Hand Grip and Load Force Coordination of the Ipsilesional Hand of Chronic Stroke Individuals

2019 ◽  
Vol 51 (6) ◽  
pp. 610-621 ◽  
Author(s):  
Bianca P. Cunha ◽  
Sandra M. S. F. Freitas ◽  
Georgia F. O. Gomes ◽  
Paulo B. de Freitas
2017 ◽  
Vol 235 (5) ◽  
pp. 1501-1509 ◽  
Author(s):  
Nyeonju Kang ◽  
James H. Cauraugh

2012 ◽  
Vol 16 (3) ◽  
pp. 275-280 ◽  
Author(s):  
Lucas Rodrigues Nascimento ◽  
Janaine Cunha Polese ◽  
Christina D.C.M. Faria ◽  
Luci Fuscaldi Teixeira-Salmela

2013 ◽  
Vol 10 (1) ◽  
pp. 34 ◽  
Author(s):  
Sabrina Tiago Pedão ◽  
José Angelo Barela ◽  
Kauê Carvalho de Almeida Lima ◽  
Paulo Barbosa de Freitas

Motor Control ◽  
2002 ◽  
Vol 6 (3) ◽  
pp. 282-293 ◽  
Author(s):  
Blanka Hejduková ◽  
Nasser Hosseini ◽  
Bo Johnels ◽  
Pall E. Ingvarsson ◽  
Goran Steg ◽  
...  

2013 ◽  
Vol 550 ◽  
pp. 46-50 ◽  
Author(s):  
Nicholas Emge ◽  
Goran Prebeg ◽  
Mehmet Uygur ◽  
Slobodan Jaric

2010 ◽  
Vol 475 (2) ◽  
pp. 115-119 ◽  
Author(s):  
Mehmet Uygur ◽  
Paulo B. de Freitas ◽  
Slobodan Jaric

1999 ◽  
Vol 128 (1-2) ◽  
pp. 76-80 ◽  
Author(s):  
D.J. Serrien ◽  
Mario Wiesendanger

2003 ◽  
Vol 90 (5) ◽  
pp. 2978-2986 ◽  
Author(s):  
H. Henrik Ehrsson ◽  
Anders Fagergren ◽  
Roland S. Johansson ◽  
Hans Forssberg

Grasp stability during object manipulation is achieved by the grip forces applied normal to the grasped surfaces increasing and decreasing in phase with increases and decreases of destabilizing load forces applied tangential to the grasped surfaces. This force coordination requires that the CNS anticipates the grip forces that match the requirements imposed by the self-generated load forces. Here, we use functional MRI (fMRI) to study neural correlates of the grip-load force coordination in a grip-load force task in which six healthy humans attempted to lift an immovable test object held between the tips of the right index finger and thumb. The recorded brain activity was compared with the brain activity obtained in two control tasks in which the same pair of digits generated forces with similar time courses and magnitudes; i.e., a grip force task where the subjects only pinched the object and did not apply load forces, and a load force task, in which the subjects applied vertical forces to the object without generating grip forces. Thus neither the load force task nor the grip force task involved coordinated grip-load forces, but together they involved the same grip force and load force output. We found that the grip-load force task was specifically associated with activation of a section of the right intraparietal cortex, which is the first evidence for involvement of the posterior parietal cortex in the sensorimotor control of coordinated grip and load forces in manipulation. We suggest that this area might represents a node in the network of cortical and subcortical regions that implement anticipatory control of fingertip forces for grasp stability.


2011 ◽  
Vol 504 (3) ◽  
pp. 330-335 ◽  
Author(s):  
Xin Jin ◽  
Mehmet Uygur ◽  
Nancy Getchell ◽  
Susan J. Hall ◽  
Slobodan Jaric

Sign in / Sign up

Export Citation Format

Share Document