Aggressiveness and Perceived Marital Quality: The Moderating Role of a Family-Supportive Work Climate

In this article, we examined the impact of language (i.e., native English speakers vs. non-native English speakers) on two aspects of information processing associated with multinational coalition operations in a simulated precrisis, command and control (C2) headquarters (HQ). First, we examined the impact of language on situation awareness (SA) and confidence in the participants' SA responses. Second, we examined the participants' responses to questions about various aspects of language, information sharing, decision-making, identity, and cultural issues that exist within a multinational coalition operation C2 HQ. The primary findings from this work revealed that there was very little impact of language on SA and confidence and that both language groups overwhelmingly shared the same views on information sharing, decision-making, and organizational/cultural issues.     

Calibrating Situation Awareness and Confidence Within a Multinational Coalition Operation

In the present article the calibration of situation awareness and confidence within a multinational coalition was examined. The results revealed differential levels of situational awareness and calibration across the members of the coalition. These findings are discussed in terms of both linguistic and cultural differences within the coalition and the potential implications that poor calibration can have for decision-making and overall team performance.     

Measuring Situation Awareness in Virtual Environment-Based Training

We evaluated the efficacy of a computer-based situation awareness (SA) measurement system for training dismounted infantry SA in an urban terrain virtual reality (VR) simulation. Based on past research, we hypothesized that the SA measures would be sensitive to individual (squad leader) differences, and that the frequency of specific probes would reveal differences in critical SA requirements among scenarios. Three infantry squads performed multiple trials across two different scenarios. A confederate platoon leader posed probes to squad leaders during trials and experts made ratings afterward. Results revealed squad leaders had similar responses to probes, despite differences in combat experience. Analysis of probe frequency revealed different high priority SA elements and decisions for each scenario. The SA behavior and communication ratings revealed differences among squads, which trended with experience. Measures of SA were also consistent across the test scenario as a result of similar mission types and task difficulties. We discuss the implication of our findings for future research and theory within this area.     

工作记忆在监控作业情境意识保持中的作用

本研究通过模拟复杂人机系统的监控作业,考察了长时工作记忆与短时工作记忆在情境意识保持中的作用。研究采用模拟的飞行相撞判断任务,通过考察中断任务对情境意识的影响,分析情境意识在记忆中的存储地点,以及保持时间是否会突破1分钟的限制。本研究选择了心理旋转和算式判断两种中断任务。实验结果表明,在问题回答之前的中断阶段,无论施加心理旋转任务,还是施加算式判断任务,无论中断任务的加工负荷与记忆负荷有多高,熟练被试的情境意识始终保持于较高的水平,并没有因受到中断任务的干扰而出现下降。新手被试的情境意识受到心理旋转任务和算式判断任务的显著影响,而且两种任务的执行速度越快、记忆负荷越大,情绪意识水平就越低。本研究结果说明熟练被试可以利用长时工作记忆存储情境意识,新手被试主要利用短时工作记忆存储情境意识。     

Assessing the potential impacts of connected vehicle systems on Driver’s situation awareness and driving performance

Vehicles equipped with connected vehicle technologies are able to communicate with each other and with infrastructures. Compared to Advanced Driving Assistance Systems (ADAS) using camera systems and sensor technologies, the Connected Vehicle Systems (CVS) leverage the wireless communication networks to detect hazards with a greater range, alert drivers of hazards much earlier, and therefore enhance driving safety. However, drivers’ reliance on the CVS to detect critical situations could negatively affect them maintaining situation awareness (SA) in noncritical situations when no warning is issued by the CVS. The present study conducted a driving simulator experiment with 40 participants to investigate the effect of connected vehicle systems on driver SA in normal, noncritical driving scenarios after they were exposed to the CVS with different designs of collision warning lead time (3 s, 6 s, and no warnings). After drivers experienced the CVS-supported warnings with the assigned design of lead time in critical situations, driver SA was measured in normal driving conditions using the freeze probe technique. Results revealed that drivers who experienced the CVS with early warnings (6 s) showed lower SA for normal driving events compared to those who experienced the CVS with late warnings (3 s) or no warnings. Although early warnings of CVS brought more safety benefits to drivers in critical situations, the degraded driver SA due to drivers’ reliance on such warning systems could endanger drivers when a system failure occurred. These findings highlight the importance of balancing the effects of warning lead time on driver SA and driving performance in designing connected vehicle systems.     

Investigating explanations in conditional and highly automated driving: The effects of situation awareness and modality

With the level of automation increases in vehicles, such as conditional and highly automated vehicles (AVs), drivers are becoming increasingly out of the control loop, especially in unexpected driving scenarios. Although it might be not necessary to require the drivers to intervene on most occasions, it is still important to improve drivers’ situation awareness (SA) in unexpected driving scenarios to improve their trust in and acceptance of AVs. In this study, we conceptualized SA at the levels of perception (SA L1), comprehension (SA L2), and projection (SA L3), and proposed an SA level-based explanation framework based on explainable AI. Then, we examined the effects of these explanations and their modalities on drivers’ situational trust, cognitive workload, as well as explanation satisfaction. A three (SA levels: SA L1, SA L2 and SA L3) by two (explanation modalities: visual, visual + audio) between-subjects experiment was conducted with 340 participants recruited from Amazon Mechanical Turk. The results indicated that by designing the explanations using the proposed SA-based framework, participants could redirect their attention to the important objects in the traffic and understand their meaning for the AV system. This improved their SA and filled the gap of understanding the correspondence of AV’s behavior in the particular situations which also increased their situational trust in AV. The results showed that participants reported the highest trust with SA L2 explanations, although the mental workload was assessed higher in this level. The results also provided insights into the relationship between the amount of information in explanations and modalities, showing that participants were more satisfied with visual-only explanations in the SA L1 and SA L2 conditions and were more satisfied with visual and auditory explanations in the SA L3 condition. Finally, we found that the cognitive workload was also higher in SA L2, possibly because the participants were actively interpreting the results, consistent with a higher level of situational trust. These findings demonstrated that properly designed explanations, based on our proposed SA-based framework, had significant implications for explaining AV behavior in conditional and highly automated driving.     

The perception of team engagement reduces stress induced situation awareness overconfidence and risk-taking

Much research has examined how stress restricts objective Situation Awareness (SA). Little research, however, has focused on SA overconfidence, the notion that an individual may grasp a situation when in fact they do not. Even less SA research has examined the motivational and emotional states of individuals operating in teams in stressful environments. Expanding on recent data suggesting that stress creates SA overconfidence, not simply SA loss, the present experiment manipulated stress levels and the perception of team engagement, which is thought to be a positive motivational state of task-related well-being. Teams of Soldiers were tested in a virtual combat scenario testing shared risk-taking, objective (i.e., collaborative ability to answer SA probes), and subjective SA. Results indicated that the mere perception of above average team engagement reduced stress induced SA overconfidence and risk-taking of teams. These results suggest simple, virtually costless strategies for improving elements of SA that may impact the behavior of teams and potentially improve their decision-making.     

Writing and long-term memory: Evidence for a “translation” hypothesis

Two experiments investigated the effects of writing upon memory. In the first experiment an incidental learning procedure was employed: One group of subjects read words silently and wrote visually presented words, and a second group of subjects listened to auditorily presented words and wrote heard words. Recognition of heard words was substantially enhanced by writing, whereas the effect of writing on memory for read words was less powerful. A second experiment employing an intentional learning procedure replicated these findings and demonstrated the robustness of the beneficial consequences of writing on memory for heard words. These findings are conceptualized within a framework that proposes that translations between specialized processing domains that occur at encoding lead to the formation of distinctive memories and, hence, to better retention.     

Take over! A video-clip study measuring attention,situation awareness,and decision-making in the face of an impending hazard

In highly automated driving, drivers occasionally need to take over control of the car due to limitations of the automated driving system. Research has shown that visually distracted drivers need about 7 s to regain situation awareness (SA). However, it is unknown whether the presence of a hazard affects SA. In the present experiment, 32 participants watched animated video clips from a driver’s perspective while their eyes were recorded using eye-tracking equipment. The videos had lengths between 1 and 20 s and contained either no hazard or an impending crash in the form of a stationary car in the ego lane. After each video, participants had to (1) decide (no need to take over, evade left, evade right, brake only), (2) rate the danger of the situation, (3) rebuild the situation from a top-down perspective, and (4) rate the difficulty of the rebuilding task. The results showed that the hazard situations were experienced as more dangerous than the non-hazard situations, as inferred from self-reported danger and pupil diameter. However, there were no major differences in SA: hazard and non-hazard situations yielded equivalent speed and distance errors in the rebuilding task and equivalent self-reported difficulty scores. An exception occurred for the shortest time budget (1 s) videos, where participants showed impaired SA in the hazard condition, presumably because the threat inhibited participants from looking into the rear-view mirror. Correlations between measures of SA and decision-making accuracy were low to moderate. It is concluded that hazards do not substantially affect the global awareness of the traffic situation, except for short time budgets.     

Is Literary Arabic a Second Language for Native Arab Speakers?: Evidence from Semantic Priming Study

The mother tongue of the absolute majority of native Arabic speakers is Spoken Arabic (SA), which is a local dialect that does not have a written form. For reading and writing, as well as for formal communication Literary Arabic (LA) is used. For the literate Arabs, these two languages are extensively inter-twined in every day life. Consequently, it is possible that, despite the difference between them, LA is not processed like a regular second language by the cognitive system of the native Arabic speakers but rather as an enhancement of the spoken lexicon. In the present study we examined this possibility comparing semantic priming effects in auditory lexical decision within SA (L1), with the effects found across languages with LA or in Hebrew (L2). Hebrew is doubtlessly a second language for native Arabic speakers. In this study we have manipulated semantic priming. In Experiment 1 the targets were in Spoken Arabic and the primes in any of the three languages. The semantic priming effect was twice as large within L1 as between languages and there was no difference between Hebrew and LA. In Experiment 2, all primes were in SA whereas the targets were in any of the three languages. The priming effects in that experiment were doubled relative to the previous experiment, but the inter-language relationships were the same. For both language pairings, the semantic priming was larger when the primes were presented in SA (and the targets in either Hebrew or LA) than when the primes were presented in one of the second languages and the targets in SA. The conclusion is that, despite the intensive daily use adult native Arabic speakers make of SA and LA, and despite their shared origin, the two languages retain their status as first and second languages in the cognitive system.     

Get angry, get out: The interpersonal effects of anger communication in multiparty negotiation

Research on multiparty negotiation has investigated how parties form coalitions to secure payoffs but has not addressed how emotions may affect such coalition decisions. Extending research on bilateral negotiations which has generally argued that it is beneficial to communicate anger, we argue that it constitutes a considerable risk when there are more than two people present at the negotiation table. Using a computer-mediated coalition game we show that communicating anger is a risky strategy in multiparty bargaining. The main findings of three studies were that participants: (1) form negative impressions of players who communicate anger and therefore (2) exclude such players from coalitions and from obtaining a payoff share, but (3) make considerable concessions on those rare occasions that they choose to form a coalition with an angry player, or (4) when they had to form a coalition with an angry player. We discuss the implications of these results for theorizing on emotions, negotiations, and coalition formation.     

Capturing the biases of socially anxious people by addressing partner effects and situational parameters

To expose biases in self-perceptions of people high in social anxiety, information is needed on actual and perceived informant reports following social situations. We measured trait social anxiety (SA) in 90 college students arranged in pairs for “getting acquainted” conversations. Half participated in a small-talk task, where they took turns answering superficial questions; half participated in a closeness-generating task, where questions required gradual increases in self-disclosure. Afterward, students rated themselves and their partner on positive and negative attributes and how they think their partner viewed them. People with high SA judged themselves more negatively and less positively than their partner did (accuracy); when interacting with a partner endorsing low SA, they possessed enhanced negativity biases about how they expected to be viewed (meta-accuracy), and believed their partner's judgments were less positive than their own low self-judgments (perceived dissent). Conversely, people with low SA showed evidence of a self-enhancement bias about the impression they made on low SA strangers. Other moderators of the social cognitions of people with high SA included gender and the social situation (distortions being amplified in men and small-talk conversations). Our findings suggest that the study of SA cannot be understood using decontextualized approaches, instead requiring consideration of the synergy among the person, partner, and situation.     

Threats,Promises, and Coalitions: A Study of Compliance and Retaliation in a Simulated Organizational Setting1

This research sought to examine the effects of threats and promises on compliance and the formation of subordinate coalitions in a simulated employeremployee conflict situation. It also sought to determine some of the motives underlying coalition decisions-tangible and intangible-and the conditions under which each of these possible motive types would be salient. Coalition motives were examined by manipulating the consequences for coalition members following their use of coalition power (presence vs. absence of monetary gain). A control condition was present in which no such power was available. Ninety male undergraduate business students were randomly assigned to one of six experimental conditions in a 3 × 2 factorial design. Three Ss engaged in a modified bilateral monopoly bargaining task in which two of them (the “employees”) believed they were exchanging a series of offers and counteroffers with the third (the “employer”) over a hypothetical wage increase for a maximum of eight rounds. Ss were told they would earn a sum of money proportional to the effectiveness of their bargaining. In actuality, all Ss were assigned the employee role and all employer “offers” were pre-programmed. On round six, the Ss were “sent” either a threat or promise message by the employer demanding that they accept his round five offer. Compliance-noncompliance was defined as employee acceptance-rejection of this demand, respectively. In addition to compliance behavior, S s in coalition conditions had the power to form an alliance with the other employee against the employer after the latter used his threat or promise power. Coalitions could confiscate up to 25% of the employer's earnings and, depending on experimental condition, could either keep or not keep any money their coalition acquired. It was hypothesized that threateners would elicit less compliance, and be responded to with more, and more severe subordinate coalitions than would promisers. It was further assumed that there would be less compliance when subordinates had coalition power, and that the effect of monetary reward on the likelihood of coalition formation would be contingent on the type of power (threats vs. promises) the employer used. Specifically, it was assumed that a majority of S s in the Threat condition who had this power would form coalitions against the employer regardless of whether or not they realized any tangible gain for doing so. In the promise condition, however, it was expected that coalition decisions would be based primarily on whether Ss stood to gain monetarily. The hypotheses were supported. These results were discussed in terms of the impact of power acquisition as a variable mediating perception and compliance behavior, and in terms of the role of economic vs. retaliatory motives as factors underlying subordinate coalition decisions. Some of the conditions which influence the relative salience of these two coalition motives were proposed, and the organizational implications of these findings were suggested.     

Coalition formation in characteristic function games: Competitive tests of three theories

Two experiments tested the bargaining, minimum resource, and minimum power theories of coalition formation in situations involving different payoffs for some of the winning coalitions (characteristic function games). In the first experiment, a triadic resource distribution was employed and payoffs for the coalitions were specified in such a way that each of the three theories predicted the formation of a different coalition. The coalition predicted by minimum power theory formed the most frequently, and the mean divisions of the payoffs among coalition members were also closest to the predictions of minimum power theory. However, the most frequent coalition was not only the one predicted by minimum power theory, it was also the one having the largest payoff per member. There-fore, a second experiment was conducted, which employed a tetradic resource distribution and specified the coalition payoffs in such a way that (a) each of the theories predicted the formation of a different coalition and (b) none of the predicted coalitions was the one with the largest payoff per member. Although the mean payoff divisions in the coalitions in this experiment were closest to those predicted by bargaining theory, the coalition that formed most frequently was not one of those predicted by any of the theories. Rather, it was the one having the largest payoff per member. None of the three theories is able to account adequately for the results of both experiments. The difficulties that the theories have in dealing with coalition formation in situations in which there are different payoffs for winning are discussed.     

Explicit or implicit situation awareness? Measuring the situation awareness of train traffic controllers

Previous research on situation awareness (SA) predominantly focused on its explicit, reasoned, conscious features rather than on the implicit, intuitive, unconscious aspects that are often identified with expert operators. This research investigated implicit levels of SA of train traffic controllers (TTCs) in order to contribute to the body of knowledge on rail human factors research and SA. A novel approach was used to uncover levels of implicit SA through a set of three analyses: (1) fairly low SAGAT values with correlations between SAGAT scores and multiple performance indicators; (2) negative correlations between work experience and SAGAT scores; and (3) structurally lower level-1 SA (perception) scores in comparison to level-2 SA (comprehension) scores in accordance with Endsley’s three-level model. Two studies were conducted: A pilot study – which focused on SA measurements with TTCs in a monitoring mode (N = 9) – and the main study, which involved TTCs from another control center (N = 20) and three different disrupted conditions. In the pilot study, SA was measured through the situation-awareness global assessment technique (SAGAT), perceived SA and observed SA, and performance was measured through punctuality and unplanned stops of trains before red signals. In the main study, SA was measured through SAGAT, and perceived SA and multiple performance indicators, such as arrival and departure punctuality and platform consistency, were assessed. In both studies, the set of three analyses showed consistent and persistent indications of the presence of implicit SA. Endsley’s three-level model and related SAGAT method can be constrained by the presence of these intuitive, unconscious processes and inconsistent findings on correlations between SAGAT scores and performance. These findings provide insights into the SA of TTCs in the Netherlands and can support the development of training programs and/or the design of a new traffic management system.     

Motor Programming as a Function of Constraints on Movement Initiation

Three experiments are reported that test the hypothesis that under certain conditions programming time is a function of the directional accuracy demand of a response, directional accuracy being quantified by the minimal angle subtended at the point of movement initiation by the circular targets within the response. Subjects in three simple reaction time experiments were required to tap a single target or a series of circular targets as rapidly as possible with a hand-held stylus. Experiments 1 and 3 showed that the subtended angle (SA) of a response can have a more powerful effect on programming time, as indexed by reaction time and premotor time, than the number of movement parts in the response. The results of Experiment 2 revealed that the locus of the directional accuracy effect was SA and not target size or movement distance. In all three experiments, response SA was a better predictor of programming time than was number of movement parts, target size, movement distance, movement time, and average movement velocity. The findings support the notion that constraints placed upon movement initiation by the directional accuracy demand of the task can play an important role in determining the length of the programming process.     

Motor programming as a function of constraints on movement initiation

Three experiments are reported that test the hypothesis that under certain conditions programming time is a function of the directional accuracy demand of a response, directional accuracy being quantified by the minimal angle subtended at the point of movement initiation by the circular targets within the response. Subjects in three simple reaction time experiments were required to tap a single target or a series of circular targets as rapidly as possible with a hand-held stylus. Experiments 1 and 3 showed that the subtended angle (SA) of a response can have a more powerful effect on programming time, as indexed by reaction time and premotor time, than the number of movement parts in the response. The results of Experiment 2 revealed that the locus of the directional accuracy effect was SA and not target size or movement distance. In all three experiments, response SA was a better predictor of programming time than was number of movement parts, target size, movement distance, movement time, and average movement velocity. The findings support the notion that constraints placed upon movement initiation by the directional accuracy demand of the task can play an important role in determining the length of the programming process.     

Evaluating the impacts of situational awareness and mental stress on takeover performance under conditional automation

Several safety concerns emerge for the transition of control from the automated driving system to a human driver after the vehicle issues a takeover warning under conditional vehicle automation (SAE Level 3). In this context, recent advances in in-vehicle driver monitoring systems enable tracking drivers’ physiological indicators (e.g., eye-tracking and heart rate (HR) measures) to assess their real-time situational awareness (SA) and mental stress. This study seeks to analyze differences in driver’s SA and mental stress over time (i.e., successive experiment runs) using these physiological indicators to assess their impacts on takeover performance. We use eye-tracking measures (i.e., on-road glance rate and road attention ratio) as indicators of driver’s SA during automated driving. Further, we use the pre-warning normalized HR (NHR) and HR variability (HRV) as well as the change in NHR and HRV after the takeover warning as indicators of mental stress immediately before and the change in mental stress after the takeover warning, respectively. To analyze the effects of driver state (in terms of SA and mental stress) on the overall takeover performance, this study uses a comprehensive metric, Takeover Performance Index (TOPI), proposed in our previous work (Agrawal & Peeta, 2021). The TOPI combines multiple driving performance indicators while partly accounting for their interdependencies. Results from statistical analyses of data from 134 participants using driving simulator experiments illustrate significant differences in driver state over successive experiment runs, except for the change in mental stress after the takeover warning. Some significant correlations were found between the physiological indicators of SA and mental stress used in this study. Takeover performance model results illustrate a significant negative effect of change in NHR after the takeover warning on the TOPI. However, none of the other physiological indicators show significant impacts on takeover performance. The study findings provide valuable insights to auto manufacturers for designing integrated in-vehicle driver monitoring and warning systems that enhance road safety and user experience.     

基于多传感器数据的航空管制员情境意识的计算

航空管制人员保持良好的情境意识是确保空中交通以安全、高效方式运行的必要条件。如果在管制员工作过程中, 能准确监测其情境意识状态, 并在情境意识丧失前给予及时告警, 那么将会极大地提高管制绩效和减少空中两机相撞的概率。目前, 国外评价管制员情境意识的方法虽然不少, 但这些方法基本都是诊断性质和回溯性质的, 无法对管制员的情境意识进行监测或预警。管制员的情境意识受个体差异、任务等多种因素的影响, 同时, 其也可以由某些指标来表征, 如某些作业绩效指标和生理指标。为了能够实现对航空管制员情境意识的准确监控及告警, 拟通过雷达管制模拟实验、心理测量、专家评定等方法采集多传感器数据, 分别建立基于表征指标和基于影响变量的情境意识计算模型, 并比较其预测性能。该研究结果可为管制员情境意识的实时监测提供支持。     

Effects of hazard exposure and roadway complexity on young and older driver situation awareness and performance

Few previous studies of driver situation awareness (SA) have focused on behavior in hazard negotiation. The objective of this research was to assess the effect of hazard exposure on driver SA and interactions with age and roadway complexity. Ten young (18–25 yrs) and ten older (65–81 yrs) participants drove in a simulator under two levels of environment complexity (simple – rural vs. complex – city) with two types of hazard exposure (static vs. dynamic). Situation awareness was measured using real-time probes posed by a confederate passenger. Driving performance was assessed in terms of lane maintenance and speed control. Results revealed hazards to cause degradations in high level of driver SA and speed control or to trigger adaptation, and vulnerability to hazard type was dependent on driver age. Older drivers exhibited greater speed reduction in response to dynamic hazards; whereas, young driver maintained higher speed, as compared to normal driving, when confronted with static hazards. In addition, increased roadway environment complexity compounded decrements in performance caused by hazard exposure. These findings are applicable to modeling driver behavior and SA under hazardous conditions and may support the design of new in-vehicle assistive technologies for hazard avoidance.