Decoding the language of the heart: Developing a physiology of inclusion

Constructs such as homeostasis and fight/flight have supported a scientific approach to physiology that has yielded a vast database of obvious heuristic value. Yet in spite of its value, these constructs have tended to create a mind-set that unwittingly supports what this article has labeled a “physiology of exclusion.” Reinforced by the philosophy of René Descartes, this perspective has led investigators to focus on isolated or separate animal organisms that are reflexively wired for self-preservation. It has created a mind-set in which both research investigators and the public at large tend to view the human body as either in a steady state of vigilance, maximally prepared for fight/flight, or in a state of quiescence. Assumptions of the solitary body, and solitary man wired to react for “self” preservation, has made it difficult to incorporate a growing body of evidence that indicates that social support and loving relationships are conducive to good health. It also has made it difficult for investigators to fully understand why human loneliness is a major cause of premature death. This article delineates these trends and offers a new construct, one that suggests that a “physiology of inclusion” be added to the prevailing view of a “physiology of exclusion.” Recent cardiovascular research is cited to help underscore the potential heuristic value of this new physiological construct.     

Appropriateness of anxiety and drive for affiliation

Anxiety was induced in first/only born and later born subjects by the threatened injection of a harmless drug. Perceived appropriateness of the induced anxiety was manipulated by the experimenter's suggestion that anxiety over an injection was either perfectly natural (appropriate condition) or to be found only in rather nervous and effeminate men (inappropriate condition). The results indicated that the anxiety induction was successful, but that the perceived appropriateness of the anxiety determined the tendency to affiliate. Subjects in the appropriate condition showed a significantly greater tendency to affiliate than did subjects in the inappropriate condition. Birth order was related to anxiety on one of two measures, but was not implicated in the determination of the affiliative tendency.     

Relative frequency of attribute relevance and response times in visual search

Two experiments, one using a between-Ss and one a within-Ss design, showed that response latencies to single attribute probe stimuli were longer when the target stimulus embodied two attributes (form and color) rather than a single attribute. The magnitude of this "mixed attribute effect" was influenced by the probability of attribute relevance, but the "probability effect" was mostly due to a "repetition effect," such that latencies on trials involving repetitions of the same attribute were shorter than when the relevant attribute was shifted. Implications of these results are drawn for the issues of holistic vs attributized representation of the target stimulus and serial vs parallel search of a set of attributes. Although no class of models can be ruled out on the basis of these experiments, constraints can be imposed on the versions of each that are compatible with the data presented.     

Social Constructivism in Science and Technology Studies

Berger and Luckmann’s concept of “social construction” has been widely adopted in many fields of the humanities and social sciences in the half-century since they wrote The Social Construction of Reality. One field in which constructivism was especially provocative was in Science and Technology Studies (STS), where it was expanded beyond the social domain to encompass the practices and contents of contemporary natural science. This essay discusses the relationship between social construction in STS and Berger and Luckmann’s original conception of it, and identifies problems that arose from indiscriminate uses of constructivism.     

Cue-type manipulation dissociates two types of task set inhibition: backward inhibition and competitor rule suppression

Backward inhibition (BI) reflects the suppression of a recently abandoned task set to allow for smooth transition to a new task even when the rules do not generate a response conflict. Competitor rule suppression (CRS) reflects the inhibition/suppression of irrelevant task rules when these rules generate a response conflict even if they have not recently been abandoned. We assessed whether BI and CRS are differentially affected by the difficulty in retrieving category-response mappings from memory. Retrieval demands were manipulated via the information provided by the task cues, which either indicated the relevant dimension (dimension cues; “color”) or the relevant dimension with its category-to-key mapping (mapping cues; “red green”, indicating that “red” and “green” go with the left/right responses, respectively). CRS was larger with dimension compared to mapping cues when cue-type varied between groups and was larger after trials involving dimension cues when cue-type varied on a trial-by-trial basis. In contrast, BI was not influenced by cue-type. These results suggest that task switching involve at least two distinct inhibitory processes, with CRS being related to the ease of retrieval of category-response mappings from memory.     

Factors Influencing Level of Stress During the Nursing Home Decision Process

This investigation examined whether characteristics of elders and their caregivers and facets of the nursing home decision-making context were associated with recalled levels of stress during nursing home decision-making. Employing a conceptual framework based upon the literature on caregiver stress and nursing home decision-making, we considered a number of factors that might influence sponsors' stress as decisions were being made about nursing home placements. We examined data from telephone interviews with a sample of 142 sponsors (responsible parties) of first-time, recently admitted nursing home residents. Higher levels of reported stress were directly associated with more factors triggering the decision to admit, higher levels of competing demands, and limited time. Employment was indirectly related to higher stress through its impact on demands. Hospitalization and being the spouse or an adult child of the resident were indirectly related to stress because they were associated with limited available time. The results offer some insights into the types of individuals who may be vulnerable to higher levels of stress and the kinds of interventions that might avert high stress in the nursing home decision process.     

Peer-mediated social-skills training and generalization in group homes

A multiple baseline across subjects design was used to evaluate generalization effects of a peer-tutoring procedure to teach social skills for individuals with developmental disabilities. Three residents with poor social skills living in community-based group homes served as participants in this study. Generalization data were collected during four conditions: (i) baseline (ii) social-skills training by therapist (iii) social-skills training by peer-tutor, and (iv) follow-up. Results demonstrated that participants did not generalize trained social skills to untrained settings (i.e., living room of a group home and community bowling alley) until the first participant was trained as a peer-tutor to train two other participants. These results were maintained 6 months after training was withdrawn. © 1998 John Wiley & Sons, Ltd.