The impact of parent behavior-management training on child depressive symptoms

The present study tested the impact of a parent behavior-management intervention on child depressive and internalizing symptoms. One hundred eighty-one children were randomly assigned to receive a videotape modeling parenting intervention, the Incredible Years, or to a wait-list control group. Children who received the intervention were more likely to have lower mother-rated mood and internalizing symptoms at post-treatment, compared with children in a wait-list control group. The effect sizes observed in the present intervention fell in the small-to-medium range for the sample as a whole, and some evidence supported the authors' hypothesis that effects would be strongest for children with baseline internalizing symptoms in the clinical range. Subsequent analyses also revealed that perceived changes in parenting effectiveness mediated the effect of treatment on children's post-treatment internalizing symptoms. The finding was consistent with study hypotheses and social learning explanations of child internalizing symptoms that guided selection of putative mechanisms. Implications for counseling psychologists and for designing interventions and prevention strategies for children with internalizing symptoms are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved).     

Hypothalamo-Pituitary-Adrenocortical Regulation Following Lesions of the Central Nucleus of the Amygdala

Previous reports indicate that the central nucleus of the amygdala (CeA) stimulates adrenocorticotropin and corticosterone secretion, suggesting a role for this region in central hypothalamo-pituitary-adrenocortical (HPA) stress regulation. To evaluate this hypothesis, this study assessed the impact of CeA lesion on the response of hypophysiotrophic paraventricular nucleus (PVN) neurons to acute restraint and chronic unpredictable stress exposure. In contrast to previous reports, CeA lesions did not affect corticosterone or ACTH secretion induced by acute stress. Acute restraint increased PVN corticotropin releasing hormone (CRH) mRNA expression, increased the number of parvocellular PVN neurons expressing the co-secretagogue arginine vasopressin (AVP), and induced cFOS mRNA expression in the parvocellular PVN. However, there was no additional effect of CeA lesion on any measure of PVN activation. Chronic unpredictable stress exposure induced long-term activation of the HPA axis, noted by thymic involution, adrenal hypertrophy and increased PVN CRH mRNA expression. Stress-induced changes in thymus and adrenal weights were not affected by CeA lesion. Further, CeA lesion rats did not differ from controls in post-stress CRH mRNA expression. However, basal CRH mRNA expression was increased in the PVN of CeA rats, suggesting that the CeA plays a role in long-term inhibition of the PVN. The results of these studies are not consistent with the hypothesis that the CeA is necessary for stress-induced pituitary-adrenocortical activation. Rather, this region may play a stressor-specific modulatory role in regulation of HPA function.     

Beyond Postmodernism: Restoring the Primal Quest for Meaning to Political Inquiry

My paper picks up a long ignored suggestion of Sheldon Wolin - that we use Thomas Kuhn's analysis of scientific revolutions to examine the crisis of "normal" political science. This approach allows us to see the connection between the state of the discipline and the larger crisis of meaning afflicting modernity. I then use Eric Voegelin's notion of a multicivilizational "truth quest" - or search for meaning - to make a case for institutionalizing "extraordinary" or "revolutionary" political science. I attempt such a discipline by following Voegelin - reflecting on "the full amplitude of human experience." Such a meditation takes place within the "first reality of existence" - Plato's metaxy or the "in-between" - the experience of human existence between the sacred and the mundane. I bring to Voegelin's exploration of the metaxy the realm of experience which is most radically "other" for modernity - the primal political order of paleolithic and contemporary hunting gathering societies. I argue that shamanic "Urreligion" and Socratic discussion share a boundary crossing logic which provides a basis for a discipline of "extraordinary political science." Finally I suggest that such a discipline is both the quest for, and, in a sense, a realization of, the Good Life - a source of order for the individual and society.     

Arecoline via Miniosmotic Pump Improves AF64A-Impaired Radial Maze Performance in Rats: A Possible Model of Alzheimer's Disease

Male Sprague–Dawley rats, preoperatively trained in a 1-h delay non-match-to-position radial maze task, received bilateral stereotaxic injections of a selective cholinotoxin, ethylcholine aziridinium ion (AF64A: 3 nmol/3 μl/lateral ventricle). Animals treated with AF64A made significantly more total postdelay errors than vehicle controls. Sustained delivery, via miniosmotic pumps, of arecoline (0.1, 0.3, 1, 3, 10, or 30 mg/kg/day sc for 14 days) attenuated the AF64A-induced cognitive impairment in a dose-dependent manner, producing an inverted U-shaped dose–response function which was optimal at 1.0 mg/kg/day. Following these studies, choline acetyltransferase activity was significantly reduced in hippocampi extracted from the AF64A-treated rats, indicating successful cholinotoxicity. This paradigm may be useful as a possible screen for potential Alzheimer's disease therapeutic agents. This conclusion is supported by published reports of beneficial arecoline effects observed following 2-week intravenous infusions in patients with Alzheimer's disease (Soncrant, Raffaele, Asthana, Berardi, Morris, & Haxby, 1993).     

A commentary on Dr. Kennedy's perception of the impact of Institutional Review Boards on cancer research

The Institutional Review Board is a committee of the institution responsible for carrying out the institution's responsibilities for the protection of human research subjects. Since it is a local committee, most of the complaints about the IRB can be resolved locally provided it is borne in mind that the IRB is the champion not only of the human research subject but also of the investigator. National or regional cooperative research protocols present problems that are not insurmountable.