detection and identification (Dan Mapes-Riordan )

Subject: detection and identification
From:    Dan Mapes-Riordan  <dmapes(at)>
Date:    Tue, 13 Oct 1998 07:26:32 -0500

Pierre Divenyi wrote: >>I would venture pointing out that (as they have shown) identification >>and discrimination >>can be regarded as esentially identical processes. Dan Tollin wrote: >This is correct as detection and discrimination are simply special cases of >identification where the number of stimuli is two. If I may add a bit to this discussion, I would just like to point out that Hafter, Bonnel and Gallun recently presented data in which detection showed no decrement in performance during a divided attention task whereas identification did show a loss in performance (Hafter, Bonnel, and Gallun, Proceedings of the 16th ICA and 135th Meeting of ASA, 1567-1568 (1998)). Presumably, the identification mechanism used a limited attentional resource (e.g., memory) whereas detection did not. Dan Mapes-Riordan dmapes(at) McGill is running a new version of LISTSERV (1.8d on Windows NT). Information is available on the WEB at

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