Perceptual and Motor Skills
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Computerized measures of finger tapping: effects of hand dominance, age, and sex.
Computerized measures of digit tapping rate were obtained over 3 successive, 10-sec. periods in the right and left index fingers, from a community sample of 1,519 participants (ages 18 to 65 years; 607 men, 912 women). Differences between the dominant and non-dominant hands were found for tapping ra...
Chronic pain effect on body schema and neuropsychological performance in athletes: a pilot study.
The ability to recognize the body parts blindfolded is called body schema. Chronic pain disrupts cognitive function and could lead to an altered body schema. Commonly competitive athletes have chronic pain, but still train and compete. The goal of this study was to assess the body schema of competit...
Color-picture interference in children: effects of spatial and temporal segregation of color and form.
Children 5 to 8 years of age find it harder to name the color of a meaningful picture (e.g., of a table) than to name the color of an abstract form. Previous research suggests that this color-object interference effect is most likely due to competition between the task set of color-naming and the ch...
Jordan-3: measuring visual reversals in children as symptoms of learning disability and attention-deficit/hyperactivity disorder.
The purpose of this research was to establish new norms for the Jordan-3 for children ages 5 to 18 years. The research also investigated the frequency of visual reversals in children previously identified as having reading disability, attention-deficit/hyperactivity disorder, and broader learning di...
Coactivation of lower leg muscles during body weight-supported treadmill walking decreases with age in adolescents.
The kinematics of children's walking are nearly adult-like by about age 3-4 years, but metabolic efficiency of walking does not reach adult values until late in adolescence or early adulthood, perhaps due to higher coactivation of agonist/antagonist muscle pairs in adolescents. Addit...
Priming of disability and elderly stereotype in motor performance: similar or specific effects?
In three experimental studies, the effects of priming participants with the disability stereotype were investigated with respect to their subsequent motor performance. Also explored were effects of activating two similar stereotypes, persons with a disability and elderly people. In S...
Self-other rating agreement and leader-member exchange (LMX): a quasi-replication.
Data from a sample of 83 elected community leaders and 391 direct-report staff (resulting in 333 useable leader-member dyads) were reanalyzed to test relations between self-other rating agreement of servant leadership and member-reported leader-member exchange (LMX). Polynomial regre...
Contrast of biochemical and psychosocial explanations of the relationship of exercise and improved mood.
To evaluate possible predictors of exercise-related mood improvements, formerly sedentary, obese adults initiating an exercise and nutrition treatment (N = 322) were assessed over 6 mo. Multiple regression analysis, with simultaneous entry of measures of exercise volume and exercise-...
Recognition of tactile relief by children and adults.
This study was designed to compare tactile sensitivity of children and adults on printed target stimuli covering a wide range of elevations and requiring different resolutions. A recognition-relief task using 9 digits at 6 levels of elevation from a surface (0.5, 0.4, 0.3, 0.2, 0.1,...
Sport stacking activities in school children's motor skill development.
This study examined the impact of a 12-wk. sport stacking intervention on reaction time (RT), manual dexterity, and hand-eye coordination in elementary school-aged children. 80 Grade 2 students participated in a 15-min. sport stacking practice session every school day for 12 wk., and were tested on...