Sarcastic Sentences Comprehension in Persian Patients with Parkinson's disease and Healthy subjects

Despite various researches about identifying non-motor behaviors in Parkinson's patients, limited studies about cognitive and language problems have been found. According to this, it seems that the complex aspects of language has been impaired in this disease. Nonliteral language is one of the sophisticated areas related to this skill and the allusion is a subfield of that. The purpose of this study was to assess this aspect in Parkinson's patients at stage 1.
Fifteen healthy subjects and 15 patients with stage 1 Parkinson's disease have been studied. As a tool, a questionnaire consisted of 14 allusions was made by the examiner. The content validity was suitable (CVR=0.75) and the Cronbach's alpha was 0.74 for this questionnaire. The allusion was presented orally to each individual and the subject should say what that means. According to the results of K-S test, the data distribution was Normal and Independent T-test was used in order to compare the means.
Mean scores that obtained by healthy subject are more than patient’s scores, however, no significant difference was observed between the two groups.
There was no difference between the healthy subjects and stage1 Parkinson patients in the allusion constructed test. If there is a difference in this aspect, more detailed and complex tests are needed to reveal the difference, or it could be observed at more severe stages of the disease (stage 2 or higher).