Digital Commons Network^™

Are Neuronal Mechanisms Of Attentional Modulation Universal Across Human Sensory And Motor Brain Maps?, Edgar A. Deyoe, Wendy E. Huddleston, Adam S. Greenberg

Kinesiology Faculty Articles

One's experience of shifting attention from the color to the smell to the act of picking a flower seems like a unitary process applied, at will, to one modality after another. Yet, the unique experience of sight vs smell vs movement might suggest that the neural mechanisms of attention have been selectively optimized to employ each modality to greatest advantage. Relevant experimental data can be difficult to compare across modalities due to design and methodological heterogeneity. Here we outline some of the issues related to this problem and suggest how experimental data can be obtained across modalities using more uniform …

Remote Concussion History Does Not Affect Visually-Guided Reaching In Young Adult Females, Christopher James Fueger, Lauren E. Sergio, Sabine Heuer, Labina Petrovska, Wendy E. Huddleston

Kinesiology Faculty Articles

Aim: We examined the long-term effects of concussions in young adult females on visuomotor behavior during a visually-guided reaching task of various complexities. Materials & methods: 20 females with a history of longer than 6 months since a concussion and 20 healthy females quickly and accurately performed a delayed reach to a previously cued target. Results: As both cognitive and motor load increased, task performance decreased for both groups (p < 0.05). However, contrary to our primary hypothesis, no differences in task performance were found between the two experimental groups (p > 0.05). Conclusion: The young adult females with a remote history of concussion demonstrated no deficits in visuomotor behavior on an attention-mediated reaching task as compared with control participants.

Lay abstract: …

Lack Of Generalization Between Explicit And Implicit Visuomotor Learning, Jinsung Wang, Shancheng Bao, Grant Tays

Kinesiology Faculty Articles

Visuomotor adaptation has been thought to occur implicitly, although recent findings suggest that it involves both explicit and implicit processes. Here, we investigated generalization between an explicit condition, in which subjects reached toward imaginary targets under a veridical visuomotor condition, and an implicit condition, in which subjects reached toward visual targets under a 30-degree counterclockwise rotation condition. In experiment 1, two groups of healthy young adults first experienced either the explicit or the implicit condition, then the other condition. The third group experienced the explicit, then the implicit condition with an instruction that the same cognitive strategy could be used …

Do Stand-Biased Desks In The Classroom Change School-Time Activity And Sedentary Behavior?, Ann M. Swartz, Nathan Tokarek, Krista M. Lisdahl, Hotaka Maeda, Scott J. Strath, Chi C. Cho

Kinesiology Faculty Articles

The purpose of this study was to determine the effect of stand-biased desks on the physical activity and sedentary behavior of third, fourth and sixth grade students across the school year. Methods: This within classroom crossover design study used teacher-determined allocation for seating within each classroom. Half of the students used a stand-biased desk and half used a sitting desk. Five-day hip-worn accelerometer assessments were completed at baseline and at the end of each nine-week intervention period. A mixed effects model was used to determine the differences in the percentage of time spent active and sedentary. Results: A …