Straightness as the main factor of the hErmann grid illusion

The generally accepted explanation of the Hermann grid illusion is Baumgartner's hypothesis that the illusory effect is generated by the response of retinal ganglion cells with concentric ON-OFF or OFF-ON receptive fields. To challenge this explanation, we have introduced some simple distortions to the grid lines which make the illusion disappear totally, while all preconditions of Baumgartner's hypothesis remain unchanged. To analyse the behaviour of the new versions of the grid, we carried out psychophysical experiments, in which we measured the distortion tolerance: the level of distortion at which the illusion disappears at a given type of distortion for a given subject. Statistical analysis has shown that the distortion tolerance is independent of grid-line width within a wide range, and of the type of distortion, except when one side of each line remains straight. We conclude that the main cause of the Hermann grid illusion is the straightness of the edges of the grid lines, and we propose a theory which explains why the illusory spots occur in the original Hermann grid and why they disappear in curved grids.     

Action rules: why the visual control of reaching and grasping is not always influenced by perceptual illusions

It is generally accepted that vision first evolved for the distal control of movement and that perception or 'representational' vision emerged much later. Vision-for-action operates in real time and uses egocentric frames of reference and the real metrics of the world. Vision-for-perception can operate over longer time scales and is much more scene-based in its computations. These differences in the timing and metrics of the two systems have been examined in experiments that have looked at the way in which each system deals with visual illusions. Although controversial, the consensus is that actions such as grasping and reaching are often unaffected by high-level pictorial illusions, which by definition affect percetion. However, recent experiments have shown that, for actions to escape the effects of such illusions, they must be highly practiced actions, preferably with the right hand, and must be directed in real time at visible targets. This latter finding suggests that some of the critical components of the encapsulated (bottom-up) systems that mediate the visual control of skilled reaching and grasping movements are lateralised to the left hemisphere.     

Designing Organizations: Does Expertise Matter?

From an organizational cognition standpoint, we approach organizational design as an ongoing creative sensemaking process. This study examined the role of expertise in the cognitive problem-solving patterns underlying design processes and the resulting organizational forms. The simulated problem elicited the mental models applied by naives, novices, and experts in designing an organization. The thinking-aloud protocol analysis revealed quantitative and qualitative expert/nonexpert differences in problem-solving strategies, the time spent on problem representation, and the justifications and difficulties expressed in the course of the design process. In addition, our results showed that naives created organizations consistent with mechanistic structures, while novices and experts created organizations consistent with organic structures. We discuss the implications of these findings for the understanding of the cognitive basis of organizational design and the development of effective training programs.     

The networked mind

The paper discusses the role of networks in cognition on two levels: on the level of the organization of ideas, and on the level of interpersonal communication. Any interesting system of ideas forms a network: ideas presented in a linear order (the order forced upon us by verbal expression) will necessarily convey a distorted picture of the underlying patterns of thought. Networks of ideas typically consist of a great number of nodes with just a few links, and a small number of hubs with very many links; that is, they are, to employ Albert-László Barabási’s term, “scale-free.” Barabási fits into a specific tradition: Hungarians had an early influence on the philosophy of networks, and on the philosophy of communication as developed at Marshall McLuhan’s Toronto Circle. In fact, this was the circle in which certain Hungarian and Austrian ideas on mediated collective thinking first came together—a telling testimony to the conditions of disturbed communication and idiosyncratic networking typical of East-Central Europe, past and present. The nodes-and-hubs pattern is characteristic, too, of social networks, in particular of scholarly and scientific networks. The paper analyses the role of “invisible colleges”—informal groups of scientific elites through whom the communication of information both within a field and across fields is channelled. By way of conclusion the notion of a new type of personality, the “network individual,” is discussed: the network individual is the person reintegrated, after centuries of relative isolation induced by the printing press, into the collective thinking of society—the individual whose mind is manifestly mediated, once again, by the minds of those forming his/her smaller or larger community.     

Classification of dog barks: a machine learning approach

In this study we analyzed the possible context-specific and individual-specific features of dog barks using a new machine-learning algorithm. A pool containing more than 6,000 barks, which were recorded in six different communicative situations was used as the sound sample. The algorithm's task was to learn which acoustic features of the barks, which were recorded in different contexts and from different individuals, could be distinguished from another. The program conducted this task by analyzing barks emitted in previously identified contexts by identified dogs. After the best feature set had been obtained (with which the highest identification rate was achieved), the efficiency of the algorithm was tested in a classification task in which unknown barks were analyzed. The recognition rates we found were highly above chance level: the algorithm could categorize the barks according to their recorded situation with an efficiency of 43% and with an efficiency of 52% of the barking individuals. These findings suggest that dog barks have context-specific and individual-specific acoustic features. In our opinion, this machine learning method may provide an efficient tool for analyzing acoustic data in various behavioral studies.     

Content and strategy in syllogistic reasoning.

Syllogistic reasoning has been investigated as a general deductive process (Johnson-Laird & Byrne, 1991; Revlis, 1975; Rips, 1994). However, several studies have demonstrated the role of cognitive strategies in this type of reasoning. These strategies focus on the method used by the participants (Ford, 1995; Gilhooly, Logie, Wetherick, & Wynn, 1993) and strategies related to different interpretations of the quantified premises (Roberts, Newstead, & Griggs, 2001). In this paper, we propose that content (as well as individual cognitive differences) is an important factor in inducing a certain strategy or method for syllogistic resolution. Specifically, we suggest that syllogisms with a causal conditional premise that can be extended by an agency premise induce the use of a conditional method. To demonstrate this, we carried out two experiments. Experiment 1 provided evidence that this type of syllogism leads participants to draw the predicted conditional conclusions, in contrast with control content syllogisms. In Experiment 2, we demonstrated that the drawing of conditional conclusions is based on a causal conditional to an agent representation of the syllogism premises. These results support the role of content as inducing a particular strategy for syllogistic resolution. The implications of these results are discussed.     

Krishna in heroes square: Devotees of Krishna and national identity in post-communist Hungary

In the present research note I deal with two different Krishna-admiring new religious communities in Hungary: the Hungarian Vaisnava Hindu Association and the students of Govinda Maharaja led by Attila Bakos. I focus on the way they intend to find their place and role in current Hungarian society. I concentrate on their relationship with national identity, as the situation of national identity is an important issue in post-communist Hungary. I demonstrate that the two religious communities aim to combine Indian spirituality and Hungarian national identity. The Hungarian Vaisnava Hindu Association attempts to create a cultural context for the original Indian teachings by keeping some of their religious ceremonies special: they use folkloric elements, like pieces or motives of folk costumes, folksongs, and traditional Hungarian musical instruments. The other community aims to re-interpret Hungary's official history and to prove that Hungarian cultural traditions and Indian spirituality are not alien to each other. I rely on various interviews with members and analysis of the communities' publications.     

Men dissociate sexual attraction from moral judgement more than women

Would you find an opposite‐sex individual physically less attractive if you knew that he/she was a bad person? Would you feel the same if you were a man or a woman? This study examined whether gender differences exist in the influence of moral judgements on heterosexual physical attraction. In a first Experiment, participants (N = 214) rated on attractiveness photographs of opposite‐sex persons. Each photograph was paired with a “good” and a “bad” (from a moral point of view) sentence to depict a quality or activity of the displayed person (i.e., she/he is a defender of human rights in an NGO vs. she/he belongs to a terrorist group). Compared with women, men were significantly less influenced by sentence valence in their attractiveness ratings. A second Experiment (N = 105) using photographs of very attractive people showed the same pattern of results. The data suggest that sexual attraction is relatively less permeable to moral factors in men, and that this sex difference is consistent with an evolutionary approach to human sexuality.     

Studying Children's Intrapersonal Emotion Regulation Strategies from the Process Model of Emotion Regulation

The authors relied on the Process Model of Emotion Regulation (PMER; J. J. Gross, 2007 Gross, J. J. (2007). Handbook of emotion regulation. New York, NY: Guilford Press. [Google Scholar]) to investigate children's abilities to regulate their emotions and to assess how distinct emotion regulation strategies are used by children of different ages. In Study 1, 180 parents of children aged between 3 and 8 years old reported about a situation in which their child had been able to change what she or he was feeling. In Study 2, 126 children 3–8 years old answered 2 questions about how they regulate their own emotions. Results from both studies showed age differences in children's reported emotion regulation abilities and the strategies they used. As expected, strategies such as situation selection, situation modification, and cognitive change were used more frequently by 5–6- and 7–8-year-olds, whereas attention deployment was mainly used by 3–4-year-olds. No age differences were found for response modulation. The present research contributes to the existing body of literature on emotion regulation by adding more information about the developmental patterns for each specific emotion regulation strategy.