Stress-induced Fos-like Immunoreactivity in the Pons and the Medulla Oblongata of Rats

Immunoreactivity of the immediate early gene c-fos was used to investigate changes in the activity of brainstem neurons in response to acute stressors like immobilization, formalin-induced pain, cold exposure, hemorrhage and insulin-induced hypoglycemia. Different stressors induced Fos-like immunoreactivity in different pontine and medullary neurons. A single, 3 hour immobilization was found to be a very strong stimulus that activated brainstem catecholaminergic (tyrosine hydroxylase-immunopositive) neurons and cells in the raphe and certain pontine tegmental nuclei, as well as in the reticular formation. Pain, induced by a subcutaneous injection of formalin was also effective on catecholamine-synthesizing neurons and on others cells in the nucleus of the solitary tract. Cold exposure activated cells mainly in the sensory spinal trigeminal and parabrachial nuclei and in the so-called "pontine thermoregulatory area". Moderate Fos-like immunoreactivity was induced by a hypotonic (25%) hemorrhage in medullary catecholaminergic neurons, the nucleus of the solitary tract and the Barrington nucleus. Among stressful stimuli used, insulin-induced hypoglycemia elicited the smallest Fos activation in the lower brainstem. The present observations indicate that different stressors may use different neuronal pathways in the central organization of the stress response.     

Colonialism and Its Others: Considerations On Rights and Care Discourses

I point to a colonial care discourse that enabled colonizers to define themselves in relationship to “inferior” colonized subjects. The colonized, however, had very different accounts of this relationship. While contemporary care discourse correctly insists on acknowledging human needs and relationships, it needs to worry about who defines these often contested terms. I conclude that improvements along dimensions of care and of justice often provide “enabling conditions” for each other.     

The Relations among Maternal Depressive Disorder, Maternal Expressed Emotion, and Toddler Behavior Problems and Attachment

Direct and indirect relations among maternal depression, maternal Expressed Emotion (EE: Self- and Child-Criticism), child internalizing and externalizing symptoms, and child attachment were examined. Participants were mothers with depression (n?=?130) and comparison mothers (n?=?68) and their toddlers (M age?=?20 mo.; 53% male). Assessments included the Diagnostic Interview Schedule (maternal depression); the Five Minute Speech Sample (EE); the Child Behavior Checklist (toddler behavior problems); the Strange Situation (child attachment). Direct relations were significant linking: 1) maternal depression with both EE and child functioning; 2) Child-Criticism with child internalizing and externalizing symptoms; 3) Self-Criticism with child attachment. Significant indirect relations were found linking maternal depression with: 1) child externalizing behaviors via Child-Criticism; 2) child internalizing behaviors via Self- and Child-Criticism; and 3) child attachment via Self-Criticism. Findings are consistent with a conceptual model in which maternal EE mediates relations between maternal depression and toddler socio-emotional functioning.     

Adolescent Conflict as a Developmental Process in the Prospective Pathway from Exposure to Interparental Violence to Dating Violence

Within a developmental psychopathology framework, the current study examined adolescent conflict (age 16) with families, best friends, and dating partners as mediators in the prospective pathway from exposure to interparental violence (EIPV) in early childhood (0–64 months) to dating violence perpetration and victimization in early adulthood (age 23). Adolescent conflict was predicted to partially mediate EIPV and dating violence with significant direct paths from EIPV to dating violence, given the extant literature on the salience of early childhood EIPV for later maladjustment. Participants (N?=?182; 99 males, 83 females; 67 % Caucasian, 11 % African-American, 18 % other, 4 % unreported) were drawn from a larger prospective study of high-risk mothers (aged 12–34 years) that followed their children from birth through adulthood. EIPV and adolescent conflict were rated from interviews with mothers and participants, and dating violence (physical perpetration and victimization) was assessed with the Conflict Tactics Scale. Path analyses showed that EIPV in early childhood (a) directly predicted dating violence perpetration in early adulthood and (b) predicted conflict with best friends, which in turn predicted dating violence perpetration. Although mediation of best friend conflict was not evident, indirect effects of EIPV to dating violence were found through externalizing behaviors in adolescence and life stress in early adulthood. Findings highlight that conflict with best friends is affected by EIPV and predicts dating violence, suggesting that it may be a promising target for relationship-based interventions for youth with EIPV histories. Furthermore, deleterious early experiences and contemporaneous risk factors are salient predictors of dating violence.     

Academic attitudes and their antecedents

In today's competitive workplace, individuals who are best prepared will have the greatest chance of obtaining and retaining jobs. Students can better prepare by developing the maximum possible knowledge and skills during their college educations. Research has shown that attitudes and perceptual variables have significant effects on development activity in organizations. We extend that research by using structural equations modeling to examine influences on attitudes toward one's college education. We posited that Big Five personality factors influence personal growth, readiness to change, and the perceived instrumentality of a university education and that these factors influence attitudes toward education. Results supported the posited model. A better understanding of antecedents of attitudes can enhance educational intervention effectiveness.     

Brand placements Bollywood style

• The globalization of media allows brand placements subtle ways to reach local and international consumers. This study examines Indians' responses to brand placements in a Bollywood film. Psychological processing of embedded brands was assessed by gauging the effects of film involvement and brand consciousness on recall. Film involvement showed an adverse effect on brand recall, while brand consciousness had a positive effect. Brand consciousness was also positively related to the notion that brand placements enhanced film realism, but was not related to attitudes toward product placement in general.

Copyright © 2006 John Wiley & Sons, Ltd.     

Differential effects of pretraining influences on readiness to change

Training and development are integral to organizational change but are difficult to accomplish effectively in dynamic and complex work environments. Such environments can lead to nonoptimal training conditions that reduce individuals' readiness to change and training effectiveness. On the basis of the transtheoretical model of change (J. O. Prochaska, C. C. DiClemente, & J. C. Norcross, 1992), the authors examined pretraining influences (choice, social support, and motivation to learn) on readiness to change under nonoptimal training conditions. They examined specific dimensions of readiness to change rather than a global readiness to change construct. Participants were 183 driving under the influence (DUI) offenders participating in a court-mandated, alcohol-related Weekend Intervention Program. Perceived choice to attend training, social support, and motivation to learn affected readiness to change when individuals were resisting, considering, acting on, or maintaining behavior or attitude change. These effects were also dependent on age. Results suggest how training effectiveness could be improved when trainees are least likely to learn.     

Body part representations in verbal semantics

Embodied theories of language propose that word meaning is inextricably tied to—grounded in—mental representations of perceptual, motor, and affective experiences of the world. The four experiments described in this article demonstrate that accessing the meanings of action verbs like smile, punch, and kick requires language understanders to activate modality-specific cognitive representations responsible for performing and perceiving those same actions. The main task used is a word-image matching task, where participants see an action verb and an image depicting an action. Their task is to decide as quickly as possible whether the verb and the image depict the same action. Of critical interest is participants’ behavior when the verb and image do not match, in which case the two actions can use the same effector or different effectors. In Experiment 1, we found that participants took significantly longer to reject a verb-image pair when the actions depicted by the image and denoted by the verb used the same effector than when they used different effectors. Experiment 2 yielded the same result when the order of presentation was reversed, replicating the effect in Cantonese. Experiment 3 replicated the effect in English with a verb-verb near-synonym task, and in Experiment 4, we once again replicated the effect with learners of English as a second language. This robust interference effect, whereby a shared effector slows discrimination, shows that language understanders activate effector-specific neurocognitive representations during both picture perception and action word understanding.     

PERSONALITY AND PERCEPTUAL EXPERTISE:

Abstract— We hypothesized that people become expert at perceiving information that is related to concepts they think about a great deal, because of their extensive perceptual experience with this material To test this idea, we manipulated the capitalization of a series of briefly exposed words If expertise emerges because of perceptual experience, then people should show facilitation identifying words that they think about a great deal, but only when capitalization of these words is consistent with prior perceptual experience with these words Support for this hypothesis was found in two experiments–one in which trait words were presented to depressed and nondepressed subjects, and one in which food words were presented to anorexic and nonanorexic subjects Thus, these experiments demonstrated that personality, as well as personality disorder, has the potential to change the nature of the input people receive from the perceptual system