NEUROLOGICAL SCIENCES, cilt.39, sa.10, ss.1683-1689, 2018 (SCI-Expanded)
Introduction Parkinson's disease (PD) is the second most frequent progressive neuro-degenerative disorder. In addition to motor symptoms, nonmotor symptoms and voice and speech disorders can also develop in 90% of PD patients. The aim of our study was to investigate the effects of DBS and different DBS frequencies on speech acoustics of vowels in PD patients.