A review of the assessment methods of voice disorders in the context of Parkinson's disease

In recent years,a significant progress in the field of research dedicated to the treatment of disabilities has been witnessed. this is particularly true for neurological diseases,which generally influence the system that controls the execution of learned motor patterns. in addition to its importance for communication with the outside world and interaction with others,the voice is a reflection of our personality,moods and emotions. it is a way to provide information on health status,shape,intentions,age and even the social environment. it is also a working tool for many,but an important element of life for all. patients with parkinson's disease (pd) are numerous and they suffer from hypokinetic dysarthria,which is manifested in all aspects of speech production: respiration,phonation,articulation,nasalization and prosody. this paper provides a review of the methods of the assessment of speech disorders in the context of pd and also discusses the limitations.