This study compared children with attention deficit hyperactivity disorder (ADHD) and mental retardation with children with only mental retardation on tasks involving sustained and selective attention. No compelling evidence emerged for sustained attention deficits in the ADHD children, though evidence suggesting selective attention deficits was…

Joint attention and topic initiation in caregiver-child interactions were explored in relation to language gains of 28 children with Down syndrome (DS) and 17 typical children. DS caregivers spent more time in joint attention than controls. Receptive language gains were associated with caregivers maintaining attention to child-selected toys and…

Examined effects of a click signaling arrival of a visual stimulus to be timed on temporal discrimination in 3-, 5-, and 8-year-olds. Found that in all groups, the proportion of long responses increased with the stimulus duration, although the steepness of functions increased with age. Stimulus duration was judged longer with than without the…

Sustained and selective attention among 30 fourth- through sixth-graders with learning disabilities (LD) and 20 controls was compared. Results indicated that LD students are less able to narrow their attention and also have slower information-processing skills, despite similar ability between groups for sustaining attention and inhibiting…

Discussion of the benefits and limitations of educational video (EV) emphasizes qualities that should be considered at the scriptwriting stage. Topics discussed include the ability to transcend time and space; attention manipulation; special effects, such as graphics and animation; cost benefits; opportunities for independent learning; and lack of…

Ten children and adolescents with severe mental retardation were assigned in matched pairs to either a lexigram augmentative communication condition (graphic symbols) or a control condition (social stimulation). The three subjects who successfully acquired lexigrams also exhibited changes in attention, intentional communication, and sociability.…

Three papers comment on a paper by Abrahamsen et al (EC 212 728) on concomitants of success in acquiring an augmentative communication system (AAC) by persons with severe mental retardation. Comments focus on design and methodological requirements, principles of AAC, and sequence and process in indirect aspects of communicative gains. (DB)

The study with five learning disabled students (grades 6-8) found that a self-monitoring intervention resulted in reduced adult initiation of assistance, decreased student-adult interaction during independent seatwork, and maintenance of high levels of student attention without adult assistance. (Author/DB)

This study examined effects of simple switch-activated toy use and switch-activated computer program use with two children (ages 2 and 3) with severe and profound disabilities. Highest independent switch activation, orientation to the stimulus, and attention to the stimulus were found for both subjects when both the computer programs and the toys…

Four experiments involving 42 Harvard University students and 35 subjects addressing the role of attention in phonetic perception demonstrate that attention influences the signal-to-noise ratio in the phonetic encoding of acoustic cues. Implications for understanding speech perception and general theories of the role of attention in perception are…

Three preschoolers with mental retardation were taught object labels using an elicited-production method, under two conditions: following the child's lead and recruiting the child's attention toward the target object. Results indicated that object-label teaching was more efficient under the following-the-child's-lead condition. (Author/JDD)

Examined visual fixation in infants 6 months to 2 years old for fit with theory of attentional inertia. Found that fixations had lognormal distribution, heart rate decreased during a look, and heart rate returned to prestimulus levels immediately before look offset. Older children showed different looking patterns to two types of stimuli; younger…

Direct observational data were collected on the behavior of 26 elementary school-age boys with fragile X syndrome (FXS), the most prevalent inherited cause of mental retardation, during classroom academic activities. Findings indicated classroom engagement comparable to that of peers and not related to intrasubject variables such as severity of…

An ethnographic study examined the engagement and learning of five students with learning disabilities participating in Guided Inquiry supporting Multiple Literacies (GisML). A case study illustrates how GisML helped one 4th grader achieve positive outcomes, how GisML also revealed his learning problems, and how contextual features served both to…

Thirty-six adults with moderate to severe mental retardation received either general case programming, rule learning, or attention control instruction in a table-setting learning task. General case programming and rule learning were successful in promoting generalized table setting. Only general case programming facilitated maintenance of…