ELIZA

return kwic search for revealed out of >500 occurrences
324965 occurrences (No.62 in the rank) during 5 years in the PubMed. [cache]

388) fNIRS also detected significantly increased activation during a more challenging task in the left dorsolateral prefrontal cortex (DLPFC), and in addition, widespread activation of the medial prefrontal cortex (mPFC) was also revealed.

--- ABSTRACT ---

PMID:34010279 DOI:10.1371/journal.pone.0250043

2021 PloS one

* Increased cognitive workload evokes greater neurovascular coupling responses in healthy young adults.

- Understanding how the brain allocates resources to match the demands of active neurons under physiological conditions is critically important. Increased metabolic demands of active brain regions are matched with hemodynamic responses known as neurovascular coupling (NVC). Several methods that allow noninvasive assessment of brain activity in humans detect NVC and early detection of NVC impairment may serve as an early marker of cognitive impairment. Therefore, non-invasive NVC assessments may serve as a valuable tool to detect early signs of cognitive impairment and dementia. Working memory tasks are routinely employed in the evaluation of cognitive task-evoked NVC responses. However, recent attempts that utilized functional near-infrared spectroscopy (fNIRS) or transcranial Doppler sonography (TCD) while using a similar working memory paradigm did not provide convincing evidence for the correlation of the hemodynamic variables measured by these two methods. In the current study, we aimed to compare fNIRS and TCD in their performance of differentiating NVC responses evoked by different levels of working memory workload during the same working memory task used as cognitive stimulation. Fourteen healthy young individuals were recruited for this study and performed an n-back cognitive test during TCD and fNIRS monitoring. During TCD monitoring, the middle cerebral artery (MCA) flow was bilaterally increased during the task associated with greater cognitive effort. fNIRS also detected significantly increased activation during a more challenging task in the left dorsolateral prefrontal cortex (DLPFC), and in addition, widespread activation of the medial prefrontal cortex (mPFC) was also revealed. Robust changes in prefrontal cortex hemodynamics may explain the profound change in MCA blood flow during the same cognitive task. Overall, our data support our hypothesis that both TCD and fNIRS methods can discriminate NVC evoked by higher demand tasks compared to baseline or lower demand tasks.

--- ABSTRACT END ---

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[frequency of next (right) word to revealed]

(1)198 that	(9)4 increased	(17)2 associations	(25)2 in
(2)58 a	(10)4 several	(18)2 changes	(26)2 lower
(3)26 the	(11)4 significantly	(19)2 eight	(27)2 more
(4)14 an	(12)4 six	(20)2 elevated	(28)2 seven
(5)12 significant	(13)3 distinct	(21)2 enrichment	(29)2 that,
(6)9 by	(14)3 strong	(22)2 five
(7)7 no	(15)3 substantial	(23)2 four
(8)6 to	(16)3 three	(24)2 important

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--- WordNet output for revealed --- Overview of verb reveal The verb reveal has 3 senses (first 2 from tagged texts) 1. (34) uncover, bring out, unveil, reveal -- (make visible; "Summer brings out bright clothes"; "He brings out the best in her") 2. (17) unwrap, disclose, let on, bring out, reveal, discover, expose, divulge, break, give away, let out -- (make known to the public information that was previously known only to a few people or that was meant to be kept a secret; "The auction house would not disclose the price at which the van Gogh had sold"; "The actress won't reveal how old she is"; "bring out the truth"; "he broke the news to her"; "unwrap the evidence in the murder case") 3. reveal -- (disclose directly or through prophets; "God rarely reveal his plans for Mankind") --- WordNet end ---