In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 131, No. 4_Supplement ( 2012-04-01), p. 3513-3513
Kurzfassung:
As the number of elements that make up an auditory scene increases, it becomes harder to selectively attend just one of those elements. Previously, the limit of listeners' abilities to attend a target stream of repeating letters in an overcrowded scene was tested. In that experiment, each stream consisted of a repeated monotonized and localized spoken letter (an “item”), with a repetition period of 1 s. Among streams, item onset times were distributed across each repetition. Listeners were asked to detect when the attended target letter changed to an oddball “R” for a single repetition, ignoring such occurrences in the non-target streams. With a constant repetition period, adding streams to the stimulus meant that the number of items per second increased proportionally. The decrease in performance could thus be a result of having more streams in the scene, or because of the increased item rate. Here, a similar experiment was performed, holding the item rate constant, rather than the repetition period. The results allow us to disentangle the effects of the number of distractor streams and the item rate, yielding insight into the specific reasons for the diminished ability to selectively attend. Funded by USA-NIH-T32DC009975 (RKM) and R00DC010196 (AKCL).
Materialart:
Online-Ressource
ISSN:
0001-4966
,
1520-8524
Sprache:
Englisch
Verlag:
Acoustical Society of America (ASA)
Publikationsdatum:
2012
ZDB Id:
1461063-2
Permalink