Abstract:
:Long-term potentiation (LTP) is the enhancement of postsynaptic responses for hours, days or weeks following the brief repetitive afferent stimulation of presynaptic afferents. It has been proposed many times over the last 30 years to be the basis of long-term memory. Several recent findings finally supported this hypothesis: a) memory formation of one-trial avoidance learning depends on a series of molecular steps in the CA1 region of the hippocampus almost identical to those of LTP in the same region; b)hippocampal LTP in this region accompanies memory formation of that task and of another similar task. However, CA1 LTP and the accompanying memory processes can be dissociated, and in addition plastic events in several other brain regions(amygdala, entorhinal cortex, parietal cortex) are also necessary for memory formation of the one-trial task, and perhaps of many others.
journal_name
An Acad Bras Ciencjournal_title
Anais da Academia Brasileira de Cienciasauthors
Izquierdo I,Cammarota M,Da Silva WC,Bevilaqua LR,Rossato JI,Bonini JS,Mello P,Benetti F,Costa JC,Medina JHdoi
10.1590/s0001-37652008000100007subject
Has Abstractpub_date
2008-03-01 00:00:00pages
115-27issue
1eissn
0001-3765issn
1678-2690pii
S0001-37652008000100007journal_volume
80pub_type
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journal_title:Anais da Academia Brasileira de Ciencias
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journal_title:Anais da Academia Brasileira de Ciencias
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