An animal model for agoraphobia using a safety-signal analysis

Avoidance-extinction responding in rats is reviewed as a model for phobias and their treatment by exposure (flooding). A modified animal procedure involving the addition of Pavlovian safety signals is presented in line with Rachman's safety-signal perspective of agoraphobia. Uses of the proposed animal model are presented.     

The preparedness theory of phobias and human safety-signal conditioning

Seligman's preparedness theory of phobias implies that fear-relevant stimuli are contraprepared for safety-signal conditioning. This means that it should be very difficult to establish a fear-relevant stimulus as a safety-signal in nonphobic subjects. This hypothesis was tested in an electrodermal conditioning experiment with a picture of a snake serving as the fear-relevant CS and a picture of a flower serving as the fear-irrelevant CS. College students received discrimination training designed to establish the snake and the flower as safety-signals by nonreinforcing each in compound with a fear-eliciting CS. Although both the snake and the flower became conditioned safety-signals, neither stimulus showed greater safety-signal properties than the other. The results are inconsistent with predictions from preparedness theory.     

Gaining perspective on spatial perspective taking

Spatial perspective taking is a term that encompasses a class of phenomena that assess the extent to which a perceiver can access spatial information relative to a viewpoint different from the perceiver’s egocentric viewpoint (e.g. something on my right is on the left of someone facing me). We investigated whether spatial perspective taking that involves judging how objects are oriented around an agent is susceptible to alterations in social motivations. In all experiments, participants saw a picture of two objects and asked to judge the relationship between the objects when there was, or was not, an agent between them. Results from Experiment 1 showed that participants spontaneously described the objects from the agent’s perspective when he was present. Experiments 2 and 3 explored whether this effect was altered by prior participant exposure to manipulations of social inclusion or social exclusion. Results from these two studies demonstrated that socially included participants and socially excluded participants did not differ in their tendencies to adopt the spatial perspective of another. These results are discussed in the context of the results of other studies showing that perspective taking can be influenced by social motivations.     

Predicates in perspective

A familiar strategy of argument to the effect that natural-language predicates are semantically context dependent rests on constructing what I term Travis cases: different contexts for the use of a predicate are imagined in which its semantic (typically, truth-conditional) properties are claimed to differ. I propose an account of the semantic properties of predicates that give rise to Travis cases; I then argue that the account underwrites a genuine alternative to the standard explanations of Travis cases to be found in the literature; I close with a brief sketch of the connections, required by a fuller development of my account, among the semantic notion of a predicate??s content, the metaphysical notion of a property??s instantiation, and the cognitive notion of a language user??s perspective in using a predicate.     

Epidemics in perspective

Irrational responses to patient with AIDS, particularly in regards to the transmissibility of HIV (human immunodeficiency virus) are examined from an historical and psychosocial perspective. Although these responses are similar to those reported from past epidemics such as plague and leprosy, they are in direct conflict with our current level of understanding regarding the transmission of this virus. Their genesis may relate to the human penchant to react to illness metaphorically. In order to allay effectively public concern about the transmissibility of AIDS, it is essential to recognize the metaphor associated with venereal disease in general and AIDS in particular.     

Switching memory perspective

The perspective in which memories were spontaneously recalled, field (original perspective) or observer (see oneself in the memory), was examined for both recent and remote memories. Recent memories were dominated by field perspective whilst remote memories were dominated by observer perspective. Further, field memories contained reliably more episodic detail than observer memories. After a 1-week interval, the same memories were recalled again but with a switched memory perspective. Switching from an observer to a field perspective did not reliably increase the amount of episodic details in a memory. Switching from field to observer perspective did, however, reliably reduce the number of episodic details. These findings suggest that memories may be represented in long-term memory with a fixed perspective, either field or observer, which can be temporarily altered sometimes changing the nature of a memory, i.e. how much detail remains accessible.     

Mary's new perspective

Book Information The Semantics of Media. By Jeff Ross. Dordrecht, Kluwer. 1997. Pp. vii + 137. £56.75.     

Sosa in perspective

Ernest Sosa draws a distinction between animal knowledge and reflective knowledge, and this distinction forms the centerpiece of his new book, A Virtue Epistemology. This paper argues that the distinction cannot do the work which Sosa assigns to it.

The editorial perspective

This study utilizes in‐depth interviews of female injecting drug users (IDUs) supplemented by analyses of a large national data set to explore the association between the strength of the social bond and participation in a health‐related form of deviance: AIDS risk behaviors. The theoretical framework extends social control theory by examining the effects of further weakening of the social bond in an already deviant population. Risk behaviors are operationalized as a second‐level of deviance among individuals already participating in initial‐level deviant behavior (drug use). Prior research on how aspects of the social bond deter the individual from further deviance during adulthood has focused on males. Careers and marriage have been examined as elements of social control. The subjects of this study are female, however. For women, careers and marriage are often less salient, and relationships with children may be a more relevant measure of the social bond.

In‐depth interviews with eighteen female IDUs and two former IDUs are presented to explore the degree to which relationships with children deter female IDUs from participating in risky behaviors. Analysis of the interview data suggests that the presence, weakening, or rupturing of the bond to children is related to higher levels of second‐level deviance in the form of AIDS‐risk behaviors. However, the interviews also suggest that there are qualitative differences in the deterrence effects of weakened bonds to children, depending on the circumstances as well as the level of ongoing interaction between mother and child. Analyses of the data from the National AIDS Demonstration Research (NADR) Project are then presented, providing additional support to the conclusion that loss of relationships with children is related to higher levels of risk.     

Experimental manipulations of perspective taking and perspective switching in expressive writing

Previous studies suggest that those who naturally vary their pronoun use over the course of expressive writing subsequently report the greatest improvements in physical and mental health. To explore possible perspective taking or perspective switching effects, two studies manipulated writing perspectives about emotional events from either a first-person, second-person, or third-person perspective. In Study 1, 55 students were randomly assigned to one of the three writing perspectives and were asked to write from the same perspective for three 5-minute writing sessions. In Study 2, 129 students wrote for three 5-minute sessions, one from each perspective in a counterbalanced order. The results showed that writing from a first-person perspective conferred more perceived benefits and was associated with using more cognitive mechanism words, whether engaged in perspective taking or perspective switching.     

Experimental manipulations of perspective taking and perspective switching in expressive writing

Previous studies suggest that those who naturally vary their pronoun use over the course of expressive writing subsequently report the greatest improvements in physical and mental health. To explore possible perspective taking or perspective switching effects, two studies manipulated writing perspectives about emotional events from either a first-person, second-person, or third-person perspective. In Study 1, 55 students were randomly assigned to one of the three writing perspectives and were asked to write from the same perspective for three 5-minute writing sessions. In Study 2, 129 students wrote for three 5-minute sessions, one from each perspective in a counterbalanced order. The results showed that writing from a first-person perspective conferred more perceived benefits and was associated with using more cognitive mechanism words, whether engaged in perspective taking or perspective switching.     

Fallacies in pragma-dialectical perspective

In the pragma-dialectical approach, fallacies are considered incorrect moves in a discussion for which the goal is successful resolution of a dispute. Ten rules are given for effective conduct at the various stages of such a critical discussion (confrontation, opening, argumentation, concluding). Fallacies are discussed as violations of these rules, taking into account all speech acts which are traditionally recognized as fallacies. Special attention is paid to the role played by implicitness in fallacies in everyday language use. It is stressed that identifying and acknowledging fallacies in ordinary discussions always has a conditional character. Differences between the pragma-dialectical perspective, the Standard Treatment, and the formal logic approach to fallacy analysis are discussed.