Between east and west: Russian renewal and the future

Two philosophers and prominent public figures explore the spiritual and cultural framework within which Russia's crisis and prospects for social renewal must be understood. Their discussion ranges over several main areas of concern in Russia today: the nature of the person and her capacities as social actor, the forms of sociality Russia has known as seen against the background of Orthodoxy and Communism, and Russia's tragedy during the seventy-five years of Communism. A ‘third path’ is envisaged for Russian renewal based on geopolitical, cultural, and spiritual constants in the history of the nation.     

Temporal dynamics of Arc gene induction in hippocampus: relationship to context memory formation

Past studies have proposed a role for the hippocampus in the rapid encoding of context memories. Despite this, there is little data regarding the molecular processes underlying the stable formation of a context representation that occurs in the time window established through such behavioral studies. One task that is useful for investigating the rapid encoding of context is contextual fear conditioning (CFC). Behavioral studies demonstrate that animals require approximately 30 s of exploration prior to a footshock to form a contextual representation supporting CFC. Thus, any potential molecular process required for the stabilization of the cellular representation for context must be activated within this narrow and behaviorally defined time window. Detection of the immediate-early gene Arc presents an ideal method to assess the activation of specific neuronal ensembles, given past studies showing the context specific expression of Arc in CA3 and CA1 subfields and the role of Arc in hippocampal long-term synaptic plasticity. Therefore, we examined the temporal dynamics of Arc induction within the hippocampus after brief context exposure to determine whether experience-dependent Arc expression could be involved in the rapid encoding of incidental context memories. We found that the duration of context exposure differentially activated Arc expression in hippocampal subfields, with CA3 showing rapid engagement within as little as 3 s of exposure. By contrast, Arc induction in CA1 required 30 s of context exposure to reach maximal levels. A parallel behavioral experiment revealed that 30 s, but not 3 s, exposure to a context resulted in strong conditioned freezing 24 h later, consistent with past studies from other laboratories. The current study is the first to examine the rapid temporal dynamics of Arc induction in hippocampus in a well-defined context memory paradigm. These studies demonstrate within 30 s of context exposure Arc is fully activated in CA3 and CA1, suggesting that the engagement of plastic processes requiring Arc function (such as long-term potentiation) occurs within the same temporal domain as that required for behavioral conditioning.     

Distinct Pathways From Parental Beliefs and Practices to Children’s Numeric Skills

It is imperative to identify contextual factors contributing to the development of early math skills, considering their role in later academic achievement. To pursue this goal, the present study investigated the paths connecting parental beliefs and practices during the preschool years to children’s numeric skills at the end of kindergarten (N = 98). Results were consistent with theoretical predictions of specific relations between particular types of parental input and different aspects of number knowledge. Direct math learning activities mediated the relation between parental beliefs and children’s number identification skills. Daily activities involving quantitative components mediated the relation between parental beliefs and children’s numerical magnitude understanding. Both types of activities predicted arithmetic skills that integrate the basic aspects of symbolic number knowledge. These findings contribute to developmental theory by specifying how characteristics of children’s environments are related to particular aspects of their development, which is critical for informing intervention work to improve early math skills.     

Rose-colored glasses gone too far? Mania symptoms predict biased emotion experience and perception in couples

The present study investigated how symptoms of mania—associated with heightened and persistent positive emotion—influence emotion experience and perception during distressing social interactions, whereby the experience of heightened positive emotion may not be socially adaptive. Specifically, mania symptoms were assessed via a validated self-report measure, and used to predict emotion experience and perception during a naturalistic conversation between romantic couples about a time of distress and suffering (N = 68 dyads). Results indicated that mania symptoms were associated with increased positive and decreased negative emotion experience and perception between couples, as well as decreased empathic accuracy for partners’ negative but not positive emotions. These findings suggest that mania symptoms may be associated with “rose-colored” glasses characterized by a positively biased emotional experience and outward perception even during perhaps the most intimate and distressing social situations.