixed in the brain.
Professor Karim Nader discusses a theory known as reconsolidation, which posits that when a memory is re-activated, it is subsequently re-stored.
Professor Karim Nader explains that consolidation is a theory of memory that attributes memory formation to changes in synaptic strength and efficiency.
New research showing how memories take shape may lead to better treatments for unwanted memories as well.
Doctor Josh Dubnau explains that memories seem to be formed in different stages that evolve over time. These include acquisition, short-term storage, and consolidation.
Professor Karim Nader explains that different brain regions are responsible for different types of memory. The hippocampus mediates conscious memory.
Professor Karim Nader explains that the striatum is important to learning motor tasks, such as driving or bike-riding.
Professor Karim Nader discusses evidence that deep sleep can benefit learning motor skills such as riding a bike.
Professor Seth Grant explains that long-term memories are created when the synapse sends a signal to the nucleus to activate certain genes.
Professor Ron Davis explains that the gene CREB is important to memory. Blocking CREB expression, blocks short-term memory formation.