Endocrinology of menopausal transition and its brain implications

The central nervous system is one of the main target tissues for sex steroid hormones, which act on both through genomic mechanisms, modulating synthesis, release, and metabolism of many neuropeptides and neurotransmitters, and through non-genomic mechanisms, influencing electrical excitability, synaptic function, morphological features, and neuron-glia interactions. During the climacteric period, sex steroid deficiency causes many neuroendocrine changes. At the hypothalamic level, estrogen withdrawal gives rise to vasomotor symptoms, to eating behavior disorders, and altered blood pressure control. On the other hand, at the limbic level, the changes in serotoninergic, noradrenergic, and opioidergic tones contribute to the modifications in mood, behavior, and nociception. Hormone replacement therapy (HRT) positively affects climateric depression throughout a direct effect on neural activity and on the modulation of adrenergic and serotoninergic tones and may modulate the decrease in cognitive efficiency observed in climaterium. The identification of the brain as a de novo source of neurosteroids, suggests that the modifications in mood and cognitive performances occurring in postmenopausal women may also be related to a change in the levels of neurosteroids. These findings open new perspectives in the study of the effects of sex steroids on the central nervous system and on the possible use of alternative and/or auxiliary HRT.     

Relative deprivation,national GDP and right-wing populism: A multilevel,multinational study

We conducted a secondary analysis of the 2018 (ninth round) European Social Survey dataset (N = 19,512, nested in 24 countries) to analyse the association between relative deprivation and right-wing populist voting, moderated by participants' income and their country's GDP. A multilevel moderated model showed that relative deprivation, income and GDP had no association with right-wing populist votes by themselves. However, income and GDP moderated the relation between relative deprivation and right-wing populist votes, that was significant for participants with high incomes and for those living in wealthy countries. The strengths, limitations and future developments of the study are discussed.     

Teaching relationship science: Continuity and change in the craft

Relationship science is a dynamic, flourishing enterprise, with numerous discoveries and new lines of inquiry evident in recent changes in its textbooks and the teaching activities invented by its instructors. To survey changes and challenges in the teaching of courses that introduce students to relationship science—and to pursue “news instructors can use”—we surveyed 135 instructors of relationships courses regarding their teaching tactics and experiences. Guided by their responses and suggestions for further inquiry, we also examined the changes in textbooks on which they rely and reviewed teaching activities created to assist them with their teaching over the last 20 years. At present, some topics are nearly universal components of relationships courses but idiosyncrasy exists, particularly with regard to new topics—such as coverage of technology, intersectionality, or consensual nonmonogamy—that instructors plan to include in revisions of their courses. Suggestions for both new and experienced instructors are provided.     

How exposure to real conspiracy theories motivates collective action and political engagement? Τhe moderating role of primed victimhood and underlying emotional mechanisms in the case of 2018 bushfire in Attica

Conspiracy theories concern milestone events, mobilizing various explanations. However, there is still emerging research on how conspiracy beliefs mobilize normative and nonnormative collective action, as well as political engagement and what the emotional underpinnings of such effects are. We conducted two experimental studies (Study 1, N = 301 and Study 2, N = 328) on exploring the relationship between exposure to conspiracy theories and normative, nonnormative collective action and political engagement, moderated by primed victimhood and mediated by fear/anxiety and anger emotional indices. Results in Study 1 showed that exposure to conspiracy theories decreases normative collective action, but increases nonnormative collective action, negative emotions of anger and fear/anxiety and political engagement. In Study 2 we confirmed findings of Study 1, but these effects were moderated by primed victimhood. Study 2 also showed that anger index, but not fear/anxiety index, significantly mediated the moderating interaction effect between exposure to conspiracy theories and primed victimhood on the (non)normative collective action and political engagement. Results are discussed in light of the broader impact of circulation of conspiracy theories and their effective tackle amidst societal traumas.     

Effects of color on perceptual and conceptual tests of implicit memory

Two experiments are reported that explore why recent investigations of implicit memory failed to find any effects of color information on test performance. In the first experiment, participants studied colored pictures as well as words printed in colored ink without any memory instructions. During the test phase, a verbal and a pictorial version of a color-choice task (a conceptual priming test) were compared to two perceptual tests (word-stem completion and picture-fragment identification). Similar and significant amounts of priming to color occurred in both color-choice tasks. The perceptual tests were found to be sensitive to changes in the stimulus-presentation mode from study to test, but stimuli remaining the same color and those changed to black-and-white did not differ in the priming scores. In the second experiment, a mild division of attention was introduced in the study phase. Once again, priming to color was observed only in the verbal version of a color-choice test and not in the word-stem completion test. Dividing attention did not decrease performance on both implicit tests, whereas an explicit test of color recall for studied pictures suffered from dividing attention at encoding. It is concluded that a perceptual attribute such as color may be represented and coded by conceptual processing. Furthermore, automatic (or not attention-demanding) encoding processes may suffice for later conceptual tests of implicit memory. Previous failures to find any effects of color information on implicit performance are attributed to the use of perceptual priming tests. Received: 30 June 1997 / Accepted: 20 April 1998     

Multiple Memory Processes Following Training That a Food Is Inedible in Aplysia

In many organisms, memory after training can be separated into a number of processes. We now report that separable memory processes are also initiated by a training procedure affecting Aplysia feeding behavior, a model system for examining the neural mechanisms underlying the regulation of a complex behavior. Four distinct memory process were identified: (1) a very short-term memory that declines within 15 min, (2) a short-term memory that persists for 0.5–1.0 hr, (3) an intermediate-term memory, observed 4 hr after training, and (4) a long-term memory that is seen only after a 12- to 24-hr delay. The four memory processes can be distinguished by the different training procedures that are required to elicit them. A single 5-min training session is sufficient to elicit the very short-term memory. However, a longer training session that continues until the animal stops responding to food is needed to elicit short-term memory. Intermediate-term memory is observed only after a spaced training procedure (three 5-min training sessions separated by 30-min intervals). A single 5-min training session that does not cause either short-term or intermediate-term memory is sufficient to induce long-term memory, indicating that short- and long-term memory are independent, parallel processes. Short- and long-term memory can also be separated by the effects of a post-training experience. Long-term, but not short-term, memory can be attenuated by cooling animals immediately after training. Cooling before the training does not affect either the training or the subsequent short- or long-term memory.     

Animacy and competition in relative clause production: a cross-linguistic investigation

This work investigates production preferences in different languages. Specifically, it examines how animacy, competition processes, and language-specific constraints shape speakers' choices of structure. English, Spanish and Serbian speakers were presented with depicted events in which either an animate or inanimate entity was acted upon by an agent. Questions about the affected participant in these events prompted the production of relative clauses identifying these entities (e.g., the bag the woman is punching). Results indicated that in English, animacy plays a strong role in determining the choice of passive structures. In contrast, it plays a less prominent role in Spanish and Serbian structure choices, where more active structures were produced to varying degrees. Critically, the semantic similarity between the agent and the patient of the event correlated with the omission of the agent in all languages, indicating that competition resulted in the agent's inhibition. Similarity also correlated with different functional choices in Spanish. The results suggest that similarity-based competition may influence various stages of production planning but its manifestations are constrained by language-specific grammatical options. Implications for models of sentence production and the relationship between production and comprehension are discussed.     

Some Notes on the Census of Religious Bodies, 1926

In line with previous results that challenge the traditional primacy of warmth over competence in outgroup perception, we propose to bridge elements from stereotype content model and social identity theory: Perceivers will use the competence and warmth dimensions differentially when interpreting higher or lower status outgroup members' behavior. We test the hypothesis that the dimension that is less favorable for the outgroup and more favorable for the ingroup will be used. In particular, we investigate whether the warmth dimension would better predict the interpretation of higher status outgroup members' behavior than the competence dimension, whereas the competence dimension would better predict the interpretation of lower status outgroup members' behavior than the warmth dimension. Two studies separately test these effects. Results suggest the existence of a motivated bias in interpreting outgroup members' behavior, especially when there is ingroup identification.