how do brain store everything, we hear or read or see?
what r the chemical factor that leads to store a lot of data in it , please explain in details
- 1 decade agoBest answer
here is the answer
Our brain is just like a computer.
Brain is made up of special kind of cells that condut electricity, called as neurons. These neurons together makes a network to create a brain.
As like computer our brain also has RAM where our short term memory get saved.
Our brain also has hard-drisk where our long term memory get saved.
How memory get saves in our brain:-
1) In case of sound.
When you hear somehting then the cochlea present in you ear structure amplifies the sound signals and convertes these signals into electrical impulses and send it to the neurons (Here they acts as an wire that connects the body sensors to the brain), these neurons transfers these electrical signals to the special kind of projections and depressions in the brain.
These Projection and Depression present in the brain plays the major role in saving the memory inside the brain.
These projection are called as GYRI and depression are called as SULCI.
The GYRI has the clusters of neruons inside it and hence they saves the electrical signals in themselves to save a memory in the form of electro statical charge, like a CAPACITORS does.
2) In case of watching.
When you see something then your eye lens focus the object on the RETINA (It is an photosnesitive layer behind the eye which is made up of Rods and Cones cells).
Each Rods and cones cells acts as an each pixel.
When the object image gets foucsed by the eye lens on the retina then these cells creates electrical impulses and sends these impulses through neurons to the brain and then the brain cells processes the signals and send them to the GYRI and SULCI where these signals get stored in the form of elctro-statical charge as like CAPACITORS does
For more detail on this topic please mail me to firstname.lastname@example.org with your feed back.
- 1 decade ago
In purest sense, Neurons in the the brain constitute memory and cognitive generation. Nerves in the brain are interconnected by axons of interneurons. For example when you think of something it may take you quite some time to think of it or perhaps tenths of a second. The reason why you can recall or think something so swiftly is because of the interconnections of the neurons. The nuerons send electrical impulses to the next neuron and is repetitive. Furthermore, if the neuron contains a myelin sheath, the thinking will be quick. If in this case, the impulse or message jumps from the node to quicker deliver the message. I could go on all day with this information, but just to simplify in the purest sense.Source(s): Brain/Memory
- Dominic HLv 41 decade ago
1. Long-term versus Short-term Memory:
Different physiological mechanisms appear to be involved in the formation of short-term and long-term memory. Both direct and indirect evidence suggests that short-term memory involves the temporary circulation of electrical impulses around complex loops of interconnected neurons. Studies indicate that short-term memories are eradicated by any event that either suppresses neural activity (such as electro convulsive therapy) Unlike short-term memories, long-term memories appear to involve some type of permanent structural or chemical change in the composition of the brain.
Studies have shown that the brief high-frequency stimulation of a neuron, for example, can produce long-lasting changes in the neuron's communications across synapses. The mechanism through which the connection between two neurons is re-enforced in this way, is called Long-term potentiation. (See http://en.wikipedia.org/wiki/Long-term_potentiatio... ) More recently imaging studies have shown that specific proteins are made locally at the synapse between the relevant neurons, when memories are formed, increasing the strength of the synaptic connection and reinforcing the memory concerned. (For more info see: http://www.eurekalert.org/pub_releases/2009-06/mu-... )
2. Brain structures involved in Memory storage:
The cerebral cortex appears to play an important role in memory in terms of the long-term storage of information. In addition, the hippocampus (See: http://en.wikipedia.org/wiki/Hippocampus ) and some related nearby cerebral structures appear to be important for explicit memory of experiences and other declarative information. The main function of the hippocampus appears to be in the integration and consolidation of separate sensory information. It is involved in the transfer of newly synthesized information into long-term structure supporting declarative knowledge. The amygdala also appears to play an important role in memory consolidation especially where emotional experience is involved. (For more info see: http://en.wikipedia.org/wiki/Amygdala#Memory_modul... )
Specific sensory properties of a given experience appear to be organized across various areas of the cerebral cortex. For example, the visual, spatial, and olfactory, features of an experience may be stored discretely in each of the areas of the cortex responsible for processing of each type of sensation. Damage to the thalamus, for example, can result in a loss of the ability to form verbal memories without affecting the formation of visual memories.
3. Chemicals involved in Memory Storage:
Some neurotransmitters disrupt memory storage, while others enhance memory storage. Both serotonin and acetylcholine seem to enhance neural transmission associated with memory, as can Norepinephrine. High concentrations of acetylcholine are found in the hippocampus of normal people, while low concentrations are found in people with Alzheimer's disease. (a degenerative disease that leads to memory loss) Alzheimer's patients show severe loss of the brain tissue that secretes acetylcholine. Some of the naturally occurring hormones stimulate increased availability of glucose in the brain, which enhances memory function.
1. Cognitive Psychology 5/e, R.J Sternberg, 2009.
2. E. Loftus, et al. "Memory", in AccessScience@McGraw-Hill, http://www.accessscience.com | DOI: 10.1036/1097-8542.414300
- Anonymous1 decade ago
It doesn't store everything, LOL.
Information is stored as patterns of "strong" synapses. Your memories and ability to think are "wired."