Confidence predicts speed-accuracy tradeoff for subsequent decisions
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Confidence predicts speed-accuracy tradeoff for subsequent decisions. / Desender, Kobe; Boldt, Annika; Verguts, Tom; Donner, Tobias H.
in: ELIFE, Jahrgang 8, 20.08.2019.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Confidence predicts speed-accuracy tradeoff for subsequent decisions
AU - Desender, Kobe
AU - Boldt, Annika
AU - Verguts, Tom
AU - Donner, Tobias H
N1 - © 2019, Desender et al.
PY - 2019/8/20
Y1 - 2019/8/20
N2 - When external feedback about decision outcomes is lacking, agents need to adapt their decision policies based on an internal estimate of the correctness of their choices (i.e., decision confidence). We hypothesized that agents use confidence to continuously update the tradeoff between the speed and accuracy of their decisions: When confidence is low in one decision, the agent needs more evidence before committing to a choice in the next decision, leading to slower but more accurate decisions. We tested this hypothesis by fitting a bounded accumulation decision model to behavioral data from three different perceptual choice tasks. Decision bounds indeed depended on the reported confidence on the previous trial, independent of objective accuracy. This increase in decision bound was predicted by a centro-parietal EEG component sensitive to confidence. We conclude that internally computed neural signals of confidence predict the ongoing adjustment of decision policies.
AB - When external feedback about decision outcomes is lacking, agents need to adapt their decision policies based on an internal estimate of the correctness of their choices (i.e., decision confidence). We hypothesized that agents use confidence to continuously update the tradeoff between the speed and accuracy of their decisions: When confidence is low in one decision, the agent needs more evidence before committing to a choice in the next decision, leading to slower but more accurate decisions. We tested this hypothesis by fitting a bounded accumulation decision model to behavioral data from three different perceptual choice tasks. Decision bounds indeed depended on the reported confidence on the previous trial, independent of objective accuracy. This increase in decision bound was predicted by a centro-parietal EEG component sensitive to confidence. We conclude that internally computed neural signals of confidence predict the ongoing adjustment of decision policies.
KW - Adolescent
KW - Adult
KW - Behavior
KW - Decision Making
KW - Female
KW - Humans
KW - Male
KW - Models, Neurological
KW - Self Concept
KW - Time
KW - Young Adult
U2 - 10.7554/eLife.43499
DO - 10.7554/eLife.43499
M3 - SCORING: Journal article
C2 - 31429827
VL - 8
JO - ELIFE
JF - ELIFE
SN - 2050-084X
ER -