Reconciliation and variation in post-conflict stress in Japanese macaques (Macaca fuscata fuscata): testing the integrated hypothesis

Reconciliation in primates, a post-conflict affiliative interaction between former opponents, appears to have two functions: (1) to repair relationship damaged by aggression such that animals who share more valuable relationships are more likely to reconcile, and (2) to reduce the post-conflict uncertainty and stress of former combatants. The 'integrated hypothesis' of reconciliation links these functions by arguing that the disturbance of a valuable relationship by aggression should result in particularly high levels of stress, which in turn should facilitate efforts to reconcile and thus gain relief from post-conflict stress. A key prediction of the integrated hypothesis is that victims of aggression suffer more stress following conflicts with individuals with whom they share a valuable relationship. In this article, we test the integrated hypothesis by observing the post-conflict behaviour of victims among a free-ranging provisioned troop of Japanese macaques (Macaca fuscata fuscata) living in Shiga Heights, Nagano, Japan. In this troop, monkeys reconciled roughly one in seven conflicts. The only factor that we could significantly relate to the occurrence of reconciliation was kinship; kin reconciled more frequently than non-kin did. Receiving aggression increased and reconciliation reduced the probability of being re-attacked after aggressive interactions, supporting the hypothesis that reconciliation repairs relationships. Victims' self-directed behaviour (SDB) – a behavioural index of stress comprising increases in scratching, self-grooming, and body-shaking – was elevated following aggression but decreased rapidly following reconciliation, supporting the idea that reconciliation functions to reduce post-conflict stress. Post-conflict SDB varied as follows: (1) victims showed a higher level of stress following aggression with kin than with non-kin, and (2) juvenile victims were less distressed than adults. The level of post-conflict SDB performed by juveniles following conflicts with kin was indistinguishable from that performed by adults but was greatly reduced following attacks from non-kin. These results indicate that post-conflict SDB keenly reflects the value of relationships between opponents, and that the post-conflict behaviour of free-ranging Japanese macaques fits the predictions of the integrated hypothesis. Accepted after revision: 11 September 2001 Electronic Publication     

Influences of grasp selection in typically developing children

When reaching towards an object, adults favour grasps which, following the intended action, end in a comfortable position even when this requires them to start in an uncomfortable position (the end-state-comfort effect). However, this strategy is not consistently used by children who instead seem to favour a minimal pre-contact rotation of the hand, even when this results in an uncomfortable end position. In terms of multiple movements, the strategies used for grip selection are unclear; adults may still grasp for end-state-comfort given their propensity to plan to the end of a movement; however, children who are less able to concatenate movement may tend to start-state-comfort movements. The current study considered grip selection in children ranging from 4 to 12 years and in a group of adults. Participants were asked to rotate a disc so that an arrow pointed towards a specific target(s), the number of sequences in a movement was increased from one to three. Planning for end-state-comfort was seen in all participants and a clear developmental trajectory was identified whereby the relative comfort of an end position could be directly predicted by age in months. Adults and 10–12-year-olds favoured an end-state-comfort strategy whereas the younger children gave equal weighting to end-state-comfort, start-state-comfort and no initial rotation strategies. All groups were able to end a movement comfortably when it was composed of three steps; however, the proportion of movements relying on an end-state-comfort strategy decreased as sequence length increase whereas the proportion of start-state-comfort and no initial rotation strategies increased. The current data support the concept that a mechanism for planning grasps may be based on motor experience.     

Aggressive behavior in a confined troop of Japanese macaques: Effects of density,season, and gender

A troop of Japanese macaques (Macaca fuscata) confined in a 2-acre outdoor corral increased from 107 to 192 individuals during the 5-year tenure of a project that assessed the effects of density, season, and gender on the expression of adult aggressive behavior. Two statistical subgroups of 16 males and 28 females that were adults at the start of the project and that survived until its completion were studied intensively. There were significant season and sex differences in all groups: males were much more aggressive than females, and males were most aggressive during the fall and and winter mating season; females were most aggressive during the spring and summer birth season. Only the 16 adult males increased their frequency of aggressive behavior as the population density increased. This increase was due to the greater number of potential antagonists available each year.     

Effects of Change in Social Content of Video Rewards on Response Patterns of Bonnet Macaques

Three individually housed bonnet macaques, with long-term experience in performing a joystick task with a reward choice of either viewing color video of a single bonnet group or obtaining a banana-flavored food treat, were presented with images of a new group when they chose to view social video. The change produced absolute increases in responding for social video and enhanced preference for viewing social video relative to obtaining the food treat, supporting the view that the monkeys were strongly attending to the social content of the videos.     

Patterns of agonistic interactions in three species of macaque (Macaca mulatta,M fascicularis,M tonkeana)

Patterns of aggression and response to aggression were studied in three groups of macaques living in semiliberty, each group representing a different species: Macaca mulatta, M fascicularis, and M tonkeana. In Macaca mulatta, intensity of aggression is high (biting is frequent) and symmetry in aggression is low: the aggressee most often flees or submits. In Macaca tonkeana, in contrast, biting is exceptional, aggression is very often bidirectional, and appeasement behaviors are frequently observed. Intermediate patterns are found in Macaca fascicularis with, in addition, especially frequent mild forms of submission. It is argued that relationships exist between intensity of aggression, symmetry in aggression, and development of behaviors controlling aggresssion. Whether balances between these variables are species-specific is discussed.     

Object individuation using property/kind information in rhesus macaques (Macaca mulatta)

Around 1 year of age, infants develop the ability to individuate objects in the absence of spatiotemporal information. Some have proposed that this capacity relies on the emergence of language and, in particular, that comprehending an object's label is required to individuate it as a particular kind. One approach to testing this hypothesis is to conduct experiments on pre-linguistic human infants. A second is to test non-linguistic animals. We followed the second approach, exploring whether semi-free-ranging rhesus macaques can individuate objects using property/kind information. To make the results most directly comparable, we adapted a reaching paradigm used to examine property/kind individuation in infants. Results from three experiments demonstrate that, like 12-month-old infants, adult rhesus macaques can use both spatiotemporal and property/kind information to individuate food objects. In a fourth experiment designed to examine which properties are used to individuate food objects, results revealed that rhesus use color, but not shape. These results, together with experiments involving different procedures, provide support for the conclusion that in the absence of linguistic abilities, some non-human primates spontaneously use property/kind information to individuate objects.     

Segmentation and Selection of Appropriate Chinese Characters in Writing Place Names in Japanese

This paper explores the relation between an unknown place name written in hiragana (a Japanese syllabary) and its corresponding written representation in kanji (Chinese characters). We propose three principles as those operating in the selection of the appropriate Chinese characters in writing unknown place names. The three principles are concerned with the combination of on and kun readings (zyuubako-yomi), the number of segmentations, and the bimoraicity characteristics of kanji chosen. We performed two experiments to test the principles; the results supported our hypotheses. These results have some implications for the structure of the Japanese mental lexicon, for the processing load in the use of Chinese characters, and for Japanese prosody and morphology.     

Conformism in the food processing techniques of white-faced capuchin monkeys (Cebus capucinus)

Researchers of “culture” have long been interested in the role of social learning in establishing patterns of behavioral variation in wild animals, but very few studies examine this issue using a developmental approach. This 7-year study examines the acquisition of techniques used to process Luehea candida fruits in a wild population of white-faced capuchin monkeys, Cebus capucinus, residing in and near Lomas Barbudal Biological Reserve, Costa Rica. The two techniques for extracting seeds (pounding or scrubbing) were approximately equal in efficiency, and subjects experimented with both techniques before settling on one technique—typically the one they most frequently observed. In a sample of 106 subjects that had already settled on a preferred technique, the females adopted the maternal technique significantly more often than expected by chance, but the males did not. Using a longitudinal approach, I examined the acquisition of Luehea processing techniques during the first 5 years of life. Regression analysis revealed that the technique most frequently observed (measured as proportion of Luehea processing bouts observed that used pounding as opposed to scrubbing) significantly predicted the technique adopted by female observers, particularly in the second year of life; the amount of impact of the observed technique on the practiced technique was somewhat less significant for male observers. These results held true for (a) observations of maternal technique only, (b) observations of technique used by all individuals other than the mother, and (c) observations of maternal and non-maternal techniques combined. Electronic supplementary material  The online version of this article (doi:) contains supplementary material, which is available to authorized users.     

Is monkey maternal abuse of offspring aggressive behavior?

This study was intended to probe the aggressive nature of monkey infant abuse by comparing the morphology of abusive behavior patterns with that of patterns allocated to both aggression and other categories of behavioral repertoires of macaques. This morphological analysis indicated that most abusive patterns should not be classified in the aggression category as they, at the motor end, differ greatly from macaque aggressive acts. In contrast, they perfectly resemble behaviors that monkeys usually display while manipulating inanimate objects. The implications of this finding for the pathogenic study of monkey infant abuse are discussed.     

习惯空间术语对空间认知的影响再探

考察习惯的空间术语对空间认知的影响。实验1考察在有空间语言线索提示下南、北方被试空间认知的差异。结果表明,当给予空间语言线索提示时,南、北方被试都更多地以所提示的空间参考框架定向。但语言线索对南、北方被试影响不同。实验2考察非定向性的习惯空间术语对空间认知的影响。结果表明,“南下北上”的术语影响被试对空间的认知。     

Conditioning of appetitive and consummatory sexual behavior in male Japanese quail.

Two different types of stimulus objects, a live female quail artificially adorned with bright orange feathers and an inanimate toy dog, served as conditioned stimuli. For subjects in experimental groups, the conditioned stimuli were presented shortly before access to a sexually receptive normal female quail. For subjects in control groups, exposure to the conditioned stimuli was unpaired with copulatory opportunity. Subjects in the experimental but not in the control groups quickly came to approach the location of the conditioned stimulus objects. When an adorned female quail served as the conditioned stimulus, the conditioned approach behavior was controlled by a combination of the presence of the orange adornments and the visual cues of the head and neck of the female bird, and the approach behavior persisted as the adorned female moved to new locations. When the toy dog served as the conditioned stimulus, the conditioned approach behavior was limited to the spatial cues that surrounded the toy dog during conditioning trials. Although both types of stimulus objects evoked conditioned approach behavior, only the adorned female stimulus supported copulatory behavior. This last finding indicates that copulatory behavior can become redirected toward novel stimuli as a result of conditioning, but only under special circumstances. The results are consistent with the suggestion that appetitive components of reproductive behavior are more susceptible to conditioning than consummatory components. Possible reasons for this are discussed, together with implications of the results for the contribution of conditioning processes to sexual selection.     

传统习惯的手段性质疑

社会舆论、传统习惯、内心信念一直是伦理学界公认的道德评价手段或方式。但是,通过深入分析可以发现,传统习惯并不具有作为道德评价手段或方式应有的可操作性、主体性、功能性等特点,也不能动态地实现道德评价及其作用。因此,传统习惯即不可能也无必要作为一种道德评价的手段或方式。     

ARE PERSONS WITH NERVOUS HABITS NERVOUS? A PRELIMINARY EXAMINATION OF HABIT FUNCTION IN A NONREFERRED POPULATION

In this study, 44 individuals were exposed to three conditions (anxiety, bored, and neutral) while being covertly videotaped. The videotapes were then scored for the occurrence of five classes of habits including hair, face, and object manipulation; object mouthing; and repetitive movement of the limbs. Results showed that hair and face manipulation increased during the anxiety condition, whereas object manipulation increased in the bored condition. The implications of this research are discussed.     

Health-related behavioural change—a test of a new model

Abstract

Numerous studies have demonstrated that planned health education and health promotion interventions are not particularly successful in bringing about behavioural change. It is suggested that the reasons for this are the fallacious theoretical assumptions underlying many intervention strategies and the failure to place sufficient emphasis on the context in which health-related behaviours occur. Studies of self-initiated behavioural change suggest that the antecedents of change are often events or processes which bring a previously routinised and unremarked behaviour into new focus.

This paper describes a preliminary test of a new model of behavioural change in which a group of lay people were recruited to act as paid interviewers on a food survey in their own area. The survey was particularly concerned with the consumption of high fibre foods. he and post-test measures of the interviewers' own food habits as compared with those of a control group indicated modest support for the proposed model. Implications of this study for health education and promotion are discussed.     

Educating Hopes

Acknowledging the negative impact poverty and violence can have on the educational process, I explore ways in which a pragmatic interpretation of hope can guide us in formulating preventive and responsive measures that are not intrusive on the normal curriculum. I draw on key pragmatic ideas presented by John Dewey to emphasize the habits central to a pragmatic theory of hope. Equally important is the notion of a community of hope that fosters the development of hope’s habits. A hopeful pedagogy enables us to fund students with habits that help them resist the disconnection and despair that can come from living and learning amid impoverished or violent conditions. I argue that teachers can emphasize hope’s relevance to achieving the goals of the curriculum; they can also promote students’ self-knowledge through personal narratives that identify past accomplishments and explore possible means to desired goods. To begin ameliorating the tenacious conditions that foster poverty and violence, we need to look beyond the confines of the classroom and school to the resources and coordinated efforts made possible by the larger community. A pragmatic interpretation thus focuses our attention on individual and communal habits that help us secure desired goods. My discussion demonstrates at least some of the ways in which hope is a valuable resource for actively responding to circumstances that impede the educational process.     

Aquinas on Quality

For Kant, Aristotle's categories are arbitrary but brilliant and they do not ultimately correspond to extramental reality. For Aquinas, however, they are rational divisions of extramental being. In this perennial and ongoing dispute, the various positions seem to dissolve upon delving into the particulars of any one category. If, however, the categories are divisions of extramental being, it should be possible to offer plausible accounts of particular categories. I offer Aquinas's unstudied derivation of quality as a test case to see how one could hold, and how Aquinas did hold, to a realism about Aristotle's categories at a highly specific level. Although Aristotle divides quality into four species and some further subspecies, unlike Aquinas, he offers no reasons for these divisions. For Aquinas each accident is a particular mode of existing, that is, it is a particular way that an accident exists in a substance. In the case of quality, this mode of existing follows substantial form and its real extramental causes or effects further divide it into four species. Aquinas's account is both compelling and original, inspired by Aristotle but also un-Aristotelian. The paper concludes by comparing Aquinas's account of quality with the best extant account of Aristotle's quality, namely, Paul Studtmann's.     

Why did I eat that? Perspectives on food decision making and dietary restraint

Consumers trying to watch or restrict what they eat face a battle each day as they attempt to navigate the food-rich environments in which they live. Due to the complexity of food decision making, consumers are susceptible to a wide range of social, cognitive, affective, and environmental forces determined to interrupt their intentions to restrict their dietary intake. In this article, we integrate literature from diverse theoretical perspectives into a conceptual framework designed to offer a better understanding of the antecedents, interruptions, and consequences of dietary restraint. We outline a path for researchers to investigate how restraint behaviors in the eating domain influence a wide variety of consumer psychological phenomena. It is our hope that a collective examination of this literature provides a lens that directs future research on food decision making and dietary restraint and empowers consumers to invest their cognitive and behavioral resources towards healthy eating behaviors.     

Study strategies and beliefs about learning as a function of academic achievement and achievement goals

Prior research by Hartwig and Dunlosky [(2012). Study strategies of college students: Are self-testing and scheduling related to achievement? Psychonomic Bulletin &; Review, 19(1), 126–134] has demonstrated that beliefs about learning and study strategies endorsed by students are related to academic achievement: higher performing students tend to choose more effective study strategies and are more aware of the benefits of self-testing. We examined whether students’ achievement goals, independent of academic achievement, predicted beliefs about learning and endorsement of study strategies. We administered Hartwig and Dunlosky’s survey, along with the Achievement Goals Questionnaire [Elliot, A. J., &; McGregor, H. A. (2001). A 2 × 2 achievement goal framework. Journal of Personality &; Social Psychology, 80, 501–519] to a large undergraduate biology course. Similar to results by Hartwig and Dunlosky, we found that high-performing students (relative to low-performing students) were more likely to endorse self-testing, less likely to cram, and more likely to plan a study schedule ahead of time. Independent of achievement, however, achievement goals were stronger predictors of certain study behaviours. In particular, avoidance goals (e.g., fear of failure) coincided with increased use of cramming and the tendency to be driven by impending deadlines. Results suggest that individual differences in student achievement, as well as the underlying reasons for achievement, are important predictors of students’ approaches to studying.