Processing valence and intensity of infant expressions: the roles of expertise and gender

Several studies have provided evidence of a women's better accuracy in interpreting emotional states. Despite this difference is generally ascribed to the primary role of female gender in the affective relation with the offspring, to date, little information is available regarding gender differences in the ability to interpret infant facial expressions. In the present study, we examined the roles of gender and expertise in interpreting infant expression in 34 men and women who differed in their experience with infants. Women showed a significantly higher level of decoding accuracy compared to men. Expertise positively affected facial expressions decoding among women only. Our results suggest that in judging emotional facial expressions of infants, there is an interaction of biological (i.e., gender) and cultural factors that is independent of a woman's socioeconomic status.     

The Role of Stimulus Specificity on Infidelity Reactions: Seeing is Disturbing

Past research has found that males are more distressed by imagined scenarios of sexual infidelity compared with females, while females are more distressed by imagined scenarios of emotional infidelity. Expanding on the methodology originally employed by Buss et al. (Psychological Science, 3, 251–255, 1992), we examined sex differences in reactions to imagined infidelity by addressing the effects of visual images of potential interlopers. Additionally, this research measured affective responses in a continuous format by examining psychological discomfort. Participants in high-visual imagery and control conditions imagined infidelity (both emotional and sexual) and then reported levels of discomfort. Further, two indices of autonomic nervous system responding were assessed (skin conductance and pulse rate). Ninety-three (53 females, 40 males) college students participated. Visual stimuli produced greater psychological distress than thought-produced stimuli for all participants, especially males. Sex differences in reactions to infidelity consistent with past research were obtained for the categorical and continuous psychological indices. Implications for research in this area are discussed.

Neuroticism, extraversion, goals, and subjective well-being: Exploring the relations in young, middle-aged, and older adults

The positive association between intrinsic, as opposed to extrinsic, goal importance and Subjective Well-Being (SWB) is well-documented. However, less is known whether these associations are consistent across age groups and when simultaneously considering personality traits. Structural equation models conducted with young, middle-aged, and older adults indicated that neuroticism was negatively related to SWB across age groups, while extraversion and intrinsic goal importance held age-differential associations: Extraversion was related to SWB in the two younger age groups, whereas in older adults only an indirect effect emerged via intrinsic goal importance. Intrinsic goal importance was related to SWB among young and older adults but not among middle-aged adults. These results underscore the importance of age-differential associations in determinants of SWB.     

Another Look at Sex Differences in Preferred Mate Characteristics: The Effects of Endorsing the Traditional Female Gender Role

This research used an individual differences approach to test Eagly and Wood's (1999) claim that sex differences in the characteristics that people prefer in mates reflect the tendency for men and women to occupy different social roles in a society. The study related the extent to which participants endorsed the traditional female gender role to their preferences for their future mate's traits and age relative to their own age. In general, the sex–differentiated preferences that are consistent with the traditional division of labor were more pronounced, especially in male participants, to the extent that they endorsed the traditional female role.     

Clinical features of tic-related obsessive-compulsive disorder: results from a large multicenter study

OBJECTIVE: To evaluate the clinical features of obsessive-compulsive disorder (OCD) patients with comorbid tic disorders (TD) in a large, multicenter, clinical sample.MethodA cross-sectional study was conducted that included 813 consecutive OCD outpatients from the Brazilian OCD Research Consortium and used several instruments of assessment, including the Yale-Brown Obsessive-Compulsive Scale, the Dimensional Yale-Brown Obsessive-Compulsive Scale, the Yale Global Tic Severity Scale (YGTSS), the USP Sensory Phenomena Scale, and the Structured Clinical Interview for DSM-IV Axis I Disorders. RESULTS: The sample mean current age was 34.9 years old (SE 0.54), and the mean age at obsessive-compulsive symptoms (OCS) onset was 12.8 years old (SE 0.27). Sensory phenomena were reported by 585 individuals (72% of the sample). The general lifetime prevalence of TD was 29.0% (n = 236), with 8.9% (n = 72) presenting Tourette syndrome, 17.3% (n = 141) chronic motor tic disorder, and 2.8% (n = 23) chronic vocal tic disorder. The mean tic severity score, according to the YGTSS, was 27.2 (SE 1.4) in the OCD + TD group. Compared to OCD patients without comorbid TD, those with TD (OCD + TD group, n = 236) were more likely to be males (49.2% vs. 38.5%, p < .005) and to present sensory phenomena and comorbidity with anxiety disorders in general: separation anxiety disorder, social phobia, specific phobia, generalized anxiety disorder, post-traumatic stress disorder, attention-deficit hyperactivity disorder, impulse control disorders in general, and skin picking. Also, the "aggressive," "sexual/religious," and "hoarding" symptom dimensions were more severe in the OCD + TD group.ConclusionTic-related OCD may constitute a particular subgroup of the disorder with specific phenotypical characteristics, but its neurobiological underpinnings remain to be fully disentangled.     

Apes are intuitive statisticians

Inductive learning and reasoning, as we use it both in everyday life and in science, is characterized by flexible inferences based on statistical information: inferences from populations to samples and vice versa. Many forms of such statistical reasoning have been found to develop late in human ontogeny, depending on formal education and language, and to be fragile even in adults. New revolutionary research, however, suggests that even preverbal human infants make use of intuitive statistics. Here, we conducted the first investigation of such intuitive statistical reasoning with non-human primates. In a series of 7 experiments, Bonobos, Chimpanzees, Gorillas and Orangutans drew flexible statistical inferences from populations to samples. These inferences, furthermore, were truly based on statistical information regarding the relative frequency distributions in a population, and not on absolute frequencies. Intuitive statistics in its most basic form is thus an evolutionarily more ancient rather than a uniquely human capacity.     

ARE WOMEN EVALUATED MORE FAVORABLY THAN MEN?

In an experiment in which male and female respondents evaluated the social category of women or men on several types of measures, analysis of respondents' attitudes toward the sexes and of the evaluative content of their beliefs established that they evaluated women more favorably than men. In addition, analysis of respondents' emotional reactions toward women and men did not yield evidence of negativity toward women at the emotional level. Nor did it appear that respondents' very positive evaluations of women masked ambivalence toward them. This research, therefore, provides strong evidence that women are evaluated quite favorably—in fact, more favorably than men.     

Orientation priming of grasping decision for drawings of objects and blocks,and words

This study tested the influence of orientation priming on grasping decisions. Two groups of 20 healthy participants had to select a preferred grasping orientation (horizontal, vertical) based on drawings of everyday objects, geometric blocks or object names. Three priming conditions were used: congruent, incongruent and neutral. The facilitating effects of priming were observed in the grasping decision task for drawings of objects and blocks but not object names. The visual information about congruent orientation in the prime quickened participants’ responses but had no effect on response accuracy. The results are discussed in the context of the hypothesis that an object automatically potentiates grasping associated with it, and that the on-line visual information is necessary for grasping potentiation to occur. The possibility that the most frequent orientation of familiar objects might be included in object-action representation is also discussed.