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Table 1 Unilateral group

From: Erratum to: Testing the potential of a virtual reality neurorehabilitation system during performance of observation, imagery and imitation of motor actions recorded by wireless functional near-infrared spectroscopy (fNIRS)

Unilateral group [N = 15]

Observation

Motor imagery

Observation & motor imagery

Imitation

Left hemisphere (contralateral) (μmol/ l ± SD)

Mean ∆ [O2Hb]

0.06953 ± 0.1800

0.0833 ± 0.1404

0.0460 ± 0.2218

0.2309 ± 0.3212

Mean ∆ [HHb]

−0.0051 ± 0.03855

0.0356 ± 0.0771

−0.0089 ± 0.0963

0.0079 ± 0.0832

Intra-condition, ANOVA, repeated measures

   

[O2Hb] rest-stim

p = 0.157

p = 0.037*

p = 0.435

p = 0.015*

[HHb] rest-stim

p = 0.612

p = 0.097

p = 0.727

p = 0.717

Inter-condition ANOVA, repeated measures, post-hoc-tests, Bonferroni 0.05

∆ [HHb]

∆ [O 2 Hb]

 
 

O – MI

p = 0.347

p = 1.000

 
 

O – O&MI

p = 1.000

p = 1.000

 
 

O – IM

p = 1.000

p = 0.286

 
 

MI – O&MI

p = 0.132

p = 1.000

 
 

MI – IM

p = 1.000

p = 0.622

 
 

O&MI – IM

p = 1.000

p = 0.321

 

Main effect on condition

p = 0.253

p = 0.062

 
  1. (Top) Mean signal amplitudes (μmol/l ± SD) of channels with significant concentration changes. Separate calculations for increases in [O2Hb], decreases in [HHb] in response to the four conditions for each group. Numbers were rounded to four decimal places. (Middle) Intra-condition statistical significance of the mean changes between [O2Hb]rest and [O2Hb]stim and [HHb]rest and [HHb]stim repeated measures ANOVA. (Bottom) Inter-condition statistical significance of mean changes of ∆ [O2Hb] and ∆ [HHb] between the four conditions using repeated measures ANOVA. Shown are post-hoc tests (with Bonferroni correction); significant values (p ≤ 0.05) are highlighted by * (observation = O, motor imagery = MI, observation & motor imagery = O & MI, imitation = IM).