Lisa G. Huettel

  • Citations Per Year
Learn More
Signal processing algorithms for hand-held mine detection sensors are described. The goals of the algorithms are to provide alarms to a human operator indicating the likelihood of the presence of a buried mine. Two modes of operations are considered: search mode and discrimination mode. Search mode generates an initial detection at a suspected location and(More)
In order to develop improved remediation techniques for hearing impairment, auditory researchers must gain a greater understanding of the relation between the psychophysics of hearing and the underlying physiology. One approach to studying the auditory system has been to design computational auditory models that predict neurophysiological data such as(More)
Collecting and analyzing psychophysical data is a fundamental mechanism for the study of auditory processing. However, because this approach relies on human listening experiments, it can be costly in terms of time and money spent gathering the data. The development of a theoretical, model-based procedure capable of accurately predicting psychophysical(More)
Interpretation of psychophysical data from impaired-hearing individuals on intensity discrimination tasks has been confounded by the fact that some impaired individuals' performance is near-normal in quiet, whereas for others, the difference limen is elevated. It has been observed that a subject's discrimination abilities may be related to the underlying(More)
In this paper, we have investigated the differences between normal and impaired auditory processing for a frequency discrimination task by analyzing the responses of a computational auditory model using signal detection theory. Two detectors, one using all of the information in the signal, the other using only the number of neural responses, were(More)
The effect of cochlear hearing loss on intensity discrimination has been experimentally investigated and reported in the literature. It has been observed that the impairment configuration has a significant effect on a subject's discrimination abilities. In some cases, intensity discrimination for an impaired individual is near-normal at equal SPLs, whereas(More)
The Department of Electrical and Computer Engineering at Duke University has completed a fullscale redesign of its undergraduate program based on the theme of Integrated Sensing and Information Processing. This theme provides a coherent, overarching framework that links principles of ECE to each other and to real-world engineering problems. The cornerstone(More)