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return kwic search for high out of >500 occurrences
636281 occurrences (No.11 in the rank) during 5 years in the PubMed. [no cache] 500 found

228) At age 28-30 months a statistically significant decrease in dominant high frequencies was observed in both TSC and healthy infants, possibly reflecting increased myelination and neuronal connection strengthening with age.

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PMID:23838730 DOI:10.1007/s10803-013-1887-7

2015 Journal of autism and developmental disorders

* Resting and task-modulated high-frequency brain rhythms measured by scalp encephalography in infants with tuberous sclerosis complex.

- The electrophysiological correlates of cognitive deficits in tuberous sclerosis complex (TSC) are not well understood, and modulations of neural dynamics by neuroanatomical abnormalities that characterize the disorder remain elusive. Neural oscillations (rhythms) are a fundamental aspect of brain function, and have dominant frequencies in a wide frequency range. The spatio-temporal dynamics of these frequencies in TSC are currently unknown. Using a novel signal decomposition approach this study investigated dominant cortical frequencies in 10 infants with TSC, in the age range 18-30 months, and 12 age-matched healthy controls. Distinct spectral characteristics were estimated in the two groups. High-frequency [in the high-gamma (>50 Hz) and ripple (>80 Hz) ranges], non-random EEG components were identified in both TSC and healthy infants at 18 months. Additional components in the lower gamma (30-50 Hz) ranges were also identified, with higher characteristic frequencies in TSC than in controls. Lower frequencies were statistically identical in both sub-groups. A significant shift in the high-frequency spectral content of the EEG was observed as a function of age, independently of task performance, possibly reflecting an overall maturation of developing neural circuits. This shift occurred earlier in healthy infants than in TSC, i.e., by age 20 months the highest dominant frequencies were in the high gamma range, whereas in TSC dominant frequencies above 100 Hz were still measurable. At age 28-30 months a statistically significant decrease in dominant high frequencies was observed in both TSC and healthy infants, possibly reflecting increased myelination and neuronal connection strengthening with age. Although based on small samples, and thus preliminary, the findings in this study suggest that dominant cortical rhythms, a fundamental aspect of neurodynamics, may be affected in TSC, possibly leading to impaired information processing in the brain.

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(1)18 risk	(19)4 gamma	(37)2 AT	(55)2 importance
(2)14 and	(20)4 group	(38)2 N/L	(56)2 index
(3)12 prevalence	(21)4 patient	(39)2 PbB	(57)2 inter-specific
(4)10 levels	(22)4 rate	(40)2 accuracy	(58)2 internal
(5)9 level	(23)4 shear	(41)2 age	(59)2 job
(6)9 school	(24)3 blood	(42)2 alcohol	(60)2 mass
(7)8 null	(25)3 concentration	(43)2 areas	(61)2 population
(8)7 proportion	(26)3 density	(44)2 birth	(62)2 positive
(9)6 in	(27)3 dose	(45)2 caries	(63)2 production
(10)6 lipoprotein	(28)3 efficiency	(46)2 chemotherapy	(64)2 profile
(11)6 liquid	(29)3 frequency	(47)2 correlation	(65)2 relative
(12)6 mortality	(30)3 genetic	(48)2 dental	(66)2 reliability
(13)5 as	(31)3 groups	(49)2 diet	(67)2 resistance
(14)5 autism	(32)3 incidence	(50)2 exposure	(68)2 risks'
(15)5 degree	(33)3 patients	(51)2 expression	(69)2 specificity,
(16)4 concentrations	(34)3 rates	(52)2 frequencies	(70)2 technologies
(17)4 doses	(35)3 ulnar	(53)2 heart	(71)2 tumours
(18)4 for	(36)2 ASD	(54)2 hydrostatic	(72)2 variability

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--- WordNet output for high --- =>1.高いところにある, 高い, 高さが〜の, 高貴な, 高く, 高額の, 興奮状態の, 2.高い所, 高水準 Overview of noun high The noun high has 7 senses (first 1 from tagged texts) 1. (5) high -- (a lofty level or position or degree; "summer temperatures reached an all-time high") 2. high -- (an air mass of higher than normal pressure; "the east coast benefits from a Bermuda high") 3. high -- (a state of sustained elation; "I'm on a permanent high these days") 4. high -- (a state of altered consciousness induced by alcohol or narcotics; "they took drugs to get a high on") 5. high, heights -- (a high place; "they stood on high and observed the countryside"; "he doesn't like heights") 6. senior high school, senior high, high, highschool, high school -- (a public secondary school usually including grades 9 through 12; "he goes to the neighborhood highschool") 7. high gear, high -- (a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed) Overview of adj high The adj high has 7 senses (first 5 from tagged texts) 1. (134) high -- (greater than normal in degree or intensity or amount; "a high temperature"; "a high price"; "the high point of his career"; "high risks"; "has high hopes"; "the river is high"; "he has a high opinion of himself") 2. (51) high -- ((literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like `knee-high'); "a high mountain"; "high ceilings"; "high buildings"; "a high forehead"; "a high incline"; "a foot high") 3. (10) eminent, high -- (standing above others in quality or position; "people in high places"; "the high priest"; "eminent members of the community") 4. (7) high, high-pitched -- (used of sounds and voices; high in pitch or frequency) 5. (2) high, in high spirits -- (happy and excited and energetic) 6. gamey, gamy, high -- ((used of the smell of meat) smelling spoiled or tainted) 7. high, mellow -- (slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana)) Overview of adv high The adv high has 4 senses (first 2 from tagged texts) 1. (9) high, high up -- (at a great altitude; "he climbed high on the ladder") 2. (2) high -- (in or to a high position, amount, or degree; "prices have gone up far too high") 3. high, richly, luxuriously -- (in a rich manner; "he lives high") 4. high -- (far up toward the source; "he lives high up the river") --- WordNet end ---