Adolescent cannabis use is associated with working memory impairment. The present randomized controlled trial assigned adolescents ages 14 to 21 enrolled in cannabis use treatment to receive either working memory training (experimental group) or a control training (control group) as an adjunctive treatment. Cognitive function, drug use, and other…

The effect of background television on 6- and 12-month-olds' attention during 20 min of toy play was examined. During the first or second half of the session, a clip from a variety of commonly available television programs was presented. The duration and frequency of infants' looks to the toys and to the television indicated that regardless of age…

Earlier research established that preschool children pay less attention to television that is sequentially or linguistically incomprehensible. The authors of this study determined the youngest age for which this effect can be found. One hundred and three 6-, 12-, 18-, and 24-month-olds' looking and heart rate were recorded while they watched…

Sustained attention to visual and auditory stimuli and reflection-impulsivity were examined in 48 hyperactive and 48 normal 9 and 14 year old boys. Multivariate analyses, followed by univariate tests, indicated that the nonhyperactive Ss increased sustained attention efficiency with age to both visual and auditory Stimuli. Hyperactive Ss increased…

Robust interference effects were found which declined with age. Manipulating discriminability of the relevant stimulus dimension resulted in large changes in sorting time, but interference effects did not vary with baseline difficulty. These results were interpreted as strongly supporting both an absolute decrement model and a developmental trend…

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…

Children (ages 5, 7, and 9 years) and young adults completed two visual attention tasks that required them to make a forced choice identification response to a target shape presented in the center of a computer screen. In the first task (high correlation condition) each target was flanked with the same distracters on 80% of the trials (valid…

Discusses changes occurring in two-, four-, and six-month-old infants' visual attention span, through a series of experiments examining their ability to orient to peripheral visual stimuli. The results obtained were consistent with the hypothesis that infants get faster with age in shifting attention to a spatial location. (AA)