Mem­ory re­trieved

Down to Earth - - THE FORTNIGHT -

Re­searchers from the Uni­ver­sity of Cal­i­for­nia, Los An­ge­les, have con­tra­dicted a popular the­ory that longterm mem­o­ries get stored at synapses— the phys­i­cal con­tact be­tween neu­rons that help trans­mit in­for­ma­tion through elec­tri­cal and chem­i­cal sig­nals. It was be­lieved that once the synapses de­gen­er­ate, long-term mem­ory is lost for ever. The re­searchers, led by David Glanzman, found that mem­o­ries are re­trieved if synapses are re­gen­er­ated. This will make mem­ory loss a tem­po­rary prob­lem in de­gen­er­a­tive dis­eases like Alzhiemer's.

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