Digital Commons Network^™

The Link Between Psychosocial Factors And Coronary Heart Disease: A Possible Neuroendocrine Mechanism, Sheila Wang

Dissertations

Coronary heart disease continues to be the leading cause of death in the affluent world. Despite identification of several risk factors for coronary heart disease (age, sex, lipoprotein profile, hypertension, diabetes, cigarette smoking, obesity), a significant amount of variability associated with the incidence of coronary heart disease cannot be explained solely on the basis of these risk factors. The contribution of psychosocial factors to the development of coronary heart disease (type A behavior, social isolation, traumatic events, unstable social conditions) continues to be a promising area of investigation. However, a biochemical pathway linking psychosocial factors to coronary heart disease remains …

Behavioral Effects Of Tyrosine During Sustained Wakefulness, D. L. Wiegmann, D. F. Neri, R. R. Stanny, S. A. Shappell, A. H. Mccardie, D. L. Mckay

Publications

The fatigue and cognitive performance deficits associated with sleep loss and stress, like that experienced during sustained flight operations and nighttime flying, have motivated the search for effective nonpharmacological countermeasures. The behavioral effects of the potential countermeasure tyrosine, an amino-acid precursor to dopamine and norepinephrine, were examined during an episode of continuous nighttime work involving one night's sleep loss. Volunteers performed nine iterations of a battery of cognitive and subjective tasks for approximately 13 h, beginning at 1930 and ending at 0820 the following morning. Subjects remained awake throughout the day on which the experiment began and were awake for …

Vocal Perception: Brain Event-Related Potentials In A Chimpanzee, Gary G. Berntson, Sarah T. Boysen, Michael W. Torello

Sentience Collection

We describe the first brain event-related potential (ERP) study of cognitive processes in the chimpanzee. In an extension of our studies on the ontogeny of vocal perception, ERP measures were obtained during the presentation of simple nonsignal stimuli as well as conspecific and human vocalizations. We initially confirmed findings from humans and monkeys of the appearance of a long-latency positivity in the ERP waveform to a rare stimulus in an oddball paradigm. This ERP component is reminiscent of the P3a reported in humans under similar (passive) experimental conditions. We further demonstrated that both conspecific and human vocal stimuli having affective …

Early Supplementary Feeding And Cognition: Effects Over Two Decades, Ernesto Pollitt, Kathleen S. Gorman, Patrice L. Engle, Reynaldo Martorell, Juan Rivera

Psychology and Child Development

The study reported in this Monograph of the effects of early supplementary feeding on cognition included two data collection periods: a longitudinal investigation spanning the years 1969-1977 and a cross-sectional follow- up carried out in 1988-1989. The study was conducted in four rural villages in Guatemala and compared the differential effects of exposure in child- hood (0-7 years) to an Atole supplement (11.5 g of protein; 163 kcal) or a Fresco supplement (59 kcal) on performance on a battery of psychoeducational and information-processing tests in adolescence and young adulthood (11-24 years). In this report, particular attention is given to a …

Death And Dying In The Tibetan Buddhist Tradition, Margaret Coberly, S. I. Shapiro

International Journal of Transpersonal Studies

No abstract provided.

Computer Simulation Study Of The Joint Deployment Of The 23rd Wing And 82nd Airborne Division From Pope Air Force Base, John B. Prechtel, Mark S. Wingreen

Theses and Dissertations

This thesis produced a model of the Army airdrop segment of the Pope AFB deployment system. The original intent was to model the entire system and simulate the simultaneous deployment of the 23rd Wing and 82nd Airborne Division; however, time constraints and incomplete data forced a reduction in scope. The study provides an excellent foundation for further research into the use of simulation to develop a generalized deployment sizing model. The airdrop segment of the system was modeled using the researcher's personal observations of the system, the expertise of personnel who work within the system, and documentation of the problems …

The Perceptual Weighting Of Speech-Related Acoustic Cues For 3 & 1/2-Year-Old Children Differs From That Of Adults: Results Using Natural And Synthetic Stimuli, Carol J. Manning

Student Work

Previous studies have found that children’s judgments of syllable-initial /s/ and / ∫ / are more related to the vocalic F2 transition and less related to the fricative-noise spectrum than are adults’ judgments [Nittrouer & Studdert- Kennedy, JSHR, 30 (1987); Nittrouer, J. Phon., 20 1992]. These results have been taken as evidence that young children organize linguistic input in units more closely approximating syllable size than phoneme size. Furthermore, such results have led to a model of speech development proposing that children’s weighting of the acoustic cues for phonemic categories changes as they gain linguistic experience, with a general shift …

Bipolar Control In Fixed Interfood Intervals, William L. Palya

Research, Publications & Creative Work

The ability of stimuli correlated with successive periods in a fixed interfood interval to support a response that produced or removed them was examined using pigeons. The degree to which those correlated stimuli elicited directed key pecks was also obtained. Stimuli early in the interval functioned as negative reinforcers, and stimuli late in the interval functioned as positive reinforcers. Stimuli correlated with successively later portions of the second half of the interval supported successively higher rates of elicited pecking and, with the exception of the final stimulus, supported successively higher rates of stimulus production. Stimuli in successively earlier portions of …

The Acute Effects Of Cocaine In Pigeons Performing Under A Progressive-Ratio Schedule, Claudia Ann Jones

Masters Theses

Although the progressive-ratio (PR) schedule has been used frequently to quantify the reinforcing effectiveness of self-administered drugs, it has seldom been used to examine the effects of drugs on food-maintained behavior and has never been used to evaluate the effects of cocaine on such behavior. In the present study, the effects of acute administrations of cocaine were evaluated in pigeons responding under a PR schedule of food delivery. Overall, cocaine produced a dose-dependent effect on food-maintained behavior. In general, acute administrations of cocaine at 0.56 to 3.2 mg/kg increased breaking points, whereas doses above 5.6 mg/kg decreased breaking points. Low …

An Experimental Demonstration Of The Transitive Conditioned Establishing Operation With Pigeons, Rachel Nunes Da Cunha

Dissertations

Skinner (1938) dealt with motivation in terms of the operations of deprivation/satiation and aversive stimulation. Later, Keller and Schoenfeld (1950) introduced the term establishing operation to refer to such motivative variables, and Michael (1982, and in press) expanded the Keller and Schoenfeld (1950) concept to include a type of learned motivative variable not explicitly identified in the earlier treatments. The purpose of the present research is the laboratory demonstration of this form of motivation, that Michael referred to as a transitive conditioned establishing operation (CEO).

The present experiment used a treadle-key procedure similar to that of Ailing (1990), but with …

Inhibition, Distraction & The Aging Frontal Lobe, Robert West

Masters Theses & Specialist Projects

lbeories in both the fields of ognstsvc aging and human neuropbychology have suggested that an impairment in the ability of an individual to inhibit irrelevant or distracting information either present in the environment or generated within the individual can ha‘ e detrimental effects on performance on a wide variety of cognitive tasks including text processing, inference formation, planning, and selective attention A number of researchers have attributed this increased distractibility in both clinical populations and health\ older individuals to a decline in or impairment of the functioning of the frontal lobes The present study extends findings suggesting a decline in …

Advancing Understanding Of Knowledge's Role In Lay Risk Perception, Branden B. Johnson

RISK: Health, Safety & Environment (1990-2002)

Emphasizing how knowledge affects lay Risk perception, summarizing studies and suggesting further research, the author differentiates between knowledge production, knowledge dissemination and information processing as affected by, e.g., heuristics and Risk aversion. He also suggests that better understanding of lay knowledge can also illuminate experts' hazard knowledge.

The Use Of Nonhuman Subjects In Behavior Analysis: A Review Of Jeab Studies, Dylan David Schmorrow

Dissertations

This study examined the use of nonhuman subjects in the Journal of the Experimental Analysis of Behavior, and the level of invasiveness of those studies. The invasiveness level of each study was determined according to the Shapiro and Field (1987) invasiveness rating scale. All studies published from 1958 through 1992 were considered. In addition to rating the individual studies with the invasiveness scale, data were collected concerning the species of the subjects and their number, whether anaesthesia, analgesia, drugs or toxic agents were used, whether surgery took place, levels of deprivation, and if the subjects died.

The findings from this …

Failure Of Methamphetamine Withdrawal To Produce Behavioral Disruptions In Pigeons, William F. Potter

Masters Theses

Methamphetamine, a widely used recreational drug, is not known to produce physiological dependence. Few studies to date have examined whether behavioral dependence occurs upon sudden withdrawal from methamphetamine. In this study, pigeons (n=4) were trained to respond under a multiple FR 25 IRT > 6-s schedule of reinforcement, allowing for examination of drug effects upon a relatively high rate of responding (FR) and a relatively low rate of responding (IRT > t). Acute adminstrations of methamphetamine showed rate-dependent effects at low doses, while higher doses decreased responding under both schedules. Tolerance was demonstrated for all subjects except one at the highest dose …

Education: Cultural Enterprise And Spiritual Activity, E. Neill

International Journal of Transpersonal Studies

No abstract provided.

The Polytheistic Classroom, B. Neville

International Journal of Transpersonal Studies

No abstract provided.

Book Reviews, Don Diespecker, Don Chipley

International Journal of Transpersonal Studies

No abstract provided.

Conceptualizing The Youthful Male Sex Offender: A Meta-Analytic Examination Of Offender Characteristics By Offense Type, Roger B. Graves

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A review of the literature demonstrates that, to date, no concerted effort has been made to conceptualize and develop typologies for youthful male sex offenders on the basis of offense type. Such typologies are deemed important to the understanding of possible developmental antecedents for sexual offending, as well as to the development of theory-driven, empirically based interventions and preventions. This study attempts to begin the conceptualization process through a meta-analytic examination of 140 research samples that provide data on over 16,000 individuals who have committed sexual offenses as youth. Three subtypes of offenders are identified on the basis of offense …

Lack Of Control As A Predictive Factor For Stress-Related Symptoms In Rape Victims, Chad Sombke

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Researchers have agreed that most rape victims experience stress-related symptoms similar to post-traumatic stress disorder. There have also been numerous studies that have tried to predict the severity of those stress-related symptoms, but the literature is inconclusive. Lack of perceived control is consistently mentioned in the rape research literature as being present in rape victims, but no study has empirically examined the relationship between perceived control and a rape victim's stress-related symptoms.

The purpose of this study was to empirically examine the relationship between perceived control and stress-related symptoms in rape victims. This was accomplished by comparing a group of …

Differential Reinforcement Of Other Behavior And Response Suppression: The Effects Of The Response-Reinforcement Interval, Thomas S. Rieg, Nelson F. Smith, Stuart Vyse

Psychology Faculty Publications

Three experiments were conducted comparing the effects of the relationship between the response-reinforcement interval and the reinforcement-reinforcement interval in a differential reinforcement of other behavior (DRO) contingency. The experiments followed an acquisition, treatment, and reacquisition sequence where rats were trained to press a lever for food, were exposed to response elimination contingencies (DRO and extinction), and finally tested for the effectiveness of their respective treatment conditions. Experiment 1 shows that the longer the response-reinforcement interval the more effective the suppressive effects of DRO. Experiment 2 shows that it is the relationship of the response-reinforcement interval to the reinforcement-reinforcement interval that …

Student Lives: Dreams And Realities, Ellen N. Junn

Office of the Provost Scholarship

No abstract provided.

A Multiple Case Study Of Selected Individuals Who Facilitate The Successful Adoption Of Environmental Public Policy, John H. Austin

Health Services Research Dissertations

The purpose of this study was to determine the personal and professional characteristics of successful individuals who have had a positive influence on the development of public policy concerning the environment. Additionally, which characteristics are most likely to enhance success and determine which of these characteristics might contribute to efforts toward developing public environmental policy in the future were investigated. The purpose was accomplished through the design and implementation of a multiple case study utilizing a qualitative research methodology. The sample for this study included six public servants who were identified as actively involved in affecting the development of public …

Effects Of Palatability Of Food On The Conditioning Of Hunger In Rats, Elizabeth Yates Hill

Psychology Theses & Dissertations

An experiment was conducted to study the association of foods of different levels of palatability and environmental events present during eating. Rats were exposed to different. foods in a start box and then allowed to run to a goal box containing food of a lesser or equal palatability. All animals showed a decrease in latency to eat in the start box and an increase in the amount of food consumed in the start box, with no significant differences in treatment groups at the end of conditioning. Although all groups, including the control group did run faster and eat more over …

Effects Of Familiarity With A Sample-Stimulus In Selection-Based Learning Of Verbal Behavior, Robert J. Wallander

Masters Theses

Selection-based verbal behavior involves indicating a stimulus in some way from a set of stimuli. Twenty undergraduates served as subjects in this study of familiarity with a sample stimulus in a selection-based paradigm. The study utilized twenty Japanese Kanji characters as the comparison stimuli to be selected. Half the subjects were presented English names of animals as sample stimuli and the other half of the subjects were presented Japanese Katakana symbols (which appear as little more than nonsense figures) as sample stimuli.

T-tests were performed on the average number of twenty-trial blocks needed to meet criterion (two consecutive blocks without …

The Effects Of Gender Of Observers And Victims On Perceptions Of Fairness In Unjust Situations., Laura Leah Josoff

Student Work

The effects of gender of observers and victims on perceptions of fairness in unjust situations were investigated. Subjects participated in group sessions and were blocked by gender and then assigned to either the disadvantaged female (read a composition concerning a femal who received poor outcomes) or disadvantaged male (read a composition concerning a male who received poor outcomes) group. After reading the composition, subjects completed a questionnaire which was related to the composition. It was expected that the perception of fairness would depend upon the gender of the perceiver as well as the gender of the victim. Specifically, females would …

The Effects Of Differing Response Force Requirements On Response Rate And Post-Reinforcement Pause, Kenneth Lee Ailing

Dissertations

The present study consisted of three experiments in which rats were exposed to two-component multiple schedules of reinforcement. In the first experiment, fifteen responses were required to produce reinforcement in both components of the multiple schedule. In one component 25 g of downward force was always required to operate the response lever. In the other, the force required varied from 25 g to 200 g across conditions. In the second experiment, fifteen responses were required to produce reinforcement in both components of the multiple schedule. In one component 25 g of downward force was always required to operate the response …

Possessions Of School-Aged Children, Myralynn Coleman

Theses Digitization Project

No abstract provided.

Cue-To-Consequence Effects In An Associative Account Of Causal Attribution, Jill Ann Kuhn

Theses Digitization Project

No abstract provided.

The Effect Of Phenol Denervation Of The Hepatic Portal Vein Nerves On Taste Aversion Learning, Deborah Jane Hooks

Theses Digitization Project

No abstract provided.

Behavioral Sex Differences In Children Of Diverse Cultures: The Case Of Nurturance To Infants, Carolyn P. Edwards

Department of Psychology: Faculty Publications

This chapter draws on the data from the Children of Different Worlds study (Whiting & Edwards, 1988) to consider the origin of sex differences in children’s behavior worldwide, in particular: (1) how different kinds of social behavior are elicited by different contexts of socialization (defined by the sex, age, status, and kinship of social interactants, ongoing activities, and other potent dimensions of setting); (2) how these contexts of socialization are distributed across cultures and associated with various adult subsistence strategies, family structures, household patterns, and forms of social networks; and (3) how boys and girls of each age in diverse …