Classification of Hand Grasp Kinetics and Types Using Movement-Related Cortical Potentials and EEG Rhythms

Table 3

Classification accuracies obtained for different motor imagination kinetic profiles. F20: fast 20% MVC, F60: fast 60% MVC, S20: slow 20% MVC, and S60: slow 60% MVC. SFS: sequential forward selection, and PCA: principal component analysis. The classification accuracies obtained without and with SFS and PCA are presented in the top and bottom part, respectively.

	Predicted
	F20	F60	S20	S60
Kinetic-MI without SFS
True
F20	0.48	0.19	0.19	0.15
F60	0.23	0.33	0.27	0.17
S20	0.20	0.22	0.38	0.19
S60	0.30	0.22	0.11	0.37
Kinetic-MI with SFS
True
F20	0.42	0.21	0.18	0.20
F60	0.24	0.33	0.25	0.18
S20	0.22	0.22	0.35	0.22
S60	0.34	0.22	0.10	0.35
Kinetic-MI with PCA
True
F20	0.40	0.21	0.17	0.22
F60	0.25	0.31	0.25	0.19
S20	0.22	0.24	0.35	0.19
S60	0.32	0.30	0.10	0.28