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Mailing Lists Archives Analyzer

100%

Rzecki K. , Riegel M.

Studia Informatica : systems and information technology

2006

tom Vol. 1(7)

117--125

Article describes chance to explore data hidden in headers of e-mails taken from archive of mailing lists. Scientist part of the article presents a way of transforms information enclosed in Internet resources, explains idea of mailing lists archive and points out knowledge can be taken from. Technical part presents implemented and working system analyzing headers of e-mail messages stored in mailing lists archives. Some example results of this experiment are also given.

The neural correlates of specific executive dysfunctions in Parkinson’s disease

41%

Gawrys L. , Falkiewicz M. , Pilacinski A. , Riegel M. , Piatkowska-Janko E. , Bogorodzki P. , Wolak T. , Andrysiak R. , Krolicki L. , Kulinski R. , Koziorowski D. , Janik P. , Rymarczyk K. , Grabowska A. , Kaczmarek L. , Szatkowska I.

Acta Neurobiologiae Experimentalis

2014

tom 74

nr 4

Several functional neuroimaging studies in patients with Parkinson's disease (PD) have suggested that changes in the fronto-parietal-striatal networks are associated with deficits in executive functioning. However, executive functions (EF) are multifaceted and include three dissociable components: working memory, response inhibition, and task-switching. This study investigated which component of executive functioning is most strongly associated with fronto-parietal-striatal efficiency in PD. PD patients (with and without executive dysfunction), and age-matched healthy subjects, completed a battery of cognitive tests previously shown to discriminate among the three EF components. Principal component analysis conducted on the selected cognitive test variables yielded three expected EF components. The component scores were used in regression analysis to assess the relationship between the EF efficiency and blood oxygenation level-dependent (BOLD) signal related to performing the n-back, an experimental task that draws upon multiple components of executive functioning: working memory, response inhibition, and task-switching. We found distinct neural correlates of specific executive dysfunctions in patients with PD. However, all of them seem to be associated with fronto-parietal-striatal efficiency.