Learning-dependent potentiation in the vibrissal motor cortex is closely related to the acquisition of conditioned whisker responses in behaving mice

The role of the primary motor cortex in the acquisition of new motor skills was evaluated during classical conditioning of vibrissal protraction responses in behaving mice, using a trace paradigm. Conditioned stimulus (CS) presentation elicited a characteristic field potential in the vibrissal motor cortex, which was dependent on the synchronized firing of layer V pyramidal cells. CS-evoked and other event-related potentials were particular cases of a motor cortex oscillatory state related to the increased firing of pyramidal neurons and to vibrissal activities. Along conditioning sessions, but not during pseudoconditioning, CS-evoked field potentials and unitary pyramidal cell responses grew with a time-course similar to the percentage of vibrissal conditioned responses (CRs), and correlated significantly with CR parameters. High-frequency stimulation of barrel cortex afferents to the vibrissal motor cortex mimicked CS-related potentials growth, suggesting that the latter process was due to a learning-dependent potentiation of cortico-cortical synaptic inputs. This potentiation seemed to enhance the efficiency of cortical commands to whisker-pad intrinsic muscles, enabling the generation of acquired motor responses.     

Cognition-Oriented Treatments for Older Adults: a Systematic Overview of Systematic Reviews

Neuropsychology Review - Cognition-oriented treatments – commonly categorized as cognitive training, cognitive rehabilitation and cognitive stimulation – are promising approaches for...     

Women’s Ideals for Masculinity Across Social Contexts: Patriarchal Agentic Masculinity is Valued in Work,Family, and Romance but Communal Masculinity in Friendship

The present study explores women’s ideals for masculinity in different social contexts (work, family/romance, and friendship) and compares how traditional (agentic) and non-patriarchal (communal) masculinity are valued in each context. Survey data were collected from one international (N = 159) and three South African samples (Ns = 86, 100, 161) of women. Results show that although women value patriarchal ideals for masculinity, agentic and communal versions of masculinity are valued differently across contexts. Specifically, traditional agentic versions of masculinity were most valued in the contexts most important to the long-term production of viable identity (family/romance and work). It was only in friendship that non-patriarchal communal masculinity was consistently idealized over traditional agentic masculinity. The results are discussed in relation to hegemonic masculinity (HM) and system justification theory (SJT). Congruent with SJT, women idealized versions of masculinity that may not be in their own or their group’s best interests, but in line with HM, the results emphasized the fluidity of masculinity and that the same individual can simultaneously idealize different versions of masculinity depending on the context. Because stereotypes are both explanations for the status quo and warrants for behaving in one way or another, these collective ideals for masculinity and contextual boundaries may be important obstacles to achieving gender equity.     

Unplanned pregnancy and risk of maternal depression: secondary data analysis from a prospective pregnancy cohort

Purpose: to evaluate the relationship between unplanned pregnancy (UP), a common problem in high and low income countries and maternal depression (MD). Methods: Secondary analysis of data from a prospective cohort study with pregnant women recruited from 10 primary care clinics of the public sector in São Paulo, Brazil. Participants were questioned about pregnancy intention at 20–30 weeks of gestation. The Self Report Questionnaire score >7 was used to evaluated the presence of depression during pregnancy and 11 months after childbirth. Four groups of MD were defined: never; antenatal only; postnatal only; persistent (both antenatal/postnatal). Multinomial logistic regression was used to assess the relationship between UP and MD, controlling for confounding. Results: Data were analysed for 701 at the postpartum period. Five hundred and sixty-two (67.8%) women did not plan the pregnancy. Women with UP had 2.5 more risk of being depressed during both assessments (during pregnancy and postpartum) when compared to women with a planned pregnancy (RR: 2.5; 95% CI: 1.47:4.30). In the adjusted models, women with UP were significantly more likely to have persistent depression (RR: 2.3; 95% CI: 1.2:4.3). Conclusion: UP is an independent risk factor for persistent depression, but not for postpartum depression     

Picturing the Wheatbelt: Exploring and Expressing Place Identity Through Photography

Community arts and cultural development is a process that builds on and responds to the aspirations and needs of communities through creative means. It is participatory and inclusive, and uses multiple modes of representation to produce local knowledge. ‘Voices’ used photography and photo elicitation as the medium for exploring and expressing sense of place among Aboriginal and non‐Indigenous children, young people and adults in four rural towns. An analysis of data generated by the project shows the diverse images that people chose to capture and the different meanings they afforded to their pictures. These meanings reflected individual and collective constructions of place, based on positive experiences and emotions tied to the natural environment and features of the built environment. We discuss community arts and cultural development practice with reference to creative visual methodologies and suggest that it is an approach that can contribute to community psychology’s empowerment agenda.     

A Coauthorship Analysis of Internationalization in Political Psychology Through the Lens of ISPP Dissemination Activities

Internationalization is a key aim of the International Society of Political Psychology (ISPP). This article uses bibliometric techniques to explore international collaborations in the Society's core activities, namely the journal Political Psychology and annual meetings. We explore how authors from different regions of the world are interconnected through coauthorship, using country information extracted from authors' affiliation and coded as Western, Educated, Industrialized, Rich, and Democratic (WEIRD) or non-WEIRD. Study 1 analyzes coauthorship in the Society's journal Political Psychology from 1985–2014 (30 years), with 1151 authors from 42 countries and 1337 coauthorship ties between them. Study 2 mapped the coauthorship relationships for annual meetings for which documentation was available, eventually collecting data from 2006 to 2014 (9 years). In total, 4260 authors from 74 countries were represented, with 6884 collaborative ties. Annual meetings reflected more international collaboration than the journal on several dimensions, including a large internationally connected giant component of collaborating authors evident in annual meetings, but not the journals. In annual meetings, there were more collaborations between WEIRD and non-WEIRD authors. However, even at annual meetings, deep internationalization involving non-WEIRD authors was rare, and the activities of the Society primarily represent academics from WEIRD countries, particularly the United States.     

Early language outcomes in Argentinean toddlers: Associations with home literacy,screen exposure and joint media engagement

This study aimed to analyse the contribution of mothers' home literacy beliefs and practices and the quantity and quality of screen media exposure on Argentinean toddler's language. In addition, we considered parent–child joint engagement, as well as adult scaffolding behaviours during the use of electronic devices. A total of 465 mothers of 18–36 months old children completed an online survey including: the MacArthur Bates CDI, home literacy, screen exposure, joint engagement and scaffolding questionnaires. We observed positive effects of literacy beliefs, PC times and verbal scaffolding on language outcomes. TV exposure contributed negatively to vocabulary and, along with educational content, to sentence use. Shared reading and screen media experiences can be an opportunity for language stimulation, provided there is dialogue and joint engagement. Passive screen exposure and inadequate content may be detrimental for toddlers' language outcomes, probably by displacement of socially significant interactions.