scholarly journals Early Development Of The Speech And Gesture System: The Relationship Between Rhythmic Arm Activity And Reduplicated Babble

Author(s):  
Chastine Lamoureux

The development of the speech-gesture system was examined by evaluating the relationship between rhythmic arm activity (RAA) and reduplicated babble (RB). Using a novel longitudinal observational design, infants were observed in-home weekly, for twelve weeks playing with a rattle (22 to 34 weeks old). Video and audio-recordings were submitted by caregivers via a secure file-sharing service. The design was an effective alternative for longitudinal data collection in infant studies. RAA and RB were positively correlated, and infants exhibited greater amounts of tightly synchronized vocal-manual coordination (VMC) over time. Infant threshold was not a significant predictor of RB or VMC, and babble onset did not significantly predict the frequency or the type of VMC. Trajectory analyses revealed synchronous change across RAA, RB, and VMC. Findings suggest the linkage between RB and RAA is not sequential; but is a simultaneous process representing a moment of re-organization to the maturing speech-gesture system.

2021 ◽  
Author(s):  
Chastine Lamoureux

The development of the speech-gesture system was examined by evaluating the relationship between rhythmic arm activity (RAA) and reduplicated babble (RB). Using a novel longitudinal observational design, infants were observed in-home weekly, for twelve weeks playing with a rattle (22 to 34 weeks old). Video and audio-recordings were submitted by caregivers via a secure file-sharing service. The design was an effective alternative for longitudinal data collection in infant studies. RAA and RB were positively correlated, and infants exhibited greater amounts of tightly synchronized vocal-manual coordination (VMC) over time. Infant threshold was not a significant predictor of RB or VMC, and babble onset did not significantly predict the frequency or the type of VMC. Trajectory analyses revealed synchronous change across RAA, RB, and VMC. Findings suggest the linkage between RB and RAA is not sequential; but is a simultaneous process representing a moment of re-organization to the maturing speech-gesture system.


2021 ◽  
pp. 016502542110424
Author(s):  
Antoinette D. A. Kroes ◽  
Lotte D. van der Pol ◽  
Marleen G. Groeneveld ◽  
Judi Mesman

Consumption of news media can influence attitudes toward specific groups, but the influence of news media on longitudinal data collection has not yet been researched. We present a method to index media attention on a specific topic, as well as a case study on a big child sexual abuse (CSA) story and its effect on parents’ attitudes toward male childcare professionals in a longitudinal study with fathers and mothers of 207 Dutch families. Questionnaire data on attitudes toward gender-differentiated parenting were collected in four annual waves between 2010 and 2014. NexisUni® Academic database was used to index articles on CSA to chart patterns of media attention before and during that time span. There was an immediate increase in media attention, the amount of articles on CSA doubled, as well as a prolonged increase in attention which culminated during the second wave of the study. In the first wave, 97 of the families participated before the CSA case became known, and 110 participated afterward. Parents who participated after the first news about the case came out reported a more negative attitude toward hiring a male babysitter than those who participated before it. This effect was stronger for mothers. The negative effect on attitude endured during the subsequent waves for all fathers and for those mothers who participated before the news broke. Findings indicate that big news stories influence attitudes that lasts over time and can therefore influence longitudinal data. Further analysis suggests that the influence of news stories is gendered, as mothers showed a recovery in their attitudes over time while fathers did not. We recommend further research on the effect of news on attitude and behavioral measures in longitudinal research.


2021 ◽  
pp. 016502542110316
Author(s):  
Charlie Rioux ◽  
Zachary L. Stickley ◽  
Todd D. Little

Following the onset of the novel coronavirus disease 2019 (COVID-19) pandemic, daily life significantly changed for the population. Accordingly, researchers interested in examining patterns of change over time may now face discontinuities around the pandemic. Researchers collecting in-person longitudinal data also had to cancel or delay data collection waves, further complicating analyses. Accordingly, the purpose of this article is to aid researchers aiming to examine latent growth models (LGM) in analyzing their data following COVID-19. An overview of basic LGM notions, LGMs with discontinuities, and solutions for studies that had to cancel or delay data collection waves are discussed and exemplified using simulated data. Syntax for R and Mplus is available to readers in online supplemental materials.


2006 ◽  
Vol 30 (1) ◽  
pp. 20-25 ◽  
Author(s):  
David A. Cole

Many outcome variables in developmental psychopathology research are highly stable over time. In conventional longitudinal data analytic approaches such as multiple regression, controlling for prior levels of the outcome variable often yields little (if any) reliable variance in the dependent variable for putative predictors to explain. Three strategies for coping with this problem are described. One involves focusing on developmental periods of transition, in which the outcome of interest may be less stable. A second is to give careful consideration to the amount of time allowed to elapse between waves of data collection. The third is to consider trait-state-occasion models that partition the outcome variable into two dimensions: one entirely stable and trait-like, the other less stable and subject to occasion-specific fluctuations.


2015 ◽  
Vol 30 (1) ◽  
pp. 81-96 ◽  
Author(s):  
Justin C. Medina

Distribution of firearm victimization is not equal within cities. Victimization can persistently concentrate in a small number of neighborhoods, while others experience very little violence. Theorists have pointed to one possible explanation as the ability of groups to control violence using social capital. Researchers have shown this association at the U.S. county, state, and national levels. Few studies, however, have examined the relationship between neighborhood social capital and violence over time. This study uses longitudinal data to ask whether neighborhood social capital both predicts and is influenced by firearm victimization over 3 years in Philadelphia. The results of several regression analyses suggest that trusting others and firearm victimization are inversely related over time. Implications for neighborhood policy planning and social capital as a theoretical framework are discussed.


2012 ◽  
Vol 16 (1) ◽  
pp. 252-267 ◽  
Author(s):  
Catharina E. M. van Beijsterveldt ◽  
Maria Groen-Blokhuis ◽  
Jouke Jan Hottenga ◽  
Sanja Franić ◽  
James J. Hudziak ◽  
...  

The Netherlands Twin Register (NTR) began in 1987 with data collection in twins and their families, including families with newborn twins and triplets. Twenty-five years later, the NTR has collected at least one survey for 70,784 children, born after 1985. For the majority of twins, longitudinal data collection has been done by age-specific surveys. Shortly after giving birth, mothers receive a first survey with items on pregnancy and birth. At age 2, a survey on growth and achievement of milestones is sent. At ages 3, 7, 9/10, and 12 parents and teachers receive a series of surveys that are targeted at the development of emotional and behavior problems. From age 14 years onward, adolescent twins and their siblings report on their behavior problems, health, and lifestyle. When the twins are 18 years and older, parents are also invited to take part in survey studies. In sub-groups of different ages, in-depth phenotyping was done for IQ, electroencephalography , MRI, growth, hormones, neuropsychological assessments, and cardiovascular measures. DNA and biological samples have also been collected and large numbers of twin pairs and parents have been genotyped for zygosity by either micro-satellites or sets of short nucleotide polymorphisms and repeat polymorphisms in candidate genes. Subject recruitment and data collection is still ongoing and the longitudinal database is growing. Data collection by record linkage in the Netherlands is beginning and we expect these combined longitudinal data to provide increased insights into the genetic etiology of development of mental and physical health in children and adolescents.


2020 ◽  
pp. 001316442093845 ◽  
Author(s):  
Jon Agley ◽  
David Tidd ◽  
Mikyoung Jun ◽  
Lori Eldridge ◽  
Yunyu Xiao ◽  
...  

Prospective longitudinal data collection is an important way for researchers and evaluators to assess change. In school-based settings, for low-risk and/or likely-beneficial interventions or surveys, data quality and ethical standards are both arguably stronger when using a waiver of parental consent—but doing so often requires the use of anonymous data collection methods. The standard solution to this problem has been the use of a self-generated identification code. However, such codes often incorporate personalized elements (e.g., birth month, middle initial) that, even when meeting the technical standard for anonymity, may raise concerns among both youth participants and their parents, potentially altering willingness to participate, response quality, or generating outrage. There may be value, therefore, in developing a self-generated identification code and matching approach that not only is technically anonymous but also appears anonymous to a research-naive individual. This article provides a proof of concept for a novel matching approach for school-based longitudinal data collection that potentially accomplishes this goal.


Contraception ◽  
2020 ◽  
Vol 101 (4) ◽  
pp. 244-248
Author(s):  
EmmaKate B. Friedlander ◽  
Reni Soon ◽  
Jennifer Salcedo ◽  
Mary Tschann ◽  
Tiana Fontanilla ◽  
...  

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