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Anonymous 69
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Everyone remembers the things that happen to them, which we call it memory. But where is the memory stored and how is it stored ? I mean in which part of the brain and in which state.
Anonymous 69 said:But where is the memory stored and how is it stored ? I mean in which part of the brain and in which state.
Brain areas involved in the neuroanatomy of memory such as the hippocampus, the amygdala, the striatum, or the mammillary bodies are thought to be involved in specific types of memory. For example, the hippocampus is believed to be involved in spatial learning and declarative learning, while the amygdala is thought to be involved in emotional memory.
Thank you but that doesn't clear my doutDrakkith said:It is believed that memories are stored as synaptic connections in specific areas of the brain. That means that incoming information causes a number of neurons inside the brain to strengthen/weaken their connections, and this specific pattern of stronger or weaker connections forms the basic memory 'pattern'. In addition, different areas of the brain have different roles in memory formation, recall, and processing. Wiki says the following:
Laroxe said:You asked where is memory stored, well generally most people would say in the brain, but we do know that simple organisms without a brain are capable of memory its not impossible that some types of memory may be present in other tissues.
Laroxe said:Some memory can occur at the site of sensation, this happens in the eyes
Laroxe said:It seems that memory of an event doesn't mean that memory is all stored together, bits can be scattered everywhere, recall is more of a reconstruction.
Laroxe said:Memories are also given an emotional valence which effects storage and recall, our current emotional state also influences recall and can be a powerful cue. Maybe being unclear is as good as it gets at the moment, but its still an impressive system, however it works. :)
Anonymous 69 said:Thank you but that doesn't clear my dout
Laroxe said:This is an issue that depends a great deal on definition of memory and I seem to remember it was based on the idea of cells being able to adopt patterns of behaviour. The gut for instance continues to function and can vary its performance without most of its links to the brain. I'm not sure it would be possible to claim it was totally disconnected but cutting major nerves was a common enough surgical procedure. I think the question comes up because of animals studies and with the complexities of intra cellular signalling and the control of gene expression it does seem theoretically plausible.
Laroxe said:Iconic memory is the sensory store for vision, First described by George Sperling (1963), there is also echoic memory.
The sensory stores are like brief delay systems associated with each sense. They preserve the pattern of stimulation before it enters attention. The sensory stores are sensory systems, but they are also memory systems because they preserve information after the external stimulus is gone.
The iconic image is complete. It contains all the sensory information available from the retina of the eye. However, it lasts only a fraction of a second and cannot be conjured up voluntarily at a later time. Probably the location of the iconic image is the circuitry of the retina itself.
Laroxe said:The whole model of how neurones work seems to be falling apart, the idea of a synapse activating and providing a stimulus that alters the action potential of the the other neuron is apparently way off. Individual dendrites can be allocated a different stimulus value and the information transmitted is not a simple all or nothing response, there can be quite a lot of variance in the signal. Its been suggested that we need to think of each neuron as a computer, sorry I havn't the source's immediately to hand but it gets more complex by the minute.
Are you referring to recent discoveries of new brain cells. If not, at least these discoveries do add to the complexity of the brain.Laroxe said:The whole model of how neurones work seems to be falling apart
Anonymous 69 said:Everyone remembers the things that happen to them, which we call it memory. But where is the memory stored and how is it stored ? I mean in which part of the brain and in which state.
I take a different view of this stuff.Laroxe said:The whole model of how neurones work seems to be falling apart, the idea of a synapse activating and providing a stimulus that alters the action potential of the the other neuron is apparently way off. Individual dendrites can be allocated a different stimulus value and the information transmitted is not a simple all or nothing response, there can be quite a lot of variance in the signal. Its been suggested that we need to think of each neuron as a computer, sorry I haven't the source's immediately to hand but it gets more complex by the minute.
The majority of memory is stored in the cerebral cortex, specifically in the medial temporal lobe and the prefrontal cortex. However, different types of memory may be stored in different areas of the brain.
No, memories are not physically stored in one specific location in the brain. Rather, they are distributed throughout the neural network and can be activated by different regions of the brain.
The exact process of how the brain stores and retrieves memories is still not fully understood. However, it is believed that memories are encoded through changes in neural connections and can be retrieved through cues or triggers.
It is possible for memories to be lost or forgotten, but they are not physically erased from the brain. Instead, they may become inaccessible due to damage or changes in the brain, or they may be overwritten by new memories.
There is no definite limit to how much memory the brain can store. The brain has the ability to create new neural connections and can adapt to store a vast amount of information. However, factors such as age, health, and genetics may affect the brain's ability to store and retrieve memories.