Comparative Analysis Electroencephalographic of Alpha, Beta and Gamma Bands of a Healthy Individual and One with Hemiparesis

I can see absolutely no use of this for survivors and I doubt your doctor will either.  Someone could enlighten us all.
https://www.jstage.jst.go.jp/article/jpts/26/6/26_jpts-2013-470/_article

Dionis de Castro Dutra Machado^{1) 2) 4)}, Glenda Crispim Lima^{1) 2)}, Rodrigo Souza dos Santos^{1) 2)}, Amanda Júlia Bezerra Ramos^{1) 2)}, Cáio César Menezes de Sousa^{1) 2)}, Rayele Pricila Moreira dos Santos¹⁾, Karyna Kelly Oliveira Coelho^{1) 2)}, Mauricio Cagy⁴⁾, Marco Orsini³⁾, Victor Hugo Bastos^{1) 2)}

1) Department of Physical Therapy, Federal University of Piauí: Av. São Sebastião, 2819-64202-020, Parnaíba, PI, Brazil 2) Brain Mapping and Functionality Laboratory (LAMCEF), Federal University of Piauí, Brazil 3) Master Program of the Rehabilitation Science, UNISUAM, Brazil 4) Brain Mapping and Sensory Motor Integration Laboratory, Federal University of Rio de Janeiro (IPUB/UFRJ), Brazil

Released on J-STAGE June 30, 2014  

Keywords: Electroencephalography, Hemiparetic, Rehabilitation

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• Abstracts
• References(18)

[Purpose] The study analyzed the electroencephalographic (EEG) data of the central cortical areas, during execution of the motor gestures of feeding, activation of the system of mirror neurons, and imagery between a right hemiparetic volunteer (RHV) and a healthy volunteer (HV). [Subjects and Methods] The volunteers’ EEG data were recorded with their eyes open for 4 minutes while they performed five experimental tasks. [Results] The alpha band, absolute power value of HV was lower than that of RHV. In the beta band, during the practice condition, there was an increase in the magnitude of the absolute power value of HV at T3, possibly because T3 is representative of secondary motor areas that work with cortical neurons related to planning and organizing sequence of movements performed by the hands. The gamma band is related to the state of preparation for movement and memory. The results of this study indicate that there was increased activation of the gamma frequency band of HV. [Conclusion] The findings of this study have revealed the changes in pattern characteristics of each band which may be associated with the brain injury of the hemiparetic patient. 

Even the 4 page full text did nor provide any understanding at all.