ELIZA

return kwic search for significantly out of >500 occurrences
583352 occurrences (No.14 in the rank) during 5 years in the PubMed. [no cache] 500 found

203) In sharp contrast, the synaptic input in the descending pathway from the OFC was significantly reduced until training completion.

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PMID:23960200 DOI:10.1093/cercor/bht215

2015 Cerebral cortex (New York, N.Y. : 1991)

* Differential modifications of synaptic weights during odor rule learning: dynamics of interaction between the piriform cortex with lower and higher brain areas.

- Learning of a complex olfactory discrimination (OD) task results in acquisition of rule learning after prolonged training. Previously, we demonstrated enhanced synaptic connectivity between the piriform cortex (PC) and its ascending and descending inputs from the olfactory bulb (OB) and orbitofrontal cortex (OFC) following OD rule learning. Here, using recordings of evoked field postsynaptic potentials in behaving animals, we examined the dynamics by which these synaptic pathways are modified during rule acquisition. We show profound differences in synaptic connectivity modulation between the 2 input sources. During rule acquisition, the ascending synaptic connectivity from the OB to the anterior and posterior PC is simultaneously enhanced. Furthermore, post-training stimulation of the OB enhanced learning rate dramatically. In sharp contrast, the synaptic input in the descending pathway from the OFC was significantly reduced until training completion. Once rule learning was established, the strength of synaptic connectivity in the 2 pathways resumed its pretraining values. We suggest that acquisition of olfactory rule learning requires a transient enhancement of ascending inputs to the PC, synchronized with a parallel decrease in the descending inputs. This combined short-lived modulation enables the PC network to reorganize in a manner that enables it to first acquire and then maintain the rule.

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[frequency of next (right) word to significantly]

(1)88 higher	(13)8 improved	(25)3 (P<0.05)	(39)2 impaired
(2)43 lower	(14)6 correlated	(27)3 affect	(40)2 increases
(3)39 increased	(15)6 elevated	(28)3 better	(41)2 induced
(4)35 reduced	(16)6 fewer	(29)3 increase	(42)2 larger
(5)32 associated	(17)6 less	(30)3 worse	(43)2 predicted
(6)17 decreased	(18)5 enhanced	(31)2 (P	(44)2 reduce
(7)13 in	(19)5 inhibited	(32)2 (p	(45)2 shorter
(8)13 more	(20)4 affected	(34)2 altered	(46)2 smaller
(9)10 greater	(21)4 attenuated	(35)2 by	(47)2 suppressed
(10)10 related	(22)4 between	(36)2 compared	(48)2 to
(11)9 null	(23)4 from	(37)2 decreased,
(12)9 different	(24)4 the	(38)2 differed

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--- WordNet output for significantly --- =>きわめて, 意味深く, 意味ありげに Overview of adv significantly The adv significantly has 3 senses (first 2 from tagged texts) 1. (6) significantly -- (in a statistically significant way; "the two groups differed significantly") 2. (3) significantly -- (in a significant manner; "our budget will be significantly affected by these new cuts") 3. importantly, significantly -- (in an important way or to an important degree; "more importantly, Weber held that the manifold meaning attached to the event by the social scientist could alter his definition of the concrete event itself") --- WordNet end ---