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Accuracy, errors and illusions in un...

Bond, Tamara L.

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Accuracy, errors and illusions in unimodal and bimodal vehicular motion tracking: An ecologically based evaluation of multimodal enhancement and the dynamic capture effect.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Accuracy, errors and illusions in unimodal and bimodal vehicular motion tracking: An ecologically based evaluation of multimodal enhancement and the dynamic capture effect./
Author:	Bond, Tamara L.
Description:	145 p.
Notes:	Adviser: Randolph Easton.
Contained By:	Dissertation Abstracts International67-02B.
Subject:	Psychology, Behavioral. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3207068
ISBN:	9780542538605

Accuracy, errors and illusions in unimodal and bimodal vehicular motion tracking: An ecologically based evaluation of multimodal enhancement and the dynamic capture effect.
Bond, Tamara L.

Accuracy, errors and illusions in unimodal and bimodal vehicular motion tracking: An ecologically based evaluation of multimodal enhancement and the dynamic capture effect. - 145 p.

Adviser: Randolph Easton.

Thesis (Ph.D.)--Boston College, 2006.

Research has not adequately addressed whether stimuli in motion follow the same binding rules, or use the same neural pathways, for the perception of a unified multimodal object as stationary stimuli, despite the ecological relevance of moving stimuli. The paradigms presented herein examine overall ability and individual differences in the accurate detection, localization and optimal use of dynamic multisensory signatures. All paradigms involve the concept of a pedestrian attempting to localize and track vehicles. Experiment 1 examines the unique contribution of audition and vision to street crossing safety and the identification of usable gaps in traffic. The findings reveal that although auditory and visual information can provide sufficient information to identify physical gaps in traffic, there is a marked advantage for individuals with access to both auditory and visual information. Experiments 2 and 3 are aimed at understanding the nature of this advantage, and whether it results from (1) auditory information acting to alert the perceiver to the presence of an object thereby ensuring object detection, or (2) a behavioral enhancement in localization ability as a result of sensory stimulation in multiple modalities. In both experiments 2 and 3, two-thirds of participants failed to identify the presence of directionally conflicting bimodal stimuli, indicating that the dynamic capture effect of visual information on auditory information can be particularly salient with respect to ecologically valid stimuli. Accuracy for identifying the direction of travel, for a single moving vehicle, was near or at ceiling for unimodal visual and multimodal stimuli. Unimodal auditory information also allowed individuals to identify the direction of travel but accuracy was much lower compared to unimodal visual and directionally matched bimodal stimuli. Additionally, experiments 2 and 3 provided behavioral evidence for the existence of multimodal enhancement for the localization of objects in motion. Although unimodal auditory information generally resulted in inferior performance compared to unimodal visual information, the same auditory information improved performance when provided in addition to visual information.

ISBN: 9780542538605Subjects--Topical Terms:

1017677
Psychology, Behavioral.

Accuracy, errors and illusions in unimodal and bimodal vehicular motion tracking: An ecologically based evaluation of multimodal enhancement and the dynamic capture effect.
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245 1 0 $a Accuracy, errors and illusions in unimodal and bimodal vehicular motion tracking: An ecologically based evaluation of multimodal enhancement and the dynamic capture effect.
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500 $a Source: Dissertation Abstracts International, Volume: 67-02, Section: B, page: 1175.
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