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The Effect of Monetary Reward and Knowledge of Results on Complex-Choice Reaction Times (open access)

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

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
System: The UNT Digital Library
Localization of Color Discrimination in the Human Cerebral Cortex (open access)

Localization of Color Discrimination in the Human Cerebral Cortex

This study investigated color discrimination as a possible localized function of right or left cerebral hemispheres in humans. Previous studies have shown conflicting results. Studies implicating the left hemisphere have contaminated color discrimination with verbal-symbolic ability. Other studies implicating the right hemisphere emphasized color-matching ability. This study pointed out the importance of response latency as well as accuracy and also the importance of testing the data for meeting the assumptions of the statistical technique utilized. It was concluded that color discrimination is normally a right-hemisphere function in right-handed individuals. Differences in individual ability, although large, were not found to be systematically related to sex or eye dominance, but may be learned individual differences. The study further pointed out the inappropriateness of referring to a major or dominant cerebral hemisphere without stipulating which function is being considered.
Date: August 1975
Creator: Pennal, Billy E.
System: The UNT Digital Library
A Comparison of Paranoid Schizophrenics and Schizo-Affective, Depressed Type Schizophrenics, Utilizing Gittinger's Personality Assessment System (open access)

A Comparison of Paranoid Schizophrenics and Schizo-Affective, Depressed Type Schizophrenics, Utilizing Gittinger's Personality Assessment System

This study hypothesized that paranoid schizophrenia and schizo-affective, depressed type schizophrenia could be differentiated by the Internalizer-Externalizer, Regulated- Flexible, and Role Uniform-Role Adaptable dimensions of the Personality Assessment System. The Personality Assessment System methodology utilizes the Wechsler Adult Intelligence Scale to measure these dimensions. All hypotheses were statistically confirmed. The difficulty of applying the Personality Assessment System to psychopathological regressive states is cited. Recommendations include utilizing the Personality Assessment System with other groups in the institutional setting and within diagnostic categories.
Date: August 1975
Creator: Harlan, Teresa A.
System: The UNT Digital Library
Accelerated EMG Biofeedback Relaxation Training and Tension Headache: The Effects of Home Practice and Headache Presence During Training (open access)

Accelerated EMG Biofeedback Relaxation Training and Tension Headache: The Effects of Home Practice and Headache Presence During Training

This study investigated the value of headache presence during elecromyographic (EMG) feedback relaxation training and the contribution made by home relaxation practice in the elimination of tension headache. Eighteen participants, mainly coeds in their twenties, recorded headache and medication data for two baseline weeks, and were assigned to one of three training groups. Group A received EMG feedback training with headache presence during the session and home relaxation practice. Group B received EMG feedback without headache Presence and home practice. Group C received only home relaxation practice. Statistically significant treatment differences were not found, but declining trends of headache activity and medication use tend to support the efficacy of EMG training with headache presence.
Date: August 1975
Creator: Christianson, James D. L.
System: The UNT Digital Library
Some Basic Precursors of Learning Disabilities: The Maternal Deprivation Syndrome and the Failure-to-Thrive Syndrome (open access)

Some Basic Precursors of Learning Disabilities: The Maternal Deprivation Syndrome and the Failure-to-Thrive Syndrome

It is hypothesized in this study that children reared with "concerned" mothers (N) will display significantly superior intellectual performance and less neurological impairment as compared with children reared with neglectful mothers (MN) and children diagnosed as failure to thrive (FTT, falling below the third percentile in height and weight). The FTT children will show significantly more deficits than both N and MN groups. The participants in this study were forty-five children rigidly matched on all possible variables. F-tests and Newman-Keuls' analyses reveal severe intellectual deficits in both MN and FTT groups. The FTT group displayed significantly more neurological deficits lending support for a nutritional basis of this syndrome as opposed to the traditional psychogenic explanation.
Date: May 1975
Creator: Muse, William C.
System: The UNT Digital Library
A Comparison of Anxiety Levels of Partially Sighted and Totally Blind Adults (open access)

A Comparison of Anxiety Levels of Partially Sighted and Totally Blind Adults

Anxiety levels of partially sighted were compared with totally blind people. Using the Anxiety Scale for the Blind, the primary hypothesis tested was that the partially sighted would manifest more anxiety than would the totally blind. The study was designed to ascertain whether the primary hypothesis would hold within the structure of this study, and to obtain information useful in future anxiety studies of the visually handicapped. A residential center for the blind furnished subjects, facilities, and biographical data. The primary hypothesis lacked statistical significance at the .05 level as did comparisons of anxiety levels by age, sex, economic need, and age at onset. The use of a different instrument may be indicated for future studies.
Date: August 1975
Creator: Zeagler, Arnold M.
System: The UNT Digital Library
Regulation of the Frequency of Part-Word Repetitions Using Electromyographic Feedback (open access)

Regulation of the Frequency of Part-Word Repetitions Using Electromyographic Feedback

This study investigated the use of electromyographic feedback in regulating the frequency of part-word repetitions. Two adult stutterers, one female (Subject A) and one male (Subject B) were employed. The frequency of part-word repetitions during baserate, EMG uV raising, and EMG uV lowering conditions was assessed for Subject B. As hypothesized, results indicate that there was a notable decline in the frequency of part-word repetitions during the EMG uV lowering sessions. However, contrary to the second hypothesis, (i.e. that an increase in EMG uV would correspond with an increase in part-word repetitions) there was also a decline in the frequency of part-word repetitions during the EMG raising sessions.
Date: December 1975
Creator: Pachman, Joseph S.
System: The UNT Digital Library
The Preliminary Development of a Sentence Completion Inventory to Assess Psychologically Unhealthy Religious Beliefs (open access)

The Preliminary Development of a Sentence Completion Inventory to Assess Psychologically Unhealthy Religious Beliefs

To assess psychologically unhealthy Protestant beliefs a Religious Sentence Completion Inventory (RSCI), and scoring Manual, were developed from a pilot study. In the main study 103 undergraduate students were subjects. Interscorer reliability for the RSCI was .83. Results revealed significant positive correlations between the RSCI, and maladjustment validity criteria: a Minnesota Multiphasic Personality Inventory (MMPI) total weighted score; and MPI clinical scales 1, 2, 3, 4, 6, 7, and 8; but not validity scale F; for females. Only MMPI scale 6 correlated with the RSCI for males. These data appear to partially support the proposition that whether Protestant beliefs hinder or do not hinder mental health depends upon the particular kind of beliefs a Protestant holds.
Date: May 1975
Creator: Gardiner, Joseph R. (Joseph Rowe)
System: The UNT Digital Library