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The Effects Of The Allocation Of Attention Congruent With Lateralized Cognitive Tasks On EEG Coherence Measurements

Description: The single task condition of the Urbanczyk and Kennelly (1991) study was conducted while recording a continuous electroencephalographic (EEG) record. Attention was allocated by instructed lateral head orienting and eye gaze either congruently or incongruently with lateralized cognitive tasks. Thirty university subjects retained a digit span or a spatial location span for a 20 second retention interval. EEG data were extracted from the 20 second retention intervals and interhemispheric coherence was calculated for homologous sites in the temporal, parietal and occipital regions of the brain. There was a main effect for group, with congruent orienting producing greater coherence values than incongruent orienting. This effect of attention on alpha coherence values was found in the low alpha (8-10 Hz) frequency band. This provides evidence that the lower alpha frequency band is reflective of manipulations of attention. The higher coherence measures for the congruent orienting group indicates that homologous regions of the two hemispheres are more coupled into a single system when lateralized attention activates the same hemisphere performing the cognitive task. In the higher alpha frequency band (11-13 Hz) group, sex, site and task interacted. This provides evidence that the higher alpha band is more affected by cognitive processing of the specific task undertaken. An interhemispheric brain system, affected by the lateral orientation of attention, may underlie psychometric intelligence's general “g” ability (Spearman, 1927.)
Date: May 2002
Creator: Hill, Cynthia DeLeon
Partner: UNT Libraries

Changing People's Reaction to Terrorism

Description: Two hundred and fifty-three subjects were used in an experiment to try to determine how differences in news media presentations affect the reader's view of terrorism. Two stories about a terrorist attack were used, one describing a bombing, the other a hijacking. Both stories had two versions using no one injured or eight innocent people injured. One group of subjects was given no additional information about terrorism. The second group was given information after the description that emphasized the salience of terrorism. The third group received information that de-emphasized the seriousness of terrorism. Subjects were also given a questionnaire designed to measure authoritarianism and one to measure conservatism. It was found that subjects scoring high on authoritarianism or conservativism favored more severe punishment for terrorists than did those scoring lower on the two scales. Findings did not support the hypothesis that providing people with information about terrorism could lessen the impact of terrorist events.
Date: August 1988
Creator: Nagley, Andrew Guy
Partner: UNT Libraries

Hedonic Versus Predictive Inhibition of Avoidance Responding in Rats

Description: Traditional two-process theory predicts that a conditioned stimulus (CS) paired with shock offset on Pavlovian trials will inhibit operant avoidance responding. Two explanations of the inhibitory mechanism involved were compared: contemporaneous pairing of CS with a hedonic relief reaction versus the predictive, discriminative relationship of CS to the non-shock interval. The pattern of avoidance inhibition associated with cessation CSs paired with electric shocks of constant duration was expected to be different from the pattern accompanying cessation CSs paired with shocks of variable duration. Mean rates of responding by the two groups were compared by analysis of covariance using baseline as the covariate. Neither CS displayed any reliably observable effects on avoidance rates. Possible procedural flaws and compatible improvements are discussed.
Date: December 1976
Creator: Lipscomb, Robert Scrivener
Partner: UNT Libraries

Skills Acquisition and Cognitive Restructuring Operations in Training Assertive Behaviors

Description: Behavioral and cognitive skills training for increasing assertive behavior in college students were compared to an equally credible expectancy-control. One significant multivariate function successfully discriminated between the behavioral and control groups, and between the cognitive and control groups. This function was interpreted as showing enhanced behavioral/cognitive construction competencies in the behavioral and cognitive groups. A second function, though not significant, suggested that the cognitive training resulted in more aggressive behavior.
Date: May 1979
Creator: Lefebvre, R. Craig
Partner: UNT Libraries

Examining Employee Satisfaction, Customer Service and Customer Satisfaction in a Retail Banking Organization

Description: In the increasingly competitive world of retail banking, organizations are focusing their attention on customer service as a means of increasing customer loyalty and retention. With this goal of increasing customer retention, the link between the attitudes of the service provider (employee satisfaction), the customer interaction behaviors that those attitudes lead to (customer service quality), and the attitudes that those behaviors generate in the customer (customer satisfaction) has become an increasingly important area of investigation. The goal of this research is to analyze the relationships that exist between these three variables: employee satisfaction, customer service quality, and customer satisfaction in a mid-sized retail bank. Data from three separate surveys collected during the same time period in 137 branches of a regional bank are analyzed using multiple regression analysis to determine whether relationships and interactions exist at a banking center level. While results of the analyses did not show a significant relationship between the variables, issues relevant to this determination are discussed and conclusions drawn regarding the nature of these constructs.
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Date: May 2006
Creator: Simpson, Eric Phillip
Partner: UNT Libraries

Police Attitudes Toward Rape

Description: Research has demonstrated that the general public accepts many rape myths and that rape attitudes are strongly connected to other deeply held and pervasive attitudes. However, it has not been clear whether police officers reflected similar attitudes. This research attempted to ascertain if police share the same antecedents of rape myth acceptance as the general public. Using officers from two police departments, it was demonstrated that attidudes regarding sex role stereotyping, sexual conservatism, acceptance of interpersonal violence, and adversarial sexual beliefs were significantly correlated with acceptance of rape myths. However, police were more pro-victim (p < .01) in their attitudes as compared to the general public. Officers who received specialized rape-related training were not significantly different in rape attitudes from those officers who had not received training.
Date: August 1981
Creator: Best, Connie Lee
Partner: UNT Libraries

Validity Scale Elevation in Factor Analysis of the MMPI-168

Description: In a statistical comparison of orthogonal normalized varimax factor analytic solutions for the MMPI-168 including and excluding invalid protocols of psychiatric inpatients, at least one factor reflection was observed. Factors identified were Psychotic Distortion (Absence of Distress), Somaticism, Depression, Extroversion, Masculinity-Femininity, and Low Morale. Factors obtained, and representative clinical scales, were consistent with those obtained by others in investigations of both abbreviated and standard MMPI forms. Statistical comparison of factors identified by the two analyses indicated congruence. Possible sources of factor distortion were discussed.
Date: May 1981
Creator: McGraw, Richard Michael
Partner: UNT Libraries

The Effect of Hypothalamic Stimulation on the Phagocytic Activity of the Reticuloendothelial System

Description: Although research has linked the central nervous system with changes in immunoresponsivity, research on the possible role of the central nervous system in altering reticuloendothelial activity is lacking. This study investigated the possible relationship between hypothalamic structures and changes in responsivity of the reticuloendothelial system. Eight male albino rats received bilateral electrode implants in the ventromedial area of the hypothalamus and, following brain stimulation, reticuloendothelial activity was assessed 3, 6, 12, 24, and 96 hours after stimulation. Brain stimulation decreased phagocytic activity of the reticuloendothelial system. These findings may increase our understanding of a possible neural mechanism underlying relationships between stress and resistance to disease states.
Date: December 1979
Creator: Lambert, Paul Louis
Partner: UNT Libraries

Operant Conditioning of the Tongue Flicker Response of Snakes

Description: Sixteen Nerodia rhombifera were used in each of two experiments investigating operant conditioning of the tongue flicker response. A yoked pair design was utilized throughout phases of baseline, continuous reinforcement, partial reinforcement, and extinction. During partial reinforcement, one-half of the experimental animals were reinforced FR-4 and the other half were reinforced continuously. Control subjects were treated as were their experimental partners, with the exception of noncontingent reinforcement. Statistical comparisons between means for groups during the CRF phase, partial reinforcement phase, and extinction phase were nonsignificant. However, because some snakes in the experimental groups appeared to show increases in response rate during CRF and FR conditions, the possibility exists that modification of task parameters will produce positive results in future research.
Date: May 1981
Creator: Ward, Rocky
Partner: UNT Libraries

Peer Counselor Effectiveness in a Study Skills Course

Description: Research has demonstrated the efficacy of attitudinal-motivational counseling in conjunction with study skills training. However, it has not been clear whether group or individual counseling was most beneficial. This research attempted to evaluate the usefulness of peer counselors in group and individual counseling sessions. Using students voluntarily enrolled in a study skills program, it was demonstrated that all students improved in study habit scores. However, only individual-peer counseling was effective in changing academic attitudes (p < . 05), as compared to group-peer counseling, no-counseling, and no-treatment conditions. Grade-point-average change scores were not differentially effected by the treatment conditions.
Date: May 1980
Creator: Till, Steven Michael
Partner: UNT Libraries

Structural Aspects of Loevinger's Model of Ego Development

Description: The study reviews the structural and psychometric underpinnings of Loevinger's theory of ego development. It is noted that the current literature investigating the validity of Loevinger's model has not adequately addressed the structural assumptions of the theory. "Process" variables are hypothesized to vary depending on the process of structural change. Two such variables, cognitive complexity and the organization of cognitive constructs, were measured in 73 college students, staff, and faculty members in three North Texas institutions. Level of ego development, measured by the Washington University Sentence Completion Test, was assessed in each subject and the pattern of cognitive complexity and construct organization was evaluated across ego levels. Results offer only limited support for the stage model's structural assumptions. Discussion highlights several inadequacies in Loevinger's instrument and offers a direction for possible revision. Implications of the results are examined in terms of current theoretical issues.
Date: August 1985
Creator: Harrison, James Ray
Partner: UNT Libraries

Provocative Versus Neutral Role-Playing Prompts and Assertive Behavior

Description: The behavior role-playing task (BRPT) has become a popular method of assessing assertive behavior. However, current research suggests that situational factors can affect the outcome of such assessments, independently of the subject's level of assertiveness. The present study investigated the effects of one such factor: the type of prompt delivered during the BRPT. It was hypothesized that subjects would respond more assertively to provocatively prompted scenes than to neutral scenes. Twenty nursing students were exposed to BRPTs involving both provocative and neutral role-player prompts. The results revealed that while provocative BRPTs generated significantly greater amounts of self-reported anger and anxiety than did the neutral BRPTs, there were no significant differences in response latency, duration, or assertive content between the two conditions.
Date: December 1979
Creator: General, Dale A.
Partner: UNT Libraries

Highway Abuse and Violence: Motorists' Experiences as Victims

Description: Only circumscribed aspects of highway aggression have been investigated. The upsurge of abuse and violence transpiring between motorists necessitated a more definitive depiction of the actual events, participants, and relevant contextual features. A questionnaire administered to 120 motorists, aged 18 to 68, solicited a recountal of incidents occurring within 12 months and a description of their most recent encounter. Based on severity of experience, subjects were relegated to distal threat, direct threat, and nonvictim groups. Although most events involved unreported distal threats lasting less than three minutes, men and non-college graduates were more often directly threatened, while non-victims were predominantly women and college graduates. Perpetrators were primarily unknown Caucasian males who generally aggressed in populated areas during afternoon hours.
Date: May 1984
Creator: McAlhany, Deborah A.
Partner: UNT Libraries

Learned Helplessness: Effect on Working Memory and Fluid Intelligence

Description: To determine if learned helplessness treatment debilitates human working memory and fluid intelligence, 60 university students, classified as high or low self-monitors, were assigned to one of three treatments: intermittent (50%) controllable positive feedback, uncontrollable (yoked) negative feedback, and no treatment. Test tasks included backward digit and backward spatial span (representing working memory), matrices (representing fluid intelligence), vocabulary (representing crystallized intelligence), and forward digit and forward spatial span (representing immediate span of apprehension). Results generally were not significant and were discussed as possibly due to ineffective treatment procedure. Further research on this topic is needed.
Date: August 1984
Creator: Fernandez, Peter, 1961-
Partner: UNT Libraries

Appearance or Function: Factors Related to the Likeability of Handicapped Individuals

Description: Descriptions of obesity, cerebral palsy, and scoliosis were rank-ordered (from one to twenty) and rated on a five-point scale by 75 college students. The descriptions were of two types: with the appearance of an individual on five levels of severity of a disorder and with the appearance and level of functioning of an individual on five levels of severity of a disorder. The ranking data indicated males rank-ordered descriptions of obese individuals different from cerebral palsy (p < 0.01) and scoliosis (p < 0.05) . The ratings of the descriptions were analyzed in two studies with 2 x 2 x 2 x 5 ANOVA's. Three-way interactions of the level of severity, complexity of description, and type of disorder rated were discussed in terms of likeability of handicapped individuals .
Date: May 1983
Creator: Dawson-Black, Patricia A. (Patricia Ann)
Partner: UNT Libraries

Attrition in Longitudinal Studies Using Older Adults: A Meta-Analysis

Description: Longitudinal methods have become an improved and essential means of measuring intra-individual change over time. Yet one of the greatest and most hazardous drawbacks studying participants over multiple sessions can be the loss of participants over time. This study attempts to illuminate the problem of attrition in longitudinal research by estimating the mean effect sizes for participant loss across 57 studies published in 13 prestigious journals which regularly use older participants. Results estimate overall attrition to be around 34% of the original sample. The subsequent break down of attrition into its subtypes yield mean effect sizes for attrition due to Refusal (8%), Loss of contact (10%), Illness (6%), and Death (14%) in studies sampling from adults 50 years or older. Analyses were then conducted via meta-analytic one-way ANOVA and weighted regression to identify possible moderators of overall attrition and their four subtypes.
Date: December 2005
Creator: Rhodes, Anthony Ryan
Partner: UNT Libraries

The Interpersonal Communication Inventory: a Measure of Social Skills

Description: The Interpersonal Communication Inventory, a self-report instrument for assessing social skills, was given to undergraduate college students to determine its reliability. Following this administration, other small groups of undergraduates were asked to complete an attraction scale, the Interpersonal Communication Inventory, an assertiveness scale, and a sociometric questionnaire. Results confirmed the Inventory as a reliable instrument, but a stepwise multiple linear regression did not support the hypothesis that the Inventory was a useful predictor of sociometric choice. In addition, Pearson product moment correlations between the Inventory and an assertiveness scale did not confirm the prediction that the two instruments would measure behaviors from different response classes. Definite conclusions could not be stated due to lack of validity data for the Inventory and possible confounding variables.
Date: December 1981
Creator: Armstrong, Betty K.
Partner: UNT Libraries

The Effect of Monetary Reward and Knowledge of Results on Complex-Choice Reaction Times

Description: This investigation was designed to determine relative effects of monetary reward and knowledge of results on complex-choice reaction time tasks. Subjects were twenty-five male and thirty-two female undergraduate students. Apparatus consisted of nine stimulus lights and eight response keys. Subjects were required to add the number of lights presented, subtract the sum from a constant, and press the correctly numbered response key. Reward subjects received twenty-five cents for responses faster than a predetermined criterion, and twenty-five cents was deducted for slower responses. Knowledge of results subjects were told their reaction times after each trial. Results indicated (1) no significant differences between any conditions, (2) a significant overall practice effect (.01 level), and (3) that males were significantly faster than females (.01 level).
Date: May 1975
Creator: Davies, Terry Barnett
Partner: UNT Libraries

Effect of Nucleus Circularis and Lateral Preoptic Lesions on Osmotically Induced Drinking

Description: The area most widely associated with osmoreception has been the lateral preoptic nucleus. However, Hatton (1976) proposed that the nucleus circularis could be the actual osmoreceptor in the hypothalamus. The present study supported Hatton by using 30 rats which were randomly assigned to sham, lateral preoptic, and nucleus circularis lesion groups. After a 2-week post-operative period, half of each group was injected with isotonic saline while the other half was injected with hypertonic saline. Water consumption was measured at 10-minute intervals for one hour. Following a 4-day recovery period, the injection procedure was reversed. Analysis of difference scores, computed by subtracting the amount of water consumed after isotonic injection from the amount of water consumed after hypertonic injection, revealed a significant difference between the nucleus circularis group and the other two groups.
Date: August 1982
Creator: Wallace, Forrest Layne
Partner: UNT Libraries

Learned Helplessness: The Result of the Uncontrollability of Reinforcement or the Result of the Uncontrollability of Aversive Stimuli?

Description: This research demonstrates that experience with uncontrollable reinforcement, here defined as continuous non-contingent positive feedback to solution attempts of insoluble problems, fails to produce the proactive interference phenomenon, learned helplessness, while uncontrollable aversive events, here defined as negative feedback to solution attempts of insoluble problems, produces that phenomenon. These results partially support the "learned helplessness" hypothesis of Seligman (1975) which predicts that experience with uncontrollable reinforcement, the offset of negative events or the onset of positive ones, results in learning that responding is independent of reinforcement and that learning transfers to subsequent situations. This research further demonstrates that experience with controllability, here defined as solubility, results in enhanced competence.
Date: August 1975
Creator: Benson, James S.
Partner: UNT Libraries

The Influence of Transcendental Meditation on Anxiety

Description: This study was concerned with the degree to which the practice of transcendental meditation (TM) aids in the long-term reduction of anxiety. The Taylor Manifest Anxiety Scale (TMAS), short form, was given to 16 Ss about to learn the technique of TM and to 16 control Ss. Eighteen weeks later, the TMAS was again administered to both groups. A significant difference was found in TMAS score reduction between the two groups, with the meditation group showing the greater reduction. These findings lend support to the hypothesis that TM aids in the long-term reduction of anxiety. It is recommended that further research in this area be undertaken to further validate the results of this study.
Date: December 1974
Creator: Floyd, William T., III
Partner: UNT Libraries

Is Mind Wandering the Mechanism Responsible for Life Stress Induced Impairments in Working Memory Capacity?

Description: The relationship between life stress and working memory capacity (WMC) has been documented in college students and older adults. It has been proposed that intrusive thoughts about life stress are the mechanism responsible for the impairments seen in WMC. To examine the mechanism responsible for these impairments the current study attempted to induce intrusive thoughts about personal events. The current study allowed for a test of predictions made by two theories of mind wandering regarding the impact of these intrusive thoughts on WMC task performance. One hundred fifty undergraduates were assigned to a control group, positive event group, or negative event group. Participants in the positive and negative event groups completed a short emotional disclosure about an imagined future positive or negative event, respectively, to induce positive or negative intrusive thoughts. WMC measures were completed prior to and following the emotional writing. Results indicated a significant relationship between WMC and mind wandering, however the writing manipulation did not result in any consistent changes in intrusive thoughts or WMC. The results suggest a causal relationship between WMC and mind wandering. The emotional valence of the intrusive thought altered the impact on WMC. No relationship was seen between the measures of stress and WMC. The results of the current study suggest that negative intrusive thoughts result in impaired WMC task performance but other types of off-task thoughts may not result in similar impairments.
Date: August 2011
Creator: Banks, Jonathan Britten
Partner: UNT Libraries

Terror Management Theory and Body Image

Description: Research has not explicitly examined the link between key components of terror management theory (TMT) and body image without the use of mortality salience. This project explored the link between cultural worldview, self-esteem, body image, and death anxiety. Multiple measures were used to create a structural equation model examining relationships between body image and death anxiety as mediated by body image in the context of TMT. The proposed model did not fit the data. Minor modifications were made to the model keeping within the proposed theoretical perspective. In the modified model the relationships between cultural worldview and death anxiety as mediated by body image were either non-existent or weak. Hierarchical regression analyses did suggest that some aspects of body image indeed did predict some, but not all dimension of death anxiety in this sample of young adults.
Date: December 2011
Creator: Fish, Joshua Stephen Andrus
Partner: UNT Libraries