scholarly journals Dog cognitive development: a longitudinal study across the first 2 years of life

2020 ◽  
Author(s):  
Emily E. Bray ◽  
Margaret E. Gruen ◽  
Gitanjali E. Gnanadesikan ◽  
Daniel J. Horschler ◽  
Kerinne M. Levy ◽  
...  
Keyword(s):  
Longitudinal Study ◽  
Cognitive Development

A longitudinal study of vocabulary size and composition in low risk preterm children

2017 ◽  
Vol 38 (1) ◽  
pp. 72-94 ◽  
Author(s):  
Miguel Pérez-Pereira ◽  
Raquel Cruz
Keyword(s):  
Longitudinal Study ◽  
Cognitive Development ◽  
Growth Curve ◽  
Maternal Education ◽  
Vocabulary Development ◽  
Low Risk ◽  
Regression Analyses ◽  
Expressive Vocabulary ◽  
Vocabulary Size ◽  
Preterm Children

The vocabulary size and composition of one group of full-term and three groups of low risk preterm children with different gestational ages (GA) were longitudinally compared at 10, 22 and 30 months of age. Expressive vocabulary development was assessed through the CDI. Cognitive development was also assessed at 22 months (Batelle Developmental Inventory), and data concerning biological and environmental characteristics of the children were also obtained. Growth curve analyses indicated that there were no significant differences in vocabulary size or percentage of word categories among GA groups. Regression analyses showed that word production and cognitive scores measured at 22 months were the main predictors of total vocabulary and word categories at 30 months. Gender, maternal education and GA did not contribute in a significant way to the variance of use of the vocabulary categories or vocabulary size. Therefore, GA does not seem to affect vocabulary development and composition when biomedical complications associated to prematurity are excluded.

Cognizance in cognitive development: A longitudinal study

2019 ◽  
Vol 52 ◽  
pp. 100805 ◽  
Author(s):  
Smaragda Kazi ◽  
Elena Kazali ◽  
Nikolaos Makris ◽  
George Spanoudis ◽  
Andreas Demetriou
Keyword(s):  
Longitudinal Study ◽  
Cognitive Development

Transitional Processes in Social Cognitive Development: A Longitudinal Study

1994 ◽  
Vol 17 (3) ◽  
pp. 447-467 ◽  
Author(s):  
Marvin W. Berkowitz ◽  
Monika Keller
Keyword(s):  
Longitudinal Study ◽  
Cognitive Development ◽  
Social Cognitive ◽  
Transition Model ◽  
Social Cognitive Development ◽  
Modal Reasoning ◽  
Prior Literature ◽  
Transitional Processes ◽  
Stage Change

Microprocesses of stage change were studied by applying Snyder and Feldman's consolidation/transition model to substages and subcontents of Selman's stages of friendship reasoning in a six-year longitudinal study of 97 9-to 15-year-old children. It was hypothesised that individuals exhibiting reasoning above their own modal stages would be more likely to experience a developmental advance in modal reasoning, even when examined at the level of substage and subcontent. This was confirmed; however, the amount of variance in above mode reasoning was not related to development. Finally, controversies in the prior literature were explained by methodological differences. It was concluded that the Piagetian processes underlying the Snyder and Feldman model were supported.

Mastery Motivation and Cognitive Development: A Longitudinal Study from Infancy to 34 Years of Age

1984 ◽  
Vol 7 (4) ◽  
pp. 441-461 ◽  
Author(s):  
Kay. D. Jennings ◽  
Leon J. Yarrow ◽  
Patricia P. Martin
Keyword(s):  
Longitudinal Study ◽  
Cognitive Development ◽  
Cognitive Functioning ◽  
Early Years ◽  
Intensive Study ◽  
Mastery Motivation ◽  
Verbal Abilities ◽  
Wide Range

Thirty-five children who had participated in an intensive study of mastery motivation at 1 year of age were reevaluated at 32 years. At each age, the children's level of mastery motivation and cognitive functioning were assessed with both global and differentiated measures. Several structured tasks were developed to assess mastery motivation. In addition to the assessments at 1 year and 32 years, Bayley scores from 6 months of age were available for nearly half the children. The findings differed for boys and girls. For boys, some continuity was found in mastery motivation between 1 and 32 years; for girls, no continuity in mastery motivation was found but early mastery motivation predicted later cognitive functioning. Early vocalization (at both 6 and 12 months) was significantly related to later verbal abilities for boys. These findings indicate that developmental continuities can be found in the early years of life but only when a wide range of behaviors in the cognitive-motivational domain is examined.

scholarly journals Detecting and harmonizing scanner differences in the ABCD study - annual release 1.0

2018 ◽  
Author(s):  
Dylan M. Nielson ◽  
Francisco Pereira ◽  
Charles Y. Zheng ◽  
Nino Migineishvili ◽  
John A. Lee ◽  
...  
Keyword(s):  
Longitudinal Study ◽  
Cognitive Development ◽  
Longitudinal Studies ◽  
Empirical Bayes ◽  
Sample Sizes ◽  
Balanced Sampling ◽  
Empirical Bayes Approach ◽  
The Individual ◽  
Over Time ◽  
And Task

In order to obtain the sample sizes needed for robustly reproducible effects, it is often necessary to acquire data at multiple sites using different MRI scanners. This poses a challenge for investigators to account for the variance due to scanner, as balanced sampling is often not an option. Similarly, longitudinal studies must deal with known and unknown changes to scanner hardware and software over time. In this manuscript, we have explored scanner-related differences in the dataset recently released by the Adolescent Brain Cognitive Development (ABCD) project, a multi-site, longitudinal study of children age 9-10. We demonstrate that scanner manufacturer, model, as well as the individual scanner itself, are detectable in the resting and task-based fMRI results of the ABCD dataset. We further demonstrate that these differences can be harmonized using an empirical Bayes approach known as ComBat. We argue that accounting for scanner variance, including even minor differences in scanner hardware or software, is crucial for any analysis.

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