The vision behind our project is a closed-loop system for continuous deep brain stimulation (DBS) based on features extracted from complex motion data. Our focus is on Parkinsons Disease (PD) patients, with a possible expansion to related neurological disorders. The system we envision is lightweight, will continuously gather motion information, will automatically extract high-level features fro...

OBJECTIVES To evaluate the respondent burden and patient-perceived content validity of the Parkinson's disease (PD)-specific health status questionnaire PDQ-39, and the linguistic validity of its revised Swedish version. MATERIALS AND METHODS Eighteen PD patients completed the revised Swedish version of the PDQ-39. Respondent burden was assessed by recording the time taken to complete the que...

BACKGROUND To assess validation and reliability of the Persian version of the short-form 8-item Parkinson's disease questionnaire (PDQ-8) and to compare its psychometric properties with that of the long-form questionnaire (PDQ-39) in order to evaluate the health-related quality of life (HRQoL) in patients with Parkinson's disease (PD). METHODS This cross-sectional study was conducted on 114 n...

OBJECTIVES to briefly outline the development and validation of the Parkinson's Disease Questionnaire (PDQ-39) and then to provide evidence for the use of the measure as either a profile of health status scores or a single index figure. DESIGN the PDQ-39 was administered in two surveys: a postal survey of patients registered with local branches of the Parkinson's Disease Society of Great Brit...