- UHRA Home
- Browsing by Author
Browsing by Author "Steffert, Tony"
Now showing items 1-13 of 13
-
Beyond HRV. Extending the range of autonomic measures associated with heart rate variability – the effects of transcutaneous electroacupuncture (TEAS)
Mayor, David; Panday, Deepak; Steffert, Tony; Kandel, Hari Kala; Watson, Tim (2021-03-27)Background: Heart rate variability (HRV) is useful in acupuncture research as a measure of autonomic response. However, although it accurately reflects parasympathetic activity, there is less agreement on whether and how ... -
CEPS: An Open Access MATLAB Graphical User Interface (GUI) for the Analysis of Complexity and Entropy in Physiological Signals
Mayor, David; Panday, Deepak; Kandel, Hari Kala; Steffert, Tony; Banks, Duncan; Watson, Tim (2021-03-08)Background: We developed CEPS as an open access MATLAB® GUI (graphical user interface) for the analysis of Complexity and Entropy in Physiological Signals (CEPS), and demonstrate its use with an example data set that shows ... -
Changes in finger temperature and blood flow in response to different frequencies of transcutaneous electroacupuncture at LI4 (hegu)
Mayor, David; Steffert, Tony; Bhavsar, Ronakben; Watson, Tim (2015-03-21)Background. Finger blood flow and temperature are often used as indices of autonomic (sympathetic) function. Transcutaneous electroacupuncture (TEA) is an increasingly used variant of electroacupuncture (EA). This is the ... -
Classification of the Central Effects of Transcutaneous Electroacupuncture Stimulation (TEAS) at Different Frequencies: A Deep Learning Approach Using Wavelet Packet Decomposition with an Entropy Estimator
Uyulan, Çağlar; Mayor, David; Steffert, Tony; Watson, Tim; Banks, Duncan (2023-02-20)The field of signal processing using machine and deep learning algorithms has undergone significant growth in the last few years, with a wide scope of practical applications for electroencephalography (EEG). Transcutaneous ... -
Complexity and Entropy in Physiological Signals (CEPS): Resonance Breathing Rate Assessed Using Measures of Fractal Dimension, Heart Rate Asymmetry and Permutation Entropy
Mayor, David; Steffert, Tony; Datseris, George; Firth, Andrea; Panday, Deepak; Kandel, Harikala; Banks, Duncan (2023-02-06)Background: As technology becomes more sophisticated, more accessible methods of interpretating Big Data become essential. We have continued to develop Complexity and Entropy in Physiological Signals (CEPS) as an open ... -
The Correlation between EEG Signals as Measured in Different Positions on Scalp Varying with Distance
Bhavsar, Ronakben; Sun, Yi; Helian, Na; Davey, Neil; Mayor, David; Steffert, Tony (2018-02-03)Biomedical signals such as electroencephalogram (EEG) are the time varying signal, and different position of electrodes give different time varying signals. There might be a correlation between these signals. It is likely ... -
Does the cortical response to electroacupuncture depend on stimulation frequency? Results of a pilot EEG study first proposed at the AACP Conference in 2001
Steffert, Tony; Mayor, David; Watson, Tim (2013-05-19)EEG (electroencephalography) is a low-cost, accessible method of investigating electrical brain activity that is sensitive to rapid changes (unlike fMRI). Electroacupuncture (EA) and Transcutaneous Electrical Acupoint ... -
EEG and eyeblink response to different acupuncture modalities: some preliminary results from four exploratory pilot studies
Mayor, David; Steffert, Tony; Watson, Tim (2013-03-02)This poster describes early findings from our first pilot studies. Encephalography (EEG) records electrical activity on the scalp, and is useful for investigating rapidly changing cortical brain states. Eyeblink rate (EBR) ... -
Efficient Methods for Calculating Sample Entropy in Time Series Data Analysis
Bhavsar, Ronakben; Davey, Neil; Helian, Na; Sun, Yi; Steffert, Tony; Mayor, David (2018-12-11)Recently, different algorithms have been suggested to improve Sample Entropy (SE) performance. Although new methods for calculating SE have been proposed, so far improving the efficiency (computational time) of SE calculation ... -
Expectation and experience of the ‘nonspecific’ effects of acupuncture: Developing and piloting a set of questionnaires
Mayor, David; Steffert, Tony; Watson, Tim (2013-09-29)32-item ‘EXPectation of feelings’ questionnaires were developed to explore the expected (EXPre) and reported (EXPost) incidence of ‘nonspecific’ (whole person) feelings in response to acupuncture-type interventions, in ... -
The fickleness of data: Estimating the effects of different aspects of acupuncture treatment on heart rate variability (HRV). Initial findings from three pilot studies
Steffert, Tony; Mayor, David; Watson, Tim (2014-03-29)Heart rate variability (HRV) is a measure of the interplay between sympathetic and parasympathetic influences on heart rate. Higher HRV is usually associated with relaxation and health benefits, lower HRV with stress/pathology. ... -
Proceedings of Abstracts Engineering and Computer Science Research Conference 2019
Nwawe, Richard; Grasso, Marzio; CHEN, Yong Kang; Klusak, Jan; Rosiello, Vincenzo; Counsell, Nathan; Herfatmanesh, Mohammad Reza; Partou, Helen; Menon, Catherine; Barker, Trevor; Veneziano, Vito; Kirner, Raimund; Tveretina, Olga; Verma, Alok; Lane, Peter; Lilley, Mariana; Canoville, Paul; Robinson, Matthew; Crook, Brian; Hall, Samantha; Kaye, Richard; Johnston, Ian; McCluskey, Daniel; Tracey, Mark; Munro, Ian; Wang, Yuan; Suckow, Bjorn; Klaholz, Ingo; Drix, Damien; Hafner, Verena Vanessa; Schmuker, Michael; Sinha, Ankur; Metzner, Christoph; Davey, Neil; Adams, Roderick; Steuber, Volker; Miko, Rebecca; Toffe, Gilles; Ren, Guogang; Montalvão, Diogo; Ismail, Sikiru O.; Newman, James; Dhakal, Hom; Sunmola, Funlade; Panday, Deepak; Helian, Na; Amafabia, Daerefa-a; David-West, Opukuro; Haritos, George; Schirmer, Pascal; Mporas, Iosif; Skaltsas, Grigorios; Siadati, Rana; Wernick, Paul; Sutton, Samuel; Lekkala, Himayasri Rao; Sayers, Paul; Khan, Imran; Cañamero, Lola; Hassan, Eheda; Denai, Mouloud; Pissanidis, Georgios; Goncharenko, Julia; Schilstra, Maria; Beka, Nathan; te Boekhorst, Rene; Bonivart, Agnes; Nehaniv, Chrystopher; Kadir, Shabnam; Bhavsar, Ronakben; Sun, Yi; Mayor, David; Steffert, Tony; CHEN, Yong Kang; Chrysanthou, Andreas; Johnston, Ian; Kirner, Raimund; Kourtessis, Pandelis; McCluskey, Daniel; Polani, Daniel; Steuber, Volker; Sun, Yichuang (University of Hertfordshire, 2019-09-01)This book is the record of abstracts submitted and accepted for presentation at the Inaugural Engineering and Computer Science Research Conference held 17th April 2019 at the University of Hertfordshire, Hatfield, UK. This ... -
Time Series Analysis using Embedding Dimension on Heart Rate Variability
Bhavsar, Ronakben; Davey, Neil; Helian, Na; Sun, Yi; Steffert, Tony; Mayor, David (2018-12-11)Heart Rate Variability (HRV) is the measurement sequence with one or more visible variables of an underlying dynamic system, whose state changes with time. In practice, it is difficult to know what variables determine the ...