Functional (f)MRI has revolutionized the field of human brain research. fMRI can noninvasively map the spatial architecture of brain function via localized increases in blood flow after sensory or cognitive stimulation. Recent advances in fMRI have led to enhanced sensitivity and spatial accuracy of the measured signals, indicating the possibility of detecting small neuronal ensembles that cons...

Easily perceived identities (e.g., race) may interact with perceptually ambiguous identities (e.g., sexual orientation) in meaningful but elusive ways. Here, we investigated how intersecting identities impact impressions of leadership. People perceived gay Black men as better leaders than members of either single-minority group (i.e., gay or Black). Yet, different traits supported judgments of ...

There are profound sex differences in the incidence of many psychiatric disorders. While these disorders are frequently linked to social stress, little is known about sex differences in the underlying neural mechanisms. Individuals characterized by aggression and dominance are more resistant to social stress, whereas individuals characterized by docility and subordinace are more susceptible to ...

Damage to the human ventromedial prefrontal cortex (VM) can result in dramatic and maladaptive changes in social behavior despite preservation of most other cognitive abilities. One important aspect of social cognition is the ability to detect social dominance, a process of attributing from particular social signals another person's relative standing in the social world. To test the role of the...

One the most fundamental aspects of the human motor system is the hemispheric asymmetry seen in behavioral specialization. Hemispheric dominance can be inferred by a contralateral hand preference in grasping. Few studies have considered grasp orientation in the context of manual lateralization and none has looked at grasp orientation with natural prehension. Thirty right-handed adults performed...

Using an experiment with material incentives, this paper investigates the violation of composite dominance relationships, viz. absolute Pareto dominance, Pareto rank dominance, transfer dominance, Lorenz dominance, and generalized Lorenz dominance. Moreover, we test tail independence. The experiment consists of two treatments, a self–concern mode (in which each subject expects payoffs according...

One of the emerging research areas in the strategic orientation is how to transfer different orientations from the commercial sector to the non-profit sector. Therefore, the objective of this study is to determine the mediating effect of Learning Orientation on the Market Orientation, Social Entrepreneurial Orientation, and Organizational Performance in the non-profit sector. The data from more...

What are the origins of humans' capacity to represent social relations? We approached this question by studying human infants' understanding of social dominance as a stable relation. We presented infants with interactions between animated agents in conflict situations. Studies 1 and 2 targeted expectations of stability of social dominance. They revealed that 15-mo-olds (and, to a lesser extent,...

A t w o-eye visual environment is used in training a network of BCM neurons. We study the eeect of misalignment b e t w een the synaptic density functions from the two e y es, on the formation of orientation selectivity and ocular dominance in a lateral inhibition network. The visual environment w e use is composed of natural images. We show that for the BCM rule a natural image environment wit...