The study included 12 stroke patients (6 in CG and 6 in EG). Inclusion criteria of stroke patients were i) first-episode stroke diagnosis; ii) unilateral brain injury (6 with right hemiparesis and 6 with left hemiparesis); iii) chronic stage of stroke (after 6 months); iv) right-handed individuals; v) aged under 70 years; vi) able to respond to clinical assessment instruments and vii) able to move the affected upper limb sufficiently to perform the experimental task (ie drinking task). The exclusion criteria were i) unilateral neglect; ii) uncorrected hearing or iii) primary visual impairment.

Please extract information about the subject from the text and output it in the following format, if unspecified in the text, please use "NA" insteal:
output example:
{
    "sample_size": "",
    "female": "",
    "mean_age": "",
    "age_span": "",
    "education": "",
    "race": "",
    "area": "",
    "socioeconomic": "",
    "remuneration": "",
    "handedness": ""
} Provide your response in exactly 4 paragraphs (separated nearby paragraphs with 3 aterisk symbols ***).
user