Behaviors of Swiss-Webster and C57/BL/6N sin mice in a fear/defense test battery

When confronted by an approaching threat stimulus (experimenter or laboratory rat), Swiss-Webster mice show initial flight, followed by freezing and defensive vocalization and biting, the latter only when escape is blocked. These defense patterns resemble those of the wild rat, suggesting that mice of this strain do not show the reductions in flight and defensive threat/attack that are typical of laboratory rats. C57/BL/6N Sin strain mice showed fewer avoidances to an approaching predator, as well as reduced vocalization and defensive biting, a pattern more similar to that of laboratory rats. As with rats, female mice appeared to be more defensive to a predator. They showed greater reactivity to dorsal contact and more frequent defensive biting and jump attacks than males of the same strains. These patterns of defensive behaviors suggest that, although strain differences in defense are substantial, laboratory mice are suitable for, and may offer several advantages in, the study of the genetic, endocrine, and pharmacological basis of antipredator defense. © 1995 Wiley-Liss, Inc.     

Defensive behavior of laboratory and wild Rattus norvegicus

Analysis of the defensive behaviors of wild rats to an inescapable approaching threat stimulus (the experimenter) indicated a pattern of freezing to distant stimuli, giving way to vocalization, jumps, and jump-attacks at shorter defensive distances. Comparisons of the defensive reactions of wild-trapped and laboratory-bred wild rats to a variety of threatening stimuli, in escapable as well as inescapable situations, indicated that the two wild strains were similar and consistently more defensive than laboratory rats to both human and conspecific threat stimuli. These results thus suggest that the defensive behaviors of rats have been substantially reduced during the process of domestication, with relatively little of this reduction being attributable to housing in standard laboratory conditions.     

“Becoming”: A Method for Expanding Systemic Thinking and Deepening Empathic Accuracy

The method of “becoming,” as an approach to increasing empathic ability, promoting exploratory dialogue, and heightening consciousness, is described. The method is seen as applicable across theoretical orientations. It is a way to operationalize Martin Buber's concept of “inclusion,” which he defined as a “bold swinging” into the consciousness of another person. Details are given about the method's application to resistance, confusion, defensiveness, criticalness, and other barriers to awareness, relationship, and the co-creation of shared meanings. Case examples are provided to illustrate the use of the method in a variety of contexts.     

Neuropharmacological aspects of adaptive pain inhibition in murine “victims” of aggression

This review outlines recent research on a subset of physiological responses in murine “victims” or aggression. In a typical resident-intruder paradigm, the detailed study of intruders has revealed that exposure to conspecific attack (and related stimuli) is associated with two forms of analgesia which appear to be integral components of the murine defensive repertoire. In response to intense/enduring attack, intruder mice display a profound, long-lasting and opioid-mediated analgesia. This reaction is highly correlated with defensive immobility and may function to reduce involuntary cues to further attack. In contrast, the inhibition of pain reactivity in mice tested immediately upon the display of defeat is less intense, shorter-lasting, non-opioid in nature and may function to facilitate active defenses such as escape. As this form of pain inhibition is also evident in intruders exposed to the scent of an aggressive male conspecific, a possible anticipatory defensive function linked to mechanisms of anxiety has been proposed. This hypothesis is supported by 1) the prevention of defeat analgesia by a range of antianxiety drugs (benzodiazepines, 5-hydroxytryptamine_1A [5-HT_1A] receptor agonists, and 5-HT₃ receptor antagonists) and 2) the effects of social defeat on behavior in the elevated plusmaze model of anxiety. These findings are discussed in relation to coping mechanisms in murine “victims” of aggression. © 1995 Wiley-Liss, Inc.     

Behavioral changes over several successful agonistic encounters between male mice: Effects of type of “standard opponent”

This study assessed whether two types of non-aggressive “standard opponents” (“intact” and “anosmic” group-housed males) produced similar behavioral changes in isolated OF1 male mice given several experiences of victory. Experimental groups confronted either intact or anosmic opponents every two days until they had completed four encounters. The behavioral changes were recorded using a detailed ethologically inspired analysis. These changes were clearly different depending on the opponent type. When intact opponents were used, experimental subjects increased the time spent in digging, non-social exploration, explore from a distance, and attack over encounters, but showed decreased time spent in threat and a decreased latency to the first attack. In encounters with anosmic opponents, only declines in the latencies to threat and attack were noted. Moreover, the experimental groups differed in their behaviors over encounters. Those confronting intact opponents spent less time in social investigation, more time in explore from a distance and threat, and showed a shorter latencies to threat and attack than counterparts confronting anosmics. These results suggest that, although both types of “standard opponents” are similar in their non-aggressiveness, they elicit rather different behavioral responses in their adversaries. These findings provide additional support for the view that the type of opponent used in studies on intermale aggression is of paramount importance. Indeed, the use of different types of “standardized non-aggressive opponents” appears to be an important source of variability between studies. © 1994 Wiley-Liss, Inc.     

Factors influencing maternal attack on conspecific intruders by lactating female “TO” strain mice

Factors regulating maternal attack in “TO” strain mice were investigated to determine 1) optimal conditions for inducing this behaviour and 2) the likely utility of this activity. Lactating females were more likely to attack male intruders than female intruders. The mate's presence reduced maternal attack in this strain, or (putting it conversely) aggression was generated in the male's absence. Removal of the mothers from their litters for four to five hours also suppressed maternal attack. Investigation of the bite targets in the maternal attack suggested that it is a defensive, rather than an offensive, response.     

Further experiments on the social interactions of domestic “Norway” rats

Domestic rats, Rattus norvegicus, aged nearly one year, were studied in artificial colonies in large cages with attached nest boxes. As in previous experiments on younger domestic rats, but not those on wild rats, the colonies were peaceful. Questions concerning the “aggressive” or “agonistic” behavior of domestic rats are further discussed.     

“Watch out!”: Effects of instructed threat and avoidance on human free‐operant approach–avoidance behavior

Approach–avoidance paradigms create a competition between appetitive and aversive contingencies and are widely used in nonhuman research on anxiety. Here, we examined how instructions about threat and avoidance impact control by competing contingencies over human approach–avoidance behavior. Additionally, Experiment 1 examined the effects of threat magnitude (money loss amount) and avoidance cost (fixed ratio requirements), whereas Experiment 2 examined the effects of threat information (available, unavailable and inaccurate) on approach–avoidance. During the task, approach responding was modeled by reinforcing responding with money on a FR schedule. By performing an observing response, participants produced an escalating “threat meter”. Instructions stated that the threat meter levels displayed the current probability of losing money, when in fact loss only occurred when the level reached the maximum. Instructions also stated pressing an avoidance button lowered the threat level. Overall, instructions produced cycles of approach and avoidance responding with transitions from approach to avoidance when threat was high and transitions back to approach after avoidance reduced threat. Experiment 1 revealed increasing avoidance cost, but not threat magnitude, shifted approach–avoidance transitions to higher threat levels and increased anxiety ratings, but did not influence the frequency of approach–avoidance cycles. Experiment 2 revealed when threat level information was available or absent earnings were high, but earnings decreased when inaccurate threat information was incompatible with contingencies. Our findings build on prior nonhuman and human approach–avoidance research by highlighting how instructed threat and avoidance can impact human AA behavior and self‐reported anxiety.     

“Putin,You Suck”: Affective Sticking Points in the Czech Narrative on “Russian Hybrid Warfare”

Using the case of the Czech narrative on “Russian hybrid warfare” (RHW), this article contributes to the broader question of why narratives succeed. Building on Lacanian psychoanalysis, narrative scholarship, and affect/emotions research in International Relations, we suggest that narrative success is facilitated also by two interrelated factors: embedding in broader cultural contexts and the ability to incorporate and reproduce collectively circulating affects. We develop a methodological framework for encircling unobservable affects within discourse via “sticking points”—linguistic phenomena infused with affective investment. We outline three categories of sticking points—valued signifiers, fantasies, and biographical narratives. Utilizing the approach in our case study, we focus on a narrative based around the notion that Russia waged a “hybrid war” against “the West” and that this should be faced with quasi‐military measures, which was successful in changing the language of Czech national security. We show that this narrative incorporated a range of sticking points, which contributed to its relative success. It utilized valued signifiers, such as “the West,” “the Kremlin,” “agents,” and “occupation,” weaved them together into a fantasy of a threat to the nation's “Western” identity, and intertwined this with the biographical narratives of history as a lens for world politics and East/West geopolitics.     

On the dual nature of maternal aggression in rats

Presentation of a natural predator, a cat, was used to differentiate elements of maternal attack by female rats on a male intruder. Following exposure (without direct physical contact) of post-partum females to a cat or to a toy stuffed cat (control group), the females were replaced in their home cages and presented with a male intruder rat. Cat exposure reliably decreased lateral attack to the intruder, as well as locomotion, but had no effect on either jump attack or an upright defensive posture (boxing). Since predator exposure produces a somewhat durable increase in defense, along with inhibition of nondefensive behavior, these results suggest that maternal aggression represents a mixture of offensive, usually related to competition, and defensive (protective) behaviors. The results indicate that maternal aggression, as a parental care behavior, appears to be at least partially resistant to fear. © 1996 Wiley-Liss, Inc.     

The “Islamized Stranger”: On “Chronic” Versus “Contextual” Salience in the Measurement of Anti‐Muslim Prejudice

There is an ongoing debate whether anti‐Muslim prejudice in Western countries is more widespread than prejudice towards other ethno‐cultural groups or general ethnic prejudice. Previous research used different methodologies and yielded contradictory results. In this article, we combine a population‐based split‐sample survey experiment (N = 1,323), where half of the respondents judged items about Muslims and the other half statements about strangers, with an open question probing which groups respondents thought of when thinking about “strangers.” We furthermore extend previous research by not only focusing on general ethnic prejudice, but to differentiate between perceived trustworthiness, economic, cultural, and security threat. Our results strongly support the idea that the difference between the “chronic” and “contextual” salience of the target of prejudice should be taken into account.     

MAKING IT EXPLICIT AND CLEAR: FROM “STRONG” TO “HYPER‐” INFERENTIALISM IN BRANDOM AND PEIRCE

Abstract: This article explores how Robert Brandom's original “inferentialist” philosophical framework should be positioned with respect to the classical pragmatist tradition. It is argued that Charles Peirce's original attack (in “Questions Concerning Certain Faculties Claimed for Man” and other early papers) on the use of “intuition” in nineteenth‐century philosophy of mind is in fact a form of inferentialism, and thus an antecedent relatively unexplored by Brandom in his otherwise comprehensive and illuminating “tales of the mighty dead.” However, whereas Brandom stops short at a merely “strong” inferentialism, which admits some non‐inferential mental content (although it is parasitic on the inferential and can only be “inferentially articulated”), Peirce embraces a total, that is, “hyper‐,” inferentialism. Some consequences of this difference are explored, and Peirce's more thoroughgoing position is defended.     

Attack and defensive behaviors in the albino mouse

Attack by dominant male colony mice on intruders included chasing and lateral attack behaviors, while the corresponding intruder behaviors were flight, boxing, and checking. Both of these are similar to the attack and defensive behaviors of colony rats and intruders. However, mice did not show a significant constraint on bites to ventral areas, and the rat defensive behavior of lying on the back, which is effective because of this constraint, was rare; the corresponding “on-top” behavior of attackers was almost absent in mice. These findings strongly support the view that intraspecific attack and defensive behaviors, and target sites for bites, are interrelated factors facilitating effective but nonlethal agonistic interactions in muroid rodents.     

On “Naturalistic” Family Research

Much is made of the desirability of “naturalistic” research on the family. Indeed, experimental research is often rejected for not being “naturalistic.” The purpose of the present article is to draw out and to examine some of the assumptions underlying such a position. The assumptions behind criteria such as “real,”“relevant,” and “typical” for research topics and settings are held to be questionable, not least because they are inconsistent with a communicational, context-oriented approach to the family. Alternative assumptions more consistent with this approach are described.     

The “contact hypothesis”: Critical reflections and future directions

Research on intergroup contact has grown exponentially over the past decade. Such research has typically extolled the benefits of positive interaction between members of historically divided communities, particularly on outcomes related to prejudice reduction. Emerging work in the field, however, has qualified this optimistic picture by identifying three gaps in the existing literature. First, in everyday life, contact may be construed as a negative experience that increases rather than decreases responses such as prejudice, anxiety, and avoidance. Second, in real‐life settings, contact is often circumscribed by informal practices of (re)segregation that are easily overlooked if researchers rely primarily on examining structured contact and explicit processes using primarily laboratory and questionnaire methods. Third, positive contact may have “ironic” effects on the political attitudes and behaviors of the historically disadvantaged, undermining their recognition of social injustice and decreasing their willingness to engage in collective action to challenge the status quo. Although it is now a truism that intergroup contact can reduce intergroup prejudice, these developments emphasize the importance of maintaining a critical perspective on the “contact hypothesis” as a model for promoting social change in historically divided and unequal societies. They also lay the foundations for future developments in the field.     

New Testament Scholarship and the “Jesus Seminar”

This classroom exercise developed out of an effort to make the methodology and practical techniques of our field come alive for students of New Testament at a variety of undergraduate levels. Adapting the controversial “voting” technique of the Westar Institute's “Jesus Seminar,” students vote with colored beads on the authenticity of Jesus' sayings in Matthew's Beatitudes (Matt. 5:3–12). The point of the exercise is not to judge or dismiss Biblical text, but to work actively and thoughtfully with the critical tools and methods of New Testament scholarship, to ponder the implications of academic assessments of “authenticity” when it comes to Biblical text, and to stimulate discussion concerning how we, as professional scholars of the Bible, approach the Gospels.     

Genotype and environment in the social interactions of wild and domestic “Norway” rats

Wild rats, Rattus norvegicus, (a) trapped as adults or (b) of the second generation in captivity (lab-wild), and domestic rats of two strains, were studied for 28 days in artificial colonies in large cages with attached nest boxes. Controls were kept in mated pairs in small cages. Each colony consisted of six males and six females. The interactions of the males in six colonies of trapped rats were highly “stressful;” 61% died; and most of the survivors lost weight and had greatly enlarged adrenals. In each colony, however, there was a male (an alpha) that gained in weight and spent much time, during the dark hours, in the open on the floor of the cage; and in three colonies there were also other males (“betas”) that gained in weight. The adrenals of alphas and betas weighed about the same as those of the controls. In one of the 12 colonies of domestic rats one male behaved like a wild male; but in the other colonies the males gained in body weight and their adrenal weights resembled those of the controls. In three colonies of lab-wild rats 22% of the males died, but there was no evidence of males of different status. The findings confirm that the “agonistic” behavior of domestic rats is usually much attenuated in comparison with that of the wild type; a number of methodologic implications are discussed.     

“PURE” VERSUS “PRACTICAL” EPISTEMIC JUSTIFICATION

Abstract: In this article I distinguish a type of justification that is “epistemic” in pertaining to the grounds of one's belief, and “practical” in its connection to what act(s) one may undertake, based on that belief. Such justification, on the proposed account, depends mainly on the proportioning of “inner epistemic virtue” to the “outer risks” implied by one's act. The resulting conception strikes a balance between the unduly moralistic conception of William Clifford and contemporary naturalist virtue theories.