Macquarie University
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Wireless physiological signal acquisition system

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posted on 2022-03-28, 14:43 authored by Thomas Meggitt
Early detection of hearing difficulties in infants is pivotal to their growth and development in later stages of life. Cortical Auditory Evoked Potentials (CAEP) testing is used to determine the hearing thresholds of non-responsive patients such as infants. In this research thesis a method to wirelessly transmit various segments of the CAEP test system is devised and a prototype is developed that will utilise offline processing. The thesis will anlyse the effect of the wireless system on on the accuracy of the test due to electromagnetic interference caused by the transmission of the signals. The thesis will draw upon comparisons with current leading systems to aid in the analysis of results. The thesis results show the CAEP test can be successfully conducted using a wireless system utilising offline processing to present results. The results also show there is a presence of electromagnetic interference in the recordings, however due to the current processing the interference will only be present in the processed response if two conditions are met: firstly, if the transmission frequency is less than 30Hz, and secondly, if the transmission is time locked to the stimulus presentation. Further research is recommended in the areas of user ability and reliability in the system.


Table of Contents

1. Introduction -- 2. Background and related work -- 3. Prototype development -- 4. Experimental procedure -- 5. Results and discussion -- 6. Conclusions -- 7. Future work -- 8. Abbreviations -- Appendices -- Bibliography.


Empirical thesis. Bibliography: pages 89-91

Awarding Institution

Macquarie University

Degree Type

Thesis bachelor honours


BSc (Hons), Macquarie University, Faculty of Science and Engineering, School of Engineering

Department, Centre or School

School of Engineering

Year of Award


Principal Supervisor

Oya Sevimli

Additional Supervisor 1

Teck Loi


Copyright Thomas Meggitt 2016. Copyright disclaimer:




1 online resource (xv, 91 pages colour illustrations)

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