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Prior studies have documented greater impairments in driving performance and greater alcohol consumption among adults with attention-deficit/hyperactivity disorder (ADHD). This study examined whether alcohol consumption produces a differentially greater impairment in driving among adults with ADHD in comparison to a community control group. The present study compared 50 adults with ADHD (mean age 33 years) and 40 control adults (mean age 29 years) on the effects of 2 single, acute doses of alcohol (0.04 and 0.08 blood alcohol concentration) and a placebo on their driving performance. The authors used a virtual reality driving simulator, examiner and self-ratings of simulator performance, and a continuous performance test (CPT) to evaluate attention and inhibition. Approximately half of the adults in each group were randomized to either the low or high dose alcohol treatment arms. Alcohol consumption produced a greater impact on the CPT inattention measures of the ADHD than the control group. Similar results were obtained for the behavioral observations taken during the operation of the driving simulator. Driving simulator scores, however, showed mainly a deleterious effect of alcohol on all participants but no differentially greater effect on the ADHD group. The present results demonstrated that alcohol may have a greater detrimental effect on some aspects of driving performance in ADHD than control adults.

The National Center for Accessible Media has developed a technology and protocol for inserting extended, enhanced descriptions of visually based concepts into artificially paused digital video. These “eDescriptions” describe material not fully explained by a narrator and provide analogies and explanation specifically designed for students who are visually impaired. In two experiments, fourth-grade students with visual impairments listened to video clips of narrated, age-appropriate curricular material with eDescriptions inserted along different organizational frameworks, as well as video with only standard narration. Students were first assessed on prior knowledge of the content to be covered in the videos. After three weeks, each student listened to the videos and answered questions assessing content acquired from the presentations. Students performed better on content tests for material that included eDescriptions than for material that only had standard narration. This effect was strongest when eDescriptions were placed prior to relevant material in a video. While the most effective strategy was using descriptions followed by the relevant video, both students and teachers preferred hearing a word first, followed by its definition. Other elements determined important to the creation of effective eDescriptions included selection of developmentally age appropriate vocabulary, length of individual eDescriptions, and overall length of a video when eDescriptions were added. The usefulness of eDescriptions for increasing acquisition of content information points to the need for further research into auditory description.

We conducted a series of experiments to assess the feasibility of synthesized narrations to describe online videos. To reduce the cultural bias, we included adult blind or low-vision participants from Japan and the U.S. in the main study. Our research also includes a follow-up study we conducted in Japan to assess the effectiveness of synthesized video descriptions in realistic situations. The results showed that synthesized video descriptions were generally accepted in both countries. We also found that appropriate technology support allowed a novice describer to make effective video descriptions. Based on these results, we discuss the implications for developing a technology platform for describing online videos.