Search results for "toiste"

Feasibility and reproducibility of electroencephalography-based corticokinematic coherence

2020

Corticokinematic coherence (CKC) is the phase coupling between limb kinematics and cortical neurophysiological signals, reflecting cortical processing of proprioceptive afference, and it is reproducible when estimated with magnetoencephalography (MEG). However, feasibility and reproducibility of CKC based on electroencephalography (EEG) is still unclear and is the primary object of the present report. Thirteen healthy right-handed volunteers (seven females, 21.7 ± 4.3 yr) participated in two combined MEG/EEG sessions 12.6 ± 1.3 mo apart. Participants' dominant and nondominant index finger was continuously moved at 3 Hz for 4 min separately using a pneumatic-movement actuator. Coherence was …

Test-retest repeatability of questionnaire for pain symptoms for school children aged 10–15 years

2019

Abstract Background and aims There is a growing body of evidence, that pain is common at school age. Less is known about the repeatability of pain questionnaires for children. This study aimed to assess the test-retest repeatability of the Finnish version of the electronic pain questionnaire for school-aged children. Methods Primary (n = 79) and lower secondary (n = 127) schoolchildren aged 10–15 years from two schools from the Jyväskylä region of Finland, filled in an electronic questionnaire twice in an interval of 2 weeks. It captured the frequency of pain symptoms with a five-point Likert-scale questionnaire covering nine areas of the body for the last 3 months. The intraclass correlati…

In vivo 3D muscle architecture quantification based on 3D freehand ultrasound and magnetic resonance imaging

2023

Muscle architecture parameters, such as the fascicle length, pennation angle, and volume, are important muscle morphology characteristics. Accurate in vivo quantification of these parameters allows to detect changes due to pathologies, interventions, and rehabilitation trainings, which ultimately impact on muscles’ force-producing capacity. In this study, we compared three-dimensional (3D) muscle architecture parameters of the tibialis anterior and gastrocnemius medialis, which were quantified by 3D freehand ultrasound (3DfUS) and a magnetic resonance imaging (MRI) technique, diffusion tensor imaging (DTI), respectively. Sixteen able-bodied subjects were recruited where seven of them receiv…

The occurrence of Echinorhynchus salmonis Müller, 1784 in benthic amphipods in the Baltic Sea

2015

Abstract: The acanthocephalan Echinorhynchus salmonis Müller, 1784 is a common parasite of salmonid fish, but it has rarely been reported from an intermediate host. Samples of benthic amphipods, Monoporeia affinis (Lindström), were taken from multiple, deep sites (usually below 70 m) in the Gulf of Bothnia over the course of more than a decade and examined for acanthocephalans. Overall, only 0.44% of 23 296 amphipods were infected, all with just a single worm. This prevalence is consistent with several previous reports of acanthocephalans in deep-water, benthic amphipods, but it appears low compared to that often reported for acanthocephalan species infecting littoral amphipods. Parasite oc…

Lukemisen ja aritmetiikan sujuvuuden kehittyminen toisen koululuokan aikana

2014

Tutkimuksessa tarkasteltiin lukemisen ja aritmetiikan sujuvuutta ja niiden kehitystä toisen koululuokan aikana kolmena ajankohtana (lukukauden alussa, keskellä ja lopussa). Lukemisen sujuvuuden kehitys oli edistyvää niin sujuvilla kuin sujumattomillakin lukijoilla. Sen sijaan yhteen- ja vähennyslaskutaidon sujuvuudessa ei tapahtunut juurikaan kehitystä sujumattomilla laskijoilla, toisin kuin sujuvilla laskijoilla, joiden kehitys oli edistyvää lukukauden aikana. Tulokset tukevat oletusta aritmetiikan taitojen kehityksen Matteusvaikutuksesta, eli siitä, että lähtötasoltaan aritmetiikassa sujumattomien kehitys jää jälkeen lähtötasoltaan sujuvien laskijoiden kehityksestä. Lukutaidon taso ei sen…

Pään ja niskan kietoliikkeen jälkeistä asennon tunnistamista ja kiertoliikkeen tasaisuutta mittaavien mittareiden toistettavuus terveillä työikäisill…

2000

Reproducibility of evoked and induced MEG responses to proprioceptive stimulation of the ankle joint

2022

Cortical processing of proprioceptive afference can be investigated by examining phase locked evoked and induced responses in cortical signals to passive movement stimuli. Reproducibility of evoked and induced responses has been studied using electroencephalography (EEG), but proprioceptive domain has received little attention. It is unclear whether evoked and induced responses to proprioceptive stimulation arising from the lower limbs are reproducible using magnetoencephalography (MEG). Nineteen healthy volunteers (18 right-foot dominant, 36.1 ± 6.6 yr, 7 females) were measured in two MEG sessions separated by 9 ± 5 days in which their right ankle was rotated intermittently using a pneumat…

Häpeäherkkyys, arvosuuntautuneisuus ja mahdolliset minät

2001

Reproducibility of Brain Responses: High for Speech Perception, Low for Reading Difficulties

2019

Neuroscience findings have recently received critique on the lack of replications. To examine the reproducibility of brain indices of speech sound discrimination and their role in dyslexia, a specific reading difficulty, brain event-related potentials using EEG were measured using the same cross-linguistic passive oddball paradigm in about 200 dyslexics and 200 typically reading 8–12-year-old children from four countries with different native languages. Brain responses indexing speech and non-speech sound discrimination were extremely reproducible, supporting the validity and reliability of cognitive neuroscience methods. Significant differences between typical and dyslexic readers were fou…

Lepoaineenvaihdunnan määrittäminen epäsuoralla kalorimetrialla ja naisurheilijan oireyhtymä

2018

Johdanto. Epäsuora kalorimetria on yleinen tapa määrittää lepoaineenvaihdunta (LAVESK). Tarkoituksena on tutkia LAVESK:n toistettavuutta ja pätevyyttä kannettavalla hengityskaasuanalysaattorilla määritettynä. Tutkimuksen toisessa osassa tutkitaan antropometristen ja hormonaalisten muuttujien yhteyttä lepoaineenvaihduntaan naiskestävyysjuoksijoilla. Naisurheilijan oireyhtymässä alhainen energiansaatavuus, kuukautiskierron häiriöt sekä alentunut luuston massa yhdistyvät toisiinsa. Alhainen energiansaatavuus on yhteydessä adaptiiviseen termogeneesiin, jolloin havaitaan muutoksia myös lepoaineenvaihdunnassa. Menetelmät. LAVESK:n toistettavuuden osalta aineisto koostuu terveistä nuorista aikuisi…