Adaptive patterns of stress responsivity: a preliminary investigation

The adaptive calibration model (ACM) is an evolutionary-developmental theory of individual differences in stress responsivity. In this article, we tested some key predictions of the ACM in a middle childhood sample (N = 256). Measures of autonomic nervous system activity across the sympathetic and parasympathetic branches validated the 4-pattern taxonomy of the ACM via finite mixture modeling. Moreover, the 4 patterns of responsivity showed the predicted associations with family stress levels but no association with measures of ecological stress. Our hypotheses concerning sex differences in responsivity were only partly confirmed. This preliminary study provides initial support for the key predictions of the ACM and highlights some of the methodological challenges that will need to be considered in future research on this topic.     

When do adaptive developmental mechanisms yield maladaptive outcomes?

This article discusses 3 ways in which adaptive developmental mechanisms may produce maladaptive outcomes. First, natural selection may favor risky strategies that enhance fitness on average but which have detrimental consequences for a subset of individuals. Second, mismatch may result when organisms experience environmental change during ontogeny, for instance, because they move from one environment to another. Third, organisms may learn about their environment in order to develop an appropriate phenotype; when cues indicate the environmental state probabilistically, as opposed to deterministically, sampling processes may produce mismatch. For each source of maladaptation, we present a selection of the relevant empirical research and illustrate how models from evolutionary biology can be used to make predictions about maladaptation. We also discuss what data can be collected to test these models in humans. Our goal is to show that evolutionary approaches not only yield insights into adaptive outcomes but can also illuminate the conditions leading to maladaptation. This perspective provides additional nuance to the dialectic between the developmental psychopathology model and evolutionary developmental psychology.     

Be aware to care: Public self-awareness leads to a reversal of the bystander effect

The classic bystander effect stipulates that people help others more when they are alone than when other bystanders are present. We reason that, sometimes, the presence of bystanders can increase helping, notably in situations where public self-awareness is increased through the use of accountability cues (e.g., a camera). We conducted two experiments in which we tested this line of reasoning. In both experiments, participants read messages soliciting support in an online forum. We varied the number of people that were present in that forum to create a bystander and an alone condition. In Study 1, we introduced an accountability cue by making participants' screen-names more salient, and in Study 2, we used a webcam. Both studies indicate that, as expected, the bystander effect can be reversed by means of cues that raise public self-awareness in social settings.     

The formation of implicit and explicit attitudes for neutral and valenced stimuli using the self

In Evaluative Conditioning (EC) studies, novel Conditioned Stimuli (CSs) are usually selected so to be neutral. However, in real life, because of the tendency of humans to evaluate novel stimuli automatically, novel CSs are very often initially valenced. From the literature little is known on whether EC can be successful under these conditions. In this contribution we applied a specific EC paradigm, namely self-referencing (SR) task, to new fictitious social groups. We present three studies. The first preliminary study is a pretest for selecting novel CSs. We examined the valence of four fictitious novel groups with both direct (semantic differential) and indirect (IAT) measures. The results showed that one pair was neutral (Lerriani vs. Dattiani) and the other was valenced (Niffiani, CS+ vs. Duppiani, CS?). In the second and third studies, we applied the SR paradigm to the neutral and initially valenced CSs. The results revealed a significant EC effect on both indirect and direct measures, such that the groups associated with the self became more positive and the groups associated with the other became more negative. The effects were found for both neutral and initially valenced groups, therefore showing that neutrality is not a prerequisite for EC effects. If anything, the effects were stronger for the initially valenced groups, especially on the indirect measure. Results are discussed in light of the detection of EC effects for both neutral and initially valenced CSs.     

A brief review on the use of functional near-infrared spectroscopy (fNIRS) for language imaging studies in human newborns and adults

Upon stimulation, real time maps of cortical hemodynamic responses can be obtained by non-invasive functional near-infrared spectroscopy (fNIRS) which measures changes in oxygenated and deoxygenated hemoglobin after positioning multiple sources and detectors over the human scalp. The current commercially available transportable fNIRS systems have a time resolution of 1-10 Hz, a depth sensitivity of about 1.5 cm, and a spatial resolution of about 1 cm. The goal of this brief review is to report infants, children and adults fNIRS language studies. Since 1998, 60 studies have been published on cortical activation in the brain’s classic language areas in children/adults as well as newborns using fNIRS instrumentations of different complexity. In addition, the basic principles of fNIRS including features, strengths, advantages, and limitations are summarized in terms that can be understood even by non specialists. Future prospects of fNIRS in the field of language processing imaging are highlighted.     

Weak reciprocity alone cannot explain peer punishment

The claims about (1) the lack of empirical support for a model of strong reciprocation and (2) the irrelevant empirical role of costly punishment to support cooperation in the field need qualifications. The interpretation of field evidence is not straightforward, and other-regarding preferences are also likely to play a role in the field.     

Narrative, meaning, interpretation: an enactivist approach

After establishing its roots in basic forms of sensorimotor coupling between an organism and its environment, the new wave in cognitive science known as ??enactivism?? has turned to higher-level cognition, in an attempt to prove that even socioculturally mediated meaning-making processes can be accounted for in enactivist terms. My article tries to bolster this case by focusing on how the production and interpretation of stories can shape the value landscape of those who engage with them. First, it builds on the idea that narrative plays a key role in expressing the values held by a society, in order to argue that the interpretation of stories cannot be understood in abstraction from the background of storytelling in which we are always already involved. Second, it presents interpretation as an example of what Di Paolo et al. (2010) have called in their recent enactivist manifesto a ??joint process of sensemaking??: just like in face-to-face interaction, the recipient of the story collaborates with the authorial point of view, generating meaning. Third, it traces the meaning brought into the world by interpretation to the activation and, potentially, the restructuring of the background of the recipients of the story.     

Self-body recognition depends on implicit and explicit self-esteem

The present contribution bridges research on body image, self-esteem, and body recognition. Recent work in neuroscience indicates a superiority in the processing of self relative to others’ body parts. The present contribution shows that this ability is not universal but it is qualified by individual differences in implicit and explicit self-esteem. In fact, two studies (n₁ = 41 and n₂ = 35) using two different paradigms in body recognition and direct and indirect measures of self-esteem reveal that this advantage in recognizing one's own body parts is associated with one's level of self-esteem. Moreover, it appears that measures of implicit and explicit self-esteem provide different contributions to self-body recognition abilities and that these contributions depend on how self-body recognition is assessed. Implications of these results are discussed notably in the perspective of research on body image.     

Sensing Aliveness

This study examines whether the categories animate/inanimate might be formed on the basis of information available to the cognitive system. We suggest that the discrimination of percepts according to these categories relies on proprioceptive information, which allows the perceiving subject to know that he is ‘animate’. Since other ‘objects’ in the world exhibit movements, reactions, etc. similar to those that the subject experiences himself, he can ‘project’ his knowledge onto these objects and recognize them as ‘animate’ like himself. On this basis we try to corroborate the empricist position in the debate concerning the organization of knowledge as opposed to the nativist view. Furthermore, we argue that the categorical dichotomy animate/inanimate is more basic than other analogous ones such as living/non-living, biological/non-biological and we sketch a ‘categorical stratification’ following the line ‘humans–animals–plants’ based on the hypothesis that humans detect different degrees of ‘vitality’ according to the degree of similarity they recognise between the considered instance and themselves.     

Creativity and innovation at work: the role of work characteristics and personal initiative

In this longitudinal study, we examined the role of work characteristics (creative requirement, job control, coworker and supervisor support) and personal initiative for teachers' idea generation, idea promotion, and idea implementation. Eighty-nine teachers responded to two surveys with an interval of two weeks. Hierarchical regression analyses showed that creative requirement and job control predicted idea generation, whereas support from coworkers and the supervisor predicted idea promotion. Coworker and supervisor support, as well as teachers' personal initiative, predicted idea implementation.