Upstream neutral modes, counter propagating to charge modes and carrying energy without net charge, had been predicted to exist in some of the fractional quantum Hall states and were recently observed via noise measurements. Understanding such modes will assist in identifying the wavefunction of these states, as well as shedding light on the role of Coulomb interactions within edge modes. Here,...

Self-organization can be approached in terms of developmental processes occurring within and between component systems of temperament. Within-system organization involves progressive shaping of cortical representations by subcortical motivational systems. As cortical representations develop, they feed back to provide motivational systems with enhanced detection and guidance capabilities. These ...

Motivational interviewing is an approach based upon principles of experimental social psychology, applying processes such as attribution, cognitive dissonance, and self-efficacy. Motivation is conceptualized not as a personality trait but as an interpersonal process. The model deemphasizes labeling and places heavy emphasis on individual responsibility and internal attribution of change. Cognit...

Integrin signaling regulates cell migration and plays a pivotal role in developmental processes and cancer metastasis. Integrin signaling has been studied extensively and much data is available on pathway components and interactions. Yet the data is fragmented and an integrated model is missing. We use a rule-based modeling approach to integrate available data and test biological hypotheses reg...

Anseriform birds (ducks and geese) as well as parrots and songbirds have evolved a disproportionately enlarged telencephalon compared with many other birds. However, parrots and songbirds differ from anseriform birds in their mode of development. Whereas ducks and geese are precocial (e.g., hatchlings feed on their own), parrots and songbirds are altricial (e.g., hatchlings are fed by their par...

Growing number of evidence indicates that individuals' motivational structure - the patterning of an individual's way of relating to goals - plays an important role in increasing the risk of alcohol use. Adaptive motivational structure which includes pursuit of important, subjectively attainable, alcohol-unrelated goals is inversely related to substance use. The strength of this relationship in...

AIMS To present a comprehensive review of the use of motivational enhancement and other brief interventions for substance use in adolescents. METHODS In this paper, we review the major theoretical foundations and influences of brief interventions (including motivational interviewing), consider developmental issues in its application for adolescents, discuss methodological issues in the design...

The concept of motivational operations exerts an increasing influence on the understanding and assessment of problem behavior in people with intellectual and developmental disability. In this systematic review of 59 methodologically robust studies of the influence of motivational operations in negative reinforcement paradigms in this population, we identify themes related to situational and bio...