Memory is not extinguished along with CS presentation but within a few seconds after CS-offset

Prior work with the crab's contextual memory model showed that CS-US conditioned animals undergoing an unreinforced CS presentation would either reconsolidate or extinguish the CS-US memory, depending on the length of the reexposure to the CS. Either memory process is only triggered once the CS is terminated. Based on these results, the following questions are raised. First, when is extinction memory acquired, if not along extinction training, and how long does it take? Second, can acquisition and consolidation of extinction memory be pharmacologically dissected? Here we address these questions performing three series of experiments: a first one aimed to study systematically the relationship between extinction and increasing periods of unreinforced CS presentations, a second one to determine the time boundaries of the extinction memory acquisition, and the third one to assay the requirement for protein synthesis and NMDA-like receptors of acquisition and consolidation of extinction memory. Our results confirm that it is CS-offset and not the mere retrieval (CS-onset) that triggers acquisition of extinction memory and that it is completed in less than 45 sec after CS-offset. In addition, protein synthesis is required for consolidation but not for acquisition of this memory and, conversely, NMDA-like receptor activity is required for its acquisition but not for its consolidation. Finally, we offer an interpretative scheme of our results and we discuss to what extent it could apply to multitrial extinction.     

Enhancing the Culture of Research Ethics on University Campuses

Institutions create their own internal cultures, including the culture of ethics that pervades scientific research, academic policy, and administrative philosophy. This paper addresses some of the issues involved in institutional enhancement of its culture of research ethics, focused on individual empowerment and strategies that individuals can use to initiate institutional change.     

Enhancing challenged students' recognition of mathematical relations through differential outcomes training

Previous studies have reported that the differential outcomes procedure enhances learning and memory in special populations with cognitive deficits (see Goeters, Blakely, & Poling, 1992, for a review). In the present study we extend these findings to healthy adults who were asked to discriminate between the symbols " > " and " < " in mathematical statements. In Experiment 1, the performance of participants who showed difficulties in discriminating between these symbols was better (shorter response times) for the differential outcomes condition than for the nondifferential outcomes condition. In Experiment 2, the difficulty of the task was increased by using signed decimal numbers. Similar to Experiment 1, participants who initially had difficulties in discriminating between the symbols showed better performance (higher accuracy) for the differential outcomes condition than for the nondifferential outcomes condition, but only when both numbers were negative. These findings suggest that the differential outcomes procedure can be used to improve performance of challenged healthy adults on discrimination tasks with mathematical symbols and relations.     

Language and metaphysics: the case of theoretical identities

Kripke holds the thesis that identity statements containing natural kind terms are if true, necessarily true; these statements can be denominated theoretical identities. Kripke alleges that the necessity of theoretical identities grounds on the linguistic feature that natural kind terms are rigid designators. Nevertheless, I argue that the conception of natural kind terms as rigid designators, in one of their most natural views, hinders the establishment of the truth of theoretical identities and thus of their necessity. However, in Kripke’s works another proposal, not linguistic but metaphysical, is found to justify the presumed necessity of theoretical identities; it grounds on essentialism concerning natural kinds. In this regard, I question some of Kripke’s main claims, focusing on one of the main examples of theoretical identities put forward by Kripke, i.e., “Water is H\(_2\)O”. I challenge his a priori claims concerning what should be the essence of a natural kind like water. Furthermore, I adduce that the character of that theoretical identity is not that claimed by Kripke, since in the term flanking the right side of the identity sign it has to be resorted to the notion of similarity or it should have the form of a disjunction of a cluster of substances.

     

Structural and Community Change Outcomes of the Connect‐to‐Protect Coalitions: Trials and Triumphs Securing Adolescent Access to HIV Prevention,Testing, and Medical Care

Connect to Protect (C2P), a 10‐year community mobilization effort, pursued the dual aims of creating communities competent to address youth's HIV‐related risks and removing structural barriers to youth health. We used Community Coalition Action Theory (CCAT) to examine the perceived contributions and accomplishments of 14 C2P coalitions. We interviewed 318 key informants, including youth and community leaders, to identify the features of coalitions’ context and operation that facilitated and undermined their ability to achieve structural change and build communities’ capability to manage their local adolescent HIV epidemic effectively. We coded the interviews using an a priori coding scheme informed by CCAT and scholarship on AIDS‐competent communities. We found community mobilization efforts like C2P can contribute to addressing the structural factors that promote HIV‐risk among youth and to community development. We describe how coalition leadership, collaborative synergy, capacity building, and local community context influence coalitions’ ability to successfully implement HIV‐related structural change, demonstrating empirical support for many of CCAT's propositions. We discuss implications for how community mobilization efforts might succeed in laying the foundation for an AIDS‐competent community.     

People with intellectual disability who are ageing: Perceived needs assessment

Background/Objective: Ageing and progressive increase in life expectancy in people with intellectual disability present significant challenges. The present study is to examine the needs that arise in the aging process of this population. To detect these needs is fundamental to ensure personal wellbeing; almost no psychometrically sound instruments have been developed. Method: A structured interview was developed and evaluated by a panel of 20 experts to obtain evidence of content validity. The interview was then applied to 1,173 people with intellectual disability. The ages ranged from 35 to 80 (M = 52.27; SD = 7.5). Results: The interview consisted of 93 items evaluating four areas: perceived needs, personal problems, future perspectives, and solutions required. The results demonstrated the proximity and relationship of the various needs evaluated. In addition it was observed that those with intellectual disability who were older, male and users of residential services tended to indicate more needs, problems, and required more solutions. Conclusions: The instrument has adequate evidence of validity, allowing the evaluation of specific needs of people with intellectual disability. The results advocate the design of transversal intervention policies in order to effectively meet the needs and requirements of this population.     

Externalizing Behavior in at-Risk Preadolescents: Relationships among Effortful Control,Affective Experiences,and Autonomic Psychophysiology

This study examined the impact of autonomic self-regulation, affective experience, and effortful control on externalizing behavior in preadolescents (n = 360) deemed at-risk for aggression. Autonomic self-regulation was assessed using measurements of respiratory sinus arrhythmia and skin conductance levels as markers for parasympathetic and sympathetic functioning. Affective experience and effortful control constructs were derived using scales from the Early Adolescent Temperament Questionnaire. Structural equation modeling indicated that sympathetic and parasympathetic functioning predicted externalizing behavior even when accounting for the influence of temperament traits. These significant associations were small in magnitude. As expected, higher parasympathetic and lower sympathetic reactivity predicted greater externalizing behavior. Effortful control and affective experience also independently predicted problem behavior when accounting for autonomic functioning and each other’s influence as evidenced by small to medium significant associations. Lower levels of these constructs predicted higher problem behavior. Implications for the prevention and treatment of externalizing behavior are discussed.     

Psycho-ophthalmology: Contributions of Health psychology to the assessment and treatment of glaucoma

Background: Asymptomatic in its early stages, glaucoma is the second leading cause of blindness worldwide. While psychosocial factors are taken into consideration for a host of diseases such as cancer, heart disease and autoimmune conditions, to date, psychological issues have been ignored in the clinical management of glaucoma.

Objective: This work reviews the most relevant contributions from a health psychology perspective for the assessment and treatment of glaucoma, which is emerging in the field of psycho-ophthalmology.

Method: To provide scientific evidence regarding contributions of psychology to the comprehension of glaucoma, a bibliographic review of three databases (Psicodoc, PsycInfo and Medline) was conducted, spanning the period between 1940 and 2016.

Results: This review yielded a total of 66 studies published in the period analysed and identified three areas where health psychology has made substantive contributions to glaucoma screening, monitoring and treatment: the emotional impact on patients suffering from glaucoma, the adherence to treatment and the effects of stress on intraocular pressure.

Conclusions: A health psychology approach for research and therapy of glaucoma must focus on the management of the negative affect associated with the diagnosis, the optimisation of treatment adherence and the stress management of the intraocular pressure measurements.     

“I was and still am”: Narratives of Bisexual Marking in the #StillBisexual Campaign

This research investigated narratives of bi-erasure and bisexual marking by considering 53 video confessionals associated with the #StillBisexual campaign. #StillBisexual is a web-based campaign that targets myths about bisexuality and promotes bisexual identity visibility. Thematic analysis was conducted to identify emergent themes regarding the ways that individuals mark and make known their bisexuality. Three major themes of bisexual demarcation emerged including the enduring nature of bisexuality, defining bisexuality, and defining the self as a bisexual being. Discussion focuses on describing bisexual marking approaches by #StillBisexual participants and by analyzing the way bisexual demarcation challenges assumptions of monosexism and cisgenderism inherent to cultural conceptualizations of sexuality.