Objective: To examine the manifestation of cognitive control deficit of children with different levels of hyperactivity, an "at risk" dimension for ADHD. Method: A group of children with high hyperactivity (N = 40) and another group of children with low levels of hyperactivity (N = 38) performed a modified stop-signal anticipation task,…

Background: The impact of chronic stressors like the COVID-19 pandemic is likely to be magnified in adolescents with pre-existing mental health risk, such as attention-deficit/hyperactivity disorder (ADHD). This study examined changes in and predictors of adolescent mental health from before to during the COVID-19 pandemic in the Southeastern and…

The present study examined the utility of video self-modeling (VSM) for reducing externalizing behaviors (e.g., aggression, conduct problems, hyperactivity, and impulsivity) observed within the classroom environment. After identification of relevant target behaviors, VSM interventions were developed for first and second grade students (N = 4),…

Objective: To bridge theory of response inhibition and learning in children with ADHD. Method: Thirty ADHD and 30 non-ADHD children (ages 9-12) were compared under concurrent variable interval (VI-15 sec., VI-30 sec. and VI- 45 sec.) reinforcement schedules that required the child to switch between the three schedules under conditions of…

The purpose of this study was to determine the relationship between treatment-induced changes in academic achievement and social skills in elementary school-age children with attention-deficit hyperactivity disorder. A sample of 123 children in grades 1 through 4 with symptoms of inattention, impulsivity and/or hyperactivity, and significant…

The research tested the hypothesis that in hyperactive (N=23) and normal (N=30) children from fifth and tenth grades, a cognitive modeling treatment procedure would produce improved scores on the Matching Familiar Figures Test (MFF), a primary index of impulsivity. (Author)

Among findings from a comparison of 13 preschool hyperactive and control males assessed on receptive-communications tasks that required listening and delayed response were that Ss did not differ in task-related movements or verbalizations, but that hyperactive Ss verbalized impulsively during transitions and tasks requiring response delay. (DB)

Thirty-two hyperactive children (ages 5-11) and 32 controls were tested on (1) a component selection task, measuring serial memory and incidental learning and (2) a cancellation task, assessing attentional variables and distractibility. It was concluded that a deficit in sustained attention and impulsivity best described the group differences.…

Two experiments were implemented in which hyperactive children were exposed to models of their own age level. It was hypothesized that modeling treatments designed to demonstrate reflective problem-solving strategies would improve the problem-solving ability of both normal and hyperactive children, and that, concomicantly, children's ability to…

Operant and cognitive behavior modification procedures were used to decrease impulsive aggressive responding by six hyperaggressive children, aged 7-11, in interpersonal problem situations. The procedures sought to improve participants' alternative response repertoires and develop internal speech as a self-control mechanism. Compared to controls,…

In addition to the prominent characteristics of high activity level, three other criteria are often used in identifying and understanding the hyperactive child. These criteria are impulsivity and cognitive tempo, cognitive immaturity and verbal mediation, and self-esteem. The purpose of this study was to demonstrate that third, fourth and fifth…

This study investigated whether the stimulant methylphenidate (Ritalin) would differentially affect performance on a test of cognitive style by hyperactive children. Subjects were 55 children, (ages 7 to 15) referred to the Learning Clinic at the Hospital for Sick Children, Toronto, Canada for hyperactivity and/or learning problems. A paired…