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Engineering in Medicine and Biology Magazine, IEEE

Issue 1 • Date March 1988

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Displaying Results 1 - 3 of 3
  • Measures of speech production

    Page(s): 30 - 33
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (547 KB)  

    The author discusses the mechanisms of speech production, focusing on the measurement of its motor aspects. He examines the multiple representation levels at which physiological events that underlie speech production can be investigated, and examines measurement of neuromuscular activity, structure movement (e.g. kinematics and dynamics), aerodynamic phenomena, and/or the acoustic output. He describes two general approaches. Studies can focus on one system and obtain data at multiple levels; for example, simultaneous recording of EMG (electromyogram) and/or kinematic signals, as well as the acoustic signal; this permits comprehensive assessment of physiologic events within a particular system. Alternatively, studies can obtain recordings of the acoustic signal simultaneously with EMG and/or kinematic signals taken from several systems; this permits assessment of the organization of physiologic events within, as well as between, systems. The author illustrates these methods in a study of stuttering.<> View full abstract»

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  • The application of a coherent image processor to the enhancement of radiological images

    Page(s): 34 - 38
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (781 KB)  

    Results of the investigation of the viability of using a coherent optical processor to improve image quality prior to digitization and analysis are presented. Optical processing of small (20 mm*20 mm) and large (100 mm*100 mm) radiological images to improve contrast and enhance edges is demonstrated. A brief summary of the principle of operation of the coherent optical processor is given. Results obtained with the apparatus described here are presented and discussed.<> View full abstract»

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  • Electrical injury: understanding the body's response

    Page(s): 39 - 40
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    Studies of electrical injury are described in which the electrical field associated with the current is shown to be a source of damage, in addition to heat. It is shown that this result explains clinical observations that connective tissue is not harmed during electrical accidents, while skeletal muscles are destroyed. The researchers identified three cell categories, exhibiting three distinct types of response to the electric field.<> View full abstract»

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Aims & Scope

IEEE Engineering in Medicine and Biology Magazine contains articles on current technologies and methods used in biomedical and clinical engineering.

 

This Magazine ceased publication in 2010. The current retitled publication is IEEE Pulse.

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