Interference control in adolescents with Mild-to-Borderline Intellectual Disabilities and/or behavior disorders

The aim of this study was to investigate interference control in adolescents with Mild to Borderline Intellectual Disability (MBID) by addressing two key questions. First, as MBID is often associated with comorbid behavior disorders (BD), we investigated whether MBID and BD both affect interference control. Second, we studied whether interference control deficits are associated to problems in everyday executive functioning. Four groups of adolescents with and without MBID and/or BD performed the Eriksen flanker task, requiring participants to respond to a central target while ignoring interfering flanking stimuli. Their teachers rated behavior on the Behavior Rating Inventory Executive Function (BRIEF). We found pronounced effects of MBID but not BD on flanker interference control. In contrast, we observed pronounced effects of BD, but not MBID, on the BRIEF. In addition, flanker interference scores and BRIEF scores did not correlate. These results are taken to suggest that adolescents with MBID are characterized by deficits in interference control that do not become manifest in ratings of everyday executive functioning. In contrast, adolescents with BD are not characterized by deficits in interference control but do show elevated ratings of deficits in everyday executive function.     

Development and training of role-taking abilities with emotionally disturbed preschoolers: A pilot study

The purposes of the present study were to verify whether emotionally disturbed preschoolers admitted to a medical day-care center would evidence a developmental lag in role-taking skills as compared to nondisturbed kindergartners and to study the effects of a training program with as its purpose to teach the MDC children to deal with their own and others' emotions. Forty-three children from a kindergarten (n=22; mean age of 4.11 years) and a medical day-care center (n=21; mean age of 4.11 years) participated in this study. The MDC children were randomly assigned to a control (n=9) and to a training condition (n=12). The training for the latter group covered a 10-week period. The results from this pretest and posttest design revealed no differences in performance for emotional role-taking (i.e., Borke-task) and social guessing (i.e., De Vries-task) between the disturbed and nondisturbed children on the pretest. On the posttest, however, a significant developmental lag was evident for the MDC-children who did not receive the training and those who did and the control group.