The effect of stress on accuracy and speed of judgment

Farhadbeigi, Parvaneh; Baghérian, Fatémeh; Banaraki, Anahita Khorrami

doi:10.1016/j.sbspro.2012.01.009

Cited by 7 publications

(5 citation statements)

References 9 publications

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“…(2017) studies that demonstrated that increased stress and anxiety are associated with weaker WM performance (emotional impairment hypothesis). It may be justified by the fact that stress increases the likelihood of cognitive errors due to possible impairments in individuals' attention and concentration ( Farhad Beigi et al., 2011 ). It has been exhibited that during stress, controlled attention resources are decreased as they are assigned to the potential threat ( Klein and Boals, 2001 ).…”

Section: Discussionmentioning

confidence: 99%

Examining the effect of stress induction on auditory working memory performance for emotional and non-emotional stimuli in female students

Khayyer

Azad²,

Arani

et al. 2021

Heliyon

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Background Theoretical frameworks have shown that stress might influence working memory in different ways. Previous research has investigated the effect of stress on female's working memory but there is lack of evidence regarding the impact of emotional aspects. Objectives This study examined the effect of stress induction on auditory working memory (AWM) performance among university students for emotional (positive and negative) and non-emotional (neutral) stimuli. Methods A sample of 102 female students at the Universities of Isfahan, Iran was selected using convenience sampling in 2018. Participants completed the demographic information sheets, then, they were randomly assigned into the experimental and control groups. The stress was induced by the Socially Evaluated Cold Pressor Test (SECPT). An n-back task was presented pre and post of stress induction, to evaluate the AWM performance (accuracy and reaction time). The research data were analyzed using mixed-model ANOVA. Results Both accuracy and reaction time (RT) scores were found to be enhanced for positive words in the experimental condition. However, accuracy and RT indices were found to be worsening for negative words in the experimental condition. Conclusions This study supports the idea that stress influences AWM performance depend on emotionally-valenced stimuli, which may help us to better understand the underlying mechanisms of memory processing.

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Section: Discussionmentioning

confidence: 99%

Examining the effect of stress induction on auditory working memory performance for emotional and non-emotional stimuli in female students

Khayyer

Azad²,

Arani

et al. 2021

Heliyon

View full text Add to dashboard Cite

show abstract

“…Thus, from the perspective of aircraft control, introducing a mild stressor actually improved performance. Interestingly, it has been shown elsewhere that mild stress improves speed without affecting accuracy (Shields et al, 2019) or even decreases accuracy (Farhadbeigi et al, 2012). It is unclear why the participants in this experiment responded differently to stress with respect to changes in speed and accuracy, but it is well established that mild levels of stress and arousal can improve performance and vigilance (Teigen, 1994).…”

Section: Resultsmentioning

confidence: 76%

Identifying Early Predictors of Learning in VR-based Drone Training

Hayes

Dwivedi

Karthikeyan

et al. 2022

Proceedings of the Human Factors and Ergonomics Society Annual

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The use of small unmanned aerial systems, or drones, has grown rapidly in recent years, but the FAA has no formal requirement for hands-on training. Physical drone training has major limitations, and virtual reality (VR) offers a promising alternative. This study sought to identify early performance markers of learning in VR-based drone training using a physical controller. 14 participants completed a customized VR-based drone training curriculum, while performance metrics, perceptions of workload, and physiological data were collected. Participants were clustered into high and low performers based on a final evaluation task, and separate analyses of variance were conducted to test performance differences between the two groups over time in each training level. We found significant differences in the performance metrics and subjective workload of low and high performers throughout training, suggesting that performance can be predicted early in training and opening the door to future adaptive training systems.

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“…In fact, these findings direct our attention to the link between emotional and cognitive functioning. Several studies have shown the effects of stress on memory, knowledge retrieval and attention . For instance, stress‐induced cortisol levels have been found to correlate with reckless decisions and poor memory performance .…”

Section: Discussionmentioning

confidence: 99%

Factors underlying suboptimal diagnostic performance in physicians under time pressure

et al. 2018

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CONTEXT Time pressure has been implicated in the suboptimal diagnostic performance of doctors and in increases in diagnostic errors. However, the reasons underlying these effects are not clear. The aim of this study was to investigate the influence of time pressure on physicians' diagnostic accuracy and to explore the mediating effects of perceived stress (emotional pathway) and number of plausible diagnostic hypotheses (cognitive pathway) on the proposed relationship.METHODS We conducted a randomised controlled experiment. A total of 75 senior internal medicine residents completed eight written clinical cases under conditions with (n = 40) or without (n = 35) time pressure. They were then asked to: (i) rate the overall stress experienced, and (ii) write down any alternative hypotheses they had thought of when diagnosing the cases. In a post hoc analysis, a mediation path analysis was performed to test the causal relationships between time pressure, perceived stress and number of alternative diagnoses. RESULTSParticipants who were under time pressure spent less time diagnosing the cases (85.54 seconds versus 181.81 seconds; p< 0.001) and had a lower mean diagnostic accuracy score (0.44 versus 0.53; p = 0.01). In addition, they reported more stress (5.80 versus 4.69; p = 0.01) and generated fewer plausible tentative hypotheses (0.37 versus 0.51; p = 0.01). Two path coefficients were found to be statistically significant; the first path coefficient referred to the relationship between time pressure and perceived stress (standardised b = 0.25, p = 0.029), and the second negative path coefficient referred to the relationship between time pressure and number of plausible alternative hypotheses (standardised b = À0.32, p< 0.01).CONCLUSIONS Time pressure adversely influences physicians' diagnostic accuracy by increasing their stress response and reducing the number of plausible hypotheses as mediators.

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The effect of stress on accuracy and speed of judgment

Cited by 7 publications

References 9 publications

Examining the effect of stress induction on auditory working memory performance for emotional and non-emotional stimuli in female students

Examining the effect of stress induction on auditory working memory performance for emotional and non-emotional stimuli in female students

Identifying Early Predictors of Learning in VR-based Drone Training

Factors underlying suboptimal diagnostic performance in physicians under time pressure

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