Consumers can make decisions in as little as a third of a second

We make hundreds of decisions every day, many of them extremely quickly and without much explicit deliberation. This motivates two important open questions: What is the minimum time required to make choices with above chance accuracy? What is the impact of additional decision-making time on choice a...

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Main Authors: Milica Milosavljevic, Christof Koch, Antonio Rangel
Format: Article
Language:English
Published: Cambridge University Press 2011-08-01
Series:Judgment and Decision Making
Subjects:
Online Access:http://journal.sjdm.org/11/10420a/jdm10420a.pdf
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author Milica Milosavljevic
Christof Koch
Antonio Rangel
author_facet Milica Milosavljevic
Christof Koch
Antonio Rangel
author_sort Milica Milosavljevic
collection DOAJ
description We make hundreds of decisions every day, many of them extremely quickly and without much explicit deliberation. This motivates two important open questions: What is the minimum time required to make choices with above chance accuracy? What is the impact of additional decision-making time on choice accuracy? We investigated these questions in four experiments in which subjects made binary food choices using saccadic or manual responses, under either ``speed'' or ``accuracy'' instructions. Subjects were able to make above chance decisions in as little as 313 ms, and choose their preferred food item in over 70% of trials at average speeds of 404 ms. Further, slowing down their responses by either asking them explicitly to be confident about their choices, or to respond with hand movements, generated about a 10% increase in accuracy. Together, these results suggest that consumers can make accurate every-day choices, akin to those made in a grocery store, at significantly faster speeds than previously reported.
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spelling doaj.art-e2955a492269433faee5a7e8b24a24292023-08-02T01:51:45ZengCambridge University PressJudgment and Decision Making1930-29752011-08-0166520530Consumers can make decisions in as little as a third of a secondMilica MilosavljevicChristof KochAntonio RangelWe make hundreds of decisions every day, many of them extremely quickly and without much explicit deliberation. This motivates two important open questions: What is the minimum time required to make choices with above chance accuracy? What is the impact of additional decision-making time on choice accuracy? We investigated these questions in four experiments in which subjects made binary food choices using saccadic or manual responses, under either ``speed'' or ``accuracy'' instructions. Subjects were able to make above chance decisions in as little as 313 ms, and choose their preferred food item in over 70% of trials at average speeds of 404 ms. Further, slowing down their responses by either asking them explicitly to be confident about their choices, or to respond with hand movements, generated about a 10% increase in accuracy. Together, these results suggest that consumers can make accurate every-day choices, akin to those made in a grocery store, at significantly faster speeds than previously reported.http://journal.sjdm.org/11/10420a/jdm10420a.pdfconsumerchoicedecision-makinggrocery storespeedaccuracyeye-tracking.NAKeywords
spellingShingle Milica Milosavljevic
Christof Koch
Antonio Rangel
Consumers can make decisions in as little as a third of a second
Judgment and Decision Making
consumer
choice
decision-making
grocery store
speed
accuracy
eye-tracking.NAKeywords
title Consumers can make decisions in as little as a third of a second
title_full Consumers can make decisions in as little as a third of a second
title_fullStr Consumers can make decisions in as little as a third of a second
title_full_unstemmed Consumers can make decisions in as little as a third of a second
title_short Consumers can make decisions in as little as a third of a second
title_sort consumers can make decisions in as little as a third of a second
topic consumer
choice
decision-making
grocery store
speed
accuracy
eye-tracking.NAKeywords
url http://journal.sjdm.org/11/10420a/jdm10420a.pdf
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