Effect of external HMI for automated vehicles (AVs) on drivers’ ability to infer the AV motion intention: A field experiment

A field experiment was conducted aiming to shed light on how drivers negotiate an ambiguous traffic situation when encountering an autonomous vehicle (AV) in the presence of a yielding intention signal (AV with eHMI) or not (AV without eHMI). A traffic conflict scenario was created with two opposing vehicles instructed to perform a left turn at a four-way junction, at the same point in time. Forty participants were assigned to two groups encountering either an AV with eHMI or an AV without eHMI. To check for equivalence across the two groups, both groups also encountered a conventional vehicle (CV). Results showed that the two groups performed similarly during encounters with a CV. During encounters with AV, however, participants provided with the eHMI maintained higher speed before the AV and finished their maneuver quicker than when they were not provided with eHMI. Additionally participants provided with eHMI rated higher their ability to infer the AV intention before coming to a full-stop than those provided without eHMI. The above findings indicate that the presence of eHMI on AV can accelerate drivers’ inferences about yielding intention of an AV, and have the potential to optimize AV-driver interaction in ambiguous traffic situations.     

Perception of communal motives in couples: Accuracy,bias, and their associations with relationship length

Can romantic partners accurately perceive each other’s communal motives, or are these perceptions biased by their own motivational hopes and fears? This study used data from N = 1,905 partnered participants to examine the extent to which partner perceptions of communal motives correspond to targets’ (accuracy) and perceivers’ (motivational bias) explicit and implicit communal motives. Our results indicate that explicit communal motives and implicit communal approach motives can be (a) accurately inferred and (b) positively bias communal motive perception. Furthermore, there was no evidence for moderation of either accuracy or motivational bias by relationship length. These findings point to the early visibility of both implicit and explicit motives in couples, as well as their persistent biasing effects on partner perception.     

The Effect of Children's Sleeping Arrangements (Communal vs. Familial) on Fatherhood Among Men in an Israeli Kibbutz

Abstract

The author examined the effect of children's sleeping arrangements (communal vs. familial) on the extent of fathers' involvement in their children's lives and their level of satisfaction from fatherhood. Questionnaires assessing those aspects of fatherhood were administered to 40 fathers living in a kibbutz. Results indicated that the fathers of children sleeping at home were more involved with their children's lives and showed higher levels of satisfaction from fatherhood. Preference for a communal sleeping arrangement for children was expressed among 7 men, all of whom were older than 50 years. These results are discussed in the context of culturally changing concepts of paternal roles in the family and socioeconomic transition in the kibbutz.     

The implicit self and the specificity-matching principle: Implicit self-concept predicts domain-specific outcomes

According to the specificity-matching principle (Swann, Chang-Schneider, & McClarty, 2007), specific aspects of self-concept should predict domain specific outcomes, rather than broader outcomes. The purpose of the current study was to determine whether this principle, which has thus far been examined using explicit measures of the self, extends to the implicit self-concept. We tested this idea in the domain of math achievement. We observed that explicit math self-concept was correlated with specific outcomes (measures of math achievement), whereas explicit self-esteem was correlated with a broad outcome (satisfaction with life). Thus, we replicated the specificity-matching principle using explicit measures of self-esteem and self-concept. Moreover, we found that implicit self-concept was correlated with domain-specific outcomes, but not a global outcome, as the specificity-matching principle would predict. Furthermore, regression analyses indicated that implicit self-concept accounted for unique variance in the domain-specific outcomes, for which the other measures of the self could not account. Taken together, we conclude that the specificity-matching principle does indeed extend to the implicit self-concept.     

Event familiarity influences memory detection using the aIAT

The developers of the autobiographical Implicit Association Test (aIAT) describe it as a possible memory detection tool. This claim rests on the assumption the aIAT can reliably and automatically detect the accuracy of autobiographical events. However, the aIAT may be susceptible to factors that affect the assessment of truth vs. falseness, such as the relative familiarity of those events. We compared aIAT performance when participants reported recent vs. childhood autobiographical events, and when participants imagined vs. did not imagine a fabricated autobiographical event. The aIAT was less effective at distinguishing between real and fabricated events from childhood, compared to recent real and fabricated events. Imagining a fabricated event did not affect aIAT performance; however, there was a trend in the data suggesting imagination may have reduced the effect of event recency. Our results provide further evidence that reducing or enhancing source confusion—via familiarity—can influence the predictive value of the aIAT.     

Mindfulness reduces habitual responding based on implicit knowledge: Evidence from artificial grammar learning

Participants were unknowingly exposed to complex regularities in a working memory task. The existence of implicit knowledge was subsequently inferred from a preference for stimuli with similar grammatical regularities. Several affective traits have been shown to influence AGL performance positively, many of which are related to a tendency for automatic responding. We therefore tested whether the mindfulness trait predicted a reduction of grammatically congruent preferences, and used emotional primes to explore the influence of affect. Mindfulness was shown to correlate negatively with grammatically congruent responses. Negative primes were shown to result in faster and more negative evaluations. We conclude that grammatically congruent preference ratings rely on habitual responses, and that our findings provide empirical evidence for the non-reactive disposition of the mindfulness trait.     

Profile of urban vs rural drivers detected drink driving via Roadside Breath Testing (RBT) in Queensland,Australia, between 2000 and 2011

ProblemIn Australia, as in many other countries, a disproportionate number of drink driving crashes occur on rural roads.Aims and methodThe study used Queensland Police Random Breath Testing (RBT) data from 2000–2011 to (a) comparing drink driving rates and RBT efficacy in areas of increasing remoteness (b) compare drink driver factors and the circumstances of apprehensions in rural and urban areas.ResultsGenerally, rural areas had a higher detection rate per RBT intercepts and a greater number of apprehensions per licensed drivers than the state average. Main effects showed that rural drivers were more likely to be male and to be a reoffender but less likely to be apprehended between midnight and 5.59 am and after visiting a licensed venue. Urban drivers were more likely to be aged 17–49 years and to be apprehended with a BAC < 0.15%.ConclusionDifferences in RBT effectiveness and drink driving factors and circumstances exist between rural and urban areas.Practical applicationThe greater number of drink drivers in rural areas signal a need for targeted interventions in these areas. To increase the effectiveness of such interventions, further research should examine the mechanisms responsible for these observed differences between rural and urban drink driver.     

Urban–rural differences in children's earliest memories

The purpose of the present study was to address the effects of urban vs. rural upbringing on earliest autobiographical memories. We asked children (aged 10–13) brought up in an urban vs. in a rural setting to report their earliest memories. Earliest memories of children from rural areas were a year later than those of children from urban areas. Moreover, memories of children from rural areas were more likely to contain social interactions and tended to be less detailed compared to those from urban areas. The groups, however, were not different in specificity, autonomous orientation, or emotion. Results are discussed in the context of a social cultural developmental approach.     

内隐自尊的特性：来自EAST的证据

采用外部情绪性Simon任务（EAST）对109名大学生对代表自我和他人的刺激词的态度差异进行测量,从而探讨内隐自尊的特性。结果显示：在个体的认知图式中,对自我持有一种内隐的积极的评价或态度,对他人持有一种内隐的相对消极的评价或态度。具体表现在：（1）内隐自尊的特性是将自己与积极的评价和情感相联系,将他人与消极的评价和情感相联系;（2）自我姓名激活的积极的内隐自我态度比一般性自我词更为强烈,而他人姓名激活的消极的内隐态度比一般性非我词更弱。本研究表明,EAST能有效检测出内隐自尊效应,并可以同时获得个体对自我和他人的内隐态度的强度和方向,为内隐自尊研究提供了一种新的有效的方法,但其应用仍需谨慎。     

Sharing losses and sharing gains: Increased demand for fairness under adversity

There is ample experimental evidence showing that people have a strong preference for equity in wealth allocation and social interaction. Although the behavior of gain sharing and responses to (un)fairness in allocation of wealth has been extensively investigated in studies employing economic exchange games, few studies have focused on how people respond to an unfair division of loss between individuals. In this study we developed a new variant of the ultimatum game and examined the participants' reactions to (un)fairness in both gain and loss sharing. Results from three experiments showed that the rejection rates to unfair offers were generally higher in the loss than in the gain domain. Moreover, participants were inclined to associate loss with “unfair” and gain with “fair”, with stronger associations leading to higher rejection rates in the ultimatum game. Furthermore, in subjective rating, unfair offers were perceived as being more unfair in the loss than in the gain domain. These results demonstrate an increased demand for fairness under adversity and the importance of justice in liability sharing.