Two experiments were performed involving the concurrent presentation to human subjects of two messages, one auditory, and one visual, followed by a question requiring information from both messages. The results indicated that bimodally-presented information can be integrated for decision making. However, there was no evidence of an advantage to bimodal presentation as a means of unburdening an overloaded sense. The implications of the results for displays and communications in complex control centers are discussed and directions for future research are suggested.
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https://aes2.org/publications/elibrary-page/?id=1048
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