Parkinson's disease is a neurodegenerative disorder characterized by motor impairment that can lead to impairment of speech articulation, voice, and swallowing. This study involved a literature review of studies published in national journals of speech with descriptors containing the term "Parkinson's disease" and published from January 2007 through June 2011. We identified 16 publications on the subject, including 13 articles and 3 abstracts distributed in 4 journals of speech; journal D accounted for 9 studies (56,25%); A, three (18,75%); B, three (18,75%); and C, one (6,25%). Regarding the study types, there were 6 case-control studies (37,5%), 6 cross-sectional studies (37,5%), 3 literature reviews (18,75%), and 1 case report (6,25%). Regarding author qualifications, speech therapists were present in all 16 studies (100%), doctors in 5 (31,25%), physical therapists in 4 (25%), a bachelor's degree candidate in information systems in 1 (6,25%), and a biomedical engineer in 1 (6,25%). This study revealed that Parkinson's disease has major influences on speech, although publications are limited. Most studies have addressed the area of voice, and more studies of cognitive and swallowing disorders related to Parkinson's disease are warranted.