First image of memory formation 'captured' | HT Tech

First image of memory formation 'captured'

Scientists have captured for the first time the image of memory formation. An international team has in fact got the image of a mechanism, specifically protein translation, which underlies long-term memory formation, a finding which shows when a new memory is formed new proteins are made locally at the synapse -- the connection between nerve cells.

By:PTI
| Updated on: Jun 19 2009, 11:33 IST

Scientists have captured for the first time the image of memory formation.

An international team has in fact got the image of a mechanism, specifically protein translation, which underlies long-term memory formation, a finding which shows when a new memory is formed new proteins are made locally at the synapse -- the connection between nerve cells.

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And, according to the scientists, this increases the strength of the synaptic connection and reinforces the memory.

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'An important step in long-term memory formation is 'translation', or the production, of new proteins locally at the synapse strengthening synaptic connection in reinforcement of a memory, which until now has never been imaged.

'Using a translational reporter, a fluorescent protein that can be easily detected and tracked we directly visualised the increased local translation, or protein synthesis, during memory formation.

'Importantly, this translation was synapse-specific and it required activation of the post-synaptic cell, showing that this step required cooperation between the pre and post -synaptic compartments, the parts of the two neurons that meet at the synapse.

'Thus highly regulated local translation occurs at synapses during long-term plasticity and requires trans- synaptic signals,' lead scientist Dr Wayne Sossin of Montreal Neurological Institute and Hospital said.

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First Published Date: 19 Jun, 11:22 IST
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