Objective: Very few studies have investigated intervention approaches that may be efficacious for youth with ADHD and co-occurring cognitive disengagement syndrome (CDS) symptoms. This study examined the feasibility, acceptability, and preliminary efficacy of a mindfulness-based intervention for adolescents with ADHD and co-occurring CDS symptoms.…

Differences in the default mode network are among the most replicated brain-level findings in autistic individuals. Furthermore, subregions within the default mode network are associated with cognitive functions such as mentalising that are immediately relevant to cognitive theories of autism. Recent evidence suggests that the default mode network…

This handbook offers comprehensive coverage of the topics that are relevant to the field of adolescent and young adult development. The "APA Handbook of Adolescent and Young Adult Development" reviews the many factors that impact youth development across varying themes including biological underpinnings, cognitive and emotive processes,…

Purpose: We investigated developmental differences in a dual task involving rhyming and tone judgment/decisions and the effects of varying cognitive demands on task performance. Method: Participants were 7- to 11-year-olds, 12- to 15-year-olds, and adults between 18 and 40 years (n = 19 per group). The rhyming task consisted of three stimuli…

Background: While the effects of early sleep problems on children's development may persist for some time, there is limited understanding in the field regarding whether these effects persist into adolescence. Research is needed to address this issue, as it is an important area to investigate to assess its influence on children's success in school…

Of the diagnostic features of autism, relatively little research has been devoted to restricted and repetitive behavior, particularly topographically complex forms of restricted and repetitive behavior such as rigidity in routines or compulsive-like behavior (e.g., arranging objects in patterns or rows). Like vocal or motor stereotypy,…

Onset of psychosis may be associated with abnormal adolescent neurodevelopment. Here we examined the neurocognitive profile of first-episode, adolescent onset psychosis (AOP) as compared to typically developing adolescents, and asked whether neurocognitive performance varied differentially as a function of age in the cases compared with controls.…

Attachment Theory has received increasing interest as a framework allowing for a more refined understanding of the potential consequences of early relational trauma on psychological and social adjustment. Research has provided support for the role of disorganized attachment, both as a sequela of traumatic experiences and as a risk factor for…

Finds support for the global trend hypothesis which posits that cognitive processing speed changes as a function of age and all component processes change at the same rate. (PCB)

Examined the relationship between ego identity, formal operations, and egocentrism in adolescents. Results indicated significant positive correlations between ego identity and formal operations and between ego identity and grade in school. Grade in school explained 21 percent of the variance while formal operational thinking, egocentrism, and sex…

Politicization helps produce coherent, though not necessarily mature, policy-thinking styles. The findings indicate the need to investigate policy thinking further. (Author)

Recounts 3 experiments providing evidence against 2 interpretations of previous research findings that explicit memory develops substantially from 3 years of age to adulthood while implicit memory remains stable. Argues that the implicit-explicit memory developmental dissociation reflects differences in strategic processing (strategy use and…

To characterize cognitive maturation through adolescence, processing speed, voluntary response suppression, and spatial working memory were measured in 8- to 30-year-old (N=245) healthy participants using oculomotor tasks. Development progressed with a steep initial improvement in performance followed by stabilization in adolescence. Adult-level…

Reported are two studies of the categorization of adolescents' justifications for the morality of others' actions. To analyze interview data, a new method of scoring moral judgments was developed. Study 1, involving 180 individuals from 12 to 21 years of age, focused on dimensions of reflection and abstraction associated with four categories of…

Cognitive development as it progresses from concrete to abstract thinking is discussed as it relates to adolescent youth and the early secondary curriculum. Piagetian tests administered to a group of freshman and sophomore high school students revealed that many had difficulty with those scholastic activities requiring formal reasoning. Three…