Exploring the role of primary and supplementary motor areas in simple motor tasks with fNIRS

Studies employing functional magnetic resonance imaging (fMRI) have highlighted a covariation between the amplitude of hemodynamic responses recorded in primary and supplementary motor areas (M1 and SMA) and the duration of a motor task. A subset of these studies have hinted to a possible functional dissociation between processing carried out in these areas, with SMA primarily involved in action preparation, while M1 involved in action execution. This proposed functional dissociation was explored in the present study using a different technique—functional near-infrared spectroscopy—which enabled a finer-grained monitoring of the temporal characteristics of the hemodynamic response compared to fMRI. Here, hemodynamic responses in M1 and SMA were recorded in 7 participants during a right-finger-tapping task of short (1 s) or long (3 s) duration. Hemodynamic responses of larger amplitude were recorded from both contralateral M1 and SMA during long-duration than short-duration tapping. Furthermore, the analysis of the temporal profiles of these responses revealed a more sustained and prolonged activity for long-duration versus short-duration tapping in M1, but not in SMA. Rather than functionally dissociable areas, the present results are more compatible with the hypothesis that M1 and SMA subserve different, though strongly interacting, functional subroutines subtended in motor task preparation and execution.     

Perceived Neighborhood Social Resources as Determinants of Prosocial Behavior in Early Adolescence

The present study aims to develop an integrative model that links neighborhood behavioral opportunities and social resources (neighborhood cohesion, neighborhood friendship and neighborhood attachment) to prosocial (sharing, helping, empathic) behavior in early adolescence, taking into account the potential mediating role of perceived support of friends. Path analysis was used to test the proposed theoretical model in a sample of 1,145 Italian early adolescents (6th through 8th graders). More perceived opportunities and social resources in the neighborhood are related to higher levels of adolescent prosocial behavior, and this relationship is partially mediated by perceived social support from friends. The results offer promising implications for future research and intervention programs that aim to modify social systems to improve child and adolescent social competencies.     

An inhibition effect in the temporal constrains of attentional selection: the Backward Blink

The study aims at investigating the dynamics of visual information processing during sequential control of attentional selection. By combining two different traditional paradigms we show for the first time that during rapid selection of visual targets, encoding of a new target stimulus is facilitated by suppression of the preceding relevant stimulus category (Backward Blink; BB). Such inhibition would operate to reduce interference from previously stored information, in order to facilitate the instantiation of a new attentional episode. Results suggest that the same underlying inhibitory mechanism might contribute to two different attentional effects, specifically, the switch cost and the Attentional Blink, suggesting a general inhibitory mechanism of attentional control, with broad implications for understanding how the brain perceives any task-relevant stimulus.     

Fairness,self-deception and political obligation

I offer a new account of fair-play obligations for non-excludable benefits received from the state. Firstly, I argue that non-acceptance of these benefits frees recipients of fairness obligations only when a counterfactual condition is met; i.e. when non-acceptance would hold up in the closest possible world in which recipients do not hold motivationally-biased beliefs triggered by a desire to free-ride. Secondly, I argue that because of common mechanisms of self-deception there will be recipients who reject these benefits without meeting the counterfactual condition. For this reason, I suggest that those who reject non-excludable benefits provided by the state have a duty to support their rejection with adequate reasons. Failing that, they can be permissibly treated as if they had fair-play obligations (although in fact they might not have them). Thus, I claim that there is a distinction, largely unappreciated, between the question of whether we have a duty of fairness to obey the law and the question of whether we can be permissibly treated as if we had one.     

Advocacy,brainwashing theories,and new religious movements

Advocacy by scholars in the field of new religious movements emerged during the ‘cult wars,’ which in the U.S. had their peak between 1970 and 1990 and continued in Europe and Japan in subsequent decades. Advocacy focused on the question of whether the ‘cults’ used a persuasion technique known as brainwashing. The idea of brainwashing was born during the Cold War, and originally applied to Communist techniques of indoctrination, but was lately first extended to religion and subsequently used as a tool to distinguish between legitimate and non-legitimate religions, labeling the latter as ‘cults.’ Prominent psychologists and sociologists were involved in these battles, with most scholars of new religious movements appearing in court in order to criticize the brainwashing theories advocated by psychologist Margaret T. Singer and a handful of anti-cult academics. After the Fishman decision of 1990, which seriously hit the anti-cult camp, advocacy in this field did not disappear but became somewhat less partisan.     

BDNF serum levels in subjects developing or not post-traumatic stress disorder after trauma exposure

Post-traumatic stress disorder (PTSD) is a syndrome resulting from exposure to a severe traumatic event that poses threatened death or injury and produces intense fear and helplessness. The neural structures implicated in PTSD development belong to the limbic system, an important region for emotional processing. Brain-derived neurotrophic factor (BDNF) is a neurotrophin that serves as survival factor for selected populations of central nervous system (CNS) neurons and plays a role in the limbic system by regulating synaptic plasticity, memory processes and behavior. Impaired BDNF production in the brain can lead to a variety of CNS dysfunctions including symptoms associated with PTSD. However, so far fewer studies have investigated this neurotrophin in patients with PTSD. Furthermore, given the multiple role of BDNF in various CNS disorders, it cannot be excluded that traumatic events per se may influence neurotrophin levels, without a direct association to the PTSD syndrome.     

Interspecies transmission of emotional information via chemosignals: from humans to dogs (<Emphasis Type="Italic">Canis lupus familiaris</Emphasis>)

We report a study examining interspecies emotion transfer via body odors (chemosignals). Do human body odors (chemosignals) produced under emotional conditions of happiness and fear provide information that is detectable by pet dogs (Labrador and Golden retrievers)? The odor samples were collected from the axilla of male donors not involved in the main experiment. The experimental setup involved the co-presence of the dog’s owner, a stranger and the odor dispenser in a space where the dogs could move freely. There were three odor conditions [fear, happiness, and control (no sweat)] to which the dogs were assigned randomly. The dependent variables were the relevant behaviors of the dogs (e.g., approaching, interacting and gazing) directed to the three targets (owner, stranger, sweat dispenser) aside from the dogs’ stress and heart rate indicators. The results indicated with high accuracy that the dogs manifested the predicted behaviors in the three conditions. There were fewer and shorter owner directed behaviors and more stranger directed behaviors when they were in the “happy odor condition” compared to the fear odor and control conditions. In the fear odor condition, they displayed more stressful behaviors. The heart rate data in the control and happy conditions were significantly lower than in the fear condition. Our findings suggest that interspecies emotional communication is facilitated by chemosignals.     

The role of threat,emotions, and prejudice in promoting collective action against immigrant groups

In two studies we assessed the role of distinctiveness threat, group‐based emotions (angst, fear, and anger), and prejudice on people's willingness to engage in collective action against immigrant groups. In Study 1 (N = 222) White British participants were either informed that in the next 40 years the proportion of immigrants in the UK is unlikely to change (control condition) or that there will be more immigrants than White British people living in Britain (threat condition). We obtained support for a sequential multiple mediator model in which threat predicted British people's willingness to engage in collective action via the emotions first and then prejudice. This finding was replicated in Study 2 with an Italian sample (N = 283). These results enhance understanding of when and why advantaged groups undertake collective action against disadvantaged groups by demonstrating that distinctiveness threats and emotions promote such actions.     

Borderline Personality Disorder in Adolescence Through the Lens of the Interview of Personality Organization Processes in Adolescence (IPOP-A): Clinical Use and Implications

Borderline personality disorder can be assessed in adolescence mainly through a dimensional approach that takes into account strengths and weaknesses of emerging personality patterns. Clinical interviews could help clinicians to gather information about adolescent’s functioning, fostering therapeutic alliance and promoting a mentalizing stance during the assessment of borderline adolescents. In this article, the Interview of Personality Organization Processes in Adolescence (IPOP-A) is presented through clinical case material to show its usefulness in clinical and research settings. The IPOP-A assesses an adolescent’s emerging personality along three dimensions: identity, quality of object relations and affect regulation. These dimensions are the core of borderline personality in adolescence.