Search results for "rytmi"

Nanda-Hamner Curves Show Huge Latitudinal Variation but No Circadian Components in Drosophila Montana Photoperiodism

2021

Insect species with a wide distribution offer a great opportunity to trace latitudinal variation in the photoperiodic regulation of traits important in reproduction and stress tolerances. We measured this variation in the photoperiodic time-measuring system underlying reproductive diapause in Drosophila montana, using a Nanda-Hamner (NH) protocol. None of the study strains showed diel rhythmicity in female diapause proportions under a constant day length (12 h) and varying night lengths in photoperiods ranging from 16 to 84 h at 16°C. In the northernmost strains (above 55°N), nearly all females entered diapause under all photoperiods and about half of them even in continuous darkness, while…

Esiintymisjännitys kolmasluokkalaisten kehorytmiikkakokeilussa

1999

Embodied Meter Revisited : Entrainment, Musical Content, and Genre in Music-Induced Movement

2022

Previous research has shown that humans tend to embody musical meter at multiple beat levels during spontaneous dance. This work that been based on identifying typical periodic movement patterns, or eigenmovements, and has relied on time-domain analyses. The current study: 1) presents a novel method of using time-frequency analysis in conjunction with group-level tensor decomposition; 2) compares its results to time-domain analysis, and 3) investigates how the amplitude of eigenmovements depends on musical content and genre. Data comprised three-dimensional motion capture of 72 participants’ spontaneous dance movements to 16 stimuli including eight different genres. Each trial was subjected…

A psychoacoustic model of harmonic cadences

2009

Pienten lasten päivittäiset rytmit ja hoivan ketjut 24/7-taloudessa

2016

Tämän tutkimuksen tarkoituksena oli tutkia pienten lasten päivittäisiä rytmejä kodin, päiväaikaan tapahtuvan varhaiskasvatuksen ja päivähoidon sekä vuoro-hoidon konteksteissa. Työntekijöiden työajat ovat 24/7-talouden myötä erilais-tuneet ja epätyypilliset työajat, eli ilta-, yö- ja viikonlopputyöt ovat monien vanhempien arkea. Vanhempien epätyypilliset työajat tuovat tutkimusten mu-kaan perheiden arkeen monia ajallisia haasteita, mutta myös mahdollisuuksia. Tutkimuksen aineisto on osa kahta laajempaa tutkimusprojektia (Perheet 24/7 sekä Pienten lasten perhearki), ja se on kerätty kännykkäpäiväkirjalla tutkit-tavien lasten vanhemmilta sekä päivä- ja vuorohoidon työntekijöiltä kolmesti päivä…

The Test–Retest Repeatability of a Rhythm Coordination Test Procedure in 4- to 6-Year-Old Children : A Pilot Study

2020

Moving to music combines the ability of rhythm and coordination. In relation to the musical and motor development of children, sensorimotor synchronization requires the ability to perceive and perform a steady beat. The present pilot study aimed to investigate the test–retest repeatability of a rhythm coordination test procedure in order to pilot the procedure for children. Test–retest repeatability reflects the variation in measurements taken by the rhythm coordination test on the same participant under the same conditions. Ten children (mean age 5.5 years, standard deviation (SD) 0.6) participated in the tests. The test performance was evaluated in points from 0 to 8, separately at a slow…

The role of the circadian clock in adaptation in seasonally changing environment in Drosophila montana

2012

Neural Responses to Musical Rhythm in Chinese Children With Reading Difficulties

2020

The perception of the musical rhythm has been suggested as one of the predicting factors for reading abilities. Several studies have demonstrated that children with reading difficulties (RD) show reduced neural sensitivity in musical rhythm perception. Despite this prior evidence, the association between music and reading in Chinese is still controversial. In the present study, we sought to answer the question of whether the musical rhythm perception of Chinese children with RD is intact or not, providing further clues on how reading and music might be interlinked across languages. Oddball paradigm was adapted for testing the difference of musical rhythm perception, including predictable an…

Rhythmic exercises as tools for rehabilitation following cerebellar stroke: A case study integrating music therapy and physiotherapy techniques

2022

Introduction: This article explores the use of music and multisensory stimuli in the construction of compensatory neural networks for motoric functioning in a patient recovering from cerebellar strokes (CS). This study aimed to address the real-world clinical concern of patients having a passive role in therapy, by arousing the client’s interest and self-motivation in rehabilitation. Method: The article presents a case study of a CS survivor, using data derived from rehabilitation sessions combining music therapy techniques with physiotherapy techniques to improve the fluency and accuracy of his motor performance. Qualitative and quantitative data are used to identify, describe, and evaluat…

Musical Feature and Novelty Curve Characterizations as Predictors of Segmentation Accuracy

2017

Novelty detection is a well-established method for analyzing the structure of music based on acoustic descriptors. Work on novelty-based segmentation prediction has mainly concentrated on enhancement of features and similarity matrices, novelty kernel computation and peak detection. Less attention, however, has been paid to characteristics of musical features and novelty curves, and their contribution to segmentation accuracy. This is particularly important as it can help unearth acoustic cues prompting perceptual segmentation and find new determinants of segmentation model performance. This study focused on spectral, rhythmic and harmonic prediction of perceptual segmentation density, whic…