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This study compares loading factors of first three principal components in physiological recordings from non-disabled subjects and patients with neurological disorders. The extracted components include heart rate, heart rate variability, skin conductance response, skin conductance level, breathing frequency, and skin temperature. The research aims to estimate psychological states during robot-assisted gait rehabilitation. (Words count: 62/500)
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Figure 8. Comparison between loading factors of first three principal components (PCs) of (a) nondisabled subjects (n = 17) and (b) patients with neuro-logical disorders (n = 10). Physiological recordings used to extract PCs are heart rate (HR), heart rate variability (HVR), skin conductance response (SCR), skin conductance level (SCL), breathing frequency (BF), and skin temperature (ST). Koenig A, Omlin X, Zimmerli L, Sapa M, Krewer C, Bolliger M, Müller F, Riener R. Psychological state estimation from physiological recordings during robot-assisted gait rehabilitation. J Rehabil Res Dev. 2011; 48(4):367-86.DOI:10.1682/JRRD.2010.03.0044