Conversation analysis at work: detection of conflict in competitive discussions through semi-automatic turn-organization analysis

This study proposes a semi-automatic approach aimed at detecting conflict in conversations. The approach is based on statistical techniques capable of identifying turn-organization regularities associated with conflict. The only manual step of the process is the segmentation of the conversations into turns (time intervals during which only one person talks) and overlapping speech segments (time intervals during which several persons talk at the same time). The rest of the process takes place automatically and the results show that conflictual exchanges can be detected with Precision and Recall around 70% (the experiments have been performed over 6 h of political debates). The approach brings two main benefits: the first is the possibility of analyzing potentially large amounts of conversational data with a limited effort, the second is that the model parameters provide indications on what turn-regularities are most likely to account for the presence of conflict.     

Different involvement of type 1, 2, and 3 ryanodine receptors in memory processes

The administration of the ryanodine receptor (RyR) agonist 4-Cmc (0.003-9 nmol per mouse intracerebroventricularly [i.c.v.]) ameliorated memory functions, whereas the RyR antagonist ryanodine (0.0001-1 nmol per mouse i.c.v.) induced amnesia in the mouse passive avoidance test. The role of the type 1, 2, and 3 RyR isoforms in memory processes was then evaluated by inhibiting the expression of the three RyR proteins in the mouse brain. A selective knockdown of the RyR isoforms was obtained by the i.c.v. administration of antisense oligonucleotides (aODNs) complementary to the sequence of RyR1, RyR2 and RyR3 proteins, as demonstrated by immunoblotting experiments. RyR1 (5-9 nmol per mouse i.c.v.) knockdown mice did not show any memory dysfunction. Conversely, RyR2 (1-7 nmol per mouse i.c.v.) and RyR3 (1-7 nmol per mouse i.c.v.) knockdown animals showed an impairment of memory processes. This detrimental effect was temporary and reversible, disappearing 7 d after the end of the aODN treatment. At the highest effective doses, none of the compounds used impaired motor coordination, as revealed by the rota rod test, nor modified spontaneous mobility and inspection activity, as revealed by the hole-board test. In conclusion, the lack of any involvement of cerebral RyR1 was demonstrated. These findings also showed the involvement of type 2 and type 3 RyR in the modulation of memory functions identifying these cerebral RyR isoforms as critical targets underlying memory processes.     

Hedwig Conrad-Martius’ Phenomenological Approach to Life Sciences and the Question of Vitalism

The philosophy of Hedwig Conrad-Martius represents a very important intersection point between phenomenological research and the natural sciences in the twentieth century. She tried to open a common pattern from the ontology of the physical being up to anthropology, passing from the biological sciences. An intersection point that, for the particular features of her thought, is rather a perspective point from which to observe, in an interesting and original way, both natural sciences and phenomenology. The 1923 essay entitled Real Ontology (Conrad-Martius 1923) is the starting point for her reflections about science, but it is also the point that marks a separation from Husserl (for a detailed discussion, see: Ales Bello 2003, pp. 184–195), even if not from phenomenology. A fundamental question is faced: “why something instead of nothing?” or: “what is the reality?,” shifting the focus from essence to existence. Whichever the answer, a deeply realistic position must be assumed, based on the assumption of a clear distinction between the subject and the world, and the possibility of knowledge, intended as adaequatio of the subject’s intellectus to the external reality.     

Attachment and God representations among lay Catholics, priests, and religious: a matched comparison study based on the Adult Attachment Interview

Based on the idea that believers' perceived relationships with God develop from their attachment-related experiences with primary caregivers, the authors explored the quality of such experiences and their representations among individuals who differed in likelihood of experiencing a principal attachment to God. Using the Adult Attachment Interview (AAI), they compared attachment-related experiences and representations in a group of 30 Catholic priests and religious with a matched group of lay Catholics and with the worldwide normal distribution of AAI classifications. They found an overrepresentation of secure-autonomous states regarding attachment among those more likely to experience a principal attachment to God (i.e., the priests and religious) compared with the other groups and an underrepresentation of unresolved-disorganized states in the two groups of Catholics compared with the worldwide normal distribution. Key findings also included links between secure-autonomous states regarding attachment and estimated experiences with loving or nonrejecting parents on the one hand and loving God imagery on the other. These results extend the literature on religion from an attachment perspective and support the idea that generalized working models derived from attachment experiences with parents are reflected in believers' perceptions of God.     

Technology from the Standpoint of Sunyata

Keiji Nishitani's critique of technology as a dehumanizing force is objected to by showing that it is possible to establish a relationship with technology characterized by the standpoint of sunyata. In order to support my claim, I offer an interpretation of sunyata as a lived experience in which knowing and being are unified. One method used to experience the identity of knowing and being is the method of negatio negationis. I argue that technology embodies this method, and that thus has a built-in process that allows users of technology to achieve a samadhi experience in the use of tools and machines. Hubert Dreyfus’ theory of embodiment is offered in support of this claim. If it is possible to establish an intimate relation with certain technologies, then the nature of technology cannot be reduced to its most obvious dehumanizing and destructive effects.     

Computer-supported learning tools: A bi-circular bi-directional framework

The paper proposes a psychological framework aimed at integrating software developers’ and teachers’ opinions about computer-supported learning tools (CSLT) with learners’ beliefs. The framework highlights how a mental model of CSLT modulates the needs and goals that motivate the use of technical instructional devices, the ways in which they are used, and the expected outcomes. The framework goes beyond a simplistic conception of the relationships between the CSLT and their effects. It stresses the importance of subjective representations and describes the network of causal relationships connecting the features of the CSLT, the user's beliefs, and the user's behaviours. The framework shows that the implementation of the CSLT is influenced by the user's mental model and that representations can change as a consequence of the use of the CSLT. The framework has implications for applied issues, suggesting a possible way to respond to a request to intervene and support an institution's attempt to introduce CSLT in training activities. In fact, the framework invites educators to clarify their tacit assumptions about CSLT and to consider trainees’ opinions; it encourages tool developers, teachers, and students to exchange their opinions in order to reach a shared conception of why and how to employ the CSLT.     

Ideology in a Desert Landscape*

On one influential view, metaphysical fundamentality can be understood in terms of joint‐carving. Ted Sider has recently argued that (i) some first order quantifier is joint‐carving, and (ii) modal notions are not joint‐carving. After vindicating the theoretical indispensability of quantification against recent criticism, I will defend a logical result due to Arnold Koslow which implies that (i) and (ii) are incompatible. I will therefore consider an alternative understanding of Sider's metaphysics to the effect that (i) some first order quantifier is joint‐carving, and (iii) intensional notions are not joint‐carving. Another result due to Koslow entails that (i) and (iii) are also incompatible. I will argue that this second result is inconclusive. Nevertheless, (iii) is incompatible with another tenet of Sider's metaphysics, namely that (iv) ‘being joint‐carving’ is itself joint‐carving. In order to resolve the inconsistency, I will tentatively argue that condition (iv) should be renounced.     

Effects of stressful life events on human brain structure: a longitudinal voxel-based morphometry study

Although stressful life events (SLEs) have been associated with an increased risk of illness and mental disorder, their impact on brain anatomy remains poorly understood. Using a longitudinal design, we tested the hypothesis that SLEs are significantly associated with changes in gray matter volume (GMV) in brain regions previously implicated in post-traumatic stress disorder (PTSD) in a group of clinically healthy adults. Magnetic resonance imaging was used to acquire an anatomical scan from 26 subjects (13 males and 13 females; mean age ± SD: 25.2 ± 4.3 years), with no psychiatric diagnosis, at two time points with a 3-month interval. Voxel-based morphometry was used to examine an association between SLEs and gray matter changes during this period. The number of SLEs was associated with a decrease in GMV in the anterior cingulate, hippocampus, and parahippocampal gyrus (p < 0.001). In contrast, there were no areas where the number of SLEs was associated with an increase in GMV. These results provide evidence that, in adults with no formal psychiatric diagnosis, SLEs are associated with GMV decreases in a subset of regions implicated in PTSD, and that these alterations can be observed within a period as short as 3 months.     

Models for Counterparts

Lewis proposed to test the validity of a modal thesis by checking whether its possible-world translation is a theorem of counterpart theory. However, that criterion fails to validate many standard modal laws, thus raising doubts about the logical adequacy of the Lewisian framework. The present paper considers systems of counterpart theory of increasing strength and shows how each can be motivated by exhibiting a suitable intended model. In particular, perfect counterpart theory validates all the desired modal laws and therefore provides a way out of the logical objection. Finally, a weakening of perfect counterpart theory is put forward as a response to some metaphysical objections.