The timing of confidence computations in human prefrontal cortex

被引:5
作者
Xue, Kai [1 ,2 ]
Zheng, Yunxuan [1 ]
Rafiei, Farshad [1 ]
Rahnev, Dobromir [1 ]
机构
[1] Georgia Inst Technol, Sch Psychol, Atlanta, GA USA
[2] 831 Marietta Str NW, Atlanta, GA 30318 USA
关键词
Confidence; DLPFC; Metacognition; Perceptual decision making; TMS; TRANSCRANIAL MAGNETIC STIMULATION; MODELING CONFIDENCE; SIGNAL-DETECTION; MEMORY; METACOGNITION; PARIETAL; CHOICE; TIME; TMS;
D O I
10.1016/j.cortex.2023.08.009
中图分类号
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要
Knowing when confidence computations take place is critical for building a mechanistic understanding of the neural and computational bases of metacognition. Yet, even though a substantial amount of research has focused on revealing the neural correlates and computations underlying human confidence judgments, very little is known about the timing of confidence computations. To understand when confidence is computed, we delivered single pulses of transcranial magnetic stimulation (TMS) at different times after stimulus presentation while subjects judged the orientation of a briefly presented visual stimulus and provided a confidence rating. TMS was delivered to either the right dorsolateral prefrontal cortex (DLPFC) in the experimental group or to vertex in the control group. We found that TMS to right DLPFC, but not to vertex, led to increased confidence in the absence of changes to accuracy or metacognitive efficiency. Critically, equivalent levels of confidence increase occurred for TMS delivered between 200 and 500 msec after stimulus presentation. These results suggest that confidence computations occur during a broad window that begins before the perceptual decision has been fully made and thus provide important constraints for theories of confidence generation.(c) 2023 Elsevier Ltd. All rights reserved.
引用
收藏
页码:167 / 175
页数:9
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