Digit ratio (2D:4D) and aggregate personality scores across nations: Data from the BBC internet study

The purpose of this study was to consider relationships between digit ratio (2D:4D, a putative correlate of prenatal sex steroids) and aggregate personality scores across nations. Differences in national personality scores may be influenced by such factors as prevalence of the parasite Toxoplasma gondii, latitude and economics, and variation in 2D:4D has also been linked to prevalence of T. gondii and to latitude. Here we report associations of mean 2D:4D per country and latitude, gross domestic product (GDP), T. gondii prevalence and personality profiles in 23 nations of an internet study. 2D:4D was not related to latitude or to T. gondii, but was related to GDP (women only). With regard to national personality scores, 2D:4D was not related to masculinity but there were significant positive relationships of 2D:4D with uncertainty avoidance in men and women and with neuroticism in men. Male 2D:4D was significantly related to uncertainty avoidance and neuroticism independent of T. gondii, whereas female 2D:4D was not significantly related to uncertainty avoidance or neuroticism after controlling for the effect of T. gondii and GDP. We conclude that nations with high male 2D:4D (low prenatal testosterone, high prenatal oestrogen) have high scores for uncertainty avoidance and neuroticism.     

Motor inhibition, reflection impulsivity, and trait impulsivity in pathological skin picking

Pathological skin picking (PSP) is often recognized as an impulse control disorder. The current study sought to investigate the relationship between PSP and different forms of impulsivity. University students that met criteria for PSP (n = 55) and university students without history of PSP (n = 55) answered a multidimensional impulsivity questionnaire (the UPPS Impulsive Behavior Scale) and completed 2 neurocognitive tasks that assess impulsivity (the Stop Signal Task and the Information Sampling Task). The PSP group scored significantly higher than the control group on the negative and positive urgency subscales of the UPPS, but the groups did not differ on other subscales or the neurocognitive tasks. Logistic regression demonstrated that the urgency scales added to the prediction of PSP after negative affect and other forms of impulsivity were adjusted for. The results indicate that PSP sufferers are characterized by emotion-based impulsivity and do not appear to be impulsive in other ways.     

What's so different about Lacan's approach to psychoanalysis?

Clinical work based on Lacanian principles is rarely compared in the psychoanalytic literature with that based on other principles. The author attempts to highlight a few important theoretical differences regarding language, desire, affect, and time between a Lacanian approach and certain others that lead to differences in focus and technique, related, for example, to interpretation, scansion, and countertransference. Lacanian techniques are illustrated with brief clinical vignettes. In the interest of confidentiality, identifying information and certain circumstances have been changed or omitted in the material presented.     

Factors Associated With Physical Aggression Among US Army Soldiers

There are a growing number of studies that have approximated levels of aggression and associated outcomes among combat veterans returning from Iraq and Afghanistan using brief screening assessments. However, further research to evaluate the relative role of combat exposures and overt physical behaviors is required to further elucidate potential associations between military service, combat deployment, and overt physical aggression. The purpose of the current study was to assess the prevalence of self‐reported physical aggression in a sample of US Army soldiers using an adaptation of the Revised Conflict Tactics Scale (CTS2), and examine factors associated with higher levels of aggression. A population‐based cross‐sectional study was conducted at a single US Army Installation within a sample of active duty US Army soldiers (n = 6,128) from two large units. Anonymous surveys were collected 6 months following deployment to measure overt aggressive behaviors, posttraumatic stress disorder, anxiety, depression, traumatic brain injury, and misuse of alcohol. There were a relatively higher number of minor and severe physical overt aggressive actions reported among soldiers who previously deployed, notably highest among deployed soldiers reporting the highest levels of combat intensity. Soldiers screening positive for the misuse of alcohol were also significantly more likely to report relatively higher levels of physical aggression. This study quantified overt aggressive behaviors and associated factors, showing increasing combat exposures may result in increased physical aggression. Clinicians treating service members returning from combat may consider assessing relative levels of combat. Aggr. Behav. 38:357‐367, 2012. Published 2012 Wiley Periodicals, Inc.?     

Decrease of prefrontal-posterior EEG coherence: loose control during social-emotional stimulation

In two experiments we aimed to investigate if individual differences in state-dependent decreases or increases of EEG coherence between prefrontal and posterior cortical regions may be indicative of a mechanism modulating the impact social-emotional information has on an individual. Two independent samples were exposed to an emotional stimulation paradigm in which the participants were invited to get involved and sympathize with the persons they were watching (study 1) or listening to (study 2), and who were expressing sadness or anxiety. The two studies yielded consistent results. Higher scores in trait absorption and in the propensity to ruminate were associated with decreased EEG beta coherence during the stimulation, whereas coherence increased in individuals low in absorption or rumination. Coherence changes did not predict to which degree the participants felt infected by the displayed emotions, but in individuals showing decreased prefrontal-posterior coupling during the stimulation, feelings of sadness and anxiety had a greater tendency to persist. The findings suggest that more loose prefrontal-posterior coupling may be related to loosening of control of the prefrontal cortex over incoming social-emotional information and, consequently, to deeper emotional involvement and absorption, whereas increased prefrontal-posterior coupling may be related to strong control, dampening of emotional experience, and not letting oneself become emotionally affected.     

Further investigation of the validity and reliability of the photographic figure rating scale for body image assessment

Previous studies have not fully investigated the psychometric properties of the Photographic Figure Rating Scale (PFRS). In 2 studies, we report on the test-retest reliability and convergent validity of ratings derived from the PFRS. In Study 1, 322 female university students in Britain provided self-ratings on the PFRS and objectively measured body mass index (BMI); a subsample of 132 women also completed the task after 5 weeks. In Study 2, 243 women from the community in Austria completed the PFRS along with a battery of other body image scales. Results of Study 1 showed that ratings on the PFRS had good test-retest reliability (all rs > .87) and good convergent validity in relation to BMI. Results of Study 2 showed that PFRS-derived body dissatisfaction scores were significantly correlated with a range of body image variables. These results provide evidence for the convergent validity and good test-retest reliability of the PFRS.     

Creativity and schizotypy from the neuroscience perspective

Behavioral research has revealed that some cognitive features may be similar between creative and psychotic/schizophrenic-like thoughts. In this study, we addressed the potential link between creativity and schizotypy at the level of the brain by investigating functional patterns of brain activity (using functional magnetic resonance imaging) during creative cognition in preselected groups with low versus high psychometrically determined schizotypy. Our findings revealed an association between the originality component of creativity and reduced deactivation of right parietal brain regions and the precuneus during creative cognition, congruent with the idea that more-creative people may include many more events/stimuli in their mental processes than do less-creative people. Similarly, the high-schizotypy group showed weaker deactivation of the right precuneus during creative cognition. The fact that originality and schizotypy show similar functional brain activity patterns during creative ideation (i.e., reduced deactivation of the right precuneus) strongly supports the contention that similar mental processes may be implicated in creativity and in psychosis proneness.     

Religion,difference and the promise of liberal political theory: on Abeysekara's The Politics of Postsecular Religion

Ananda Abeysekara's work revolves around the ‘aporia of our democratic existence.’ This review offers a close analysis of this puzzle and then connects it to the historical process whereby the internal dynamics of western Christianity gave shape to normative political theory. Normative political models have a peculiar relation to the empirical world. At any point, one can judge the factual empirical situation in a liberal democracy – no matter what that factual situation is – as deficient vis-à-vis norms like equality, freedom of expression, religious freedom and separation of church and state. The trouble is that we do not know what the ‘complete’ fulfillment of these norms would look like. Still, these norms propel political analysis: as Abeysekara notes, classical and postcolonial studies of conflict in Sri Lanka build on a set of deep-seated norms about ‘difference,’ ‘unity’ and ‘humanism,’ which have emerged from the Christian dynamic of universalization that laid the foundations of liberal political theory.     

Elicitation and Inhibition of Competitive Fighting in Food Deprived Mice

Habituation as an index of the intrasensory and intersensory integration of form was investigated in nine-year-old children. In Habituation Period One, Ss were habituated to either a visual or a haptic 14″-perimeter standard stimulus. During Habituation Period Two, groups were subdivided and presented with one of the following stimuli: (a) 14″ visual, (b) 16″ visual, (c) 14″ haptic, or (d) 16″ haptic. The dependent variables were GSR frequency and amplitude, visual fixation time, and touching time. Subjects required more trials to habituate to the different stimulus presented in Habituation Period Two than Ss who received repeated presentations of the same stimulus. GSR frequency and amplitude habituated more consistently than did fixation and touching response measures. The results supported the use of the habituation paradigm for the study of intersensory and intrasensory integration, as well as providing support for extending Sokolov's theory to intersensory functions.     

Perception of acoustically presented time series with varied intervals

Data from three experiments on serial perception of temporal intervals in the supra-second domain are reported. Sequences of short acoustic signals (“pips”) separated by periods of silence were presented to the observers. Two types of time series, geometric or alternating, were used, where the modulus 1 + δ of the inter-pip series and the base duration T_b (range from 1.1 to 6 s) were varied as independent parameters. The observers had to judge whether the series were accelerating, decelerating, or uniform (3 paradigm), or to distinguish regular from irregular sequences (2 paradigm). “Intervals of subjective uniformity” (isus) were obtained by fitting Gaussian psychometric functions to individual subjects' responses. Progression towards longer base durations (T_b = 4.4 or 6 s) shifts the isus towards negative δs, i.e., accelerating series. This finding is compatible with the phenomenon of “subjective shortening” of past temporal intervals, which is naturally accounted for by the lossy integration model of internal time representation. The opposite effect observed for short durations (T_b = 1.1 or 1.5 s) remains unexplained by the lossy integration model, and presents a challenge for further research.