Prevention of the degraded-contingency effect by signalling training trials

Presentation of unsignalled unconditioned stimuli (USs) interspersed among Pavlovian excitatory conditioning trials weakens conditioned responding to a target conditioned stimulus (CS; Rescorla, 1968). However, signalling these intertrial USs with another cue (a cover stimulus) has been shown to alleviate this degraded-contingency effect (e.g. Durlach, 1982, 1983). In contrast to signalling the inter-trial USs, the present experiments examined the effect on the degraded-contingency effect of signalling the target CS-US pairings. Experiment 1, using parameters selected to avoid overshadowing, found that consistently presenting a cover stimulus immediately prior to the target CS-US pairings during degraded-contingency training alleviated the degraded-contingency effect. Experiment 2 examined the underlying mechanism responsible for this cover-stimulus effect through posttraining associative inflation of the cover stimulus or the context, and found that inflation of the cover stimulus attenuated responding to the target CS (i.e. empirical retrospective revaluation). The results are discussed in terms of various acquisition- and expression-focused models of acquired responding.     

Computer‐Mediated Communication Effects on Disclosure,Impressions, and Interpersonal Evaluations: Getting to Know One Another a Bit at a Time

This investigation examined how computer‐mediated communication (CMC) partners exchange personal information in initial interactions, focusing on the effects of communication channels on self‐disclosure, question‐asking, and uncertainty reduction. Unacquainted individuals (N = 158) met either face‐to‐face or via CMC. Computer‐mediated interactants exhibited a greater proportion of more direct and intimate uncertainty reduction behaviors than unmediated participants did, and demonstrated significantly greater gains in attributional confidence over the course of the conversations. The use of direct strategies by mediated interactants resulted in judgments of greater conversational effectiveness by partners. Results illuminate some microstructures previously asserted but unverified within social information processing theory (Walther, 1992), and extend uncertainty reduction theory (Berger & Calabrese, 1975) to CMC interaction.     

Self-Affirmation Reduces Biased Processing of Health-Risk Information

An experiment tested whether a positive experience (the endorsement and recall of one's past acts of kindness) would reduce biased processing of self-relevant health-risk information. Women college students (N = 66) who reported high or low levels of daily caffeine use were exposed to both risk-confirming and risk-disconfirming information about the link between caffeine consumption and fibrocystic breast disease (FBD). Participants were randomly assigned to complete an affirmation of their kindness via questionnaire or to a no-affirmation condition. Results indicated that the affirmation manipulation made frequent caffeine drinkers more open, less biased processors of risk-related information. Relative to frequent caffeine drinkers who did not affirm their kindness, frequent caffeine drinkers in the affirmation condition oriented more quickly to the risk-confirming information, rated the risk-confirming information as more convincing than the risk-disconfirming information, and recalled less risk-disconfirming information at a 1-week follow-up. They also reported greater perceived personal control over reducing their level of caffeine consumption. Although frequent caffeine drinkers in the affirmation condition initially reported lower intentions to reduce their caffeine consumption, there was no evidence that they were less likely to decrease their caffeine consumption at the follow-up. The possibility that positive beliefs and experiences function as self-regulatory resources among people confronting threats to health and well-being is discussed.     

Psychological Variables Associated with Pain Perceptions Among Individuals with Chronic Spinal Cord Injury Pain

Structural equation modeling was used to examine the relationships between selected psychological variables and pain perceptions in 103 individuals experiencing chronic pain following traumatic spinal cord injury (SCI). Previous studies have suggested strong relationships between psychological variables and chronic SCI pain, but further delineation of such relationships is needed in order ultimately to develop more effective pain management strategies for individuals afflicted with such pain. Anger was found to be significantly related to perceptions of pain (p < .05), but neither guilt nor anger suppression was significantly associated with perceived pain. Internal health locus of control was associated with decreased pain perceptions (p < .05), but there was no significant relationship between internal health locus of control and anger. Punishing responses from significant others to pain complaints were related to feelings of guilt (p < .05) and perceived pain (p < .05), but this relationship was not mediated by guilt.     

“We're Fighting Two Different Battles Here”: An Exploration of African American Women's Definitions of Self at Predominately White Schools

Using Black feminist thought and the sociocultural model of the self, this paper explores the relationship between race and gender in the self-definitions of African American women attending predominately white colleges and universities. The African American women who participated in the study, suggest that knowledge generated about the self pushes us beyond the categorical thinking that limits our ability to understand the complexity of the self. Data from 13 interviews conducted at two predominately white schools is presented and analyzed. Using this data, I present a way of thinking about the identity of African American women that demonstrates the complexity of defining self within the narrow confines of race and gender.     

Men,Women, and the Self-Presentation of Achievement

This study examined men's and women'sself-presentation of academic achievement in aninteractional context. First-year college students wereled to expect an interaction with a peer to discussacademic achievement. However, the peer was actually aconfederate who portrayed his or her achievement in aboastful, moderate, or self-deprecating manner. Prior tothe anticipated interaction, subjects were induced to describe their own academic achievement andmake predictions about their first-semester grade pointaverages (GPAs) to be shared with the peer. Men's GPApredictions were highest in the boastful condition (and higher than their actual GPAs), nexthighest in the moderate condition, and lowest (and lowerthan their actual GPAs) in the self-deprecatingcondition. Women's predicted GPAs,unexpectedly,didnotvary by condition. Women were less comfortable inpredicting their GPAs than men, and there was a tendencyfor men to be more comfortable than women whileobserving the boastful peer and women to be morecomfortable than men while observing the self-deprecatingpeer. Results are discussed with regard to past researchand self-in-relation theory.