Video‐game training and naïve reasoning about object motion

Naïve conceptions and associated misconceptions about object motion arise in part from limitations on perceptual experience. Certain commercial video games, such as Enigmo, provide interactive experience with realistic trajectories and practice at purposefully manipulating those trajectories. We tested the possibility that this experience could modify naïve intuitions about object motion, bringing them into closer alignment with Newtonian principles of mechanics. Fifty‐one middle‐school children were randomly assigned to play either Enigmo or a strategy game for six sessions. Only the Enigmo group improved their ability to generate realistic trajectories, but this improvement was limited to learning about the general parabolic shape of trajectories. After training, both groups received a 30‐minute tutorial on Newtonian principles which generated a much larger improvement in producing realistic trajectories than did game play. This improvement was of similar magnitude in both training groups, indicating that gaming experience provided no advantage in deriving benefits from direct instruction. Copyright © 2010 John Wiley & Sons, Ltd.     

Representations of Family Practices, Belief in Sex Differences, and Sexism

Two hundred twenty-one adults and young adults answered one of three versions of a questionnaire of opinion scales, which induced a comparison between three pairs of targets (husband and wife; husband and home helper; wife and home helper). After they evaluated the targets’ contributions to family work, participants judged whether the contributions were fair and satisfactory. Then participants’ degree of belief in sex differences and level of sexism were measured. Results show that spouses’ contributions are only judged satisfactory when wife was compared with home helper; male respondents’ reported that they believed more strongly in sex differences when husband and wife were compared; men’s and women’s level of benevolent sexism did not differ when husband was compared with home helper.     

Increasing intolerance of uncertainty over time: the potential influence of increasing connectivity

Anxiety levels have increased for several decades, despite objective indicators of historically unprecedented safety. A perceived inability to tolerate uncertainty or distress motivates individuals experiencing anxiety to engage in safety behaviors. Mobile phones provide unrestricted access to safety cues intended to reduce uncertainty and therein anxiety; however, recurrent engagement in reassurance seeking behaviors paradoxically increases anxiety. The current research was designed to assess whether self-reported intolerance of uncertainty (IU) levels may have been increasing and, if so, whether the increases correlate positively with mobile phone penetration and Internet usage. A cross-temporal meta-analysis was conducted using data from 52 North American studies exploring IU as well as social indicator data from several public sources. A statistically significant increase in IU levels occurred from 1999 to 2014, correlated with increases in mobile phone penetration and Internet usage. As hypothesized, IU levels appeared to be increasing over time and the increases correlate positively with mobile phone penetration and Internet usage. The results support the possibility that mobile phones increase reassurance seeking, acting as safety cues, and reducing spontaneous, everyday exposures to uncertainty, which may ultimately potentiate psychopathology by increasing IU and anxiety. Subsequent experimental research to assess for causality appears warranted. Limitations and directions for future research are presented.     

Lessons for an Outsider:A Family Therapist's Experience in Bolivia

This is a reflection on cross-cultural therapy from the perspective of a practitioner and trainer who is an outsider to the culture in which she is working. The context is work in Bolivia. The therapist's own position, the process of interaction and the influences on the family of its context are considered. Cultural notes are provided to highlight what an outsider may represent, and the legitimacy of his involvement and intervention in family situations. Themes frequently encountered in therapy are reviewed including jealousy, violence and the changing societal relationship between men and women. The usefulness of getting to know the cultural background of such themes, including the possibility of exploring them anew in therapy, is examined. Finally, a case study is presented related to the themes which also illustrates the adaptation of process to fit patient's culturally related expectations.     

Age-related changes in verbal and nonverbal memory during early childhood

In the present experiment, age-related changes in verbal and nonverbal memory performance by 2- to 4-year-old children were assessed. All children participated in the same unique event, and their memory of that event was assessed after a 24-hr delay. Overall, children's performance on each memory measure increased as a function of age. Furthermore, children's performance on both the verbal and nonverbal memory tests was related to their language ability; children with more advanced language skills reported more during the verbal interview and exhibited superior nonverbal memory relative to children with less advanced language skills. Finally, children's verbal recall of the event lagged behind both their nonverbal recall and their general verbal skill. It is hypothesized that despite large strides in language acquisition. preschool-age children continue to rely primarily on nonverbal representations of past events. The findings have important implications for the phenomenon of childhood amnesia.     

Negative emotional appraisal selectively disrupts retrieval of expected outcome values required for goal-directed instrumental choice*

Stress induction reduces people's ability to modify their instrumental choices following changes in the value of outcomes, but the mechanisms underpinning this effect have not been specified because previous studies have lacked crucial control conditions. To address this, the current study had participants learn two instrumental responses for food and water, respectively, before water was devalued by specific satiety. Choice between these two responses was then measured in extinction, reacquisition and Pavlovian to instrumental transfer (PIT) tests. Concurrently during these tests, a negative emotional appraisal group evaluated aversive images (stress induction), whereas a control group evaluated neutral images, at the same time as choosing between the two instrumental responses. Negative emotional appraisal abolished the impact of water devaluation on instrumental choice in the extinction test, but did not affect instrumental choice in the reacquisition or PIT tests. These findings suggest that negative emotional appraisal selectively impaired participants’ ability to retrieve the expected value of outcomes required to make goal-directed instrumental choices in the extinction test, and that this effect was not due to task disengagement, nullification of the devaluation treatment or impaired knowledge of response-outcome relationships.     

The effects of intervening experiences on children's memory for a physical examination

To examine the extent to which children's long‐term retention is influenced (both positively and negatively) by intervening events, the impact of three programmed experiences on later recall of the details of a physical examination was explored. Four groups of 3‐ and 5‐year‐olds were established, with all children being interviewed immediately after their check‐ups and then again after 12 weeks. The groups, however, differed in terms of their experiences midway through the delay interval. At each age level, children in three experimental groups received either a complete interview about the physical examination, a return visit to the pediatrician's office, or an opportunity to view a videotape that showed a child receiving an actual check‐up. Children in a fourth group served as controls in that they were not seen during the delay period. Recall of standard features was scored, along with responses to questions concerning procedures that did not occur. The results indicated mixed mnemonic effects for the differential intervening experiences. In comparison to the control group, children at each age who had received an additional interview or who had observed the videotape showed elevated open‐ended recall at the 12‐week interview. In addition, the videotape manipulation, as well as the return visit to the doctor's office, was associated with a marked decrease in the 5‐ but not the 3‐year‐olds' accuracy regarding questions about activities not included in the physical examinations. The results are discussed in terms of factors that affect the facilitation and distortion of memory over long temporal delays. Copyright © 2000 John Wiley & Sons, Ltd.     

An examination of behavioral consistency using individual behaviors or groups of behaviors in serial homicide

Establishing behavioral consistency in serial homicide offending behavior is essential when linking homicides together and to a common offender. An examination of 35 serial homicide behaviors utilized by 90 offenders in 450 serial homicide cases was carried out to identify whether these offenders consistently performed the same behaviors across their series of homicides and whether it is more effective to examine individual behaviors or groupings of behaviors in order to identify behavioral consistency. This study provides the first empirically based evidence testing the use of using single behaviors as linking factors in linking homicide cases in a series, and shows that this method has inherent difficulties in accomplishing this, thus providing the first wave of empirical testing that questions current theories in the literature on serial homicide, which has suggested that signatures or specific key behaviors are important in understanding the consistency in an offender's behavior across the crimes. Recommendations for future studies on linking using signatures are suggested, including a more in-depth qualitative empirical evaluation of individual series.     

Visual self-recognition in mirrors and live videos: Evidence for a developmental asynchrony

Three experiments (N = 123) investigated the development of live-video self-recognition using the traditional mark test. In Experiment 1, 24-, 30- and 36-month-old children saw a live video image of equal size and orientation as a control group saw in a mirror. The video version of the test was more difficult than the mirror version with only the oldest children's performance approaching ceiling. In Experiment 2, most 24-month-olds showed self-recognition when presented with a TV-set that featured a mirror in place of a screen. This finding does not substantiate the possibility that expectations about what appears on TV are responsible for the asynchrony. In Experiment 3, children were given a mark-test involving only their legs. Again, a video version was more difficult than previously reported performance with mirrors, suggesting that the impossibility of eye-contact in video cannot explain this developmental asynchrony. The findings suggest that self-recognition can be added to the growing list of contexts in which 2-year-olds display what has been called a “video deficit” [Anderson, D. R., & Pempek, T. A. (2005). Television and very young children. American Behavioral Scientist, 48, 505–532].