Stereotype Threat Effect on a Simple Motor Task: An Investigation of the Visuo-Spatial Working Memory

Author(s):  
Raphael Laurin ◽  
Maxinse Renard-Moulard ◽  
Carole Cometti
1976 ◽  
Vol 43 (2) ◽  
pp. 447-450 ◽  
Author(s):  
Michael Peters

After prolonged practice (1300 10-sec trials) the tapping speed of the nonpreferred hand reached that of the preferred hand on a simple finger-tapping task. Analysis of the intertap intervals showed the variability of the duration of intertap intervals was smaller for the preferred than for the nonpreferred hand; the difference was not affected by the prolonged practice for N = 1.


2006 ◽  
Vol 2006 ◽  
pp. 1-7 ◽  
Author(s):  
João Ricardo Sato ◽  
Daniel Yasumasa Takahashi ◽  
Ellison Fernando Cardoso ◽  
Maria da Graça Morais Martin ◽  
Edson Amaro Júnior ◽  
...  

Recent advances in neuroimaging techniques have provided precise spatial localization of brain activation applied in several neuroscience subareas. The development of functional magnetic resonance imaging (fMRI), based on the BOLD signal, is one of the most popular techniques related to the detection of neuronal activation. However, understanding the interactions between several neuronal modules is also an important task, providing a better comprehension about brain dynamics. Nevertheless, most connectivity studies in fMRI are based on a simple correlation analysis, which is only an association measure and does not provide the direction of information flow between brain areas. Other proposed methods like structural equation modeling (SEM) seem to be attractive alternatives. However, this approach assumes prior information about the causality direction and stationarity conditions, which may not be satisfied in fMRI experiments. Generally, the fMRI experiments are related to an activation task; hence, the stimulus conditions should also be included in the model. In this paper, we suggest an intervention analysis, which includes stimulus condition, allowing a nonstationary modeling. Furthermore, an illustrative application to real fMRI dataset from a simple motor task is presented.


1976 ◽  
Vol 43 (2) ◽  
pp. 636-638 ◽  
Author(s):  
Jeffrey R. Cram ◽  
Edwin Lackey

To examine the type of proprioceptive information which subjects include in the definition of tension, 52 subjects were asked to indicate the location of where they felt tension while engaging in a simple motor task. Responses indicated that tendon stretch, muscle tension, and other cues are utilized in the subject's definition of tension.


2016 ◽  
Vol 38 (4) ◽  
pp. 1833-1845 ◽  
Author(s):  
Rhianna Goozee ◽  
Owen O'Daly ◽  
Rowena Handley ◽  
Tiago Reis Marques ◽  
Heather Taylor ◽  
...  

2009 ◽  
Vol 109 (2) ◽  
pp. 347-356 ◽  
Author(s):  
Peter Kremer ◽  
Michael Spittle ◽  
Dominic McNeil ◽  
Cassandra Shinners

2012 ◽  
Vol 18 ◽  
pp. S111
Author(s):  
M. Saxena ◽  
S.S. Kumaran ◽  
V. Goyal ◽  
M. Behari

2014 ◽  
Vol 8 (1) ◽  
pp. 93-105 ◽  
Author(s):  
Lauren Griggs ◽  
Farbod Fahimi

Commercially available robotic prosthetic arms currently use independent joint control. An alternative controller involving only control of the hand in a Cartesian frame rather than controlling each joint independently is proposed and tested. An experimental 4DOF robotic arm was used as the platform for testing the proposed control approach. As opposed to joint control, Cartesian control requires the solution to the inverse kinematics problem. The inverse kinematics solution was developed for the robotic arm using the extended Jacobian method. The two control methodologies, joint control and Cartesian control, were tested on five able-bodied human subjects. Improvement of one control methodology over the other was measured by the time it took for the subjects to complete a simple motor task. The timed trial results indicated that Cartesian control was both more intuitive and more effective than joint control. So, the results suggest that much improvement can be achieved by using the proposed Cartesian control methodology.


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