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273413 occurrences (No.92 in the rank) during 5 years in the PubMed. [no cache] 500 found

305) Age-related changes in the microstructural organization of the corpus callosum (CC) may explain declines in bimanual motor performance associated with normal aging.

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PMID:24158531 DOI:10.1007/s00429-013-0654-z

2015 Brain structure & function

* Bimanual motor deficits in older adults predicted by diffusion tensor imaging metrics of corpus callosum subregions.

- Age-related changes in the microstructural organization of the corpus callosum (CC) may explain declines in bimanual motor performance associated with normal aging. We used diffusion tensor imaging in young (n = 33) and older (n = 33) adults to investigate the microstructural organization of seven specific CC subregions (prefrontal, premotor, primary motor, primary sensory, parietal, temporal and occipital). A set of bimanual tasks was used to assess various aspects of bimanual motor functioning: the Purdue Pegboard test, simultaneous and alternating finger tapping, a choice reaction time test and a complex visuomotor tracking task. The older adults showed age-related deficits on all measures of bimanual motor performance. Correlation analyses within the older group showed that white matter fractional anisotropy of the CC occipital region was associated with bimanual fine manipulation skills (Purdue Pegboard test), whereas better performance on the other bimanual tasks was related to higher fractional anisotropy in the more anterior premotor, primary motor and primary sensory CC subregions. Such associations were less prominent in the younger group. Our findings suggest that structural alterations of subregional callosal fibers may account for bimanual motor declines in normal aging.

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(1)212 to	(11)4 and	(21)3 changes	(31)2 characteristics
(2)11 quality	(12)4 cognitions	(22)3 death	(32)2 genes,
(3)7 factors	(13)4 deaths	(23)3 disease	(33)2 head
(4)6 complications	(14)4 events	(24)3 functional	(34)2 hospital
(5)6 genes	(15)4 issues	(25)3 stress	(35)2 increases
(6)5 health	(16)4 macular	(26)3 symptoms	(36)2 parameters
(7)5 information	(17)4 osteonecrosis	(27)2 Anxiety	(37)2 proteins
(8)5 injuries	(18)4 with	(28)2 Cognitions	(38)2 psychosocial
(9)5 potentials	(19)3 activity	(29)2 barriers	(39)2 species
(10)4 activities	(20)3 cases	(30)2 brain

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--- WordNet output for related --- =>1.関係のある, 関連した, 2.同族の, 親類関係にある Overview of verb relate The verb relate has 5 senses (first 5 from tagged texts) 1. (15) associate, tie in, relate, link, colligate, link up, connect -- (make a logical or causal connection; "I cannot connect these two pieces of evidence in my mind"; "colligate these facts"; "I cannot relate these events at all") 2. (9) refer, pertain, relate, concern, come to, bear on, touch, touch on, have-to doe with -- (be relevant to; "There were lots of questions referring to her talk"; "My remark pertained to your earlier comments") 3. (7) relate -- (give an account of; "The witness related the events") 4. (4) relate, interrelate -- (be in a relationship with; "How are these two observations related?") 5. (2) relate -- (have or establish a relationship to; "She relates well to her peers") Overview of adj related The adj related has 2 senses (first 2 from tagged texts) 1. (20) related, related to -- (being connected either logically or causally or by shared characteristics ; "painting and the related arts"; "school-related activities"; "related to micelle formation is the...ability of detergent actives to congregate at oil-water interfaces") 2. (4) related -- (connected by kinship, common origin, or marriage) --- WordNet end ---