Subjective age in a modern Japanese young, middle-age, and upper middle-age sample

The subjective age perception of a Japanese sample of 1,459 (ages in the 20s to 80s) was surveyed, and participants were asked to give their subjective psychological ages. Irrespective of the cohort, participants felt their subjective age to be younger than their chronological age, and a cohort difference was found in the size of the discrepancy. The middle- and upper middle-age generations (50s, 60s, 70s, and 80s) showed a larger discrepancy than that of prior tested young adults (20s and 30s). A cross-cultural comparison was conducted, and possible reasons for the discrepancy between subjective and chronological ages were examined.     

Reopening the study of extreme social behaviors: Obedience to authority within an immersive video environment

In this study, we used a paradigm similar to the one used by Milgram in his classic obedience study, using an immersive video environment. We manipulated the victim's degree of visibility and his ethnicity. When the victim was hidden, the level of obedience we obtained was similar to Milgram's. Replicating previous findings observed in real environments, participants were more obedient when the victim was hidden than when he was visible, and the more obedient participants negated their own responsibility by projecting responsibility on both the victim and the experimenter. State‐anger and right‐wing authoritarianism (RWA) emerged as two significant predictors of the level of obedience. Illustrating an underlying process of racial‐dehumanization, participants reported less anxiety and distress when the victim was a North African than when the victim was of the same racial origin as the participant. These results underscore the usefulness of using immersive environments when studying extreme social behaviors. Copyright © 2009 John Wiley & Sons, Ltd.     

Firstborns' disadvantage in kinship detection

The ability to assess genetic ties is critical to defining one's own family and, in a broader context, to understanding relationships in groups of strangers. To recognize younger siblings as such, human firstborns can rely on the perinatal association of the mother with her new baby. Later-borns, who cannot rely on such an association, will by necessity actuate alternate strategies, such as recognition of facial clues set aside by firstborns. The effects of such differential early experiences deserve consideration; the development of matching abilities may be used throughout an individual's lifetime to detect other kinship types outside the family. In simple cognitive tasks based on matching face pictures, later-borns surpassed firstborns in detecting kinship among strangers; this pattern was found in populations of different ages and in two countries. This birth-order effect contrasts with the traditional cognitive advantage of firstborns. Inclusive fitness theory explains how early life history promotes specific strategies that can, in turn, permanently enhance human performance in certain domains.     

Parenting in an Individualistic Culture with a Collectivistic Cultural Background: The Case of Turkish Immigrant Families with Toddlers in the Netherlands

Expanding our knowledge on parenting practices of immigrant families is crucial for designing culturally sensitive parenting intervention programs in countries with high immigration rates. We investigated differences in patterns of parenting between second-generation immigrant and native families with young children. Authoritarian and authoritative control and sensitivity of second-generation Turkish immigrant mothers of 2-year-old children (n = 70) and native Dutch mothers (n = 70) were observed in the home and in the laboratory. Controlling for maternal age and education, Turkish immigrant mothers were less supportive, gave less clear instructions to their children, were more intrusive and were less authoritative in their control strategies than native Dutch mothers. No differences were found in authoritarian control. In both ethnic groups supportive presence, clarity of instruction, authoritative control, and low intrusiveness loaded on one factor. No differences between ethnic groups were found in gender-differentiated parenting. Maternal emotional connectedness to the Turkish culture was associated with less authoritative control, whereas more use of the Turkish language was related to more sensitivity. Even though mean level differences in parenting behaviors still exist between second-generation Turkish immigrant and native Dutch mothers, the patterns of associations between parenting behaviors were comparable for both groups. This suggests that existing parenting interventions for native families may be applicable to second-generation Turkish immigrants as well.     

Cognitive rigidity in patients with depression and fibromyalgia

Background/ObjectiveThe comorbidity of depression and fibromyalgia chronic syndrome has been well documented in the literature; however, the cognitive structure of these patients has not been assessed. Previous results reported variability in cognitive rigidity in depressive patients, the key for this might be the presence of chronic physical pain such as fibromyalgia. The present study explores and compares the cognitive rigidity and differentiation, between patients with depression with and without fibromyalgia syndrome.MethodThirty one patients with depression and fibromyalgia were matched, considering age, sex and number of depressive episodes, with 31 patients with depression but without fibromyalgia diagnosis. Cognitive rigidity and differentiation were measured with the repertory grid technique.ResultsThe results indicated that depressed patients with fibromyalgia presented higher levels of depressive symptoms, greater cognitive rigidity and lower cognitive differentiation than those without fibromyalgia.ConclusionsThe results might inform future treatments to address the cognitive structure of these patients.     

Do attentional capacities and processing speed mediate the effect of age on executive functioning?

The executive processes are well known to decline with age, and similar data also exists for attentional capacities and processing speed. Therefore, we investigated whether these two last nonexecutive variables would mediate the effect of age on executive functions (inhibition, shifting, updating, and dual-task coordination). We administered a large battery of executive, attentional and processing speed tasks to 104 young and 71 older people, and we performed mediation analyses with variables showing a significant age effect. All executive and processing speed measures showed age-related effects while only the visual scanning task performance (selective attention) was explained by age when controlled for gender and educational level. Regarding mediation analyses, visual scanning partially mediated the age effect on updating while processing speed partially mediated the age effect on shifting, updating and dual-task coordination. In a more exploratory way, inhibition was also found to partially mediate the effect of age on the three other executive functions. Attention did not greatly influence executive functioning in aging while, in agreement with the literature, processing speed seems to be a major mediator of the age effect on these processes. Interestingly, the global pattern of results seems also to indicate an influence of inhibition but further studies are needed to confirm the role of that variable as a mediator and its relative importance by comparison with processing speed.     

A neurobehavioral investigation into judgmental processes: effect of bilateral motor behaviors

Two experiments were conducted in order to examine how different bilateral motor activations of the approach and avoidance motivational systems influenced participants' evaluations of valenced stimuli (figurative expressions and pictures of everyday situations). The first Study (Study 1) showed that participants judged valenced expressions according to the motor congruence model put forward by Cretenet and Dru (2004). This may depend on the compatibility of the valenced stimuli with the congruency of the bilateral motor behaviors that involved two unilateral motor behaviors that are congruent to each other. These results were duplicated in Study 2 with the use of valenced pictures taken from the International Affective Picture System. The overall results shed new light on the influence of motor behaviors on judgments, by determining the motor system as operative in evaluative mechanisms, and not merely a simple executive function of higher cognitive processes.     

Clinical validation of the trait and state versions of the Food Craving Questionnaire

This is the first study to evaluate the psychometric properties of the Food Craving Questionnaire-Trait (FCQ-T), and Food Craving Questionnaire-State (FCQ-S) measures using a clinically heterogeneous sample of eating disorder patients (N = 177) recruited from seven different outpatient eating disorder treatment centers in Spain. Confirmatory factor analyses (CFAs) corroborated the factor structures of the FCQ-T and FCQ-S. The measures' scores and their factor-derived scale-scores yielded internal consistency reliability indexes that ranged from adequate to excellent. The measures were predictive of eating disorder symptoms. As expected, the FCQ-T was more strongly associated with eating disorder psychopathology than the FCQ-S. The results replicated the psychometric properties of the FCQ-T and FCQ-S in eating disorder populations and could become useful tools in clinical and research settings.     

Differential sensitivity of recent vs. remote memory traces to extinction in a water-maze task in rats

Extinction has mostly been studied in conditioning paradigms, more sparsely in spatial tasks, and never as a function of the age of a spatial memory. Using rats, we compared the time-course of extinction of a recent (5 days) vs. remote (25 days) spatial memory in a water maze, over three probe trials. When the trials were set 24h apart, performance in the remote memory group was significantly worse on the first probe trial and significantly better on the third probe trial, as compared to the recent memory group, thereby showing differences between cognitive operations underlying recent vs. remote memory extinction. In contrast, when trials were given consecutively, both groups showed a similar profile of extinction. Furthermore, in a room with overly-salient cues providing a strong remote memory trace, no difference between groups was observed when the spaced extinction paradigm was used. These results might be related to a balance between reconsolidation and extinction processes occurring after a first retrieval experience, of which the outcome may depend on the extinction protocol, and on the age and strength of a memory.