Abstract
This study compared the ability of forty anaesthetists to judge absolute levels of oxygen saturation, directionof change, and size of change in saturation using auditory pitch and pitch difference in twolaboratory-based studies that compared a linear pitch scale with a logarithmic scale. In the former thedifferences in saturation become perceptually closer as the oxygenation level becomes higher whereas inthe latter the pitch differences are perceptually equivalent across the whole range of values. The resultsshow that anaesthetist participants produce significantly more accurate judgements of both absoluteoxygenation values and size of oxygenation level difference when a logarithmic, rather than a linear,scale is used. The line of best fit for the logarithmic function was also closer to x ¼ y than for the linearfunction. The results of these studies can inform the development and standardisation of pulse oximetrytones in order to improve patient safety.
Original language | English |
---|---|
Pages (from-to) | 350-357 |
Number of pages | 0 |
Journal | Applied Ergonomics |
Volume | 51 |
Issue number | 0 |
DOIs | |
Publication status | Published - 5 Jun 2015 |
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Brown, Z., Edworthy, J., Sneyd, J. R., & Schlesinger, J. (2015). A comparison of linear and logarithmic auditory tones in pulse oximeters. Applied Ergonomics, 51(0), 350-357. https://doi.org/10.1016/j.apergo.2015.06.006
Brown, Zoe ; Edworthy, Judy ; Sneyd, J. Robert et al. / A comparison of linear and logarithmic auditory tones in pulse oximeters. In: Applied Ergonomics. 2015 ; Vol. 51, No. 0. pp. 350-357.
@article{8f0587473afb4c91a63960685b17ba57,
title = "A comparison of linear and logarithmic auditory tones in pulse oximeters",
abstract = "This study compared the ability of forty anaesthetists to judge absolute levels of oxygen saturation, direction of change, and size of change in saturation using auditory pitch and pitch difference in two laboratory-based studies that compared a linear pitch scale with a logarithmic scale. In the former the differences in saturation become perceptually closer as the oxygenation level becomes higher whereas in the latter the pitch differences are perceptually equivalent across the whole range of values. The results show that anaesthetist participants produce significantly more accurate judgements of both absolute oxygenation values and size of oxygenation level difference when a logarithmic, rather than a linear, scale is used. The line of best fit for the logarithmic function was also closer to x ¼ y than for the linear function. The results of these studies can inform the development and standardisation of pulse oximetry tones in order to improve patient safety.",
author = "Zoe Brown and Judy Edworthy and Sneyd, {J. Robert} and Joseph Schlesinger",
year = "2015",
month = jun,
day = "5",
doi = "10.1016/j.apergo.2015.06.006",
language = "English",
volume = "51",
pages = "350--357",
journal = "Applied Ergonomics",
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Brown, Z, Edworthy, J, Sneyd, JR & Schlesinger, J 2015, 'A comparison of linear and logarithmic auditory tones in pulse oximeters', Applied Ergonomics, vol. 51, no. 0, pp. 350-357. https://doi.org/10.1016/j.apergo.2015.06.006
A comparison of linear and logarithmic auditory tones in pulse oximeters. / Brown, Zoe; Edworthy, Judy; Sneyd, J. Robert et al.
In: Applied Ergonomics, Vol. 51, No. 0, 05.06.2015, p. 350-357.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - A comparison of linear and logarithmic auditory tones in pulse oximeters
AU - Brown, Zoe
AU - Edworthy, Judy
AU - Sneyd, J. Robert
AU - Schlesinger, Joseph
PY - 2015/6/5
Y1 - 2015/6/5
N2 - This study compared the ability of forty anaesthetists to judge absolute levels of oxygen saturation, directionof change, and size of change in saturation using auditory pitch and pitch difference in twolaboratory-based studies that compared a linear pitch scale with a logarithmic scale. In the former thedifferences in saturation become perceptually closer as the oxygenation level becomes higher whereas inthe latter the pitch differences are perceptually equivalent across the whole range of values. The resultsshow that anaesthetist participants produce significantly more accurate judgements of both absoluteoxygenation values and size of oxygenation level difference when a logarithmic, rather than a linear,scale is used. The line of best fit for the logarithmic function was also closer to x ¼ y than for the linearfunction. The results of these studies can inform the development and standardisation of pulse oximetrytones in order to improve patient safety.
AB - This study compared the ability of forty anaesthetists to judge absolute levels of oxygen saturation, directionof change, and size of change in saturation using auditory pitch and pitch difference in twolaboratory-based studies that compared a linear pitch scale with a logarithmic scale. In the former thedifferences in saturation become perceptually closer as the oxygenation level becomes higher whereas inthe latter the pitch differences are perceptually equivalent across the whole range of values. The resultsshow that anaesthetist participants produce significantly more accurate judgements of both absoluteoxygenation values and size of oxygenation level difference when a logarithmic, rather than a linear,scale is used. The line of best fit for the logarithmic function was also closer to x ¼ y than for the linearfunction. The results of these studies can inform the development and standardisation of pulse oximetrytones in order to improve patient safety.
U2 - 10.1016/j.apergo.2015.06.006
DO - 10.1016/j.apergo.2015.06.006
M3 - Article
SN - 0003-6870
VL - 51
SP - 350
EP - 357
JO - Applied Ergonomics
JF - Applied Ergonomics
IS - 0
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Brown Z, Edworthy J, Sneyd JR, Schlesinger J. A comparison of linear and logarithmic auditory tones in pulse oximeters. Applied Ergonomics. 2015 Jun 5;51(0):350-357. doi: 10.1016/j.apergo.2015.06.006