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Temporal Response Of The Human Visual System To Suprathreshold Luminance And Opponent Colour Contrast Gratings, Melanie Bucking
Temporal Response Of The Human Visual System To Suprathreshold Luminance And Opponent Colour Contrast Gratings, Melanie Bucking
Theses and Dissertations (Comprehensive)
The goal of the present study was to characterize the temporal processing of both suprathreshold luminance and opponent-colour defined contrast in the human visual system. We used a detection task in five experiments; following a 900 Hz, 2-cycle tone, observers were presented with a sinusoidal grating stimulus. The interval separating the waming tone and the presentation of the grating was manipulated to determine the influences of attentional dwell time in a cross-modal task. This theory states that the first of two successive events will interfere with the processing of the second event. In all four luminance experiments the gratings were …
The Effect Of Delta-9-Tetrahydrocannabinol (Thc) On Lithium-Induced Sickness Reactions In Both Rats (Rattus Norvegicus) And The House Musk Shrew (Suncus Murinus), Stephen W.P. Kemp
The Effect Of Delta-9-Tetrahydrocannabinol (Thc) On Lithium-Induced Sickness Reactions In Both Rats (Rattus Norvegicus) And The House Musk Shrew (Suncus Murinus), Stephen W.P. Kemp
Theses and Dissertations (Comprehensive)
The following experiments examined the ability of delta-9-tetrahydrocannabinol (THC) to attenuate lithium induced sickness in both the nonemetic rat (Rattus norvegicus) and the emetic house musk shrew (Suncus murinus). The ability of THC to attenuate the expression of previously established lithium induced conditioned sickness behavior in Suncus was also examined. Although unconditioned sickness behavior was displayed by both rats and shrews, THC did not attenuate this behavior in either species. However, THC did attenuate conditioned retching in the Suncus murinus. These results are the first to show the attenuation of conditioned sickness in Suncus by THC. They also experimentally verify …
Sensitization To Indirect And Direct Dopamine Agonists: Behavioural Differences In Wheel Running, Vanhthong Vilaysinh
Sensitization To Indirect And Direct Dopamine Agonists: Behavioural Differences In Wheel Running, Vanhthong Vilaysinh
Theses and Dissertations (Comprehensive)
Five experiments examined the effects of repeated exposure to stimulants, largely apomorphine (APO), on wheel running in male Sprague-Dawley rats. In these experiments, minor changes in procedure resulted in profound differences in the effects of APO on wheel running. Experiment 1 I compared changes in wheel running after repeated injections of 3.0 mg/kg amphetamine (AMP), 5.0 mg/kg of APO or vehicle (VEH). AMP resulted in a suppression in wheel running which become more pronounced over trials, while running in APO animals remained similar to the VEH group. Testing provided support for a conditioned suppression of wheel running rats previously treated …
The Effect Of Delta9-Tetrahydrocannabinol (Thc) On The Establishment And The Expression Of Place Conditioning (Rattus Norvegicus), Robert Ernest Sorge
The Effect Of Delta9-Tetrahydrocannabinol (Thc) On The Establishment And The Expression Of Place Conditioning (Rattus Norvegicus), Robert Ernest Sorge
Theses and Dissertations (Comprehensive)
The place conditioning paradigm has been used to assess the antinausea potential of drugs in non-emetic animal species. The present experiments were designed to determine the potential of A9-tetrahydrocannabinol (THC) to alleviate both conditioned and unconditioned sickness in rats (Rattus norvegiens). The results in the present study suggest that when the place aversion is strong (Experiment 1), THC may interfere with the establishment; however when the aversion is weak (Experiments 2 and 3), THC may interfere with the expression. Also, when administered during acquisition of a strong amphetamine-induced place preference, THC also seems to interfere with the establishment of the …
Exploring The Inequalities Between Men And Women In Relation To Marriage: A Feminist Analysis Of Women In Social Work's Experiences Of Marriage, Natalie Mccormac
Exploring The Inequalities Between Men And Women In Relation To Marriage: A Feminist Analysis Of Women In Social Work's Experiences Of Marriage, Natalie Mccormac
Theses and Dissertations (Comprehensive)
In this thesis I explore the inequalities between men and women in relation to marriage and the impact ofexternal pressures on women and their choices within their marriages. I interviewed five married women and one woman in a common-law relationship about the story of their marriage. I used narrative analysis to interpret the verbatim transcriptions of each interview. In the findings I present portions of each woman’s story in her words along with my own interpretative comments. The findings indicated that women are experiencing indirect pressure from extemal sources within regard to their individual choices and their choices within their …
'Love The Sinner, Hate The Sin': Reality Or Fiction?, Scott G. Veenvliet
'Love The Sinner, Hate The Sin': Reality Or Fiction?, Scott G. Veenvliet
Theses and Dissertations (Comprehensive)
Do religious individuals “love the sinner, but hate the sin?” More specifically, is relatively higher intrinsic religious orientation linked to tolerant attitudes toward gays and lesbians, yet condemnation of homosexual behaviour? There have been conflicting conclusions within the relevant literature in answering this question (Batson, Floyd, Meyer, & Winner, 1999; Fisher, Derison, Polley III, Cadman, & Johnston, 1994; Fulton, Gorsuch, & Maynard, 1999). 169 undergraduate students completed several scales measuring religious orientation, church teaching of “love the sinner, hate the sin," and scales measuring attitude toward both homosexual people and homosexual behaviour. Intrinsic religion was associated with relatively less tolerance …
The Effects Of Misleading Information And Group Discussion On Eyewitness Testimony, Matthew A. Cook
The Effects Of Misleading Information And Group Discussion On Eyewitness Testimony, Matthew A. Cook
Theses and Dissertations (Comprehensive)
The purpose of the present studies was to assess the separate and interactive effects of misinformation and group discussion on eyewitness testimony. In Experiments 1and 2, participants viewed a short video of a simulated robbery and shooting, and were then presented with either neutral or misleading information that was embedded in forced-choice questionnaires in a recognition test. Participants were subsequently randomly assigned to a group-recognition or individual-recognition condition. Groups were instructed to answer questions about details of the video (in Experiment 1 they were instructed to try to reach consensus), while individuals completed the recognition task on their own. Finally, …
Timing Differences: The Modality Effect And Filled Interval Illusion With Rats And Pigeons, Andrew Miki
Timing Differences: The Modality Effect And Filled Interval Illusion With Rats And Pigeons, Andrew Miki
Theses and Dissertations (Comprehensive)
The theoretical implications of the Scalar Timing Theory (STT) and the Mixed Memory Model were used as a paradigm to investigate the effects of stimulus properties on the psychological representation of time. Experiment 1 failed to demonstrate a Modality Effect in two sets of psychophysical tests using filled and empty intervals. Experiment 2 provided no evidence for a Filled Interval Illusion but the results from the acquisition phase and psychophysical tests indicated that, on some trials, rats forgot the presentation of the first marker of an empty interval. In Experiment 3, an Empty Interval Illusion was reliably demonstrated in three …
A Model Of Volunteer Progression: Supporting And Sustaining Volunteerism In A Primary Prevention Project, Nicole L. Kenton
A Model Of Volunteer Progression: Supporting And Sustaining Volunteerism In A Primary Prevention Project, Nicole L. Kenton
Theses and Dissertations (Comprehensive)
This study examined the developmental progression of volunteers involved in a community development project and the role of factors on various ecological levels (individual, familial, project and community) that impede and support this progression. In-depth interviews were completed using a narrative approach with a total of 11 individuals who were volunteers (n=5), staff members (n=4) and individuals who were once volunteers who later became frontline staff members (n=2) at the Highfield Community Enrichment Project. This project is one of the several Better Beginnings, Better Future program sites implemented in Ontario. Volunteer participants were asked to tell a story about their …
A Qualitative Study Of Presently And Formerly Homeless Female Adolescents (Ontario), Allison J. Rice Roberts
A Qualitative Study Of Presently And Formerly Homeless Female Adolescents (Ontario), Allison J. Rice Roberts
Theses and Dissertations (Comprehensive)
Very little research has been carried out with young homeless females in Canada. Therefore, the following study investigated homeless in the Kitchener-Waterloo Region, in two age groups of female adolescents from two different types of settings, a youth drop in centre and a female youth shelter. One sample of 8 female youth was between the ages of 14-19 and was presently homeless. The other sample was an older group of 5 individuals between the ages of 19-27, who had experienced homelessness in their earlier adolescent years. A semi-structured, open-ended interview was carried out with these 13 females. The interview was …
Acculturation Of Missionaries: Religious Orientation, Coping And Adjustment, Geoffrey S. Navara
Acculturation Of Missionaries: Religious Orientation, Coping And Adjustment, Geoffrey S. Navara
Theses and Dissertations (Comprehensive)
The focus of the present study was the acculturation process of missionaries residing in foreign countries. Combining two theoretical frameworks (religious orientations and sojourner acculturation), the study explored the relationship between the stress/adjustment model of acculturation and religious orientations. Seventy-six missionaries, posted overseas for at least one year, completed several measures, including measures of religious orientation, perceived stress, religious coping, adjustment and anxiety. It was found that quest and immanent religious orientations were negatively correlated with perceived stress while positively correlated with posting satisfaction. Intrinsic religious orientation was found to be negatively correlated with both measures of anxiety and depression. …
Conscious, Deliberate, And Purposeful Living: Lessons From The Adult Daughters Of Psychiatrized Women, Jody Lee Brown
Conscious, Deliberate, And Purposeful Living: Lessons From The Adult Daughters Of Psychiatrized Women, Jody Lee Brown
Theses and Dissertations (Comprehensive)
The following document details the intellectual and emotional journey I embarked on when I chose to cross the subject-object divide by exploring a phenomenon with which I had direct lived experience. Incorporating feminist multiple interviewing techniques, participatory action learning. and critical autobiography. I sought to examine what it means to be the adult daughter of a woman who has been labelled and treated by the psychiatric profession (i.e., who has been psychiatrized). I begin with an exploration of the “phenomenon” as it is presented in the literature. To orient the reader I offer a description of what I believe are …
The Relationship Between Student Involvement And Adjustment To The Transition To University, Amber Michelle Filiatrault
The Relationship Between Student Involvement And Adjustment To The Transition To University, Amber Michelle Filiatrault
Theses and Dissertations (Comprehensive)
The study reported in this paper examined the relationship between involvement in extracurricular academic and community activities and students’ adjustment to the transition to university. The study also sought to identify the underlying motivational factors that influence students’ decisions to get involved in these kinds of activities. Participants were 90 first-year undergraduate university students (59 females, 31 males) with a mean age of 19.4 years (SD=.98), participating in mass testing sessions conducted at WLU with introductory psychology classes. Participants were asked to complete a questionnaire containing measures designed to assess various aspects of involvement and adjustment. These included a background …
Errors In Pigeons' Memory For Number: Effects Of Iti And Di Illumination, Christopher W. Hope
Errors In Pigeons' Memory For Number: Effects Of Iti And Di Illumination, Christopher W. Hope
Theses and Dissertations (Comprehensive)
In Experiment 1 all pigeons were trained to discriminate 2 flashes of hopper light in 4 sec from 8 flashes in 4 sec, at a 0 sec delay. One group of pigeons experienced dark lTl’s (Group Dark) while the other experienced an illuminated lTl (Group Light). All birds were then tested with dark delays of 0, 5, 10, 15, and 20 sec. Analysis showed a significant bias to respond to the comparison correct for small at extended delays, with no difference between groups. In Experiment 2 training was identical to that in Experiment l except that a 5 sec baseline …