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David R. Perrott

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Publications by David R. Perrott (bibliography)

1999

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Saberi, K. and Perrott, David R. (1999): Cognitive restoration of reversed speech. In Nature, 398 pp. 760-761.

1995

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Perrott, David R., Cisneros, John, McKinley, Richard L. and D'Angelo, William R. (1995): Aurally Aided Detection and Identification of Visual Targets. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 104-108.

“The experiments described in this report provide baseline performance measures of aurally directed detection and search for visual targets in an observer's immediate space. While the simple target detection task was restricted to the frontal hemi-field (extending 180 degrees in azimuth and 150 degrees in elevation), visual search performance (discrimination of which of two light arrays was present on a given trial) was evaluated for both the frontal and rear hemi-fields. In both tasks, the capacity to process information from the visual channel was improved substantially (a 10-50 percent reduction in latency) when spatial information from the auditory modality was provided concurrently. While performance gains were greatest for events in the rear hemi-field and in the peripheral regions of the frontal hemi-field, significant effects were also evident for events within the subject's central visual field. The relevance of these results to the development of virtual 3-D sound systems is discussed.”

1988

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Perrott, David R. (1988): Auditory Psychomotor Coordination. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 81-85.

“A series of choice-reaction time experiments are described in which subjects were required to locate and identify the information contained on a small visual target. Across trials, the lateral position of the target was randomly varied across a 240-degree region (+ 120-degrees relative to the subject's initial line of gaze). The vertical position of the target was either fixed at 0-degrees elevation or varied by + 46-degrees. Whether the target was in the visual search period was evident when an acoustic signal indicated the location of the visual target. Auditory spatial information was particularly effective in improving performance when the position of the target was varied in elevation or the target was located in the rear field. The current results support the notion that the auditory system can be used to direct eye-head movements toward a remote visual target.”

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