Performance on a face perception task is associated with empathy quotient scores, but not systemizing scores or participant sex

This preliminary study investigated whether individual differences in performance on a difficult social perception task (determining the sex of shape normalized, line drawn dynamic faces) are related to sex of observer, scores on an empathy quotient and scores on a systemizing quotient. Performance in the face perception task (N = 60) was above chance, indicating that participants could judge the sex of the degraded facial stimuli from dynamic information alone. There was a trend for women to be more accurate in their judgments of target sex than men, but regression analyses indicated that EQ scores alone predicted performance on the task. This study suggests that empathy may mediate sex differences in face perception abilities, and potentially other tasks in social perception.     

The perception of positive and negative facial expressions by unilateral stroke patients

There remains conflict in the literature about the lateralisation of affective face perception. Some studies have reported a right hemisphere advantage irrespective of valence, whereas others have found a left hemisphere advantage for positive, and a right hemisphere advantage for negative, emotion. Differences in injury aetiology and chronicity, proportion of male participants, participant age, and the number of emotions used within a perception task may contribute to these contradictory findings. The present study therefore controlled and/or directly examined the influence of these possible moderators. Right brain-damaged (RBD; n = 17), left brain-damaged (LBD; n = 17), and healthy control (HC; n = 34) participants completed two face perception tasks (identification and discrimination). No group differences in facial expression perception according to valence were found. Across emotions, the RBD group was less accurate than the HC group, however RBD and LBD group performance did not differ. The lack of difference between RBD and LBD groups indicates that both hemispheres are involved in positive and negative expression perception. The inclusion of older adults and the well-defined chronicity range of the brain-damaged participants may have moderated these findings. Participant sex and general face perception ability did not influence performance. Furthermore, while the RBD group was less accurate than the LBD group when the identification task tested two emotions, performance of the two groups was indistinguishable when the number of emotions increased (four or six). This suggests that task demand moderates a study’s ability to find hemispheric differences in the perception of facial emotion.     

The relation between empathy and offending: A meta-analysis

A meta-analysis of k = 38 studies (60 independent effect sizes), including 6631 participants, was conducted to investigate whether differences in cognitive and affective empathy exist between offenders and non-offenders. Cognitive empathy was more strongly associated with offending (d = .43) than affective empathy (d = .19). Moderator analyses revealed that various study and participant characteristics (i.e., year of publication, impact factor, age and sex of the participant, and assessment instrument) influenced the strength and direction of the association between cognitive empathy and offending. Type of assessment instrument, the number of variables on which the offender and comparison group were matched, age and sex of the participants influenced the strength of the association between affective empathy and offending.     

Electrocortical Evidence of Enhanced Performance Monitoring in Social Anxiety

Self-focused attention is thought to be a key feature of social anxiety disorder. Yet few studies have used event-related potentials (ERPs) to examine whether socially anxious individuals display greater monitoring of their performance and attention to their errors. Similarly, only a few studies have used ERPs to examine how social anxiety is related to processing of performance feedback. Individuals with high (n = 26) and low (n = 28) levels of social anxiety completed a trial-and-error learning task. Self-focus was manipulated using false heart-rate feedback during a random subset of trials. Performance feedback was given using emotional and neutral faces in a positive context (correct = happy face; incorrect = neutral face) and negative context (correct = neutral face; incorrect = disgust face) in order to investigate biased interpretation and attention to feedback. Socially anxious subjects displayed enhanced amplitude of the ERN and CRN, suggesting greater response monitoring, and enhanced Pe amplitude, suggesting greater processing of errors relative to the low social anxiety group. No group differences were observed with respect to feedback processing. Before learning stimulus–response mappings in the negative context, the FRN was larger for self-focus compared to standard trials and marginally larger for socially anxious subjects compared to controls. These findings support cognitive models and suggest avenues for future research.     

The relationship between visual attention and expertise in sports

ObjectivesGiven the prevalence of misperception and failed perception, particularly in attention-demanding team sports, surprisingly few studies have explored whether experts in team sports differ from other athletes and from non-athletes in their basic attention abilities.MethodIn this study, we examined group differences between experts in team handball (n = 40), athletes from non-team sports (n = 40), and novice athletes (n = 40) using a battery of three attention tasks: a functional field of view task, a multiple-object tracking task, and an inattentional blindness task.ResultsPerformance on the three attention tasks was largely independent, with no significant correlations among the tasks. Team sports experts showed no better performance on the basic attention tasks than did athletes from non-teams sports or novice athletes.ConclusionsThe finding that all basic attention tasks are largely independent provides preliminary support for the idea that attentional breadth, tracking performance, and inattentional blindness are distinct attentional processes. Our results demonstrate that sports expertise effects are unrelated to basic differences in attention—expertise does not appear to produce differences in basic attention and basic differences in attention do not appear to predict eventual expertise. Further experiments could focus on the ways in which more specific attentional strategies and processes contribute to sports performance.     

Massage therapy improves the development of HIV-exposed infants living in a low socio-economic,peri-urban community of South Africa

The aim of this study was to assess the effect of massage therapy on the growth and development of infants of HIV-infected mothers in a low socio-economic community in Cape Town. It was a prospective, randomised, controlled intervention trial that included massage therapy and control groups of HIV-infected mothers and their normal birth weight infants who were enrolled in the prevention of mother-to-child transmission (PMTCT) programme. Participants were recruited at the 6-week clinic visit and followed up every 2 weeks until their infants were 9 months of age. Mother–infant pairs in the massage therapy and control groups included 73 and 88 at 6 weeks and 55 and 58 at 9 months, respectively. Mothers in the intervention group were trained to massage their infants for 15 min daily. The socioeconomic status, immunity, relationship with the partner and mental pain of mothers; the infants’ dietary intake, anthropometry and development (Griffiths Mental Development Scales); and haematological and iron status of mothers and infants were assessed at baseline and follow-up. Nine infants (5.3%) were HIV-infected on the HIV DNA PCR test at 6 weeks. Despite significantly higher levels of maternal mental pain, infants in the massage therapy compared to control group scored higher in all five of the Griffiths Scales of Mental Development and significantly higher in the mean quotient (p = 0.002) and mean percentile (p = 0.004) for the hearing and speech scale at 9 months. Based on the mean difference in scores, the massage therapy group showed greater improvement for all five scales compared to the control group. The mean difference in scores was significantly greater for the hearing and speech quotient (21.9 vs. 11.2) (p < 0.03) and the general quotient percentile (19.3 vs. 7.7) (p = 0.03) in the massage therapy compared to the control group. These scales remained significant when adjusting for the relationship with the partner and maternal mental pain. Both groups had lower scores in the performance scale at 9 months although this was significantly worse in the control compared to the massage therapy group when adjusting for maternal CD4 count, anaemia, relationship with the partner and mental pain. There were no significant differences in the anthropometric measurements between the two groups. In conclusion, based on the Griffiths Scales, massage therapy improved the overall development and had a significant effect on the hearing and speech and general quotient of HIV-exposed infants in this study.     

The stability and change of malaise scores over 27 years: Findings from a nationally representative sample

This study investigates the stability and change of malaise scores over a period of 27 years taking account of socio-demographic variables, childhood intelligence and behavioural problems. 6822 cohort members had the complete data on Malaise measured at 23, 33, 42, and 50 years. T-tests showed that there were significant changes of malaise mean scores over the 27 years: malaise scores decreased significantly from 23 to 33 years, but increased significantly from 33 to 42 years, and there were no significant change between 42 and 50 years. The trend showed a similar pattern for men and women, though women scored significantly higher than men on the measure at every time point. Correlational analysis showed that over 27 years malaise scores ranged from r = .41 to r = .52, indicating the relative stability. Malaise was significantly and inversely associated with childhood intelligence and behavioural problems. It was also significantly associated with education in the expected direction. Regression analysis showed that previous malaise scores were significant predictors of the later ones, and the strength of the predictive power decreased over time. Limitations were considered.     

Depression mediates the relationship between social performance impairment and hostility

The goal of this study was to test depressive symptoms as a mediator between social difficulties and hostility in young adults. Hostility is often a reaction to both intrinsic and extrinsic factors; therefore a greater understanding of contributing factors is needed, especially among emerging adults. College students (n = 608; 408 females, 200 males) self-reported on social difficulties, depression, and hostility. Via exploratory factor analyses, two latent constructs related to social difficulty were identified: social performance and social motivation. Using structural equation modeling, the direct effects found that poor social performance was significantly positively associated with BPAQ Total (β = .44, p < .01). Social motivation was not associated with BPAQ Total (β = −.07, p = .21). Further, depression scores were found to partially mediate the relationship between social performance deficits (β = .34, p < .01; 95% CI = .05–.16), but not social motivation (β = −.06, p > .05; 95% CI = −.04 to .04), and overall aggression. Results are discussed in terms of the influence of negative affect and impaired emotion regulatory processes on hostility as a consequence of social performance deficits.     

Exploring possible neural mechanisms of intelligence differences using processing speed and working memory tasks: An fMRI study

To explore the possible neural foundations of individual differences in intelligence test scores, we examined the associations between Raven's Matrices scores and two tasks that were administered in a functional magnetic resonance imaging (fMRI) setting. The two tasks were an n-back working memory (N = 37) task and inspection time (N = 47). The subjects were members of the Aberdeen Birth Cohort 1936, aged in their mid–late 60s when tested for this study. Performance on both tasks was correlated significantly with scores on Raven's Matrices. In the inspection time task there were regions with significant correlations between the neural activity (BOLD response) and performance but not between BOLD response and scores on Raven's Matrices. In the working memory task there were no significant correlations between BOLD response and either performance or scores on Raven's Matrices. Moreover, there was almost no mediation of the Raven's Matrices versus n-back and inspection time scores correlations by the respective BOLD response. These findings partially replicate important aspects of a prominent report in this field [Gray, J.R., Chabris, C.F., & Braver, T.S. (2003). Neural mechanisms of general fluid intelligence. Nature Neuroscience, 6, 316–322.], but have also extended the those finding into both a unique population and a novel functional task.     

On relationships between digit ratio (2D:4D) and two fundamental cognitive drives,empathizing and systemizing,in Japanese sample

Degree of prenatal testosterone exposure in individuals is indexed by the biomarker, digit ratio, which is the length ratio between second and fourth digit fingers (2D:4D). Recent research has suggested a relationship between the digit ratio and individual differences in empathizing and systemizing, which are the two fundamental cognitive drives hypothesized by Baron-Cohen (2003). However, some studies on the relationship between digit ratio and empathy quotient (EQ) and systemizing quotient (SQ) have reported inconsistent results (Manning et al., 2010, von Horn et al., 2010, Voracek and Dressler, 2006). This study examined the relationship between digit ratio and EQ and SQ in a sample of Japanese university students (174 males and 174 females, mean age = 19.6). Results showed that, on average, male digit ratio was lower than female digit ratio, and digit ratio correlated positively with scores on EQ and negatively with scores on SQ, although correlation coefficients were very low. These results suggest that the fetal testosterone level as estimated by the digit ratio is related to individual differences in adult cognitive and behavioral patterns.     

When are grandiose and vulnerable narcissists least helpful?

Grandiosity and vulnerability are distinct dimensions of narcissism, but little research has examined their differences regarding prosocial behavior. This investigation is the first to test the hypotheses that grandiose narcissism predicts withholding help under high social pressure, whereas vulnerable narcissism predicts withholding help under low social pressure. Undergraduate participants (N = 220, M_age = 19.5, 142 women) were partnered with a confederate for the supposed purpose of a mock counseling session. The confederate ruined the session by demonstrating inconsiderate behavior, after which the participant encountered two opportunities to help the confederate: one presented under high social pressure to help, the other presented under low social pressure to help. Measures also assessed participants’ prosocial emotions, including empathy for and forgiveness of the confederate. Consistent with hypotheses, grandiose narcissism predicted less helping under high social pressure, whereas vulnerable narcissism predicted less helping under low social pressure, the latter relationship being mediated by reduced forgiveness. Vulnerable narcissism was also associated with less empathy and forgiveness. Grandiose and vulnerable narcissism differentially predicted helping behavior depending on the amount of social pressure to help. These results conform to theoretical distinctions between grandiosity and vulnerability regarding social dominance and internalization.     

A threatening exchange: Gender and life history strategy predict perceptions and reasoning about sexual harassment

Sexual harassment is a serious societal issue, with extensive economic and psychological consequences, yet it is also an ill-defined construct fundamentally defined in terms of subjective perception. The current work was designed to examine the ways in which individual differences between people are systematically related to different perceptions of sexual harassment scenarios, as well as reasoning about those harassment situations. Participants (N = 460) read several possible harassment scenarios and rated how uncomfortable they would find them. They then also evaluated a quid pro quo sexual harassment situation in terms of their interpretation of it as a threat or a social exchange and completed a deductive reasoning task about the same situation. Females and individuals with slow life history strategies were more uncomfortable with potential harassment situations and were more likely to interpret the quid pro quo scenario as a threat. Further, interpreting the scenario as a threat was associated with poorer performance on the deductive logic task, compared to those who interpreted the scenario as a social exchange.     

Do sex differences in a faceted model of fluid and crystallized intelligence depend on the method applied?

Recently, different methodological approaches have been discussed as an explanation for inconsistencies in studies investigating sex differences in different intelligences. The present study investigates sex differences in manifest sum scores, factor score estimates, and latent verbal, numerical, figural intelligence, as well as fluid and crystallized intelligence as measured by the German Intelligence-Structure-Test 2000-R (IST 2000-R; Liepmann, Beauducel, Brocke, & Amthauer, 2007). The not population-representative sample consisted of 977 German 11th and 12th graders enrolled in a “Gymnasium” (551 female; mean age: M = 16.70; SD = 0.65) who completed the IST 2000-R. Sex differences in fluid and crystallized intelligence were not influenced by the method applied with men performing better than women. However, extent and direction of sex differences in verbal, numerical, and figural intelligence differed by the method applied. Whereas there was a male advantage in all three factors measured as manifest sum scores, women performed better in verbal intelligence as measured by factor scores or as latent variables. Effect sizes of sex differences in numerical and figural intelligence were also greatly reduced when applying the latter two methods. Results are discussed with regard to their theoretical and practical implications.     

Acute effect of stretching modalities on global coordination and kicking accuracy in 12–13 year-old soccer players

The aim of the study was to compare the effect of stretching procedures on global coordination and accuracy in instep soccer kicks achieved in different stress conditions. Twenty male young soccer players completed the global coordination test (GC), the instep kicking accuracy test in free (FKA) and in time-pressure (TPKA) conditions, either after static (SS), dynamic (DS), ballistic (BS) or no-stretching (CTR) protocols, on nonconsecutive days and in a randomized order. After performing a 5 min standardized intensity jogging (70% of MAV), followed by stretching exercises for 10 min, each participant completed, successively, the GC, FKA and TPKA tests. Accuracy data, heart-rate, rating of perceived exertion and task difficulty perception were recorded and analyzed using a two-way ANOVA. GC scores were analyzed using one way ANOVA with repeated measures. The results showed higher GC and TPKA performances after DS and BS procedures. However, there was no effect of the stretching procedures on FKA. The GC scores increased by 10.8% and 7.2% after DS and BS, respectively, but were not affected by SS. Compared to FKA, the TPKA accuracy significantly decreased by 20.2% after CTR (p < 0.01) and 30.7% SS (p < 0.001) with no significant difference after DS (10.1%; p > 0.05) and BS (11.0%; p > 0.05). The use of dynamic and ballistic stretching yielded to better GC scores and helped reducing the adverse effect of time-pressure on instep kicking accuracy. Consequently, dynamic and ballistic exercises can be recommended before practicing activities requiring coordination and lower limbs speed and accuracy.     

Adaptation of lower limb movement patterns when maintaining performance in the presence of muscle fatigue

Adaptations in lower limb movement patterns were examined when performance was maintained during a fatiguing repetitive loading task. Forty recreationally active male and female participants performed single-leg hopping to volitional exhaustion at 2.2 Hz to a submaximal height. Spatio-temporal characteristics, mechanical characteristics and variability of the knee-ankle and hip-knee joint couplings were determined at 20% increments during the duration of the hopping task. Variability of the knee-ankle and hip-knee couplings in the flexion/extension axis significantly increased during the loading and propulsion phases during the hopping task (p < 0.05). Performance (vertical stiffness, hopping frequency and height) did not change significantly during the task (p > 0.05), however foot contact time increased progressively during this task (p < 0.05) and maximum hop height significantly decreased after the task (p < 0.05). The observed increase in variability between adjoining lower limb segments demonstrated the ability of the neuromotor system to adapt and maintain performance even with the onset of fatigue. This finding highlights that during the performance of a rapid and repetitive loading activity, performance can be preserved when there is variability in the neuromotor system.     

Meta-analytic evidence for higher implicit affiliation and intimacy motivation scores in women,compared to men

We used meta-analysis to test for gender differences in implicit needs for affiliation/intimacy, assessed via story-coding methods. We included thirty-three effect sizes from 26 publications and 2 unpublished studies, covering a total of 5962 research participants (58% female). Across studies, women scored higher than men in measures of implicit affiliation motivation (d¹ = 0.45, 95%CI = [0.37; 0.53]). This finding was not moderated by the coding system used, gender congruence of the picture cues presented, or correction for protocol length. Men and women did not differ in their implicit needs for power (N = 2493, k = 15, d¹ = −0.19, 95%CI = [−0.44; 0.05]) or achievement (N = 2235, k = 13, d¹ = 0.14, 95%CI = [−0.03; 0.30]).     

Variability of kinematic graphomotor fluency in adults with ADHD

Although graphomotor differences and variability of performance have been observed in children with attention deficit hyperactivity disorder (ADHD), no study has investigated whether this variability manifests in the kinematic graphomotor domain in adults with ADHD. Fourteen ADHD and 20 control participants wrote a novel grapheme and common word on a digitizing tablet 30 times each, with ADHD participants counterbalanced on and off stimulant medication. Variability of graphomotor fluency was significantly greater in ADHD versus control participants only in the novel writing task, both on, F(1, 31) = 5.988, p = .020, and off stimulant medication, F(1, 32) = 8.789, p = .006. Results suggest that motor control differences in ADHD are not limited to childhood and extend into adulthood. Given sufficient additional research, variability of kinematic graphomotor fluency may increase the sensitivity/specificity of differential diagnoses and/or represent a biomarker for ADHD.     

Valence specific laterality effects in free viewing conditions: The role of expectancy and gender of image

Recent research has looked at whether the expectancy of an emotion can account for subsequent valence specific laterality effects of prosodic emotion, though no research has examined this effect for facial emotion. In the study here (n = 58), we investigated this issue using two tasks; an emotional face perception task and a novel word task that involved categorising positive and negative words. In the face perception task a valence specific laterality effect was found for surprise (positive) and anger (negative) faces in the control but not expectancy condition. Interestingly, lateralisation differed for face gender, revealing a left hemisphere advantage for male faces and a right hemisphere advantage for female faces. In the word task, an affective priming effect was found, with higher accuracy when valence of picture prime and word target were congruent. Target words were also responded to faster when presented to the LVF versus RVF in the expectancy but not control condition.These findings suggest that expecting an emotion influences laterality processing but that this differs in terms of the perceptual/experience dimension of the task. Further, that hemispheric processing of emotional expressions appear to differ in the gender of the image.     

The relationship between computer-game preference,gender, and mental-rotation ability

This study examined how computer-game preference relates to mental-rotation test (MRT) performance and to gender differences. Subjects were 861 German secondary-school children (mean age = 14.67; range 10–20 years). Latent class analysis with the data of a computer-game preference scale revealed three types of players: “non-players”, “action-and-simulation game players” and “logic-and-skill-training game players”. Large gender differences were found with respect to class assignment. More females than males were found in the “logic-and-skill-training game player” class (82.9%) and in the class of “non-players” (81.9%). Males in contrast were overrepresented (81.7%) in the class of “action-and-simulation game players”. As expected, males on average outperformed females in mental-rotation test performance (d = 0.63). Furthermore, ANOVA results indicated mean differences in mental-rotation ability between action-and-simulation players and non-players (partial η² = .01) as well as age differences (partial η² = .04). With boys, non-players on average had lower MRT scores than action-and-simulation game players. For females, computer-game preference was unrelated to MRT performance. Results are discussed within a nature–nurture-interactionist framework of gender differences in spatial abilities.