Reduced choice-confidence in negative numerals
Ontology highlight
ABSTRACT:
SUBMITTER: Alonso-Diaz S
PROVIDER: S-EPMC9529092 | biostudies-literature | 2022 Jan
REPOSITORIES: biostudies-literature
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Project description:Although Arabic numerals (like '2016' and '3.14') are ubiquitous, we show that in interactive computer applications they are often misleading and surprisingly unreliable. We introduce interactive numerals as a new concept and show, like Roman numerals and Arabic numerals, interactive numerals introduce another way of using and thinking about numbers. Properly understanding interactive numerals is essential for all computer applications that involve numerical data entered by users, including finance, medicine, aviation and science.
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Project description:BackgroundUnderstanding factors in internal medicine (IM) resident career choice may reveal important needed interventions for recruitment and diversity in IM primary care and its subspecialties. Self-reported learner confidence is higher in men than in women in certain areas of practicing medicine, but has never been explored as a factor in career choice.ObjectiveThe purpose of this study is to elucidate associations between confidence, gender, and career choice.DesignIM residents completed a 31-item survey rating confidence in procedural, clinical, and communication skills on a 9-point Likert scale. Residents also reported anticipated career choice and rated influence of factors. Associations between gender and confidence scale scores, gender and career choice, and confidence and career choice were analyzed using t tests, ANOVA, and multiple linear regression controlled for postgraduate year (PGY), institution, and specialty choice.Participants292 IM residents at Northwestern and University of Texas (UT) Southwestern MAIN MEASURES: Resident gender, self-reported confidence, career choice KEY RESULTS: Response rate was 79.6% (n = 292), of them 50.3% women. Overall self-reported confidence increased with training (PGY-1 4.9 (1.1); PGY-2 6.2 (1.0); PGY-3 7.4 (1.0); p < 0.001). Men had higher confidence than women (men 6.6 (1.5); women 6.3 (1.4), p = 0.06), with the greatest difference in procedures. High confidence in men was associated with choice of procedural careers, whereas there was no association between confidence and career in women.ConclusionsThis is the first study demonstrating a gender difference in self-reported confidence and career choice. There is a positive correlation in men: higher self-reported confidence with procedural specialties, lower with general internal medicine. Women's self-reported confidence had no association. Further investigation is needed to elucidate causative factors for differences in self-reported confidence by gender, and whether alterations in level of self-reported confidence produce a downstream effect on career choice.
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Project description:It is well established that one's confidence in a choice can be influenced by new evidence encountered after commitment has been reached, but the processes through which post-choice evidence is sampled remain unclear. To investigate this, we traced the pre- and post-choice dynamics of electrophysiological signatures of evidence accumulation (Centro-parietal Positivity, CPP) and motor preparation (mu/beta band) to determine their sensitivity to participants' confidence in their perceptual discriminations. Pre-choice CPP amplitudes scaled with confidence both when confidence was reported simultaneously with choice, and when reported 1 second after the initial direction decision with no intervening evidence. When additional evidence was presented during the post-choice delay period, the CPP exhibited sustained activation after the initial choice, with a more prolonged build-up on trials with lower certainty in the alternative that was finally endorsed, irrespective of whether this entailed a change-of-mind from the initial choice or not. Further investigation established that this pattern was accompanied by later lateralisation of motor preparation signals toward the ultimately chosen response and slower confidence reports when participants indicated low certainty in this response. These observations are consistent with certainty-dependent stopping theories according to which post-choice evidence accumulation ceases when a criterion level of certainty in a choice alternative has been reached, but continues otherwise. Our findings have implications for current models of choice confidence, and predictions they may make about EEG signatures.
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