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Evoked cardiac response components in cognitive processing : differential effects of Amyotrophic Lateral Sclerosis

Evoked cardiac response components in cognitive ...

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dc.contributor.author Kaiser, Jan [SAP11003885] pl
dc.contributor.author Wronka, Eligiusz [SAP11017473] pl
dc.contributor.author Barry, Robert pl
dc.contributor.author Szczudlik, Andrzej pl
dc.date.accessioned 2015-02-19T17:53:49Z
dc.date.available 2015-02-19T17:53:49Z
dc.date.issued 1999 pl
dc.identifier.issn 0065-1400 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/3223
dc.language eng pl
dc.title Evoked cardiac response components in cognitive processing : differential effects of Amyotrophic Lateral Sclerosis pl
dc.type JournalArticle pl
dc.description.physical 329-334 pl
dc.description.additional Bibliogr. s. 333-334. Streszcz. ang. pl
dc.identifier.weblink http://ane.pl/pdf/5930.pdf pl
dc.abstract.en We investigated the mechanism of two evoked cardiac response components associated with different aspects of information processing. Innocuous stimuli presented in an irrelevant condition elicit a simple cardiac deceleration termed ECR1. The same stimuli presented in a relevant condition (such as results from requesting subjects to silently count the stimuli) elicit a complex biphasic response with a large secondary acceleration in heart rate. This difference is attributed to the additional effect of cognitive task performance, resulting in an addition response component, ECR2. This may be realised by subtraction of the two responses. We investigated the mechanisms involved by comparing cardiac response profiles from a neurologically-impaired group with those from a control group. amyotrophic lateral sclerosis (ALS) has been associated with a loss of synaptic connections in the frontal lobe. Twelve ALS clinically non-demented patients were age-matched with twelve neurological patients without pathological changes in the brain. Cardiac response profiles for ECR1 and ECR2 were examined as a function of group. ECR1 did not differ between the groups, but ECR2 was significantly impaired in the ALS patients. The results are discussed in terms of different brain regions associated with these two cardiac response components. ECR1 may be associated with automatic pre attentive stimulus registration involving, in the case of auditory stimuli, the auditory analyser and associated pathways, while ECR2 appears to be a correlate of controlled executive processing, involving the frontal cortex. pl
dc.subject.en amyotrophic lateral sclerosis pl
dc.subject.en evoked cardiac response pl
dc.subject.en cognitive processing pl
dc.description.volume 59 pl
dc.description.number 4 pl
dc.identifier.eissn 1689-0035 pl
dc.title.journal Acta Neurobiologiae Experimentalis pl
dc.language.container eng pl
dc.date.accession 2015-08-31 pl
dc.affiliation Wydział Filozoficzny : Instytut Psychologii pl
dc.subtype Article pl
dc.rights.original OTHER; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl

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