What if they knocked down the library and nobody noticed? The failure to detect large changes to familiar scenes

The purpose of the current study was to investigate people's ability to detect changes to familiar scenes. College students were asked either to identify what was wrong with a picture of a familiar location on their college campus (e.g., the library had been removed from the scene), or to estimate the difficulty of change detection for a hypothetical cohort performing the same task. Performance in the change-detection condition was extremely poor, even when changes were large. Participants who were familiar with the scenes and those who were unfamiliar with the scenes both overestimated the actual levels of change-detection performance. A follow-up analysis indicated that the participants who were unfamiliar with the scenes produced estimations of difficulty that were highly correlated with the mathematical area of the change, whereas participants who were familiar with the scenes produced estimations of difficulty that were highly correlated with the actual difficulty of change detection. The results indicate that people's visual long-term memory for familiar scenes lacks the precision to be able to effectively identify even large-scale changes, although subjectively people believe this should be relatively easy.     

The failure to respond to changes in the road environment: Does road familiarity play a role?

Road signs do not necessarily lead to the right response. Especially when signs are changed, drivers may not always detect new signs and may therefore fail to respond correctly to the situation indicated. The present driving simulator study investigated whether road familiarity (increased exposure to the same road) influenced failure to respond to a change in road signs. In order to study the failure to respond, participants were presented with a change in the road lay-out (as indicated by a road sign) in the last of a series of simulated drives. The change introduced was the conversion of a normal road into a No-Entry road. Results show that several participants failed to respond to this change. However, the failure to respond was not simply the result of familiarity with the road or prior exposure to precisely the same road, but seemed to be influenced by expectations induced by the road design. Additional safety measures such as the placement of additional road signs reduced the failure to respond. An auditory in-vehicle message gave the best results. Interestingly, both in the case of additional signs and of the in-vehicle message, a general warning was sufficient, without the need to specify the precise traffic situation.     

What if they are right? Network approval,expectations, and relationship maintenance behaviors

This study drew on uncertainty reduction and decision‐making theories to investigate how perceptions of approval of romantic relationships from family and friends can influence romantic partners' dynamics. Using a dyadic approach, the authors examined whether expectations of a partner's behavior in the relationship mediated the associations between perceived social network approval and relationship maintenance behaviors in a sample of 137 couples. The actor–partner interdependence mediation model (APIMeM) was applied. Results showed that women's and men's perceptions of approval from their own and their partner's network were associated with their own level of expectations of their partner's behaviors. In turn, women's and men's expectations were associated with their own and their partner's maintenance behaviors.     

What if I am the one? Measuring individual differences in emotional sensitivity to probability and emotional reactivity to possibility

Current theories of risk perception point to the powerful role of emotion and the neglect of probabilistic information in the face of risk, but these tendencies differ across individuals. We propose a method for measuring individuals' emotional sensitivity to probability to assess how feelings about probabilities, rather than the probabilities themselves, influence decisions. Participants gave affective ratings (worry or excitement) to 14 risky events, each with a specified probability ranging from 1 in 10 to 1 in 10,000,000. For each participant, we regressed these emotional responses against item probabilities, estimating a slope (the degree to which emotional responses change with probability) and an intercept (the emotional reaction to an event with a fixed probability). These two parameters were treated as individual difference scores and included in models predicting reactions to several health risk scenarios. Both emotional sensitivity to probability (slope) and emotional reactivity to possibility (intercept) significantly predicted responses to these scenarios, above and beyond the predictive power of other well‐established individual difference measures.     

What causes failure to apply the Pigeonhole Principle in simple reasoning problems?

The Pigeonhole Principle states that if n items are sorted into m categories and if n > m, then at least one category must contain more than one item. For instance, if 22 pigeons are put into 17 pigeonholes, at least one pigeonhole must contain more than one pigeon. This principle seems intuitive, yet when told about a city with 220,000 inhabitants none of whom has more than 170,000 hairs on their head, many people think that it is merely likely that two inhabitants have the exact same number of hair. This failure to apply the Pigeonhole Principle might be due to the large numbers used, or to the cardinal rather than nominal presentation of these numbers. We show that performance improved both when the numbers are presented nominally, and when they are small, albeit less so. We discuss potential interpretations of these results in terms of intuition and reasoning.     

What if we abandon the concept of career proactivity to move research forward?

The idea that individuals need to be proactive to successfully manage their career is predominant in current career research. Despite the great importance attached to career proactivity, the literature on the topic remains fragmented. I thus highly welcome the comprehensive literature review Career proactivity: A bibliometric literature review and future research agenda. The authors conduct a thorough and rigorous bibliometric analysis to uncover the width, evolution, and gaps in the literature on career proactivity. I also welcome their roadmap for future research. I very much agree with the issues they point out: Cleaning up concepts, integrating context, and developing new theories. But I do wonder if their specific suggestions on these issues will not tend toward status quo and further fragmentation. Questioning the agentic assumption and individualistic stance of research on career proactivity, I plea for a different and more unconventional route. Below, I reflect on the author's and my ideas on these three issues: Concept clarification, including context, and new theory.     

Fears from the past? The innate ability of dogs to detect predator scents

Animal Cognition - Throughout the animal kingdom, antipredator mechanisms are an evolutionary driving force to enable the survival of species classified as prey. Information regarding a...     

The old and the new sublimes: Do they signify? God?

Conclusion It is not the case that God is interestingly like the unavailable transcendental signified in being unavailable. God always was absconded. The signified may not even really have gone away at all. And if it has, it is not God; it is only like Him in having gone away. And it has gone away, if it has, in a different mode of ‘going away’. To use a Turneresque metaphor: God is and will always be another, far, range behind the misty-but-glittering and absconded signifieds, which leave only the trace which is the play of signifiers in the immediate foreground. One is free to attend to whichever range one wishes, or one may attend only to the foreground. But the dazzlingsublime ¹² of the foreground, “That change of cloud and light, never-ending and agitating itself into kaleidoscopic patterns, the play of signifiers”, is—and never could be—quite like the “sublime” of the far, far range whose Inhabitant is said to be, “From everlasting to everlasting”. His “play” is said to be not of signifiers, butof all there is; it is notsemiological butontological. And He is altogether beyond the sublime, for with Him, or with the Beatific Vision of Her,there would be no critical problem left. The Logos is not a signifier. —shakes a dust Of the doctrine, flavours thence, he well knows how, The narrative of the novel,—half believes All for the book's sake… Robert Browning     

Placebo and the helsinki declaration — What to do?

The Helsinki Declaration is the ‘gold standard’ — a directive, not a law, on how to conduct controlled studies in humans in conformity with ethical principles. In spite of many discussions about their unsuitability some articles have remained unchanged in the most recent (sixth) revision of the Declaration. The demand to use “the best treatment” excludes use of placebo in the control group and presents an obstacle to the scientific evaluation of a number of drugs and treatments in general. The use of placebo is justified whenever its use does not cause irreversible damage or considerable suffering to the well informed patient. It must be, is, and will be used in the controlled clinical trials of treatments of a great number of diseases especially those which have a tendency to spontaneous improvement, even healing, or have a pronounced psychological component An earlier version of this paper was presented at an international conference, “Placebo: Its Action and Place in Health Research Today,” held in Warsaw, Poland on 12–13 April, 2003.     

What is the speed to transparent and kinetic-boundary displays?

To compare transparent motion and kinetic boundaries with unidirectional motion, in many studies the relative motion is generated by superimposing or adjoining unidirectional motions oriented in opposite directions. The presumption, tacitly underlying this comparison, is that the two oppositely directed velocities are independent of one another as far as their speed is concerned, i.e. the speed of the relative motion is presumed to be equivalent to the speed of the unidirectional components. Here we report that the relative motion between dots moving in opposite directions augments perceived speed. A constant-stimuli procedure was used to pair transparent-motion or kinetic-boundary displays with unidirectional motion, and human observers were asked to match the speed of the relative and unidirectional motions. The results show that transparency and kinetic boundaries increase the perceived visual speed by about 50%, compared with the speed of the individual components.     

The Zeigarnik effect and intrinsic motivation: Are they the same?

The present study focused on delineating the parameters under which intrinsic motivation leads an individual to reengage an activity from those that result in the Zeigarnik effect. In a posttask free-choice period, participants not completing the experimental task displayed more reengagement behavior than participants completing the task (the Zeigarnik effect). When participants were also provided self-efficacious performance feedback via a prearranged competitive outcome manipulation, there was no evidence of the Zeigarnik effect, while there was support for intrinsic motivation from competent self-efficacious performance feedback. Results were discussed in terms of distinguishing between intrinsic motivation and the Zeigarnik effect as sources of reengagement motivation. It was concluded that, in the presence of self-efficacious performance feedback, the competent-incompetent impression was more salient than task-completion feedback.Preparation of this article was supported by Texas Christian University grant TCU/RF 5-23757.     

The stitching and the unstitching: What can behavior analysis have to say about creativity?

Traditional critics of behaviorism and behavior analysis have emphasized that these approaches cannot deal with creative achievements in the arts or sciences, or even in ordinary speech. This essay explores several lines of research and conceptual issues from different sources in an effort to refute this claim. The emphasis is on scientific and mathematical creativity. Some of the topics considered include the role of special practice and manipulation, conditions for development of automaticity, the interplay of contingency-controlled and rule-governed behavior, modeling, abstraction, intuition, the blending of response units, and emergent behavior. Some limitations of a behavioral account are also considered.     

Empathizing and systemizing: What are they,and what do they contribute to our understanding of psychological sex differences?

Empathizing and systemizing have recently been put forward as two important individual‐difference dimensions, whose different mean levels in men and women are argued to account for many psychological sex differences. This paper presents a series of studies designed to investigate the reliability and validity of the empathizing and systemizing quotients (EQ & SQ), to relate them to existing personality constructs, and to replicate reported sex and sexual orientation‐related differences. Correlations with interests and social behaviour suggest the two measures are valid. However, empathizing appears essentially equivalent to agreeableness in the five‐factor model of personality. Systemizing cannot be reduced to established personality dimensions, though it is moderately correlated with conscientiousness and openness. Men have higher levels of systemizing than women, and non‐heterosexual women higher than heterosexuals. However, no differences were found between heterosexual and non‐heterosexual men. Although systemizing and empathizing account for a number of observed sex differences, there are others they do not explain.     

What to wear? The influence of attire on the perceived professionalism of dentists and lawyers

Using a sample of 201 participants and a between‐subjects design, the perceived professionalism—suitability, capability, ease to talk to and friendliness—of male and female dentists and lawyers in various attires was examined. Results showed an absolute preference for male dentists and lawyers in professional and formal attire, respectively. Male dentists and lawyers in professional and formal attire were further rated as more suitable, capable, easier to talk to, and friendlier than female professionals, and than those dressed in smart or casual attire. Results are discussed in terms of positive dental outcomes and legal representation. Limitations are considered.     

What Is and Can Be Attributed to the Therapeutic Relationship?

This paper reviews findings from two studies that support the contentions of the Generic Model of Psychotherapy that therapeutic outcome must be viewed as arising from a complex interaction of common and specific factors. Patient, therapy, and relationship factors are shown to selectively add to the variance predicted in psychotherapy outcome studies. Moreover, an inspection of procedures that are common to two different therapies, and those that are unique to these approaches reveal that both contribute to outcome and do so in ways that suggest the presence of both synergistic and inhibiting effects.     

Marital commitment,money and marriage preparation: What changes after the wedding?

This paper explores conceptions of commitment and styles of money management in heterosexual couples at two points in time: Just before the wedding (T1) and about a year later (T2). It also examines the potential effects of using FOCCUS as a form of marriage preparation (MP). Forty‐two couples were recruited at T1 and randomly allocated to either A MP group and a group that would not be offered any marriage preparation ‐ the Non‐Marriage Preparation group (NMP). Individual, in‐depth, semi‐structured interviews were carried out at T1 and T2, recorded and fully transcribed. A thematic analysis (TA) yielded three themes or levels of commitment which were used to categorize couples at T1 and T2. Their money management styles were defined based on Pahl's ( 1989 ) typology. The results showed that conceptions of commitment had developed slightly overall by T2, and had been enhanced in the MP group. At T2, a more elaborated conception of commitment was associated with a greater tendency to treat money as a collective resource. Copyright © 2010 John Wiley & Sons, Ltd.     

What happens to our representation of identity as familiar faces age? Evidence from priming and identity aftereffects

Matching identity in images of unfamiliar faces is error prone, but we can easily recognize highly variable images of familiar faces – even images taken decades apart. Recent theoretical development based on computational modelling can account for how we recognize extremely variable instances of the same identity. We provide complementary behavioural data by examining older adults’ representation of older celebrities who were also famous when young. In Experiment 1, participants completed a long-lag repetition priming task in which primes and test stimuli were the same age or different ages. In Experiment 2, participants completed an identity after effects task in which the adapting stimulus was an older or young photograph of one celebrity and the test stimulus was a morph between the adapting identity and a different celebrity; the adapting stimulus was the same age as the test stimulus on some trials (e.g., both old) or a different age (e.g., adapter young, test stimulus old). The magnitude of priming and identity after effects were not influenced by whether the prime and adapting stimulus were the same age or different age as the test face. Collectively, our findings suggest that humans have one common mental representation for a familiar face (e.g., Paul McCartney) that incorporates visual changes across decades, rather than multiple age-specific representations. These findings make novel predictions for state-of-the-art algorithms (e.g., Deep Convolutional Neural Networks).