Abstract:
:We examined the effect of long-term potentiation (LTP) on paired-pulse responses across varied stimulus intensities and interstimulus intervals (ISIs), at ascending synapses from the intermediate and ventral hippocampus to the medial prefrontal cortex in urethane-anesthetized rats. LTP significantly shifted the median effective stimulus towards lower intensities in the intermediate route, and increased at 25-ms ISI the paired-pulse response, which was inversely proportional to the stimulus intensity. In the ventral route, the paired-pulse response varied with ISI rather than intensity, and increased at 50-ms and 100-ms ISI after LTP. The intermediate synaptic plasticity significantly exhibited total amplifier dynamics with wide ranges of frequency at lower intensity and intensity at 100-ms ISI in contrast to the ventral one.
journal_name
Neuroreportjournal_title
Neuroreportauthors
Takita M,Izaki Y,Kuramochi M,Yokoi H,Ohtomi Mdoi
10.1097/WNR.0b013e3283344949subject
Has Abstractpub_date
2010-01-06 00:00:00pages
68-72issue
1eissn
0959-4965issn
1473-558Xjournal_volume
21pub_type
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