@article{BuddPaulmannBarryetal.2013,
  author    = {Budd, Mary-Jane and Paulmann, Silke and Barry, Christopher and Clahsen, Harald},
  title     = {Brain potentials during language production in children and adults - an ERP study of the English past tense},
  series = {Brain \& language : a journal of the neurobiology of language},
  volume    = {127},
  journal   = {Brain \& language : a journal of the neurobiology of language},
  number    = {3},
  publisher = {Elsevier},
  address   = {San Diego},
  issn      = {0093-934X},
  doi       = {10.1016/j.bandl.2012.12.010},
  pages     = {345 -- 355},
  year      = {2013},
  abstract  = {The current study examines the neural correlates of 8-to-12-year-old children and adults producing inflected word forms, specifically regular vs. irregular past-tense forms in English, using a silent production paradigm. ERPs were time-locked to a visual cue for silent production of either a regular or irregular past-tense form or a 3rd person singular present tense form of a given verb (e.g., walked/sang vs. walks/sings). Subsequently, another visual stimulus cued participants for an overt vocalization of their response. ERP results for the adult group revealed a negativity 300-450 ms after the silent-production cue for regular compared to irregular past-tense forms. There was no difference in the present form condition. Children's brain potentials revealed developmental changes, with the older children demonstrating more adult-like ERP responses than the younger ones. We interpret the observed ERP responses as reflecting combinatorial processing involved in regular (but not irregular) past-tense formation.},
  language  = {en}
}
@article{GrossWarschburger2013,
  author    = {Gross, Martina and Warschburger, Petra},
  title     = {Evaluation of a cognitive-behavioral pain management program for children with chronic abdominal pain - a randomized controlled study},
  series = {International journal of behavioral medicine : the official journal of the International Society of Behavioral Medicine},
  volume    = {20},
  journal   = {International journal of behavioral medicine : the official journal of the International Society of Behavioral Medicine},
  number    = {3},
  publisher = {Springer},
  address   = {New York},
  issn      = {1070-5503},
  doi       = {10.1007/s12529-012-9228-3},
  pages     = {434 -- 443},
  year      = {2013},
  abstract  = {Background Chronic abdominal pain (CAP) in childhood is widely prevalent and has adverse effects on mental health and quality of life. Earlier research emphasized the positive effects of psychological intervention on pain symptoms. This study describes the results of a cognitive-behavioral pain management program for children with CAP. The newly developed cognitive-behavioral group program, "Stop the pain with Happy-Pingu," includes six sessions for the children and one meeting for the parents. Purpose We hypothesized that the training would significantly reduce pain symptoms (frequency, duration, intensity, and pain-related impairment) and increase health-related quality of life compared to wait-list controls, with improvement seen both at the end of treatment and at a 3-month follow-up. Method In all, 29 children were randomized into two groups: 15 in the intervention group (IG) and 14 as the wait-list controls (WLC). An intent-to-treat analysis was performed using two-factorial multivariate analyses of variance with repeated measures. Results Children in the IG experienced both a reduction in pain (primary outcome) and an improvement in health-related quality of life (secondary outcome) as compared to the WLC. The effect sizes ranged from medium to high. Conclusion Cognitive-behavioral methods seem to be appropriate for treating children with CAP.},
  language  = {en}
}
@article{MuellerMuellerBauretal.2013,
  author    = {M{\"u}ller, Juliane and M{\"u}ller, Steffen and Baur, Heiner and Mayer, Frank},
  title     = {Intra-individual gait speed variability in healthy children aged 1-15 years},
  series = {Gait \& posture},
  volume    = {38},
  journal   = {Gait \& posture},
  number    = {4},
  publisher = {Elsevier},
  address   = {Clare},
  issn      = {0966-6362},
  doi       = {10.1016/j.gaitpost.2013.02.011},
  pages     = {631 -- 636},
  year      = {2013},
  abstract  = {Introduction: Gait speed is one of the most commonly and frequently used parameters to evaluate gait development. It is characterized by high variability when comparing different steps in children. The objective of this study was to determine intra-individual gait speed variability in children. Methods: Gait speed measurements (6-10 trials across a 3 m walkway) were performed and analyzed in 8263 children, aged 1-15 years. The coefficient of variation (CV) served as a measure for intra-individual gait speed variability measured in 6.6 +/- 1.0 trials per child. Multiple linear regression analysis was conducted to evaluate the influence of age and body height on changes in variability. Additionally, a subgroup analysis for height within the group of 6-year-old children was applied. Results: A successive reduction in gait speed variability (CV) was observed for age groups (age: 1-15 years) and body height groups (height: 0.70-1.90 m). The CV in the oldest subjects was only one third of the CV (CV 6.25 +/- 3.52\%) in the youngest subjects (CV 16.58 +/- 10.01\%). Up to the age of 8 years (or 1.40 m height) there was a significant reduction in CV over time, compared to a leveling off for the older (taller) children. Discussion: The straightforward approach measuring gait speed variability in repeated trials might serve as a fundamental indicator for gait development in children. Walking velocity seems to increase to age 8. Enhanced gait speed consistency of repeated trials develops up to age 15.},
  language  = {en}
}