Psychogenic tremor disorders identified using tree‐based statistical algorithms and quantitative tremor analysis

Piboolnurak, Panida; Rothey, Natalia; Ahmed, Anwar; Ford, Blair; Yu, Qiping; Xu, Dong; Pullman, Seth L.

doi:10.1002/mds.20634

Cited by 18 publications

(5 citation statements)

References 21 publications

(19 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The investigators also noted that the absence of finger tremor was more compatible with PT when compared to organic tremor. Although tremorgraphic recordings and neurophysiological techniques may enhance the differentiation of ET and PT, [30][31][32][33] most physicians do not have access to this technology and must rely on clinical findings. There is no consensus at this time about the best treatment of PT, but the development of a PMD rating scale is an important step in the validation of therapeutic strategies [34].…”

Section: Discussionmentioning

confidence: 98%

Distinguishing psychogenic and essential tremor

Kenney

Diamond

Mejia

et al. 2007

Journal of the Neurological Sciences

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 98%

Distinguishing psychogenic and essential tremor

Kenney

Diamond

Mejia

et al. 2007

Journal of the Neurological Sciences

View full text Add to dashboard Cite

“…47,87,88 Relatively consistent physiologic findings include an increase in tremor amplitude with inertial loading (Figure 7), large fluctuations in frequency and amplitude, co-activation of antagonist muscles at the onset of tremor, and the absence of finger tremors. [89][90][91] Coexistent non-physiologic signs such as weakness or sensory abnormalities and underlying psychopathology can also help to suggest the diagnosis. Because it may be difficult to approach patients with a diagnosis of psychogenic tremor, clinicians are often reluctant to discuss the possibility of psychogenicity.…”

Section: Psychogenic Tremormentioning

confidence: 99%

Tremor: Clinical Phenomenology and Assessment Techniques

Hess

Pullman

2012

Tremor and Other Hyperkinetic Movements

Self Cite

102

View full text Add to dashboard Cite

Background: Tremors are among the most common movement disorders. As there can be considerable variability in the manner in which clinicians assess tremor, objective quantitative tools such as electromyography, accelerometry, and computerized, spiral analysis can be very useful in establishing a clinical diagnosis and in research settings.Methods: In this review, we discuss the various methods of quantitative tremor analysis and the classification and pathogenesis of tremor. The most common pathologic tremors and an approach to the diagnosis of tremor etiology are described.Conclusions: Pathologic tremors are common, and the diagnosis of underlying etiology is not always straightforward. Computerized quantitative tremor analysis is a valuable adjunct to careful clinical evaluation in distinguishing tremulous diseases from physiologic tremors, and can also help shed light on their pathogenesis.

show abstract

“…EMG has been used to distinguish muscle activation depending on the neurological disease [ 70 – 72 ]; for example, Nisticò and Vescio et al [ 73 , 74 ] showed that during rest tremor, the activation of antagonist muscles is synchronous in subjects with ET and alternating in those with PD. EMG and accelerometer/IMU combinations [ 75 – 83 ] have been extensively used to discriminate PD, ET [ 84 – 89 ], physiological tremor (PH) [ 90 , 91 ], psychogenic tremor [ 92 , 93 ], advanced ET [ 94 ], and MS [ 95 ] from each other by using ML techniques on DWT and HT signal decomposition during, in its majority, stretch and steady positions. MMG [ 96 ] was recently used with EMG, force sensors, and IMUs to detect tremor differences in PD after deep brain stimulation [ 97 ].…”

Section: Technologies For Tremor Assessmentmentioning

confidence: 99%

Upper limb intention tremor assessment: opportunities and challenges in wearable technology

Paredes-Acuna,

Utpadel-Fischler,

Ding

et al. 2024

J NeuroEngineering Rehabil

View full text Add to dashboard Cite

Background Tremors are involuntary rhythmic movements commonly present in neurological diseases such as Parkinson's disease, essential tremor, and multiple sclerosis. Intention tremor is a subtype associated with lesions in the cerebellum and its connected pathways, and it is a common symptom in diseases associated with cerebellar pathology. While clinicians traditionally use tests to identify tremor type and severity, recent advancements in wearable technology have provided quantifiable ways to measure movement and tremor using motion capture systems, app-based tasks and tools, and physiology-based measurements. However, quantifying intention tremor remains challenging due to its changing nature. Methodology & Results This review examines the current state of upper limb tremor assessment technology and discusses potential directions to further develop new and existing algorithms and sensors to better quantify tremor, specifically intention tremor. A comprehensive search using PubMed and Scopus was performed using keywords related to technologies for tremor assessment. Afterward, screened results were filtered for relevance and eligibility and further classified into technology type. A total of 243 publications were selected for this review and classified according to their type: body function level: movement-based, activity level: task and tool-based, and physiology-based. Furthermore, each publication's methods, purpose, and technology are summarized in the appendix table. Conclusions Our survey suggests a need for more targeted tasks to evaluate intention tremors, including digitized tasks related to intentional movements, neurological and physiological measurements targeting the cerebellum and its pathways, and signal processing techniques that differentiate voluntary from involuntary movement in motion capture systems.

show abstract

Psychogenic tremor disorders identified using tree‐based statistical algorithms and quantitative tremor analysis

Cited by 18 publications

References 21 publications

Distinguishing psychogenic and essential tremor

Distinguishing psychogenic and essential tremor

Tremor: Clinical Phenomenology and Assessment Techniques

Upper limb intention tremor assessment: opportunities and challenges in wearable technology

Contact Info

Product

Resources

About