Induction produced by upcoming food-pellet reinforcement: Effects on subsequent operant responding

Research has demonstrated that rats' rates of operant behavior maintained by 1% sucrose reinforcement in the first half of an experimental session are heightened when food-pellet reinforcers, rather than 1% sucrose, will be available in the second half. Experiment 1 showed that rats that had been displaying this positive induction effect acquired a new response more quickly when 1% sucrose was used to reinforce the novel response than did rats that had not been displaying induction. Experiment 2 showed that this enhanced acquisition remained even when the new response was learned in a new environment. Experiment 3 showed that unconditioned rates of making a new response did not differ between subjects that had or had not been displaying induction. Experiment 4 further showed that significantly different rates of responding on a novel task were not observed when that response was reinforced with a new, non-sucrose reinforcer. Together, the present results suggest that induction results in and/or from an increase in the reinforcing value of the 1% sucrose. As such, the present results have both theoretical and practical implications.     

Depression Following Traumatic Brain Injury: The Validity of the CES-D as a Brief Screening Device

The validity, reliability, and factor structure of the Center for Epidemiological Studies-Depression Scale (CES-D) was examined with 253 patients seen for neuropsychological evaluation following traumatic brain injury (TBI). All patients completed the CES-D; 31 also completed the Beck Depression Inventory (BDI) and 17 completed the Minnesota Multiphasic Personality Inventory-II (MMPI-II). The CES-D demonstrated good concurrent, construct validity, significantly correlating with the BDI (r = .673, p < .0001) and the MMPI-II (Depression Scale T score r = .536, p = .027). The CES-D also demonstrated good internal consistency (coefficient alpha = .8195) and split-half reliability (Spearman–Brown r = .8284). Principal components factor analysis with varimax rotation resulted in a four-factor solution that accounted for 56.01% of the variance. The factor structure differed from the originally reported factor structure, and indicated that somatic difficulties were strongly associated with dysphoric affect in TBI patients. The CES-D is a valid and reliable screening instrument for use with TBI patients.     

The Problem of Ontotheology: Complicating the Divide Between Philosophy and Theology

This paper examines the problem of ontotheology as it was defined by Martin Heidegger, and how it has subsequently been approached by those philosophers and theologians who have followed in his wake. It argues that Heidegger's initial analysis of the onto-theological condition was mistaken by its presumption of a radical divide between philosophy and theology. Furthermore, many of the key thinkers who have followed after Heidegger have merely reinscribed this supposed divide between thought and faith, rather than genuinely questioning the terms Heidegger thought self-evident. The result, even among some of the most radical and influential contemporary thinkers such as Emmanuel Levinas, John Caputo, and Jean-Luc Marion, has been a contemporary philosophy deprived of questions of faith and a theology unaccountable to its place in the world. In response to this shortcoming of contemporary philosophical and theological thought, Jacques Derrida has approached the problem of ontotheology from the dual perspective of both thought and faith, and thereby, has provided a new path of thought beyond the problem of ontotheology and towards a renewed appreciation for the possibilities for a genuine philosophical theology.     

Exploring evaluative conditioning using a working memory task

Johnsrude, Owen, Zhao, and White (1999) demonstrated that evaluative conditioning (EC) can occur even while participants conduct a working memory task. This is consistent with claims that EC can occur outside awareness, and hence is an automatic process. In their study, three abstract patterns were paired differentially with a candy reinforcer: 90, 50, or 10%. On reinforced trials a red ball was presented in one of three locations on a computer screen. Participants were instructed to keep a tally for each location. We argue that if EC is automatic, then it will not consume cognitive/attentional resources, and hence co-occurrence of red ball and reinforcer should be irrelevant. Results from four experiments indicate that learning is only evident when the red ball and reinforcer co-occur or when the complexity of the working memory task is reduced. Together, the results suggest that EC is governed by specific attentional constraints on working memory. This interpretation questions the automatic nature of EC.     

Kuczynski on Partial Knowledge and the Paradox of Analysis

John–Michael Kuczynski says the "paradox of analysis" can be resolved with the proper definition of "partial knowledge." He says that this definition will not do: (K) S has partial knowledge of x = _df S knows some, but not all, of x 's parts. He offers an alternative account of incomplete or partial knowledge. I argue here that: (a) Kuczynski's chief criticisms of (K) are defective; (b) his proposed solution to the paradox of analysis has no clear application to the paradox in its familiar forms; and (c) his solution may not avoid the puzzle about partial knowledge it was designed to resolve.     

Homotopic callosal inhibition in hemispheric priming: A test of cook’s topographical inhibitory model

This study set out to evaluate Cook’s (1986) topographical inhibitory model of language processing in the hemispheres. The model employs the neurophysiological mechanism of homotopic callosal inhibition to explain recent findings which suggest that the left hemisphere processes denotative meaning, while the right hemisphere specializes in connotative meaning. Specific predictions in relation to lateralized priming phenomena were derived from the model. The first experiment tested the prediction that word repetition and denotative priming would facilitate responses to right visual field targets, while connotative priming would favour the left visual field. None of these predictions were confirmed. A second experiment modified in a number of ways, provided a more extensive test of the predictions but produced essentially the same result. It was concluded that no evidence could be obtained to support the topographical inhibitory model. Instead, the results extend previous findings by suggesting that associative priming has more or less equivalent effects in each hemisphere, provided the interval between prime and target is sufficiently long.     

Innovative Retention Methods in Longitudinal Research: A Case Study of the Developmental Trends Study

Minimizing participant attrition is vital to the success of longitudinal research. The Developmental Trends Study (DTS), a longitudinal study of the development of disruptive behavior disorders, has achieved a low attrition rate throughout the study. The development of early retention strategies, managing contact and scheduling history through the use of electronic databases, interviewer persistence, and the emergence of new electronic search methods have contributed to the success of our study. A literature review of retention methodology and practical solutions to maintain participant cooperation is described. A case study of the DTS is presented to inform researchers in longitudinal research on new methods used to maintain high retention rates.     

Toward an Analysis of the September 11, 2001 Terrorist Event from the Holistic, Developmental, Systems-Oriented Perspective

The holistic, developmental, systems-oriented perspective, an extension of some aspects of the theoretical perspective of Heinz Werner and his associates, is briefly characterized with respect to its assumptions, methodological approach, and its analysis of a variety of research on critical person-in-environment transitions. The theoretical perspective is applied in an analysis of the far-reaching critical person-in-environment transition that began with the catastrophic events of September 11, 2001.     

An Anthropologist at Ground Zero, or How I Applied My Group Perspective to the 9/11 Organizational Relief Effort

This paper, originally presented November, 2001 at the Plenary Session of the Annual Conference of the Eastern Group Psychotherapy Society in New York, describes the application of group psychodynamics to organizations under stress. The presentation illustrates the system sensitivity required of consultants assisting organizations traumatized by the 9/11 terror attacks. The author's comments and recommendations were shaped by his experience overseeing the consulting work provided by EGPS Members to Wall Street in the aftermath of the attacks.