Collective Enumeration

Autor/inn/en	Bahrami, Bahador; Didino, Daniele; Frith, Chris; Butterworth, Brian; Rees, Geraint
Titel	Collective Enumeration
Quelle	In: Journal of Experimental Psychology: Human Perception and Performance, 39 (2013) 2, S.338-347 (10 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0096-1523
DOI	10.1037/a0029717
Schlagwörter	Decision Making; Computation; Group Dynamics; Psychological Characteristics; Feedback (Response); Verbal Communication; Accuracy; Socialization; Models; Motivation; Social Influences + Suchen Sie Ihr Suchwort? Decision-making; Entscheidungsfindung; Gruppendynamik; Socialisation; Sozialisation; Analogiemodell; psychologische; Motivation (psychologisch); Sozialer Einfluss
Abstract	Many joint decisions in everyday life (e.g., Which bar is less crowded?) depend on approximate enumeration, but very little is known about the psychological characteristics of counting together. Here we systematically investigated collective approximate enumeration. Pairs of participants made individual and collective enumeration judgments in a 2-alternative forced-choice task and when in disagreement, they negotiated joint decisions via verbal communication and received feedback about accuracy at the end of each trial. The results showed that two people could collectively count better than either one alone, but not as well as expected by previous models of collective sensory decision making in more basic perceptual domains (e.g., luminance contrast). Moreover, such collective enumeration benefited from prior, noninteractive practice showing that social learning of how to combine shared information about enumeration required substantial individual experience. Finally, the collective context had a positive but transient impact on an individual's enumeration sensitivity. This transient social influence may be explained as a motivational factor arising from the fact that members of a collective must take responsibility for their individual decisions and face the consequences of their judgments. (Contains 4 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10