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return kwic search for demonstrated out of >500 occurrences
286534 occurrences (No.87 in the rank) during 5 years in the PubMed. [cache]

329) Schizophrenia is characterized by marked deficits in executive and psychomotor functions, as demonstrated for goal-directed actions in the antisaccade task.

--- ABSTRACT ---

PMID:24135773 DOI:10.1007/s00429-013-0652-1

2015 Brain structure & function

* Shifted neuronal balance during stimulus-response integration in schizophrenia: an fMRI study.

- Schizophrenia is characterized by marked deficits in executive and psychomotor functions, as demonstrated for goal-directed actions in the antisaccade task. Recent studies, however, suggest that this deficit represents only one manifestation of a general deficit in stimulus-response integration and volitional initiation of motor responses. We here used functional magnetic resonance imaging to investigate brain activation patterns during a manual stimulus-response compatibility task in 18 schizophrenic patients and 18 controls. We found that across groups incongruent vs. congruent responses recruited a bilateral network consisting of dorsal fronto-parietal circuits as well as bilateral anterior insula, dorsolateral prefrontal cortex (DLPFC) and the presupplementary motor area (preSMA). When testing for the main-effect across all conditions, patients showed significantly lower activation of the right DLPFC and, in turn, increased activation in a left hemispheric network including parietal and premotor areas as well as the preSMA. For incongruent responses patients showed significantly increased activation in a similar left hemispheric network, as well as additional activation in parietal and premotor regions in the right hemisphere. The present study reveals that hypoactivity in the right DLPFC in schizophrenic patients is accompanied by hyperactivity in several fronto-parietal regions associated with task execution. Impaired top-down control due to a dysfunctional DLPFC might thus be partly compensated by an up-regulation of task-relevant regions in schizophrenic patients.

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(1)158 that	(10)5 good	(19)3 excellent	(28)2 efficacy
(2)48 the	(11)5 increased	(20)3 more	(29)2 greater
(3)40 a	(12)5 significantly	(21)3 no	(30)2 how
(4)23 by	(13)4 as	(22)3 that,	(31)2 successful
(5)21 to	(14)4 better	(23)2 acceptable	(32)2 through
(6)13 in	(15)4 improved	(24)2 and	(33)2 using
(7)12 null	(16)4 its	(25)2 both
(8)11 an	(17)4 similar	(26)2 decreased
(9)8 for	(18)3 between	(27)2 differential

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--- WordNet output for demonstrated --- Overview of verb demonstrate The verb demonstrate has 4 senses (first 4 from tagged texts) 1. (24) show, demo, exhibit, present, demonstrate -- (give an exhibition of to an interested audience; "She shows her dogs frequently"; "We will demo the new software in Washington") 2. (22) prove, demonstrate, establish, show, shew -- (establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture") 3. (2) attest, certify, manifest, demonstrate, evidence -- (provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes; "His high fever attested to his illness"; "The buildings in Rome manifest a high level of architectural sophistication"; "This decision demonstrates his sense of fairness") 4. (1) demonstrate, march -- (march in protest; take part in a demonstration; "Thousands demonstrated against globalization during the meeting of the most powerful economic nations in Seattle") Overview of adj demonstrated The adj demonstrated has 1 sense (first 1 from tagged texts) 1. (1) demonstrated -- (having been demonstrated or verified beyond doubt) --- WordNet end ---