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Article
Peer-Review Record

Assessing Cognitive Workload Using Cardiovascular Measures and Voice

Sensors 2022, 22(18), 6894; https://doi.org/10.3390/s22186894
by Eydis H. Magnusdottir 1, Kamilla R. Johannsdottir 1, Arnab Majumdar 2 and Jon Gudnason 1,*
Reviewer 1:
Reviewer 2: Anonymous
Reviewer 3: Anonymous
Sensors 2022, 22(18), 6894; https://doi.org/10.3390/s22186894
Submission received: 30 June 2022 / Revised: 1 September 2022 / Accepted: 5 September 2022 / Published: 13 September 2022
(This article belongs to the Special Issue Biomedical Signal and Image Processing in Speech Analysis)

Round 1

Reviewer 1 Report

   


This paper proposes a new method of using deep neural networks in order to reduce ECG signals dedicated to portable monitoring applications. The novelty of the method consists in ensuring the quality of the ECG signals reconstructed by a binary convolutional auto-encoder (BCAE) equipped with residual error compensation (REC) was proposed.

The approaches topic is new because the emphasis is on the quality of the reconstructed signal and provides a block of analysis and correction of errors.

The paper is well structured, the conclusions are consistent with the results presented and the appropriate and correct references. 

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Reviewer 2 Report


Comments for author File: Comments.pdf

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Reviewer 3 Report

In this paper, a method that combines the speech signal with cardiovascular measurements for screen and heartbeat classification is introduced. For validation, speech and cardiovascular signals from 97 universities and 20 airline pilot participants were collected while cognitive stimuli of varying difficulty level were induced with the Stoop colour/word test. I think the points of this article is interesting, but still need to be refined. The specific suggestions are as follows:

 

1.       How is the OSPAN task mentioned in Figure 1 performed in this experiment? Please describe briefly.

2.       The title and abstract of the thesis talk about the combination of cardiovascular measurement and voice, but the conclusion is the combination of psychophysiological measures, the speech signal and cardiovascular measures. This is inconsistent.

3.       The Discussion section is too bloated, and relevant studies should not appear here.

4.  This paper only demonstrates the potential of using a combination of psychophysiological measures, speech signals and cardiovascular measures to measure and monitor cognitive workload, please add comparison experiments with state-of-the-art methods in this direction.

5.  A new feature-level fusion method between non-invasive cardiovascular measurement and speech proposed in Section 3.3, but the principle of fusion and the novelty of this fusion method are not mentioned in the specific description that follows, please add an explanation.

 

6.    Use OSpan sometimes (168 lines) and OSPAN sometimes (Figure 1)in the paper. Please use uniform and standard writing.

 

7.   In the 7th line of the Abstract, "signals from 97 university", please check the full text to avoid such grammatical errors.

Comments for author File: Comments.pdf

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Round 2

Reviewer 3 Report

I appreciate the idea of this paper and can be accepted in present form.

Author Response

Thank you for your thorough and helpful review.

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