Asymmetry in Object Substitution Masking Occurs Relative to the Direction of Spatial Attention Shift

Autor/inn/en	Hirose, Nobuyuki; Osaka, Naoyuki
Titel	Asymmetry in Object Substitution Masking Occurs Relative to the Direction of Spatial Attention Shift
Quelle	In: Journal of Experimental Psychology: Human Perception and Performance, 36 (2010) 1, S.25-37 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0096-1523
DOI	10.1037/a0017165
Schlagwörter	Visual Perception; Attention Control; Spatial Ability; Hypothesis Testing; Task Analysis; Experimental Psychology; Graduate Students; Undergraduate Students; Identification; Color; Statistical Analysis; Alphabets; Japan + Suchen Sie Ihr Suchwort? Visuelle Wahrnehmung; Aufmerksamkeitstest; Räumliches Vorstellungsvermögen; Hypothesenprüfung; Hypothesentest; Aufgabenanalyse; Experimentelle Psychologie; Graduate Study; Student; Students; Aufbaustudium; Graduiertenstudium; Hauptstudium; Studentin; Identifikation; Identifizierung; Colour; Farbbezeichnung; Farbe; Statistische Analyse; Buchstabenschrift
Abstract	A sparse mask that persists beyond the duration of a target can reduce its visibility, a phenomenon called "object substitution masking". Y. Jiang and M. M. Chun (2001a) found an asymmetric pattern of substitution masking such that a mask on the peripheral side of the target caused stronger substitution masking than on the central side. Assuming spatial attention was focused toward the target, the peripheral and central masks were located in the same and opposite direction of an attentional path with reference to the target in their study. We hypothesized that this asymmetric mask configuration relative to the attentional shift contributes to asymmetric substitution masking. To test this hypothesis, we conducted four experiments among which the presence or absence of the center-periphery relationship and the presence or absence of the asymmetric mask configuration were manipulated independently and orthogonally. The results suggest that asymmetric substitution masking occurs relative to the direction of spatial attention irrespective of the central-peripheral relation. We propose that the asymmetry in substitution masking might be explained by attentional momentum associated with orienting toward the target. (Contains 4 footnotes, 1 table, and 11 figures.) (As Provided).
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Update	2017/4/10