ABSTRACT
When a single choice impacts on life outcomes, faculties to make ethical judgments come into play. Here we studied decisions in a real-life setting involving life-and-death outcomes that affect others and the decision-maker as well. We chose a genuine situation where prior training and expertise play a role: firefighting in life-threatening situations. By studying the neural correlates of dilemmas involving life-saving decisions, using realistic firefighting situations, allowed us to go beyond previously used hypothetical dilemmas, while addressing the role of expertise and the use of coping strategies (n = 47). We asked the question whether the neural underpinnings of deontologically based decisions are affected by expertise. These realistic life-saving dilemmas activate the same core reward and affective processing network, in particular the ventromedial prefrontal cortex, nucleus accumbens and amygdala, irrespective of prior expertise, thereby supporting general domain theories of ethical decision-making. We found that brain activity in the hippocampus and insula parametrically increased as the risk increased. Connectivity analysis showed a larger directed influence of the insula on circuits related to action selection in non-experts, which were slower than experts in non rescuing decisions. Relative neural activity related to the decision to rescue or not, in the caudate nucleus, insula and anterior cingulate cortex was negatively associated with coping strategies, in experts (firefighters) suggesting practice-based learning. This shows an association between activity and expert-related usage of coping strategies. Expertise enables salience network activation as a function of behavioural coping dimensions, with a distinct connectivity profile when facing life-rescuing dilemmas.
Subject(s)
Decision Making , Firefighters , Humans , Firefighters/psychology , Decision Making/physiology , Male , Adult , Female , Magnetic Resonance Imaging , Brain/physiology , Brain/diagnostic imaging , Adaptation, Psychological/physiology , Brain Mapping , Prefrontal Cortex/physiology , Prefrontal Cortex/diagnostic imagingABSTRACT
OBJECTIVES: This study aimed to investigate the relationship between the aspect ratios of mandibular molar roots at the apical 3-mm level and their root canal complexity. DESIGN: This study used micro-CT imaging to analyze 163 two-rooted mandibular molars. The aspect ratios of the roots at the apical 3-mm level were categorized as "< 2.75" or "≥ 2.75" (mesial) and "< 1.75" or "≥ 1.75" (distal). A two-dimensional (2D) analysis focused on four apical axial cross-section levels to determine the presence of main and accessory canals and isthmus. Additionally, a three-dimensional (3D) assessment of the apical 4-mm of both roots examined main and accessory canals, apical foramina, apical deltas, and middle mesial canals. RESULTS: Mesial roots with aspect ratios ≥ 2.75 showed a higher number of main canals at all levels compared to those with aspect ratios < 2.75 at the 3-mm level. Additionally, the ≥ 2.75 group exhibited more accessory canals and a higher average number of accessory canals. The 3D assessment confirmed significantly more accessory canals and apical foramina in the ≥ 2.75 group. The prevalence of roots with apical deltas was nearly double in the ≥ 2.75 group, and middle mesial canals were exclusively found in this group. In the distal root, the ≥ 1.75 group showed a significantly higher number of main canals at all axial levels. No significant differences were observed between groups in terms of accessory canals, apical foramina, or deltas. CONCLUSIONS: A higher root aspect ratio is related to higher anatomical complexity.
Subject(s)
Dental Pulp Cavity , Mandible , Molar , Tooth Root , X-Ray Microtomography , X-Ray Microtomography/methods , Humans , Molar/diagnostic imaging , Molar/anatomy & histology , Mandible/diagnostic imaging , Mandible/anatomy & histology , Tooth Root/diagnostic imaging , Tooth Root/anatomy & histology , Dental Pulp Cavity/anatomy & histology , Dental Pulp Cavity/diagnostic imaging , Imaging, Three-Dimensional/methods , Tooth Apex/diagnostic imaging , Tooth Apex/anatomy & histologyABSTRACT
During vertebrate embryo development, the body is progressively segmented along the anterior-posterior (A-P) axis early in development. The rate of somite formation is controlled by the somitogenesis embryo clock (EC), which was first described as gene expression oscillations of hairy1 (hes4) in the presomitic mesoderm of chick embryos with 15-20 somites. Here, the EC displays the same periodicity as somite formation, 90 min, whereas the posterior-most somites (44-52) only arise every 150 minutes, matched by a corresponding slower pace of the EC. Evidence suggests that the rostral-most somites are formed faster, however, their periodicity and the EC expression dynamics in these early stages are unknown. In this study, we used time-lapse imaging of chicken embryos from primitive streak to somitogenesis stages with high temporal resolution (3-minute intervals). We measured the length between the anterior-most and the last formed somitic clefts in each captured frame and developed a simple algorithm to automatically infer both the length and time of formation of each somite. We found that the occipital somites (up to somite 5) form at an average rate of 75 minutes, while somites 6 onwards are formed approximately every 90 minutes. We also assessed the expression dynamics of hairy1 using half-embryo explants cultured for different periods of time. This showed that EC hairy1 expression is highly dynamic prior to somitogenesis and assumes a clear oscillatory behaviour as the first somites are formed. Importantly, using ex ovo culture and live-imaging techniques, we showed that the hairy1 expression pattern recapitulates with the formation of each new pair of somites, indicating that somite segmentation is coupled with EC oscillations since the onset of somitogenesis.
Subject(s)
Avian Proteins , Somites , Animals , Chick Embryo , Chickens , Basic Helix-Loop-Helix Transcription Factors/genetics , Avian Proteins/genetics , Mesoderm/metabolismABSTRACT
OBJECTIVES: The aim of this study was to assess cone beam computed tomography (CBCT) as a root canal anatomy diagnostic tool by comparison with micro-CT gold-standard. MATERIALS AND METHODS: 216 two-rooted mandibular molars were first scanned in a CBCT device (200 µm voxel size) and posteriorly in a micro-CT scanner (19.61 µm). The volumes were sequentially screened to classify main root canal anatomy according to Vertucci classification, and for the presence of lateral canals and apical deltas, in both mesial and distal roots. RESULTS: Both methods revealed a higher prevalence of Vertucci Type II and IV in the mesial root, and Vertucci Type I in the distal root. The percentage of agreement for main root canal anatomy classification between CBCT and micro-CT scores was high (85.2%). CONCLUSION: Sensibility to detect both lateral canals and apical deltas with CBCT was low. These results attest to the fact that minor anatomical changes might be difficult to identify with CBCT imaging, hampering its diagnostic value.
Subject(s)
Dental Pulp Cavity , Mandible , Dental Pulp Cavity/diagnostic imaging , Dental Pulp Cavity/anatomy & histology , X-Ray Microtomography , Mandible/diagnostic imaging , Cone-Beam Computed Tomography/methods , Tooth Root/diagnostic imaging , Tooth Root/anatomy & histologyABSTRACT
Type 2 diabetes (T2D) often impairs memory functions, suggesting specific vulnerability of the hippocampus. In vivo neuroimaging studies relating encoding and retrieval of memory information with endogenous neuroprotection are lacking. The neuroprotector glucagon-like peptide (GLP-1) has a high receptor density in anterior/ventral hippocampus, as shown by animal models. Using an innovative event-related fMRI design in 34 participants we investigated patterns of hippocampal activity in T2D (n = 17) without mild cognitive impairment (MCI) versus healthy controls (n = 17) during an episodic memory task. We directly measured neurovascular coupling by estimating the hemodynamic response function using event-related analysis related to encoding and retrieval of episodic information in the hippocampus. We applied a mixed-effects general linear model analysis and a two-factor ANOVA to test for group differences. Significant between-group differences were found for memory encoding, showing evidence for functional reorganization: T2D patients showed an augmented activation in the posterior hippocampus while anterior activation was reduced. The latter was negatively correlated with both GLP-1 pre- and post-breakfast levels, in the absence of grey matter changes. These results suggest that patients with T2D without MCI have pre-symptomatic functional reorganization in brain regions underlying episodic memory, as a function of the concentration of the neuroprotective neuropeptide GLP-1.
ABSTRACT
Inhibition is implicated across virtually all human experiences. As a trade-off of being very efficient, this executive function is also prone to many errors. Rodent and computational studies show that midbrain regions play crucial roles during errors by sending dopaminergic learning signals to the basal ganglia for behavioural adjustment. However, the parallels between animal and human neural anatomy and function are not determined. We scanned human adults while they performed an fMRI inhibitory task requiring trial-and-error learning. Guided by an actor-critic model, our results implicate the dorsal striatum and the ventral tegmental area as the actor and the critic, respectively. Using a multilevel and dimensional approach, we also demonstrate a link between midbrain and striatum circuit activity, inhibitory performance, and self-reported autistic and obsessive-compulsive subclinical traits.
Subject(s)
Learning , Ventral Tegmental Area , Adult , Animals , Humans , Ventral Tegmental Area/physiology , Learning/physiology , Basal Ganglia , Corpus Striatum/physiology , Neural InhibitionABSTRACT
This study aims to assess the influence of root canal preparation, irrigation needle design and its placement depth in the irrigation flow of confluent canals during syringe irrigation. A mandibular molar presenting two confluent canals in its mesial root was sequentially prepared and scanned by micro-computed tomography after mechanical preparation up to ProTaper Next system sizes X2 (25/.06v), X3 (30/.07v) and X4 (40/.06v). In each of the root canal preparation models, a side-vented and an open-ended needle at 5, 3 and 2 mm from the working length were included, and irrigation flow was assessed by a validated computational fluid dynamics model. The results revealed that the irrigant flowed out of the confluent canals mainly through the canal that did not have the needle. Apical penetration and renewal of the irrigant were most efficiently achieved with the use of a 30G open-ended needle and a 30/.07v preparation.
Subject(s)
Dental Pulp Cavity , Hydrodynamics , Dental Pulp Cavity/diagnostic imaging , X-Ray Microtomography , Syringes , Root Canal Irrigants , Therapeutic Irrigation , Root Canal PreparationABSTRACT
Experimental approaches in neuroeconomics generally involve monetary utility. Utility in the health domain is relevant in diabetes because constant daily life decisions are critical for self-consequential long-term outcomes. We used fMRI to investigate self-consequent decision-making in the health and economic domains in Type 1 Diabetes Mellitus and controls (N = 50). We focused on two critical phases of decision-making: Investment and Feedback (Positive or Negative). Patients showed larger BOLD activation of limbic, and reward/dopaminergic regions in particular in the health trust game. Importantly, the worse the trajectory of metabolic control (increasing HbA1C), the higher the BOLD activity in regions of the interoceptive saliency network. This was manifested by positive correlations between brain activity during investment in anterior cingulate cortex and insula and HbA1c blood level progression. We conclude that the neural correlates of health-consequent decision-making domain involve limbic and reward related dopaminergic regions in Type 1 Diabetes Mellitus. Furthermore, the temporal trajectory of HbA1C blood levels is correlated with neural risk processing in the saliency network. Evidence for differential risk processing in the health versus the neuroeconomic context, and the discovery of a role for the saliency interoceptive network in metabolic control trajectories suggests a new perspective on the development of personalized interventions.
Subject(s)
Decision Making , Diabetes Mellitus, Type 1 , Humans , Glycated Hemoglobin , Decision Making/physiology , Brain Mapping , Diabetes Mellitus, Type 1/diagnostic imaging , Magnetic Resonance Imaging , RewardABSTRACT
L'anorexie est une pathologie du vide de sens, qui presente une défaillance au niveau des processus de la pensée, avec des implications directes au niveau de la construction identitaire. Le Rorschach a été utilise comme instrument d'évaluation du fonctionnement mental et comme méthode d'analyse des transformations psychiques. Martha est une adolescente de dix-sept ans, avec deux hospitalisations, avec un diagnostic d'anorexie. L'analyse du Rorschach à mettre en évidence deux mouvements psychiques: la présence d'une forte tension pulsionnelle, mobilisée face à l'atteinte ressentie dans la relation Moi-Autre; la dévitalisation du Moi, par un fort mouvement d'annulation du Moi. La compréhension de ces mouvements a permis une intervention thérapeutique dans le but de restaurer son Être, de consolider son identité et de permettre un ensemble de transformations psychiques qui permettent la subjectivation et la croissance mentale.
Resumos A anorexia é uma patologia do vazio do sentido, que apresenta uma falha ao nível dos processos do pensamento, com implicações diretas ao nível da construção da identidade. O Rorschach foi usado como um instrumento para aceder ao funcionamento mental e como um método de análise das transformações psíquicas. Martha é uma adolescente de dezessete anos, com duas internações, com um diagnóstico de anorexia. A análise de Rorschach permitiu destacar dois movimentos psíquicos: a presença de uma forte tensão pulsional, mobilizada perante o ataque sentido na relação Eu-Outro; a desvitalização do Eu, através de um movimento de uma forte anulação do próprio eu. A compreensão desses movimentos permitiu uma intervenção terapêutica com o objetivo de restaurar o seu Ser, consolidar sua identidade e permitir um conjunto de transformações psíquicas que possibilitam a subjetivação e o crescimento mental.
Anorexia is a pathology of the emptiness of meaning, which presents a failure at the level of thought processes, with direct implications in self-identity. Rorschach test was used as an instrument to assess mental functioning and as a method to analyze the psychic transformations. Martha is a 17-year-old adolescent, with two previous hospitalizations, diagnosed with anorexia. Through Rorschach test, it was possible to highlight two movements: the presence of a strong instinctual drive, mobilized in the face of the perceived attack in the Self-Other relationship; the devitalization of the Self, through a strong annulment of the self. The understanding of such movements enabled a therapeutic intervention aimed at restoring her Being, consolidating her identity and enabling a set of psychic transformations that allow for subjectivation and mental growth.
La anorexia es una patología del vacío de sentido, que presenta una falla al nivel de los procesos del pensamiento, con implicaciones directas en la construcción de la identidad. El Rorschach se utilizó como instrumento para evaluar el funcionamiento mental y como método de análisis de las transformaciones psíquicas. Martha es una adolescente de 17 anos, con dos hospitalizaciones y diagnóstico de anorexia. El análisis del Rorschach reveló dos movimientos psíquicos: la presencia de una fuerte tensión instintiva, movilizada frente al ataque sentido en la relación Yo-Otro; la desvitalización del Yo, mediante un fuerte movimiento de anulación del Yo. La comprensión de estos movimientos permitió aplicar una intervención terapéutica con el objetivo de restaurar el Ser de la paciente, consolidar su identidad y permitir un conjunto de transformaciones psíquicas que permitan la subjetivación y el crecimiento psíquico.
ABSTRACT
Hybrid collagen (Coll) bioscaffolds have emerged as a promising solution for tissue engineering (TE) and regenerative medicine. These innovative bioscaffolds combine the beneficial properties of Coll, an important structural protein of the extracellular matrix, with various other biomaterials to create platforms for long-term cell growth and tissue formation. The integration or cross-linking of Coll with other biomaterials increases mechanical strength and stability and introduces tailored biochemical and physical factors that mimic the natural tissue microenvironment. This work reports on the fabrication of chemically cross-linked hybrid bioscaffolds with enhanced properties from the combination of Coll, nanofibrillated cellulose (NFC), carboxymethylcellulose (CMC), and citric acid (CA). The bioscaffolds were prepared by 3D printing ink containing Coll-NFC-CMC-CA followed by freeze-drying, dehydrothermal treatment, and neutralization. Cross-linking through the formation of ester bonds between the polymers and CA in the bioscaffolds was achieved by exposing the bioscaffolds to elevated temperatures in the dry state. The morphology, pores/porosity, chemical composition, structure, thermal behavior, swelling, degradation, and mechanical properties of the bioscaffolds in the dry and wet states were investigated as a function of Coll concentration. The bioscaffolds showed no cytotoxicity to MG-63 human bone osteosarcoma cells as tested by different assays measuring different end points. Overall, the presented hybrid Coll bioscaffolds offer a unique combination of biocompatibility, stability, and structural support, making them valuable tools for TE.
Subject(s)
Tissue Engineering , Tissue Scaffolds , Humans , Tissue Scaffolds/chemistry , Biocompatible Materials/pharmacology , Biocompatible Materials/chemistry , Collagen/chemistry , Cellulose/pharmacology , Cellulose/chemistry , Printing, Three-DimensionalABSTRACT
Introduction: The presence of post-traumatic stress disorder (PTSD) symptomatology in firefighters is an ever-pressing issue that requires close attention for adequate interventions. The present study investigated PTSD and global psychopathology prevalence in a sample of highly risk-exposed Portuguese firefighters, collected after the widespread deadly wildfires in 2017 that ravaged the country. Following an action research approach, the aim of this study was to depict this sample and examine the impact of cumulative adverse experiences on their mental health, which is a phenomenon worth attention. Method: From an initial sample of 283 firefighters who manifested interest in participating, a total of 139 firefighters from the Coimbra District, of whom 130 unequivocally experienced a potentially traumatic/adverse event as a firefighter, completed BSI (to obtain indicators on psychopathology), QEPAT (an inventory of adverse events possibly experienced as a firefighter), and PCL-5 (a measure of PTSD symptomatology) through an online survey during the year 2018 by the Regional Medical Organization, as proposed and supervised by the local Centre for Prevention and Treatment of Psychological Trauma (CPTTP). Results: We found a global prevalence of 8.6% of possible PTSD and 14.4% of possible psychopathology (n = 139). When considering only firefighters who unequivocally reported a potentially traumatic/adverse event as a firefighter (n = 130), 9.2% present possible PTSD, and 13.8% present possible global psychopathology. This sample experienced a mean of 28 adverse events during firefighting work. Linear regressions (n = 118) demonstrated that the perceived severity of the most traumatic event reported and the experience of more adverse events were both related to an increase in PTSD symptomatology. Global psychopathology was associated with PCL-5 scores, with an emphasis on paranoid ideation, hostility, depression, anxiety, and phobic anxiety. Discussion: The severe wildfires of 2017 did not impact PTSD scores in this sample (collected the year after), suggesting that cumulative adverse events are more important than particular episodes. However, the number of reported events was related to PTSD scores. These results can be used to develop interventions that target all firefighters by addressing risk and protective factors. This action research study motivated specialized aid for firefighters involved in this study.
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The purpose of this work was to investigate the structural, thermal, micromechanical and tribological properties of novel polymer/metal composite materials for bearing applications. Copper (Cu)-filled Acrylonitrile Butadiene Styrene (ABS) composites were mixed in a laboratory scale by an internal mixer with two blade impellers, and then injection-molded. Neat ABS, ABS+5wt% Cu, ABS+10wt% Cu, and ABS+15wt% Cu were the four materials that were tested. The dispersion of Cu particles in the ABS matrix was investigated using Scanning Electron Microscopy (SEM) and a micro-tomography scan. The filler particles have a uniform distribution in the matrix, according to the observations. The incorporation of Cu filler also refined an increase in the glass transition temperature from Differential Scanning Calorimetry (DSC) and less intensity in the amorphous phase by X-ray diffraction (XRD). Nanoindentation tests were carried out to characterize the micro-mechanical behavior of the composites. Friction and wear analysis were also examined using a pin-on-disk tribometer. Compared with neat ABS, all the micro-composites showed much higher indentation hardness, Vickers hardness, and indentation elastic modulus. It was also concluded that the incorporation of Cu filler into ABS simultaneously improved the friction and wear properties of the composites, which contributed to the suitability of the micro-filled composites with hard metallic particles for a wider range of mechanical components for bearing applications.
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Future European agriculture should achieve high productivity while limiting its impact on the environment. Legume-supported crop rotations could contribute to these goals, as they request less nitrogen (N) fertilizer inputs, show high resource use efficiency and support biodiversity. However, legumes grown for their grain (pulses) are not widely cultivated in Europe. To further expand their cultivation, it remains crucial to better understand how different cropping and environmental features affect pulses production in Europe. To address this gap, we collected the grain yields of the most cultivated legumes across European countries, from both published scientific papers and unpublished experiments of the European projects LegValue and Legato. Data were integrated into an open-source, easily updatable dataset, including 5229 yield observations for five major pulses: chickpea (Cicer arietinum L.), faba bean (Vicia faba L.), field pea (Pisum sativum L.), lentil (Lens culinaris Medik.), and soybean (Glycine max (L.) Merr.). These data were collected in 177 field experiments across 21 countries, from 37° N (southern Italy) to 63° N (Finland) of latitude, and from ca. 8° W (western Spain) to 47° E (Turkey), between 1980 and 2020. Our dataset can be used to quantify the effects of the soil, climate, and agronomic factors affecting pulses yields in Europe and could contribute to identifying the most suitable cropping areas in Europe to grow pulses.
ABSTRACT
Background: Functional neuroimaging can provide pathophysiological information in perinatal asphyxia (PA). However, fundamental unresolved questions remain related to the influence of neurovascular coupling (NVC) maturation on functional responses in early development. We aimed to probe the feasibility and compare the responses to multiple sensory stimulations in newborns with PA using functional magnetic resonance imaging (fMRI) and functional near-infrared spectroscopy (fNIRS). Methods: Responses to visual, auditory, and sensorimotor passive stimulation were measured with fMRI and fNIRS and compared in 18 term newborns with PA and six controls. Results: Most newborns exhibited a positive fMRI response during visual and sensorimotor stimulation, higher in the sensorimotor. An asymmetric pattern (negative in the left hemisphere) was observed in auditory stimulation. The fNIRS response most resembling the adult pattern (positive) in PA occurred during auditory stimulation, in which oxyhemoglobin (HbO) increased, and deoxyhemoglobin (HbR) decreased. Significative differences were found in the HbO and HbR profiles in newborns with PA compared to the controls, more evident in auditory stimulation. Positive correlations between the fMRI BOLD signal and at least one fNIRS channel (HbO) in all stimuli in newborns with PA were identified: the strongest was in the auditory (r=0.704) and the weakest in the sensorimotor (r=0.544); in more fNIRS channels, in the visual. Conclusions: Both techniques are feasible physiological assessment tools, suggesting a distinctive level of maturation in sensory and motor areas. Differences in fNIRS profiles in newborns with PA and controls and the fMRI-fNIRS relationship observed can encourage the fNIRS as a clinically emergent valuable tool.
ABSTRACT
Additive manufacturing (AM), also known as three-dimensional (3D) printing, allows the fabrication of complex parts, which are impossible or very expensive to produce using traditional processes. That is the case for dinnerware and artworks (stoneware, porcelain and clay-based products). After the piece is formed, the greenware is fired at high temperatures so that these pieces gain its mechanical strength and aesthetics. The conventional (gas or resistive heating elements) firing usually requires long heating cycles, presently requiring around 10 h to reach temperatures as high as 1200 °C. Searching for faster processes, 3D-printed stoneware were fired using microwave (MW) radiation. The pieces were fired within 10% of the conventional processing time. The temperature were controlled using a pyrometer and monitored using Process Temperature Control Rings (PTCRs). An error of 1.25% was calculated between the PTCR (1207 ± 15 °C) and the pyrometer (1200 °C). Microwave-fast-fired pieces show similar mechanical strength to the references and to the electrically fast-fired pieces (41, 46 and 34 (N/mm2), respectively), presenting aesthetic features closer to the reference. Total porosities of ~4%, ~5% and ~9% were determined for microwave, electrically fast-fired and reference samples. Numerical studies have shown to be essential to better understand and improve the firing process using microwave radiation. In summary, microwave heating can be employed as an alternative to stoneware conventional firing methods, not compromising the quality and features of the processed pieces, and with gains in the heating time.
ABSTRACT
Stem cells encompass a variety of different cell types which converge on the dual capacity to self-renew and differentiate into one or more lineages. These characteristic features are key for the involvement of stem cells in crucial biological processes such as development and ageing. To decipher their underlying genetic substrate, it is important to identify so-called stemness genes that are common to different stem cell types and are consistently identified across different studies. In this meta-analysis, 21 individual stemness signatures for humans and another 21 for mice, obtained from a variety of stem cell types and experimental techniques, were compared. Although we observed biological and experimental variability, a highly significant overlap between gene signatures was identified. This enabled us to define integrated stemness signatures (ISSs) comprised of genes frequently occurring among individual stemness signatures. Such integrated signatures help to exclude false positives that can compromise individual studies and can provide a more robust basis for investigation. To gain further insights into the relevance of ISSs, their genes were functionally annotated and connected within a molecular interaction network. Most importantly, the present analysis points to the potential roles of several less well-studied genes in stemness and thus provides promising candidates for further experimental validation.
Subject(s)
Stem Cells , Humans , Animals , MiceABSTRACT
Introduction: We analyzed the importance of fan identity and brand strength on fans' neural reactions to different team-related stimuli. Methods: A total of 53 fMRI scans with fans of two professional sport teams were conducted. Following up on a previous study we focused on the differences between fandom levels as well as the contrast between two team "brand" strength. Neural responses were compared among individuals based on their levels of fan identity. In sum, group comparisons between relatively high and lower identity and between weak and strong teams were made based on the notion that the latter reflects team brand strength (strong brand and weak brand). Results: Findings indicate that brain activity in emotion regulation, memory, and cognitive control circuits is influenced by the relative level of fan identity. Discussion: Higher-level identified fans showed increased reactivity to positive stimuli and the under-recruitment of their cognitive appraisal circuits, suggesting more vulnerability to marketers' messages. The strength of the team brand activates different neural mechanisms. Interestingly, the posterior cingulate showed larger recruitment both for weaker brands and lower fan identification, suggesting that visual memory processes are more active in these cases. Neurally processed content depends on the relative brand's strength, highlighting the importance of brand-focused communications.
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L'adolescence est une période de développement qui se caractérise par la présence de forts contrastes, étant donné la nécessité de concilier le nouveau et l'inconnu, favorisant une avance dans la croissance. Le contexte scolaire est par excellence l'espace où se tissent et s'entretissent un ensemble de dynamiques basées sur la construction de processus identitaires et d'identification, favorisant la connaissance. Les autrices proposent de réfléchir aux transformations psychiques d'Eva, une adolescente de 15 ans, en suivi psychothérapeutique dans le cadre scolaire. Le Rorschach a été l'instrument d'évaluation à deux moments différents, à 12 et à 14 ans, permettant d'accéder et de décrire, les transformations psychiques de son adolescence. Cette nouvelle lecture est très bénéfique pour une meilleure planification et exécution du travail psychothérapeutique.
A adolescência é um período do desenvolvimento caracterizado pela presença de fortes contrastes, dada a necessidade de conciliar o novo e o desconhecido, favorecendo um avanço no crescimento. O contexto escolar é por excelência o espaço onde se vão tecendo um conjunto de dinâmicas e tramas baseadas na construção de processos identitários e de identificação, promovendo o autoconhecimento. As autoras propõem se pensar as transformações psíquicas de Eva, uma adolescente de 15 anos, em acompanhamento psicoterapêutico no contexto escolar. O Rorschach foi o instrumento de avaliação em dois momentos distintos, aos 12 e aos 14 anos, permitindo aceder e descrever as transformações psíquicas durante o processo de adolescer. Essa nova leitura é altamente benéfica para um melhor planeamento e execução do processo psicoterapêutico.
Adolescence is a period of development characterized by the presence of strong contrasts, given the need to reconcile the new and the unknown, favoring an advance in growth. The school context is par excellence the space where a set of dynamics are woven and woven based on the construction of identity and identification processes, promoting self-knowledge. The authors propose to think about the psychic transformations of Eva, a 15-year-old adolescent, undergoing psychotherapeutic follow-up in the school context. The Rorschach was the assessment instrument at two different times, at 12 and 14 years old, allowing access and describing the psychic transformations during the process of becoming an adolescent. This new reading is highly beneficial for better planning and execution of the psychotherapeutic process.
La adolescencia es un período de desarrollo caracterizado por la presencia de fuertes contrastes, dada la necesidad de conciliar lo nuevo y lo desconocido, favoreciendo un avance en el crecimiento. El contexto escolar és por excelencia el espacio donde se tejen y tejen un conjunto de dinámicas a partir de procesos de construcción de identidad e identificación, fomentando el autoconocimiento. Los autores proponen pensar las transformaciones psíquicas de Eva, una adolescente de 15 años, en seguimiento psicoterapéutico en el contexto escolar. El Rorschach fue el instrumento de evaluación en dos momentos diferentes, a los 12 y 14 años, permitiendo acceder y describir las transformaciones psíquicas durante el proceso de convertirse en una adolescente. Esta nueva lectura es altamente beneficiosa para una mejor planificación y pratica del proceso psicoterapéutico.
ABSTRACT
RESUMO A adolescência é uma fase do desenvolvimento que se caracteriza pela presença de importantes transformações psíquicas que constituem a base dos processos de identidade e de identificação. No contexto social atual, a capacidade de integrar as diferenças culturais é um imperativo do ponto de vista social e emocional, não só para os adolescentes, mas para todos os que com eles se relacionam, sejam pais, professores e técnicos de saúde. Neste artigo, a autora procura realizar uma dupla análise: (1) Apresentar o trabalho psicoterapêutico realizado com Juan, um adolescente de 17 anos, durante o qual é possível observar as mudanças inerentes à construção da sua identidade e dos processos de identificação, inspirando-se num clássico literário espanhol, Don Juan; (2) A utilização do Rorschach, como instrumento de acesso privilegiado ao mundo interior do sujeito, que permite uma compreensão singular das transformações psíquicas presentes no processo de tornar-se adolescente. A utilização do Rorschach desta forma é uma abordagem inovadora para compreender os processos psíquicos envolvidos, melhorando a intervenção na clínica. No caso de Juan, foi possível ver além do seu diagnóstico clínico, lançando novos olhares sobre as suas capacidades psíquicas, favorecendo a construção de uma postura mais adulta, visível no seu desempenho académico, nas relações interpessoais e na dinâmica familiar. Esse trabalho clínico só foi possível graças aos referenciais teóricos que enfatizam os processos de comunicação e de simbolização.
RESUMEN. La adolescencia es un periodo de desarrollo que se caracteriza por la presencia de importantes transformaciones que están en la base de los procesos de identidad y de identificación. En el contexto social actual, la capacidad de integrar las diferencias culturales es un imperativo desde el punto de vista social y emocional, no solo para los adolescentes, sino para cualquier persona que tenga relación con ellos, ya sean padres, docentes y técnicos de salud. En este artículo, el autor busca realizar un doble análisis: (1) Presentar el trabajo psicoterapéutico realizado con Juan, un adolescente de 17 años, durante el cual es posible observar los cambios inherentes a la construcción de su identidad e identificación, presentada aquí con inspiración de un clásico literario español, Don Juan; (2) El empleo de la prueba de Rorschach, como instrumento de acceso privilegiado al mundo interior del sujeto, que permite una comprensión singular de las transformaciones psíquicas implicadas en el proceso de convertirse en adolescente. La utilización del Rorschach de esta manera es un enfoque innovador para comprender los procesos psíquicos involucrados, mejorando así la intervención clínica. En el caso de Juan, fue posible mirar más allá de su diagnóstico clínico, permitiendo que esta nueva lectura resalte sus habilidades psíquicas, favoreciendo la construcción de un nuevo posicionamiento, visible en su éxito académico, en las relaciones interpersonales y en su dinámica familiar. Este trabajo clínico solo fue posible dado el nuevo marco teórico que enfatiza los procesos de comunicación y simbolización.
ABSTRACT Adolescence is a stage of development that is characterized by the presence of important psychic transformations that form the base of the processes of identity and identification. In the current social context, the ability to integrate cultural differences is an imperative from a social and emotional standpoint, not only for adolescents, but anyone who has a relationship with them, be they parents, teachers and health technicians. In this article, the author seeks to carry out two-fold analysis: (1) Present the psychotherapeutic work conducted with Juan, a 17-year-old adolescent, during which it is possible to observe the changes inherent to the construction of his identity and identification, presented here with inspiration from a Spanish literary classic, Don Juan; (2) The employment of the Rorschach test, as an instrument granting privileged access to the subject's inner world, which allows for a singular understanding of the psychic transformations involved in the process of becoming an adolescent. Applying a Rorschach test in this fashion is an innovative approach to understanding the psychic underpinnings involved, thereby enhancing clinical intervention. In Juan's case, it was possible to look beyond his clinical diagnosis, shedding new light on his psychic abilities, favoring the construction of a new position, one more adult and one evidenced in improved academic performance, interpersonal relationships, and family dynamics. This clinical work was further enabled by theoretical frameworks that emphasize the processes of communication and symbolization.
Subject(s)
Humans , Male , Adolescent , Rorschach Test , Adolescent/physiology , Psychosocial Intervention/instrumentation , Psychotherapy/instrumentation , Social Identification , Therapeutics/psychologyABSTRACT
Theoretical accounts on social decision-making under uncertainty postulate that individual risk preferences are context dependent. Generalization of models of decision-making to dyadic interactions in the personal health context remain to be experimentally addressed. In economic utility-based models, interactive behavioral games provide a framework to investigate probabilistic learning of sequential reinforcement. Here, we model an economic trust game in the context of a chronic disease (Diabetes Type 1) which involves iterated daily decisions in complex social contexts. Ninety-one patients performed experimental trust games in both economic and health settings and were characterized by a multiple self-report set of questionnaires. We found that although our groups can correctly infer pay-off contingencies, they behave differently because patients with a biological profile of preserved glycemic control show adaptive choice behavior both in economic and health domains. On the other hand, patients with a biological profile of loss of glycemic control presented a contrasting behavior, showing non-adaptive choices on both contexts. These results provide a direct translation from neuroeconomics to decision-making in the health domain and biological risk profiles, in a behavioral setting that requires difficult and self-consequential decisions with health impact. Our findings also provide a contextual generalization of mechanisms underlying individual decision-making under uncertainty.