Emotions Evoked by Viewing Pictures may Affect Temporal Aspects of Visual Processing

We examined how impression (such as safety, pleasantness, and impact), as well as emotional arousal and valence, evoked by viewing a picture affects temporal resolution of visual processing and perceived picture duration. In the first experiment as an index of temporal resolution of visual processing, we measured the noticeable duration of a monochrome picture after presenting a color picture. In the second experiment, we measured the duration of the picture presentation, which was equivalent to the duration of the presentation of a gray rectangle that should not evoke specifically safe or pleasant impressions. We found that the minimum duration in which an observer could notice a monochrome image in viewing a dangerous picture was shorter than that in viewing safe pictures. We also found that observers overestimated the duration of the picture presentation in viewing dangerous pictures. However, there was no significant correlation between the results of the two experiments. These results suggest that the basis for improvement of the temporal resolution in visual processing differs from that for the elongation of the perceived duration.     

Quantitative evaluation of infant behaviour and mother–infant interaction: An overview of a japanese interdisciplinary programme of research

This paper provides an overview of an interdisciplinary programme of research started more than 20 years ago at the University of Tokyo. A major aim of this programme was (and still is) to develop methods and related forms of quantitative analysis that provide rigorous evaluations of infant behaviour from a particular theoretical perspective. In one part of the programme telethermography is used to measure emotional changes in young infants. Contrary to the accepted view in attachment theory, infants as young as 2–3 months showed evidence of stress following separation from the mother (as indexed by a drop in the skin temperature of the infant's forehead). In another part, we established the presence of interpersonal synchrony between arm movements of the newborn and the speech of the mother and other adults, using computer assisted pattern recognition techniques. On the basis of this finding, we have proposed a simulation model of mother-infant interaction from the perspective of system information theory. In general, our programme of research provides a theoretically driven set of techniques and analytical approaches that may provide deeper insights into early development and parenting.     

Evidence of means–end behavior in Asian elephants (<Emphasis Type="Italic">Elephas maximus</Emphasis>)

The present study explores to what extent Asian elephants show “means–end” behavior. We used captive Asian elephants (N = 2) to conduct four variations of the Piagetian “support” problem, which involves a goal object that is out of reach, but rests on a support within reach. In the first condition, elephants were simultaneously presented with two identical trays serving as the “support”, with the bait on one tray and the other tray left empty. In the next two conditions, the bait was placed on one tray, while additional bait was placed beside the other tray. In the last condition, both trays contained bait, but one of the trays had a small gap which prevented the elephants from reaching the reward. Subjects were required to choose and pull either tray with their trunk and to obtain the bait (i.e. goal). Results showed that one elephant performed all of the support problems significantly above chance after several sessions, suggesting that the elephant was capable of understanding that pulling the tray was the “means” for achieving the “end” of obtaining the bait. This study showed that elephants show means–end behavior when subjected to a Piagetian “support” task, and indicates that such goal-directed behavior occurs in species other than primates.     

Relative quantity judgment by Asian elephants (Elephas maximus)

This study investigated whether Asian elephants can make relative quantity judgment (RQJ), a dichotomous judgment of unequal quantities ordered in magnitude. In Experiment 1, elephants were simultaneously shown two baskets with differing quantities of bait (up to 6 items). In Experiment 2, elephants were sequentially presented with baits, which could not be seen by elephants in their total quantities. The task of elephants was to choose the larger quantity in both experiments. Results showed that the elephants chose the larger quantity with significantly greater frequency. Interestingly, the elephants did not exhibit disparity or magnitude effects, in which performance declines with a smaller difference between quantities in a two-choice task, or the total quantity increases, respectively. These findings appear to be inconsistent with the previous reports of RQJ in other animals, suggesting that elephants may be using a different mechanism to compare and represent quantities than previously suggested for other species.     

The Impact of Crime on Social Ties and Civic Participation

The present study examined associations of neighbourhood crime with residents' social ties and civic participation using multilevel models. We hypothesized that crime is indirectly associated with residents' low civic participation by negatively relating to their acquaintanceship ties because of fear of neighbours. By contrast, we predicted that crime is indirectly related to frequent civic participation by positively associating with more intimate friendship ties as a response to combat external threats. Additionally, we hypothesized that high crime rates in the neighbourhood increases the importance of generalized trust towards others. Therefore, we examined the interaction effects of neighbourhood crime and trust on social ties and participation. The study is based on a postal questionnaire mailed to residents aged between 20 and 69 years, residing in Musashino City and Kiyose City, in Tokyo. Rates of larceny reported by the Tokyo Metropolitan Police Department were used as indices of neighbourhood crime. As hypothesized, our results showed that crime is positively associated with friendship ties and is negatively related to acquaintanceship ties. Through these opposing relationships, crime showed both positive and negative associations with civic participation. Moreover, we found that generalized trust buffered the adverse relationships between crime, broader social ties and participation. Copyright © 2015 John Wiley & Sons, Ltd.     

Contextual cueing facilitation arises early in the time course of visual search: An investigation with the `speed-accuracy tradeoff task

Attention, Perception, & Psychophysics - Visual search is expedited in a spatial context encountered repeatedly. A much-debated question is how early the facilitation by contextual memory...     

Inter‐religious dialogue between the Vatican and Sudan

In the modern world, since the end of the Cold War, it seems that the significance of inter‐religious dialogue between Muslims and Christians is increasing. One of the most interesting cases is that of the Vatican and Sudan. There exists an impression that the inter‐religious dialogue between these two parties is going very well But to what extent is this true? This article attempts to find out the true picture of this dialogue. Although the Sudanese Islamists were initially not so keen on the dialogue, they later became more positive and enthusiastic. The Sudanese have developed a vision in international inter‐religious dialogue, while the Vatican seems to have employed a rather delicate policy towards Sudan.     

Concept identification with natural material.

Phonetic letters in Japanese (Hiragana, 23 in number) written by 6 adults (Ws) were presented one by one and the S was asked to guess by which W it was written. Immediately after the S made the guess, the code of correct W was given on each trial. The Ss were Japanese housewives, students etc., 53 in number. Rate of correct identification increased during 23 × 6 trials, but only from 0.3 to 0.4 on the average. The learning transferred to the remaining 23 letters of the same kind but not to letters of the other kind (Katakana). On each trial, the S verbally described cues upon which the guess was made. When the data were separately analysed according to Ws, it was found that letters of the W who was most difficult to identify were most ‘diffused’ in characterization by the Ss. The relevance of the present experiment to study of concept identification in general was also discussed.