Play and Developmental Outcomes in Infant Siblings of Children with Autism

We observed infant siblings of children with autism later diagnosed with ASD (ASD siblings; n = 17), infant siblings of children with autism with and without other delays (Other Delays and No Delays siblings; n = 12 and n = 19, respectively) and typically developing controls (TD controls; n = 19) during a free-play task at 18 months of age. Functional, symbolic, and repeated play actions were coded. ASD siblings showed fewer functional and more non-functional repeated play behaviors than TD controls. Other Delays and No Delays siblings showed more non-functional repeated play than TD controls. Group differences disappeared with the inclusion of verbal mental age. Play as an early indicator of autism and its relationship to the broader autism phenotype is discussed

Pretend play and parents\u27 view of social competence: the construct validity of the Child-Initiated Pretend Play Assessment.

Background and Aims: Play is the primary means through which children develop skills and socially interact with other children. The aim of this study was to investigate the relationship between pretend play and social competence in 4&ndash;5-year-old typically developing children, thereby adding further knowledge to the construct validity of the Child-Initiated Pretend Play Assessment (ChIPPA). Procedure: The pretend play ability of 35 preschool children aged 4&ndash;5 years was assessed using the ChIPPA. Parent/guardians of the children were interviewed regarding their child\u27s social competence using the Vineland Social&ndash;Emotional Early Childhood Scales (Vineland SEEC Scales). Main Findings: No significant correlations were found between the children\u27s play scores and their Vineland SEEC Scales scores. A significant and negative relationship was found between cooperation and sharing and elaborate play scores, suggesting that children who scored poorly on the play assessment were rated as cooperative by parents. Principal Conclusions: Parent report of social competence cannot be inferred from play scores. Reasons for the negative and significant finding are put forward and clinical implications of the findings are discussed. Additional investigations are necessary to further explore the construct validity of inferring social competence using the ChIPPA. <br /

Best practice for motor imagery: a systematic literature review on motor imagery training elements in five different disciplines

<p>Abstract</p> <p>Background</p> <p>The literature suggests a beneficial effect of motor imagery (MI) if combined with physical practice, but detailed descriptions of MI training session (MITS) elements and temporal parameters are lacking. The aim of this review was to identify the characteristics of a successful MITS and compare these for different disciplines, MI session types, task focus, age, gender and MI modification during intervention.</p> <p>Methods</p> <p>An extended systematic literature search using 24 databases was performed for five disciplines: Education, Medicine, Music, Psychology and Sports. References that described an MI intervention that focused on motor skills, performance or strength improvement were included. Information describing 17 MITS elements was extracted based on the PETTLEP (physical, environment, timing, task, learning, emotion, perspective) approach. Seven elements describing the MITS temporal parameters were calculated: study duration, intervention duration, MITS duration, total MITS count, MITS per week, MI trials per MITS and total MI training time.</p> <p>Results</p> <p>Both independent reviewers found 96% congruity, which was tested on a random sample of 20% of all references. After selection, 133 studies reporting 141 MI interventions were included. The locations of the MITS and position of the participants during MI were task-specific. Participants received acoustic detailed MI instructions, which were mostly standardised and live. During MI practice, participants kept their eyes closed. MI training was performed from an internal perspective with a kinaesthetic mode. Changes in MI content, duration and dosage were reported in 31 MI interventions. Familiarisation sessions before the start of the MI intervention were mentioned in 17 reports. MI interventions focused with decreasing relevance on motor-, cognitive- and strength-focused tasks. Average study intervention lasted 34 days, with participants practicing MI on average three times per week for 17 minutes, with 34 MI trials. Average total MI time was 178 minutes including 13 MITS. Reporting rate varied between 25.5% and 95.5%.</p> <p>Conclusions</p> <p>MITS elements of successful interventions were individual, supervised and non-directed sessions, added after physical practice. Successful design characteristics were dominant in the Psychology literature, in interventions focusing on motor and strength-related tasks, in interventions with participants aged 20 to 29 years old, and in MI interventions including participants of both genders. Systematic searching of the MI literature was constrained by the lack of a defined MeSH term.</p

Benchmark Soil Landscapes and Landscape Evolution on the Southern High Plains of Texas

1 Póster (Poster number 1031.- Fots.- Figs.).Soils on the Southern High Plains (SHP) of western Texas and eastern New Mexico, a large, high, nearly level plain with a gentle southeastward slope, are generally deep and well-drained with well-developed argillic, calcic, and/or petrocalcic horizons. Minor topographic relief across this plain is provided by numerous, small playa basins and associated deflation dunes, a small number of saline-lake basins, sand dune fields, and draws that extend across the SHP in a southeasterly direction. Understanding soil-landscape relationships, soil function, and spatial variability can improve soil mapping and interpretations across these subtle landscapes. Three benchmark soils in MLRA 77C, Southern High Plains, Southern Part – Amarillo (fine-loamy, mixed, superactive, thermic Aridic Paleustalf), Arvana (fine-loamy, mixed, superactive, thermic Petrocalcic Paleustalf), and Posey (fine-loamy, mixed, superactive, thermic Calcidic Paleustalf) – are mapped across similar landscapes, have different interpretations, and generally differ in soil morphology as related to calcium carbonate precipitation. Episodic sedimentation, followed by land-surface stability and soil formation, resulted in an aggradational landscape. Two soil-forming factors – topography and time – primarily influenced these polygenetic soils and their landscapes. Significant impacts of erosive forces associated with increases in coarse fragments, buried soils, and disconformities were observed.Peer reviewe