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Pupillometric parameters of alertness during unpredictable but not predictable smooth pursuit neck torsion test are altered in patients with neck pain disorders : a cross-sectional study
ID Majcen Rošker, Živa (Author), ID Močnik, Grega (Author), ID Kristjansson, Eythor (Author), ID Vodičar, Miha (Author), ID Rošker, Jernej (Author)

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Abstract
Despite commonly investigated predictable smooth-pursuit neck-torsion tasks (SPNT) in neck pain patients, unpredictable conditions have been seldom investigated but are indicative of preserved oculomotor functions during neck torsion. Although not previously studied, some speculations about compensatory cognitive mechanisms such as increased phasic alertness during unpredictable tasks were suggested. The aim of this study was to investigate eye movement accuracy and pupillometric responses during predictable and unpredictable SPNT test in neck pain patients and asymptomatic controls. Eye movements (gain and SPNT-difference) and pupillometry indicative of tonic (average and relative pupil diameter) and phasic (index of cognitive activity-ICA) alertness were measured in 28 idiopathic neck pain patients and 30 asymptomatic individuals using infrared video-oculography during predictable and unpredictable SPNT test. Gain in unpredictable SPNT test was lower as compared to predictable tasks and presented with similar levels in neutral and neck torsion positions, but not in the predictable SPNT test. ICA was lower during neutral position in all tasks in patients as compared to control group but increased during neck torsion positions in unpredictable tasks. Relative pupil diameters presented with no differences between the groups or neck positions, but the opposite was observed for average pupil diameter. Higher ICA indicates an increase in phasic alertness in neck pain patients despite no alterations in oculomotor control during SPNT test. This is the first study to indicate cognitive deficits in oculomotor task in neck pain patients. The latter could negatively affect other tasks where additional cognitive resources must be involved.

Language:English
Keywords:oculomotor functions, smooth pursuit eye movements, cervical disorders, cognitive disfunction, attention, pupillometry
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FŠ - Faculty of Sport
MF - Faculty of Medicine
Publication status:Published
Publication version:Version of Record
Year:2023
Number of pages:Str. 2069–2079
Numbering:Vol. 241, iss. 8
PID:20.500.12556/RUL-152186 This link opens in a new window
UDC:612
ISSN on article:0014-4819
DOI:10.1007/s00221-023-06648-z This link opens in a new window
COBISS.SI-ID:159512835 This link opens in a new window
Publication date in RUL:09.11.2023
Views:413
Downloads:37
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Record is a part of a journal

Title:Experimental brain research
Shortened title:Exp. brain res.
Publisher:Springer Nature
ISSN:0014-4819
COBISS.SI-ID:25440256 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:okulomotorična funkcija, sledilni pogled, cervikalna disfunkcija, kognitivna disfunkcija, pozornost, pupilometrija

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P5-0147
Name:Kineziologija monostrukturnih, polistrukturnih in konvencionalnih športov

Funder:ARRS - Slovenian Research Agency
Project number:P5-0443
Name:Kineziologija za učinkovitost in preventivo mišično-skeletnih poškodb v športu

Funder:ARRS - Slovenian Research Agency
Project number:J7-4642
Name:Temeljne raziskave za razvoj govornih virov in tehnologij za slovenščino

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