Considering Developmental Peer Review

This editorial is a collaborative discussion of College & Research Libraries’ open peer review experiment, representing the unique perspectives and voices of those playing roles

Reducing variability in along-tract analysis with diffusion profile realignment

Diffusion weighted MRI (dMRI) provides a non invasive virtual reconstruction of the brain's white matter structures through tractography. Analyzing dMRI measures along the trajectory of white matter bundles can provide a more specific investigation than considering a region of interest or tract-averaged measurements. However, performing group analyses with this along-tract strategy requires correspondence between points of tract pathways across subjects. This is usually achieved by creating a new common space where the representative streamlines from every subject are resampled to the same number of points. If the underlying anatomy of some subjects was altered due to, e.g. disease or developmental changes, such information might be lost by resampling to a fixed number of points. In this work, we propose to address the issue of possible misalignment, which might be present even after resampling, by realigning the representative streamline of each subject in this 1D space with a new method, coined diffusion profile realignment (DPR). Experiments on synthetic datasets show that DPR reduces the coefficient of variation for the mean diffusivity, fractional anisotropy and apparent fiber density when compared to the unaligned case. Using 100 in vivo datasets from the HCP, we simulated changes in mean diffusivity, fractional anisotropy and apparent fiber density. Pairwise Student's t-tests between these altered subjects and the original subjects indicate that regional changes are identified after realignment with the DPR algorithm, while preserving differences previously detected in the unaligned case. This new correction strategy contributes to revealing effects of interest which might be hidden by misalignment and has the potential to improve the specificity in longitudinal population studies beyond the traditional region of interest based analysis and along-tract analysis workflows.Comment: v4: peer-reviewed round 2 v3 : deleted some old text from before peer-review which was mistakenly included v2 : peer-reviewed version v1: preprint as submitted to journal NeuroImag

Changes in Depressive Symptoms Among Adolescents with ASD Completing the PEERS® Social Skills Intervention

Depression is a common concern among people with autism spectrum disorder (ASD) and is often associated with social skills and relationship challenges. The present data, from a randomized controlled trial, examined the effect of PEERS® on self-reported depressive symptoms via the Children’s Depression Inventory (CDI) among 49 adolescents with ASD. Findings revealed that many CDI subscale scores declined (p’s \u3c 0.05) and were related to direct social contact on the Quality of Socialization Questionnaire at posttest (p’s \u3c 0.05). Exploratory analyses uncovered that suicidality was less evident following PEERS®. Findings support the notion that social functioning and depression may be intimately intertwined in ASD; therefore, bolstering social skills in ASD may positively influence other domains of functioning, including mental health

Clock reading: an underestimated topic in children with mathematics difficulties

Recent studies have shown that children with mathematics difficulties (MD) have weaknesses in multiple areas of mathematics. Andersson (2008), for example, recently found that children with MD perform significantly worse than other children on clock reading tasks. The present study builds on this recent finding and aims at a more profound understanding of the difficulties that children with MD experience with telling time. Therefore, clock reading abilities of 154 children with MD were compared to the ability of 571 average achieving children and a qualitative error analysis was performed. The results of this study confirm the earlier finding of Andersson (2008) that children with MD perform worse on clock reading than average achieving children, and additionally shows that children with MD are especially struggling the combination of procedural and retrieval strategies that are needed to read complex five minute and one minute clock times. Children with MD make more errors that reflect immature counting strategies and deficits in memory retrieval. This finding is in line with Geary’s (2005) theory of subtypes in MD, that argues that children with MD have problems with mathematical procedures and semantic memory retrieval

Adolescents’ psychological functioning and unintentional injuries: motor vehicles and sports accidents

Adolescence represents a crucial period for psychological development. Adolescents have been shown more prone to injuries than adults have and they are frequently involved in motor vehicle and sports accident. Although adolescents’ injuries have been widely investigated in international literature, victims’ psychological profiles associated with different types of accidents have been scarcely addressed. The present study aimed to identify adolescents’ psychological functioning associated with different types of injuries among a population of Italian adolescents who visited an emergency department. Moreover, the present paper intended to compare psychological profiles of adolescents who have had road and sports accidents. The sample was composed by N= 60 adolescents who attended an emergency department in central Italy. Subjects completed self-report measures assessing emotional and behavioural functioning and the use of defence mechanisms. Both road and sport accidents were associated with adolescents’ maladaptive psychological functioning. Adolescents involved in motor vehicle accidents showed a problematic emotional and behavioural functioning in general and a massive use of defense strategies; their peers who had sport accidents also show various difficulties in internalizing and externalizing functioning. Several adolescents’ emotional-behavioural variables are associated with injuries rates. Risk taking behaviours and other victims’ psychological profiles should be considered to have an exhaustive picture of individual factors that can impair a healthy development

Adolescent internet abuse. A study on the role of attachment to parents and peers in a large community sample

Adolescents are the main users of new technologies and theirmain purpose of use is social interaction. Although new technologies are useful to teenagers, in addressing their developmental tasks, recent studies have shown that they may be an obstacle in their growth. Research shows that teenagers with Internet addiction experience lower quality in their relationships with parents and more individual difficulties. However, limited research is available on the role played by adolescents' attachment to parents and peers, considering their psychological profiles.We evaluated in a large community sample of adolescents (N= 1105) the Internet use/abuse, the adolescents' attachment to parents and peers, and their psychological profiles. Hierarchical regression analyses were conducted to verify the influence of parental and peer attachment on Internet use/abuse, considering the moderating effect of adolescents' psychopathological risk. Results showed that adolescents' attachment to parents had a significant effect on Internet use. Adolescents' psychopathological risk had a moderating effect on the relationship between attachment to mothers and Internet use. Our study shows that further research is needed, taking into account both individual and family variables

Social Validity Assessment in Social Competence Interventions for Preschool Children: A Review

Social competence intervention studies published from 1970 to 2008 for preschoolers were reviewed for reports of social validity assessment. Analysis of 90 studies indicated that nearly 27% (n=24) of studies reported at least one measure of social validity assessment for: the goals (n=7), procedures (n=8), or effects (n=19). The methods used for these assessments were described including information about the participants, time of assessment and results. Trends in the rate of social validity assessment, methodological concerns and recommendations for further social validity assessments are discussed