Cognitive health care system and its application in pill‐rolling assessment

Syed Shah, Xiaodong Yang, Qammer H. Abbasi

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Directional antennas have been extensively used in wireless sensor networks (WSNs) for various applications. This work presents the application of a four‐beam patch antenna as a sensor node to assess the pill‐rolling effect in Parkinson disease. The four‐beam patch is small in size, highly directive, and can suppress the multipath fading encountered in indoor settings that adversely affects the measurements. The pill‐rolling effect refers to tremors in the hands, particularly in the forefinger and the thumb, which the patient involuntary rubs together. The core idea is to develop a low‐cost framework that effectively evaluates the particular movement disorder to assist doctors or clinicians in carrying out an objective assessment using the S‐band sensing technique leveraging small wireless devices operating at 2.4 GHz. The proposed framework uses the perturbations in amplitude and phase information to efficiently identify tremors and nontremors experienced in the fingers. The unique imprint induced by each body motion is used to determine the particular body motion disorder. The performance of the framework is evaluated using the support vector machine algorithm. The results indicate that the framework provides high classification accuracy (higher than 90%).
Original languageEnglish
Article numbere2632
JournalInternational Journal of Numerical Modelling: Electronic Networks, Devices and Fields
Issue number6
Early online date6 Jun 2019
Publication statusPublished - Nov 2019
Externally publishedYes


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