Search results for "OAIS"
showing 10 items of 18 documents
The effect of alertness and attention on the modulation of the beta rhythm to tactile stimulation
2021
Abstract Beta rhythm modulation has been used as a biomarker to reflect the functional state of the sensorimotor cortex in both healthy subjects and patients. Here, the effect of reduced alertness and active attention to the stimulus on beta rhythm modulation was investigated. Beta rhythm modulation to tactile stimulation of the index finger was recorded simultaneously with MEG and EEG in 23 healthy subjects (mean 23, range 19–35 years). The temporal spectral evolution method was used to obtain the peak amplitudes of beta suppression and rebound in three different conditions (neutral, snooze, and attention). Neither snooze nor attention to the stimulus affected significantly the strength of…
More comprehensive proprioceptive stimulation of the hand amplifies its cortical processing
2021
Corticokinematic coherence (CKC) quantifies the phase coupling between limb kinematics and cortical neurophysiological signals reflecting proprioceptive feedback to the primary sensorimotor (SM1) cortex. We studied whether the CKC strength or cortical source location differs between proprioceptive stimulation (i.e., actuator-evoked movements) of right-hand digits (index, middle, ring, and little). Twenty-one volunteers participated in magnetoencephalography measurements during which three conditions were tested: 1) simultaneous stimulation of all four fingers at the same frequency, 2) stimulation of each finger separately at the same frequency, and 3) simultaneous stimulation of the fingers…
Magnetoencephalography Responses to Unpredictable and Predictable Rare Somatosensory Stimuli in Healthy Adult Humans
2021
Mismatch brain responses to unpredicted rare stimuli are suggested to be a neural indicator of prediction error, but this has rarely been studied in the somatosensory modality. Here, we investigated how the brain responds to unpredictable and predictable rare events. Magnetoencephalography responses were measured in adults frequently presented with somatosensory stimuli (FRE) that were occasionally replaced by two consecutively presented rare stimuli [unpredictable rare stimulus (UR) and predictable rare stimulus (PR); p = 0.1 for each]. The FRE and PR were electrical stimulations administered to either the little finger or the forefinger in a counterbalanced manner between the two conditio…
Lasten tuntoaistin säätelypulmien ja niitä helpottavien keinojen kartoitus : kysely erityislastentarhanopettajille
2015
TIIVISTELMÄ Söderena, Maarit. 2015. Lasten tuntoaistin säätelypulmien ja niitä helpottavien keinojen kartoitus – kysely erityislastentarhanopettajille. Erityispedagogiikan pro gradu -tutkielma. Jyväskylän yliopisto. Kasvatustieteiden laitos. Tutkimuksessa kartoitettiin kuinka paljon Helsingin päivähoidon suomenkielisten erityisryhmien ja integroitujen erityisryhmien (N = 47) lapsilla oli tuntoaistin säätelypulmia kevätkaudella 2014. Tutkimuksessa selvitettiin erityislastentarhanopettajien käsityksiä siitä miten tuntoaistin säätelypulmat näkyvät päiväkodin arjessa ja millaisia keinoja on käytössä niiden helpottamiseksi. Lisäksi selvitettiin miten vastaajien käsitysten mukaan tuntoaistin säät…
Sähköinen arkistointi ja pitkäaikaissäilytys Suomessa valmisohjelmistolla
2012
Arkistointi on hävittämisen taidetta. Kun työkalut ovat hallussa, tietää lainalaisuudet ja käytettävät standardit, voi keskittyä tähän taitolajiin, mitä säilyttää ja mitä hävittää. Tässä työssäni tarkastelen sähköisen arkistoinnin ja pitkäaikaissäilytykset peruskäsitteet, merkittävimmät standardit ja ohjelmistot. Lisäksi avaan lainalaisuuksia ja koitan selvittää kuinka lainsäädäntö säätelee sähköistä arkistointia. Tutkin kuusi suomessa toteutettua julkishallinnon arkistointi ja/tai pitkäaikaissäilytysratkaisua. Julkishallinnon asiakirjanhallinta ja arkistointi on selkeää, sitä ohjaa lainsäädäntö ja Arkistolaitos. Muiden täytyy ymmärtää ensin syyt, joiden takia arkistoidaan tietoa, sekä kaua…
Modulation of H-reflex and V-wave responses during dynamic balance perturbations
2023
AbstractMotoneuron excitability is possible to measure using H-reflex and V-wave responses. However, it is not known how the motor control is organized, how the H-reflex and V-wave responses modulate and how repeatable these are during dynamic balance perturbations. To assess the repeatability, 16 participants (8 men, 8 women) went through two, identical measurement sessions with ~ 48 h intervals, where maximal isometric plantar flexion (IMVC) and dynamic balance perturbations in horizontal, anterior–posterior direction were performed. Soleus muscle (SOL) neural modulation during balance perturbations were measured at 40, 70, 100 and 130 ms after ankle movement by using both H-reflex and V-…
Reliability of transcranial magnetic stimulation and H-reflex measurement during balance perturbation tasks
2022
Following ankle movement, posterior balance perturbation evokes short- (SLR ∼30–50 ms), medium- (MLR ∼50–60 ms), and long-latency responses (LLR ∼70–90 ms) in soleus muscle before voluntary muscle contraction. Transcranial magnetic stimulation (TMS) and Hoffmann-reflex (H-reflex) measurements can provide insight into the contributions of corticospinal and spinal mechanisms to each response. Motor evoked potential (MEP) and H-reflex responses have shown good reliability in some dynamic muscle contraction tasks. However, it is still unclear how reliable these methods are in dynamic balance perturbation and corticospinal modulation during long amplitude balance perturbation tasks. 14 subjects …
La dérive pédagogique parallèle. Un fil éducatif invisible entre Porto et Paris à travers des récits personnels
2019
Partimos de la deriva como práctica artística contemporánea, con reconocidos antecedentes históricos. El objetivo principal es experimentar las potencialidades pedagógicas de la observación de entornos urbanos de forma colaborativa y mediada por las TIC a través de la deriva, como artistas/investigadores/docentes encargados de la formación del profesorado, para poder introducir este tipo de iniciativas en el entorno educativo. La A/R/Tografía como método de Investigación Basada en las Artes facilita usar la deriva simultáneamente como práctica artística, proceso investigador y experiencia de aprendizaje docente. Los resultados se exponen a través de narrativas personales que muestran reflex…
‘I just want someone to rub some life into them!’ : the lived experience of impaired sensation in the feet related to multiple sclerosis
2021
Background: Impaired sensation in the feet is a commonly reported symptom experienced by people with multiple sclerosis. Aim: To explore the lived experiences of people living with multiple sclerosis-related impaired sensation in their feet. Method: Five open, unstructured interviews were analysed using a descriptive phenomenological method developed by Amedeo Giorgi. Findings: The essential structure of the research phenomenon consists of six key constituents: sense of heightened awareness of body sensation; sense of changed relationship to the feet; sense of changed participation in daily life; sense of the self with multiple sclerosis; sense of the meaning of interaction with others; and…
Cláusulas de processamento de dados pessoais inseridas nos contratos de adesão: a falta de autonomia e liberdade na expressão da vontade e vias de pr…
2022
A contratação em massa hodierna revela-se inseparável das cláusulas de processamento de dados pessoais, as quais, inelutavelmente, integram os clausulados destes contratos de adesão padronizados, celebrados com recurso a cláusulas contratuais gerais. Assim, à posição, por natureza frágil, de aderente destes contratos, soma-se a de titular de dados pessoais objeto de processamento(s), cuja esfera jurídica pessoal, em particular, a sua vida privada e familiar, e por vezes até intimidade, pode conhecer intromissões com a aceitação das referidas cláusulas. Sendo o consentimento do titular um dos fundamentos de licitude para o tratamento de dados pessoais, nos termos do artigo 6.º/1/a) do Regula…