The effect of expectation on the identification of known and unknown persons

In this experiment we investigated the influence of expectation, exposure time and jacket hood positioning on person identification. Thirty subjects, all employees of the TNO Institute for Perception, participated in the experiment. They were presented with slides showing known and unknown persons who were photographed under bad lighting conditions. Limited viewing conditions considerably deteriorated subjects' performance and under these circumstances all experimental manipulations significantly affected identification accuracy. Contrary to what was expected longer exposure times impaired performance. The results are discussed in light of recent research on face recognition (Bruce and Young, 1986; Read, Vokey, and Hammersley, 1990).     

Holding an object one is looking at: Kinesthetic information on the object’s distance does not improve visual judgments of its size

Visual judgments of distance are often inaccurate. Nevertheless, information on distance must be procured if retinal image size is to be used to judge an object’s dimensions. In the present study, we examined whether kinesthetic information about an object’s distance—based on the posture of the arm and hand when holding it—influences the object’s perceived size. Subjects were presented with a computer simulation of a cube. This cube’s position was coupled to that of a rod in the subject’s hand. Its size was varied between presentations. Subjects had to judge whether the cube they saw was larger than, smaller than, or the same size as a reference. On some presentations, a small difference was introduced between the positions of the rod and of the simulated cube. When the simulated cube was slightly closer than the rod, subjects judged the cube to be larger. When it was farther away, they judged it to be smaller. We show that these changes in perceived size are due to alterations in the cube’s distance from the subject rather than to kinesthetic information.     

All is well that ends well,at least for proselfs: emotional reactions to equality violation as a function of social value orientation

In step‐level public good dilemmas the equality rule serves as an important distribution rule to tacitly coordinate group members' decisions. In two studies, we examined the motives that may underlie the use of the equality rule. More specifically, we examined whether people use the equality rule out of fairness concerns or out of efficiency concerns. For this purpose, we assessed people's emotional reactions toward a violator of the equality rule when the group succeeded vs. failed, as a function of social value orientation. The results of both experiments showed that proselfs' emotional reactions towards a violator were a function of the success or the failure of the group, whereas prosocials' emotional reactions did not vary as a function of the outcome feedback. These results suggest that prosocials prefer the equality rule out of fairness concerns whereas for proselfs efficiency concerns dominate. Copyright © 2005 John Wiley & Sons, Ltd.     

Simultaneous processing of visual information and planning of hand movements in a visuo-manual search task

When searching for a target with eye movements, saccades are planned and initiated while the visual information is still being processed. If hand movements are needed to perform a search task, can they too be planned while visual information from the current position is still being processed? To find out we studied a visual search task in which participants had to move their hand to shift a window through which they could see the items. The task was to find an O in a circle of Cs. The size of the window and the sizes of the gaps in the Cs were varied. Participants made fast, smooth arm movements between items and adjusted their movements, when on the items, to the window size. On many trials the window passed the target and returned, indicating that the next movement had been planned before identifying the item that was in view.     

Challenging the Leader or the Follower: Influence of Need for Emotion and Equality Violations on Emotional and Retributive Reactions in Social Dilemmas1

Research has shown that if equality is violated in public‐good dilemmas, group members react with more anger if another group member (a follower), rather than if the leader violates equality. The present research argued that people's personality—particularly, need for emotion—moderates group members’ reactions if equality is violated by either the leader or a follower. Results revealed that group members low in need for emotion reacted with more anger and were more inclined to exclude the violator if this person was a follower, rather than the leader of the group. Group members high in need for emotion, however, reacted with more anger and wished to exclude the violator more if this person was the leader, rather than a follower.     

Palliative sedation until death: an approach from Kant’s ethics of virtue

This paper is concerned with the moral justification for palliative sedation until death. Palliative sedation involves the intentional lowering of consciousness for the relief of untreatable symptoms. The paper focuses on the moral problems surrounding the intentional lowering of consciousness until death itself, rather than possible adjacent life-shortening effects. Starting from a Kantian perspective on virtue, it is shown that continuous deep sedation until death (CDS) does not conflict with the perfect duty of moral self-preservation because CDS does not destroy capacities for agency. In addition, it is argued that CDS can frustrate the imperfect duty of self-cultivation by reducing consciousness permanently. Nevertheless, there are cases where CDS is morally acceptable, namely, cases where the agent has already permanently lost the possibility for free action in advance of sedation—for example, due to excruciating and ongoing pain. Because the latter can be difficult to diagnose properly, safeguards may be needed in order to prevent the application of CDS for the wrong reasons.

A Christian Cancellation of the Secularist Truce? Waning Christian Religiosity and Waxing Religious Deprivatization in the West

Analysis of International Social Survey Program (ISSP) data collected in 18 Western countries in 1998 demonstrates that Christian desires for a public role of religion are strongest in countries where Christian religiosity is numerically most marginal. Moreover, Dutch data covering the period 1970–1996 confirm that the decline of the number of Christians in the Netherlands has been coincided by a strengthening of the call for public religion among the remaining faithful and by increased polarization about this with the nonreligious. Religious decline and religious privatization, two of the most crucial dimensions of secularization ( Casanova 1994 ), hence develop dialectically: as the number of Christians declines, the remaining faithful seem increasingly unwilling to accept the “secularist truce”—the secularist contract that guarantees religious freedom yet bans religion from the public sphere by relegating it to the private realm.     

When being disadvantaged grows into vengeance: The effects of asymmetry of interest and social rejection in social dilemmas

In public good dilemmas, group members often differ in the extent to which they benefit from provision of the public good (asymmetry of interest). In the current paper, we argue that people may readily accept such financial differences in interest when their social needs are met by being accepted by the others. When people are socially rejected, however, members having a low rather than a high interest in the public good may display negative emotional and retributive reactions. This reasoning was supported by the findings of a first experimental study in which we manipulated people's interest in the public good and social rejection. These effects were replicated in a second experimental study and it was further shown that this two‐way interaction between social rejection and interest in the public good was moderated by people's social value orientation. The negative reactions to low interest (vs. high interest) in the public good when being socially rejected were especially prominent among group members with a proself orientation. Taken together, the current studies illustrate the importance of studying how financial and social needs interact to determine emotional and retributive actions in social dilemmas. Copyright © 2008 John Wiley & Sons, Ltd.     

Effects of texture and shape on perceived time to passage: knowing "what" influences judging "when"

In the present study, we examined whether it is easier to judge when an object will pass one's head if the object's surface is textured. There are three reasons to suspect that this might be so: First, the additional (local) optic flow may help one judge the rate of expansion and the angular velocity more reliably. Second, local deformations related to the change in angle between the object and the observer could help track the object's position along its path. Third, more reliable judgments of the object's shape could help separate global expansioncaused by changes in distance from expansion due to changes in the angle between the object and the observer. We can distinguish among these three reasons by comparing performance for textured and uniform spheres and disks. Moving objects were displayed for 0.5-0.7 sec. Subjects had to decide whether the object would pass them before or after a beep that was presented 1 sec after the object started moving. Subjects were not more precise with textured objects. When the disk rotated in order to compensate for the orientation-related contraction that its image would otherwise undergo during its motion, it appeared to arrive later, despite the fact that this strategy increases the global rate of expansion. We argue that this is because the expected deformation of the object's image during its motion is considered when time to passage is judged. Therefore, the most important role for texture in everyday judgments of time to passage is probably that it helps one judge the object's shape and thereby estimate how its image will deform as it moves.     

Psychological essentialism and the differential attribution of uniquely human emotions to ingroups and outgroups

According to the psychological essentialism perspective, people tend to explain differences between groups by attributing them different essences. Given a pervasive ethnocentrism, this tendency implies that the human essence will be restricted to the ingroup whereas outgroups will receive a lesser degree of humanity. Therefore, it is argued that people attribute more uniquely human characteristics to the ingroup than to the outgroup. The present article focuses on secondary emotions that constitute such characteristics. Study 1 showed that members of high‐ and low‐status groups attribute more positive secondary emotions to the ingroup than to the outgroup. Study 2 verified that the differential attribution extended also to negative secondary emotions. No exemplars of emotions were provided in Study 3. Instead, participants had to estimate the means of two distributions of numbers that supposedly represented characteristics of the ingroup and of the outgroup. The results of this third experiment illustrated the reluctance to attribute secondary emotions to the outgroup. The findings are discussed from the perspective of psychological essentialism. Copyright © 2001 John Wiley & Sons, Ltd.