This paper offers a model of visual functioning focusing on three factors: (1) visual capacity, (2) visual processing, and (3) visual attention. Practical implications of visual therapy are considered, and intervention strategies with children with impaired visual functioning are suggested. (Author/DB)

An attempt to replicate previous studies showing a positive effect of antecedent exercise on problem behavior found no consistent changes in problem behaviors for six adults with severe mental retardation exposed to either daily jogging or leisure games (attention control). (Author/DB)

Explores the characteristics of inattention in school children and suggests strategies for teachers. Focuses on the psychological mechanisms of arousal (both tonic and phasic), selective attention, and divided attention. Characteristics of specific attentional problems are listed along with specific suggested teaching strategies. (DB)

There are many different reasons why children have problems paying attention. One child might be visually oversensitive and thereby distracted by bright sunlight coming in through a window or by too much color on a bulletin board. Another child, who is oversensitive to smells, might be distracted by the teacher's perfume or by the odor coming from…

As cognitive architectures move to account for increasingly complex real-world tasks, one of the most pressing challenges involves understanding and modeling human multitasking. Although a number of existing models now perform multitasking in real-world scenarios, these models typically employ customized executives that schedule tasks for the…

Semantic influences on attention during the 1st fixation on a scene were explored in 3 experiments. Subjects viewed briefly presented scenes; following scene presentation, a spatial probe was presented at the location of an object whose identity was consistent or inconsistent with the scene category. Responses to the probe served as an index of…

Turner Syndrome (TS) is a genetic disorder affecting primarily females. It arises from a loss of X-chromosome material, most usually one of the two X chromosomes. Affected individuals have a number of distinguishing somatic features, including short stature and ovarian dysgenesis. Individuals with TS show a distinct neurocognitive profile…

According to a recent theory, anterior cingulate cortex is sensitive to response conflict, the coactivation of mutually incompatible responses. The present research develops this theory to provide a new account of the error-related negativity (ERN), a scalp potential observed following errors. Connectionist simulations of response conflict in an…

This study assessed visual selective attention in children with attention difficulties compared to typically achieving children using the flanker task and the feature and conjunction visual search task. Results suggest that children with attention difficulties have a characteristic inability to restrict visual attention to a limited spatial area…

Autism is a developmental disorder with possibly multiple pathophysiologies. It has been theorized that cortical feature maps in individuals with autism are inadequate for forming abstract codes and representations. Cortical feature maps make it possible to classify stimuli, such as phonemes of speech, disregarding incidental detail. Hierarchies…

Adaptive action in a constantly changing environment requires the ability to maintain intentions and goals over time and to flexibly switch between these goals in response to significant changes. Dreisbach and Goschke (2004) argued that positive affect modulates these antagonistic control demands in favor of a more flexible but also more…

This study examined 4- and 5-year-olds' ability to spontaneously use the relative duration and frequency of another's object-directed gaze for inferring that person's preference. In Experiment 1, analysis revealed a strong age effect for judgment accuracy, which could not be accounted for by cue-monitoring proficiency. Reducing the saliency of the…

Poorer performance in conditions involving task repetition within blocks of mixed tasks relative to task repetition within blocks of single task is called mixing cost (MC). In 2 experiments exploring 2 hypotheses regarding the origins of MC, participants either switched between cued shape and color tasks, or they performed them as single tasks.…

Joint attention, a synchronizing of the attention of two or more persons, has been an increasing focus of research in cognitive developmental psychology. Research in this area has progressed mainly outside of behavior analysis, and behavior-analytic research and theory has tended to ignore the work on joint attention. It is argued here, on the one…

What happens after visual attention is allocated to an object? Although many theories of attention assume that all of its features are selected and processed, there has been little direct evidence that an irrelevant feature dimension of an attended nontarget is processed. In 5 experiments presented here, the authors used a singleton paradigm to…