How Does Attention Select and Track Spatially Extended Objects? New Effects of Attentional Concentration and Amplification

Autor/inn/en	Alvarez, George A.; Scholl, Brian J.
Titel	How Does Attention Select and Track Spatially Extended Objects? New Effects of Attentional Concentration and Amplification
Quelle	In: Journal of Experimental Psychology: General, 134 (2005) 4, S.461-476 (16 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0096-3445
Schlagwörter	Attention; Experiments; Visual Perception; Experimental Psychology; Spatial Ability; Motion + Suchen Sie Ihr Suchwort? Aufmerksamkeit; Erprobung; Visuelle Wahrnehmung; Experimentelle Psychologie; Räumliches Vorstellungsvermögen; Bewegungsablauf
Abstract	Real-world situations involve attending to spatially extended objects, often under conditions of motion and high processing load. The present experiments investigated such processing by requiring observers to attentionally track a number of long, moving lines. Concurrently, observers responded to sporadic probes as a measure of the distribution of attention across the lines. The results revealed that attention is concentrated at the centers of lines during tracking, despite their uniformity, and that this center advantage grew as the lines became longer: Not only did observers get worse near the endpoints, but they became better at the lines' centers, as if attention became more concentrated as the objects became more extended. These results begin to show how attention is flexibly allocated in online visual processing to extended dynamic objects. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10