The effect of motor imagery and mirror therapy on upper extremity function according to the level of cognition in stroke patients.

This study was conducted to investigate the effects of motor imagery (MI) and mirror therapy (MT) on upper extremity function according to the level of cognition in stroke patients. Twenty-four participants who were diagnosed with stroke were divided into a mild cognitive group (n = 12) and a severe cognitive group (n = 12). Then, the two groups were again divided into MI group (n = 6) and MT group (n = 6). The participants were evaluated for function of upper extremity using the Box and Block Test (BBT), the Jebsen-Taylor Hand Function Test (JTHFT), and Manual Function Test (MFT). There were significant differences between the two groups of cognitive function of mild level in the post-test of JTHFT (p < 0.05). In the MI group, significant differences were found in the pre- and post-test scores for all variance (p < 0.05). In the MT group, significant differences were found in the pre- and post-test scores for JTHFT and MFT (p < 0.05). There were significant differences between the two groups of cognitive function of severe level in the post-test of all variances (p < 0.05). Furthermore, in the MT group, significant differences were found in the pre- and post-test scores for all variances (P < 0.05). The results of this study suggest that applying MI to the mild cognitive group is effective and that applying MT to the severe cognitive group is effective.