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267449 occurrences (No.100 in the rank) during 5 years in the PubMed. [no cache] 500 found

99) Using multivariate analytic techniques, we examined changes in functional and effective connectivity of hippocampal-neocortical interactions during these phases of AM retrieval.

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PMID:24275829 DOI:10.1093/cercor/bht324

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

* Functional and effective hippocampal-neocortical connectivity during construction and elaboration of autobiographical memory retrieval.

- Autobiographical memory (AM) provides the opportunity to study interactions among brain areas that support the search for a specific episodic memory (construction), and the later experience of mentally reliving it (elaboration). While the hippocampus supports both construction and elaboration, it is unclear how hippocampal-neocortical connectivity differs between these stages, and how this connectivity involves the anterior and posterior segments of the hippocampus, as these have been considered to support the retrieval of general concepts and recollection processes, respectively. We acquired fMRI data in 18 healthy participants during an AM retrieval task in which participants were asked to access a specific AM (construction) and then to recollect it by recovering as many episodic details as possible (elaboration). Using multivariate analytic techniques, we examined changes in functional and effective connectivity of hippocampal-neocortical interactions during these phases of AM retrieval. We found that the left anterior hippocampus interacted with frontal areas during construction and bilateral posterior hippocampi with visual perceptual areas during elaboration, indicating key roles for both hippocampi in coordinating transient neocortical networks at both AM stages. Our findings demonstrate the importance of direct interrogation of hippocampal-neocortical interactions to better illuminate the neural dynamics underlying complex cognitive tasks such as AM retrieval.

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(1)50 magnetic	(18)4 gastrointestinal	(35)3 integration	(52)2 connections
(2)38 connectivity	(19)4 outcome	(36)3 interactions	(53)2 differentiation
(3)29 and	(20)4 outcomes	(37)3 movement	(54)2 domains
(4)8 limitations	(21)4 relationships	(38)3 single	(55)2 endurance
(5)7 network	(22)4 unit	(39)3 status	(56)2 health
(6)7 recovery	(23)3 Assessment	(40)3 status,	(57)2 imaging
(7)7 role	(24)3 MRI	(41)3 studies	(58)2 impact
(8)6 changes	(25)3 Well-Being	(42)2 CD133	(59)2 integrity
(9)6 results	(26)3 activation	(43)2 HL	(60)2 losses
(10)5 alterations	(27)3 brain	(44)2 ability	(61)2 networks
(11)5 limitation	(28)3 consequences	(45)2 activity	(62)2 neuronal
(12)5 neuroimaging	(29)3 coupling	(46)2 analyses	(63)2 organization
(13)5 properties	(30)3 decline	(47)2 as	(64)2 parameters
(14)5 theory	(31)3 deficits	(48)2 assays	(65)2 roles
(15)4 capacity	(32)3 differences	(49)2 assessment	(66)2 significance
(16)4 connectivity,	(33)3 impairment	(50)2 characteristics	(67)2 specialization
(17)4 foods	(34)3 improvement	(51)2 cognitive

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--- WordNet output for functional --- =>機能の, 関数の, 機能する, 機能上の, 実用的な, 機能的な Overview of adj functional The adj functional has 6 senses (first 2 from tagged texts) 1. (3) functional -- (designed for or capable of a particular function or use; "a style of writing in which every word is functional"; "functional architecture") 2. (1) functional -- (involving or affecting function rather than physiology; "functional deafness") 3. functional -- (relating to or based on function especially as opposed to structure; "the problem now is not a constitutional one; it is a functional one"; "delegates elected on a functional rather than a geographical basis") 4. functional, usable, useable, operable, operational -- (fit or ready for use or service; "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order") 5. functional -- (designed for or adapted to a function or use; "functional education selects knowledge that is concrete and usable rather than abstract and theoretical"; "functional architecture") 6. running, operative, functional, working -- ((of e.g. a machine) performing or capable of performing; "in running (or working) order"; "a functional set of brakes") --- WordNet end ---