Unique processing during a period of high excitation/inhibition balance in adult-born neurons.
Unique processing during a period of high excitation/inhibition balance in adult-born neurons.
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DOI:
10.1126/science.1214956
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发表时间:
2012-03-09
期刊:
影响因子:
--
通讯作者:
Schinder AF
中科院分区:
文献类型:
--
作者:
Marín-Burgin A;Mongiat LA;Pardi MB;Schinder AF
The adult dentate gyrus generates new granule cells (GCs) that develop over several weeks and integrate into the preexisting network. While adult hippocampal neurogenesis has been implicated in learning and memory, the specific role of new GCs remains unclear. We examined whether immature adult-born neurons contribute to information encoding. Combining calcium imaging and electrophysiology in acute slices we found that weak afferent activity recruits few mature GCs while activating a substantial proportion of the immature neurons. These different activation thresholds are dictated by an enhanced excitation/inhibition balance transiently expressed in immature GCs. Immature GCs exhibit low input specificity that switches with time towards a highly specific responsiveness. Therefore, activity patterns entering the dentate gyrus can undergo differential decoding by a heterogeneous population of GCs originated at different times.
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影响因子:
3.7
作者:
Mongiat LA;Espósito MS;Lombardi G;Schinder AF
通讯作者:
Schinder AF
影响因子:
5.3
作者:
Tashiro, Ayumu;Makino, Hiroshi;Gage, Fred H.
通讯作者:
Gage, Fred H.
影响因子:
16.2
作者:
Poo, Cindy;Isaacson, Jeffry S.
通讯作者:
Isaacson, Jeffry S.
DOI:
10.1523/jneurosci.2727-09.2009
发表时间:
2009-12-02
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Markwardt SJ;Wadiche JI;Overstreet-Wadiche LS
通讯作者:
Overstreet-Wadiche LS
影响因子:
3.5
作者:
Lacefield, Clay O.;Itskov, Vladimir;Reardon, Thomas;Hen, Rene;Gordon, Joshua A.
通讯作者:
Gordon, Joshua A.