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Analysis of various fractional order derivatives approaches in assessment of graphomotor difficulties
(IEEE Access. 2020 Dec 4; 8:218234-218244, 2020-12-04)Graphomotor disabilities (GD) are present in up to 30% of school-aged children and are associated with several symptoms in the field of kinematics. Although the basic kinematic features such as velocity, ... -
Advanced parametrization of graphomotor difficulties in school-aged children
(IEEE Acces. 2020 Jun 17;8:112883-112897, 2020-06-17)School-aged children spend 31–60% of their time at school performing handwriting, which is a complex perceptual-motor skill composed of a coordinated combination of fine graphomotor movements. As up to ... -
Handwriting biometrics: applications and future trends in e-security and e-health
(Cognitive Computation. 2020;12;940–953, 2020)Online handwritten analysis presents many applications in e-security, signature biometrics being the most popular but not the only one. Handwriting analysis also has an important set of applications in ... -
On the analysis of speech and disfluencies for automatic detection of Mild Cognitive Impairment
(Neural Computing and Applications. 2020;32:15761–15769, 2018-05-08)Alzheimer’s disease is characterized by a progressive and irreversible cognitive deterioration. In a previous stage, the so-called Mild Cognitive Impairment or cognitive loss appears. Nevertheless, this ... -
Comparison of CNN-learned vs. handcrafted features for detection of Parkinson's disease dysgraphia in a multilingual dataset
(Frontiers in Neuroinformatics. 2022;(16):877139, 2022)Parkinson’s disease dysgraphia (PDYS), one of the earliest signs of Parkinson’s disease (PD), has been researched as a promising biomarker of PD and as the target of a noninvasive and inexpensive ... -
Reliability and validity of the Polar V800 sports watch for estimating vertical jump height
(Journal of Sports Science and Medicine. 2021;(20):149-157, 2021)This study aimed to assess the reliability and validity of the Polar V800 to measure vertical jump height. Twenty-two physically active healthy men (age: 22.89 ± 4.23 years; body mass: 70.74 ± 8.04 kg; ... -
On handwriting pressure normalization for interoperability of different acquisition stylus
(IEEE Access. 2021 Jan 21;9:18443-18453, 2021-01-21)In this paper, we present a pressure characterization and normalization procedure for online handwritten acquisition. Normalization process has been tested in biometric recognition experiments (identification ... -
Mood state detection in handwritten tasks using PCA–mFCBF and automated machine learning
(Sensors. 2022 Feb 21;22(4):1686, 2022 Feb 2)In this research, we analyse data obtained from sensors when a user handwrites or draws on a tablet to detect whether the user is in a specific mood state. First, we calculated the features based on the ... -
Exploiting spectral and cepstral handwriting features on diagnosing parkinson’s disease
(IEEE Access. 2021 Oct 22;(9):141599-141610, 2021-10-22)Parkinson’s disease (PD) is the second most frequent neurodegenerative disease associated with several motor symptoms, including alterations in handwriting, also known as PD dysgraphia. Several computerized ... -
Emotional state recognition performance improvement on a handwriting and drawing task
(IEEE Access. 2021 Feb 23;(9):28496-28504, 2021-02-21)In this work we combine time, spectral and cepstral features of the signal captured in a tablet to characterize depression, anxiety, and stress emotional state recognition on the EMOTHAW database. EMOTHAW ... -
Analysis of fine motor skills in essential tremor: combining neuroimaging and handwriting biomarkers for early management
(Frontiers in Human Neuroscience. 2021 Jun 8;15:648573, 2021-06-08)Essential tremor (ET) is a highly prevalent neurological disorder characterized by actioninduced tremors involving the hand, voice, head, and/or face. Importantly, hand tremor is present in nearly all ...