Working memory and spatial judgments: Cognitive load increases the central tendency bias

Previous work demonstrates that memory for simple stimuli can be biased by information about the distribution of which the stimulus is a member. Specifically, people underestimate values greater than the distribution’s average and overestimate values smaller than the average. This is referred to as the central tendency bias. This bias has been explained as an optimal use of both noisy sensory information and category information. In largely separate literature, cognitive load (CL) experiments attempt to manipulate the available working memory of participants in order to observe the effect on choice or judgments. In two experiments, we demonstrate that participants under high cognitive load exhibit a stronger central tendency bias than when under a low cognitive load. Although not anticipated at the outset, we also find that judgments exhibit an anchoring bias not described previously.     

Frequency and impact of trauma in older women: A military and nonmilitary sample

Understanding the impact of trauma on late-life functioning in older females is needed in order to provide best care. We explored the impact of trauma on late-life psychological and physical health and functioning among older women (n = 48) who served in the military, or participated in a military lifestyle. Eleven of these women were not veterans, but married to military personnel. Number of traumatic exposures and types of events experienced was associated with increased trauma symptom severity. Trauma symptom severity was associated with decreased physical functioning and increased pain. Increased numbing and avoidance was significantly associated with poorer physical functioning and increased pain. Older women in this study remained at risk of experiencing negative consequences of trauma in terms of increased quantity and severity of trauma symptoms and physical decline and pain. Clinical and research implications are discussed.     

An ERP investigation of regional and foreign accent processing

This study used event-related potentials (ERPs) to examine whether we employ the same normalisation mechanisms when processing words spoken with a regional accent or foreign accent. Our results showed that the Phonological Mapping Negativity (PMN) following the onset of the final word of sentences spoken with an unfamiliar regional accent was greater than for those produced in the listener’s own accent, whilst PMN for foreign accented speech was reduced. Foreign accents also resulted in a reduction in N400 amplitude when compared to both unfamiliar regional accents and the listener’s own accent, with no significant difference found between the N400 of the regional and home accents. These results suggest that regional accent related variations are normalised at the earliest stages of spoken word recognition, requiring less top-down lexical intervention than foreign accents.     

NMDA signaling in CA1 mediates selectively the spatial component of episodic memory

Recent studies focusing on the memory for temporal order have reported that CA1 plays a critical role in the memory for the sequences of events, in addition to its well-described role in spatial navigation. In contrast, CA3 was found to principally contribute to the memory for the association of items with spatial or contextual information in tasks focusing on spatial memory. Other studies have shown that NMDA signaling in the hippocampus is critical to memory performance in studies that have investigated spatial and temporal order memory independently. However, the role of NMDA signaling separately in CA1 and CA3 in memory that combines both spatial and temporal processing demands (episodic memory) has not been examined. Here we investigated the effect of the deletion of the NR1 subunit of the NMDA receptor in CA1 or CA3 on the spatial and the temporal aspects of episodic memory, using a behavioral task that allows for these two aspects of memory to be evaluated distinctly within the same task. Under these conditions, NMDA signaling in CA1 specifically contributes to the spatial aspect of memory function and is not required to support the memory for temporal order of events.     

Calling and Life Satisfaction Among Undergraduate Students: Investigating Mediators and Moderators

The present study examined the relation of calling and life satisfaction among a diverse group of undergraduate students. In line with previous research, the presence of a calling weakly correlated with life satisfaction and moderately correlated with meaning in life. Three potential moderators of the calling-life satisfaction relation were tested: religiousness, living one??s calling, and core self-evaluations. The relation of calling and life satisfaction was not different based on levels of religiousness or experiences of living one??s calling. However, the relation of calling to life satisfaction was stronger for students with low core self-evaluations. Additionally, using a multiple mediation model, academic satisfaction and life meaning were found to fully mediate the calling-life satisfaction relation. Participants more likely to view their career as a calling were more satisfied in life because of attaining greater life meaning and satisfaction within the academic domain. Implications for future research and practice are discussed.     

Maimon’s Theory of Differentials As The Elements of Intuitions

Abstract

Maimon’s theory of the differential has proved to be a rather enigmatic aspect of his philosophy. By drawing upon mathematical developments that had occurred earlier in the century and that, by virtue of the arguments presented in the Essay and comments elsewhere in his writing, I suggest Maimon would have been aware of, what I propose to offer in this paper is a study of the differential and the role that it plays in the Essay on Transcendental Philosophy (1790). In order to do so, this paper focuses upon Maimon’s criticism of the role played by mathematics in Kant’s philosophy, to which Maimon offers a Leibnizian solution based on the infinitesimal calculus. The main difficulties that Maimon has with Kant’s system, the second of which will be the focus of this paper, include the presumption of the existence of synthetic a priori judgments, i.e. the question quid facti, and the question of whether the fact of our use of a priori concepts in experience is justified, i.e. the question quid juris. Maimon deploys mathematics, specifically arithmetic, against Kant to show how it is possible to understand objects as having been constituted by the very relations between them, and he proposes an alternative solution to the question quid juris, which relies on the concept of the differential. However, despite these arguments, Maimon remains sceptical with respect to the question quid facti.     

Factors Influencing Olympic Performance: Interviews with Atlanta and Negano US Olympians

To gain a better understanding of factors perceived to have positively and/or negatively influenced Olympic athlete performance and to examine differences in performance factors cited by athletes who met or exceeded performance expectations and athletes who failed to meet expectations, 8 Atlanta and 7 Nagano Olympians were interviewed. Interviews were conducted via telephone, tape recorded, transcribed, and content analyzed by three investigators. Major factors perceived to have positively influenced performance included mental skills and preparation, attitude towards the Olympics, support services and support facilitation, multifaceted preparation, physical preparation, and coaching. Major factors perceived to have negatively influenced performance included departing from normal routine, media distractions, coach issues, overtraining, and injury. The two groups, those who met or exceeded expectations and those who did not meet expectations, differed on only a few positive performance factors, including attitude towards the games, Olympic housing, and team unity. Negative factors that differed between the groups included team selection, coaching, lack of support, and team issues.     

Possible Environmental Causes of Stages in Moral Reasoning

Both children (6-, 10-, and 14-year-olds) and their mothers were interviewed. The children's responses to moral dilemmas were classified into Kohlberg's three main categories—preconventional, conventional, and postconventional. The mothers were presented with a variety of hypothetical situations—e.g., they had just found out that their child had stolen something, and were asked to tell what they would say or do to their child in each situation. The mothers' hypothetical responses to such situations were divided into either the preconventional, conventional, or postconventional category depending on the level or moral reasoning such responses would imply to their children. The results indicated that as the age of the children increased, both the level of moral reasoning used by the children and the level of moral reasoning implied by the mothers' treatment of the children increased. Even with age partialed out, there was a significant positive relationship between the mothers' implied level of moral reasoning and the children's level of moral reasoning. Thus, although causality cannot be established, the results indicate that there is at least the possibility that environmental changes—i.e., changes in the way the mother treats the child—may be responsible for the appearance of stages in the child's development of moral reasoning.     

Children’s social cognition about proactive aggression

In this study, 6- and 9-year-old children (N = 258) observed two instances of proactive aggression (one relational and the other direct aggression) that were committed by members of a group toward out-group members. Participants were either members of the group or independent observers. Analyses of participants’ social cognition about the aggressor and the aggression (cause of aggression, moral judgment of aggression, attitudes toward the aggressor, and exclusion of the aggressor) indicated that, overall, group members were more positive toward aggressors than were independent observers. Although intergroup competition was perceived to be the cause of the aggression, participants disapproved of both types of aggression (especially direct aggression), disapproval increased with age, and girls disapproved of relational aggression more than did boys. Group members’ social cognition about the aggressor and the aggression comprised a coherent cognitive process for both types of aggression, but the observers’ process was simpler and differed by aggression type.     

Pet Bereavement Support Groups: A Guide for Mental Health Professionals

Companion animals are becoming increasingly important in society. Pets have been recognized for their vast contributions to human lives, including emotional support, social support, health benefits, and connection. However, society does not recognize the significant loss associated with losing a pet, which can contribute to bereaved pet owners feeling isolation and shame as they cope with the loss of their beloved companion. Mental health professionals must be aware of this disenfranchised grief and creatively expand their services to provide support and advocacy for bereaved pet owners. This article includes a framework for clinicians to establish a pet loss support group in their community.