Context-Dependent Learning in People With Parkinson's Disease

Context-dependent learning is a phenomenon in which people demonstrate superior performance in the context in which they originally learned a skill but perform less well in a novel context. This study investigated context-dependent learning in people with Parkinson's disease (PD) and age-matched nondisabled adults. All participants practiced 3 finger sequences, each embedded within a unique context (colors and locations on a computer screen). One day after practice, the participants were tested either under the sequence-context associations remained the same as during practice, or the sequence-context associations were changed (SWITCH). Compared with nondisabled adults, people with PD demonstrated significantly greater decrement in performance (especially movement time) under the SWITCH condition, suggesting that individuals with PD are more context dependent than nondisabled adults.     

Engaging in Less Protective Self-Presentation: The Effects of a Friend's Presence on the Socially Anxious

To cope with their fear of negative evaluation, socially anxious people use protective self-presentation strategies. We hypothesized that the presence of a close friend (vs. being alone) would lead socially anxious people to engage in more acquisitive self-presentation tactics. Results supported the hypotheses. With a friend present versus not, socially anxious participants presented themselves more positively to and selected more self-disclosing topics to discuss with a stranger they believed they would meet face-to-face. Friendship strength moderated some of the effects. Results suggest that friends’ support may allow socially anxious people to satisfy safety needs while engaging in less protective self-presentation.     

SPELLING AND THE GROWTH OF CONCEPT OF WORD AS FIRST GRADERS WRITE

Word is a critical concept in beginning literacy, a foundation for both reading and orthographic understanding. In this study, the development of concept of word in children's own writing during first grade was examined and its relationship with developing spelling ability was described.

Children in three intact first grade classes were assigned concept of word tasks "typical" of first grade instruction at the beginning and end of the year. The spaces left between words as the children copied from the board, wrote from dictation, and created their own stories in a free writing task were counted and compared across tasks and between Fall and Spring. In addition, the children were given an assessment of their developmental spelling level at both times. The spelling scores were compared with the concept of word measures.

Analyses of the Fall data revealed that the word concept tasks were significantly related to each other, suggesting that the tasks tap different aspects of the same construct, concept of word. Spelling development was also related to concept of word, and children who demonstrated use of a letter name strategy in spelling were more likely to perform well on the concept of word tasks.

A 3 (word concept tasks) x 2 (trials) MANOVA identified a significant interaction between tasks and trials. Post hoc analyses found significant differences among all of the concept of word tasks overall. In the Fall, all comparisons among the tasks were significant, and in the Spring, all except the difference between Copied and Dictated were significant.

There appears to be a developmental hierarchy in acquisition of concept of word which is related to the perceptual demands of writing tasks. Though important gains in conceptual understanding are made during the first grade year, there are still differences in performance on concept of word tasks at the end of first grade.     

Research Developments on the Therapeutic Alliance in Psychodynamic Psychotherapy

Research on psychotherapy in general, and psychodynamic therapy in particular, has consistently found that the quality of the alliance predicts the outcome of treatment. Little empirical support exists for the notion that the alliance sets the stage for techniques to be most effective, although adequate studies of this interaction between techniques and alliance are scarce. Research suggests that that the alliance is influenced in part by preexisting patient characteristics and in part by the quality of therapist interventions. Limitations of the empirical literature on the alliance are presented and some suggestions for future research are given.     

Longitudinal Analysis of Associations between 3-D Mental Rotation and Mathematics Reasoning Skills during Middle School: Across and within Genders

ABSTRACT

The development of math reasoning and 3-d mental rotation skills are intertwined. However, it is currently not understood how these cognitive processes develop and interact longitudinally at the within-person level – either within or across genders. In this study, 553 students (52% girls) were assessed from fifth to seventh grades on 3-d mental rotation spatial skills (assessed each fall) and numerical and algebraic math reasoning skills (assessed each spring). Boys outperformed girls on mental rotation tests across all three grades, and on fifth and seventh grade math reasoning tests. Consistent with the literature on between-person comparisons, there was a positive correlation between mental rotation and math reasoning skills in the full sample and for both genders. A random intercept cross-lagged panel model was used to control for these confounding group-level differences in order to isolate within-person associations between earlier and later performance. Initially in fifth grade, math reasoning predicted subsequent sixth grade mental rotation skills. By seventh grade, more advanced mental rotation skills were associated with subsequent math reasoning skills while math reasoning skills were no longer predictive of mental rotation skills. An examination of gender differences revealed that this pattern was driven by boys while girls experienced less within-person change. These findings suggest that boys may initially rely in part on their math reasoning skills to solve 3-d mental rotation tasks. However, as their 3-d mental rotation skills mature, they begin to primarily depend upon these developing spatial skills to solve math reasoning problems rather than the reverse.     

Relationship Quality as a Moderator of Anxiety in Siblings of Children Diagnosed with Autism Spectrum Disorders or Down Syndrome

The purpose of this study was to examine typically-developing adolescents’ perceived relationship quality with their developmentally-disabled sibling, specifically siblings diagnosed with an autism spectrum disorder (ASD) or Down syndrome (DS). The 119 eleven through seventeen-year-old adolescent participants (M = 13.32, SD = 1.90) completed an online survey that assessed demographics, sibling relationship quality, and anxiety. Results showed that siblings of children with DS have a greater overall sibling relationship quality than do siblings of children with an ASD. Results further indicated that reporting more negative interchanges within the sibling relationship was related to higher levels of anxiety regardless of sibling disability type. Lastly, sibling relationship quality moderated the relation between sibling disability type and anxiety. These findings promote greater understanding of the sibling dynamic in families with children with developmental disabilities and suggest the need for establishing more research and greater clinical evaluation in this area. Furthermore, the current study suggests that therapeutic intervention to address the sibling relationship quality within children diagnosed with ASDs and their typically-developing siblings would be beneficial in order to increase social support within the relationship as well as decrease the amount of negative interchanges within the sibling relationship. Results also suggested that decreasing the amount of negative interchanges within the sibling relationship may decrease the level of anxiety the typically-developing sibling reports.     

Parental Contributions to the Delay of Gratification in Preschool-aged Children

Delay of gratification in young children has been linked to long-term behavioral and academic outcomes. This study explored parent behavior during a laboratory paradigm as possible associates of delay ability. The sample consisted of 50 two- and three-year-old children and their primary caregivers. A newly created laboratory task, the gift delay task, was conducted to assess delay of gratification. Additionally, parents completed a child temperament (EASI-III) questionnaire. Based on the award-oriented behavior in the gift delay task, children were classified into three groups: delay (20 %), touch and go (i.e., approached the gift, but demonstrated some delay ability; 46 %), and non delay (34 %). Likewise, parents were classified into three groups: non-directive (parents did not initiate any interactions, but may have participated in child-led activity), active (parents initiated interaction with the child no more than 3 times), and very active (parents initiated 4 or more interactions with the child). Significant differences in emotionality and impulsivity were found between the 3 groups of children; additionally, significant differences in delay ability were found based on parent classifications suggesting that there is an optimal level of involvement on part of the parent that helps the child to wait, but beyond this point, involvement may be detrimental to a successful delay outcome. Implications for behavioral interventions focused on parental support and scaffolding are discussed.