Salience-controlled visual search: Are the brightest and the least bright targets found by different processes?

Autor:	Hans-Christoph Nothdurft
Rok vydání:	2006
Předmět:	Visual search Systematic difference Arts and Humanities (miscellaneous) Salience (neuroscience) Salient Cognitive Neuroscience Perception media_common.quotation_subject Experimental and Cognitive Psychology Cognition Psychology Social psychology media_common
Zdroj:	Visual Cognition. 13:700-732
ISSN:	1464-0716 1350-6285
DOI:	10.1080/13506280544000237
Popis:	It has been proposed that maximum and minimum targets (like the brightest or the least-bright item of a sample) are found by different search processes, the latter but not the former being sensitive to the withdrawal of focal attention. The present study could not establish such a systematic difference and suggests that variations in search performance are due to variations in target salience. Bright targets among dim distractors were generally more salient than dim targets among bright dis-tractors (Experiment 1). In both conditions, search performance was deteriorated when attention was withdrawn (Experiment 2). Performance became identical when maximum and minimum targets were matched in salience; this was also confirmed for dark items on bright background (Experiment 3). The data underline the importance of salience in visual search but do not support the assumption that maximum and minimum target searches are qualitatively different in their demands on focal attention. Salience and attention rather s...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b1ebb2837107cc21dab38f7562cbab21 https://doi.org/10.1080/13506280544000237 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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