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Doctoral Dissertations

Theses/Dissertations

1995

Psychology

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The Nation-State And Its Ideology: A Study Of School Children's Views Of Nationalism, Politics, And Enmity, Linda June Olson Jan 1995

The Nation-State And Its Ideology: A Study Of School Children's Views Of Nationalism, Politics, And Enmity, Linda June Olson

Doctoral Dissertations

This dissertation explores the reproduction and ideological legitimization of the nation-state in the eyes of successive generations. There are two components to this study. The first is a socio-historical analysis of the formation of nation-state ideology, a formation which seems to necessitate creation of "in-groups" and "out-groups." It is a socio-historical analysis of victimization, of the tendency to justify colonialism, expansionism, imperialism, and brutality to outsiders.

The second component of this study is concerned with how the ideology of the nation-state regarding nationalism, patriotism, and especially classification of enemy groups, is reproduced and legitimized for future generations. For this purpose, …


Differentiating Between Delay Dependent And Delay Independent Deficits Following Medial Thalamic Lesions And Prefrontal Cortical Lesions In The Rat, Alexander Alden Stevens Jan 1995

Differentiating Between Delay Dependent And Delay Independent Deficits Following Medial Thalamic Lesions And Prefrontal Cortical Lesions In The Rat, Alexander Alden Stevens

Doctoral Dissertations

Twenty-four male rats were pretrained on a two-choice, auditory match to position (AMTP) task and randomly assigned to one of three treatment groups: radio-frequency lesions of either the medial wall (MW) of prefrontal cortex; lesions of the lateral internal medullary lamina site (LIML) of thalamus; or sham surgical control (CON).

Both lesion groups exhibited significant impairment on initial post-surgical testing of discrimination trials in the AMTP task. However, the MW group showed partial recovery with extensive retraining. In contrast, the LIML lesion group remained impaired throughout post-surgical discrimination testing. Neither the MW or the LIML group showed signs of more …


Molar And Local Effects Of The Fixed-Ratio Changeover Requirement On Choice, Changeovers, And Visits: A Parametric Examination Of The Fixed-Ratio Changeover Requirement, Michael B. Ehlert Jan 1995

Molar And Local Effects Of The Fixed-Ratio Changeover Requirement On Choice, Changeovers, And Visits: A Parametric Examination Of The Fixed-Ratio Changeover Requirement, Michael B. Ehlert

Doctoral Dissertations

The distribution of behavior by organisms in choice situations is of long-standing interest to psychologists. The generalized matching relation accurately predicts choice between concurrent variable-interval schedules of reinforcement. Researchers have assumed, on weak grounds, that the effect of the changeover requirement on sensitivity to reinforcement--the exponent in the generalized matching equation--was consistent. This experiment considered the effects of the changeover requirement by parametrically manipulating the fixed-ratio schedule required to switch alternatives. Pigeons pecked either of two side-response keys in a standard three-key operant chamber for food, delivered according to independent variable-interval schedules. No changeover delay was used, instead completion of …


Temporal Context And Choice, Randolph Carey Grace Jan 1995

Temporal Context And Choice, Randolph Carey Grace

Doctoral Dissertations

An extension of the generalized matching law is proposed as a model for choice in concurrent chains. The contextual choice model (CCM) assumes that effects of temporal context on choice are determined by the relative times spent in the terminal and initial links (Tt/Ti), and that terminal-link value is independent of temporal context. CCM gives an excellent description of a wide range of archival data, and because it simplifies to the generalized matching law when terminal-link duration is zero, provides a quantitative integration of concurrent chains and concurrent schedules. A series of experiments with pigeons as subjects is described to …