18 Questions 40 Answers 0 Followers
Questions related from Fernando A. Marengo Rodriguez
Hi all, I have some important results of HRV biofeedback training, and I would like to publish them in a free journal or website for scientists. Do you recommend any options for this? Thank...
10 September 2024 1,152 2 View
Hi all, I was wondering if there's any wearable easy to buy where I can have access to the PPG data in realtime for further processing. Does anyone know about this? Thank you very much in...
04 November 2023 9,823 0 View
Hi all, We developed a device for HRV biofeedback training. Which simple procedure do you recommend to assess it? Thanks! Fernando
16 August 2023 7,336 1 View
Hi all, I was wondering if there is any study about Yoga or Pranayama practices and its benefits over heart rate variability. It's very important for my current study. Any help is greatly...
15 May 2023 8,668 4 View
Dear all, I have an HRV biofeedback device that measures RMSSD, and want to test it for reducing anxiety, depression and stress. Which protocol do you recommend to implement? Thanks!
02 April 2023 1,732 1 View
Hi everyone, I am researching about different devices that perform HRV (heart rate variability) biofeedback (iom2, emWave, elite HRV, etc.). Unfortunately, I haven't found any comparative study...
08 November 2022 3,289 3 View
Dear all, I would like to evaluate the performance of some commercial devices that measure the HRV. One of them is Unyte iom2: https://integratedlistening.com/iom2/ The other on is...
25 May 2022 9,758 2 View
Dear all, I want to measure mental stress through HRV (from PPG data) for biofeedback purposes, in real time. Which method do you recommend for HRV measurement and which is the minimum time...
22 April 2021 5,927 1 View
Dear Community, I am measuring heart beats through a PPG signal in realtime. So far I processed the raw PPG with a bandpass filter in the range [0.4, 4] Hz. Then, a peak detection algorithm was...
02 February 2021 653 4 View
Dear all, We are performing some tests using the ADS1299 front-end, and want to measure EEG in Fp1 (above my left eyebrow). Reference and GND are in the left earlobe. How can the relaxation and...
20 May 2020 4,270 7 View
Dear all, I am using the pulse sensor, a low cost device for PPG detection in the index finger https://pulsesensor.com/ Although I am quite still, the detected signals are heavily corrupted with...
12 June 2019 3,530 6 View
Dear all, I am interested in processing PPG signals with the least possible delay. The high-frequency noise should be removed. Then, the local maxima, local minima and DC component should be...
21 September 2017 8,060 4 View
Dear all, I need to measure the respiratory rate, and I think it could be done by means of accelerometer located at the waist. Which accelerometer do you recommend, please? Thank you very much in...
11 April 2016 7,805 9 View
Dear all, Could you please tell me if there is a mathematical model for the power-line interference a(n)*cos(phi(n))? I've found a statistical model for the frequency, but not for the...
19 March 2015 2,401 3 View
I want to simulate EEG data for different experimental conditions, and different sampling rates (from 200 Hz up to 2 kHz). Which mathematical model is used for their simulation? Thank you very...
29 October 2014 2,954 6 View
Dear all,I am looking for a free speech to text (STT) software for writing technical documents (BSc, MSc, PhD, etc). I've found a list here:...
22 September 2014 1,151 9 View
Dear all,I am searching an application of the empirical mode decomposition (EMD) for estimating harmonic interference. Such interference is inmersed in wideband noise. Is there any paper or method...
27 August 2014 6,854 1 View
There are many algorithms for computing the EMD of a given signal, such as those developed by Flandrin and Huang. An important drawback of EMD is its computational load, which increments for...
29 September 2011 9,205 10 View
