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Table 4 Pearson's product-moment correlation coefficients for different pairings between left/right upper limb MI ERD/ERS ratio in μ/β band and a rehabilitation outcome measure recorded over whole of the intervention period.

From: Applying a brain-computer interface to support motor imagery practice in people with stroke for upper limb recovery: a feasibility study

  P1 P2 P3 P4 P5
ERD/ERS μ (C3L) vs McI 0.31     -0.52
ERD/ERS μ (C3L) vs ARAT   0.45 -0.61 -0.22  
ERD/ERS μ (C3L) vs GS 0.12 -0.06 -0.61 0.05 -0.50
ERD/ERS μ (C4L) vs ARAT   0.50 0.12 -0.05  
ERD/ERS μ (C4L) vs NHPT   0.50 0.46 0.02 0.00
ERD/ERS μ (C4L) vs GS -0.17 0.32 -0.74 -0.03 -0.05
ERD/ERS μ (C3R) vs GS 0.15 0.14 -0.64 -0.10 -0.58
ERD/ERS μ (C4R) vs GS -0.27 -0.37 -0.72 0.20 0.02
ERD/ERS β (C3L) vs GS -0.15 0.04 -0.63 0.01 -0.38
ERD/ERS μ (C4L) vs ARAT   0.23 0.30 -0.69  
ERD/ERS μ (C4L) vs NHPT   0.23 0.53 -0.48 0.00
ERD/ERS μ (C4L) vs GS 0.77 0.10 -0.21 -0.05 -0.38
ERD/ERS β (C3R) vs McI 0.61     -0.09
ERD/ERS β (C3R) vs ARAT   0.46 -0.33 -0.50  
ERD/ERS β (C3R) vs GS -0.42 0.40 -0.35 -0.08 -0.63
ERD/ERS β (C4R) vs McI 0.17     -0.76
ERD/ERS β (C4R) vs NHPT   0.36 0.60 -0.23 0.00
ERD/ERS β (C4R) vs GS -0.10 0.05 -0.38 0.26 -0.51
  1. Some entries are blank because no coefficient could be computed, as the corresponding outcome scores remained unchanged.