ELIZA

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583352 occurrences (No.14 in the rank) during 5 years in the PubMed. [no cache] 500 found

258) The DMN and social cognitive networks overlap significantly in humans.

--- ABSTRACT ---

PMID:24046078 DOI:10.1093/cercor/bht253

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

* The default mode network in chimpanzees (Pan troglodytes) is similar to that of humans.

- The human default mode network (DMN), comprising medial prefrontal cortex, precuneus, posterior cingulate cortex, lateral parietal cortex, and medial temporal cortex, is highly metabolically active at rest but deactivates during most focused cognitive tasks. The DMN and social cognitive networks overlap significantly in humans. We previously demonstrated that chimpanzees (Pan troglodytes) show highest resting metabolic brain activity in the cortical midline areas of the human DMN. Human DMN is defined by task-induced deactivations, not absolute resting metabolic levels; ergo, resting activity is insufficient to define a DMN in chimpanzees. Here, we assessed the chimpanzee DMN's deactivations relative to rest during cognitive tasks and the effect of social content on these areas' activity. Chimpanzees performed a match-to-sample task with conspecific behavioral stimuli of varying sociality. Using [(18)F]-FDG PET, brain activity during these tasks was compared with activity during a nonsocial task and at rest. Cortical midline areas in chimpanzees deactivated in these tasks relative to rest, suggesting a chimpanzee DMN anatomically and functionally similar to humans. Furthermore, when chimpanzees make social discriminations, these same areas (particularly precuneus) are highly active relative to nonsocial tasks, suggesting that, as in humans, the chimpanzee DMN may play a role in social cognition.

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(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 ---