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Graduate Theses, Dissertations, and Problem Reports

Theses/Dissertations

2002

Experimental psychology

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Variables Affecting Compliance Of Pigeons, Adam H. Doughty Dec 2002

Variables Affecting Compliance Of Pigeons, Adam H. Doughty

Graduate Theses, Dissertations, and Problem Reports

Pigeons served in experiments modeling compliance techniques studied by applied behavior analysts and social psychologists. A discrete-trial procedure operated in each experiment. In baseline, each trial consisted of a single key color, and in test conditions, each trial consisted of a sequence of key colors. Across experiments, there were either two or three trial types in baseline. When there were two, one color was correlated with a low fixed ratio (FR) on half the trials, and on the other trials a second color was correlated with another schedule that differed across experiments. Food was delivered on most of the low-FR …


Effects Of D -Amphetamine And Morphine On Behavior Maintained By Fixed -Interval Schedules, Jennifer L. Johnson May 2002

Effects Of D -Amphetamine And Morphine On Behavior Maintained By Fixed -Interval Schedules, Jennifer L. Johnson

Graduate Theses, Dissertations, and Problem Reports

The present experiments tested the effects of d-amphetamine and morphine on pigeons' responding during conventional and clocked FI schedules of food reinforcement. The first experiment compared performance between FI 5-min and continuously clocked FI 5-min components of a multiple schedule in which the rate of the houselight flashing increased in a continuous manner. The second experiment examined the differences between keypecking maintained by FI 5-min, response-dependent clocked FI 5-min, and response-independent clocked FI 5-min components of a multiple schedule. In the response-dependent clocked FI component, each peck produced a stimulus change that was correlated with the passage of time, while …


Effects Of Familiar Versus Unfamiliar Therapists On Responding In The Analog Functional Analysis, Carie Lynn English May 2002

Effects Of Familiar Versus Unfamiliar Therapists On Responding In The Analog Functional Analysis, Carie Lynn English

Graduate Theses, Dissertations, and Problem Reports

The analog functional analysis involves the manipulation of pre-determined antecedent and consequent events and typically is conducted by trained experimenters. Research has evaluated the effects of including a broader range of antecedent variables in the analog. Inclusion of caregivers is one potential antecedent that may alter problem behavior. The purpose of this study was to evaluate the effects of including caregivers in the analog. Four individuals with developmental disabilities and their caregivers served as participants. The differential effects of caregivers and experimenters as therapists were evaluated. For 3 of 4 participants, different patterns of responding were observed when caregivers versus …


Effects Of Morphine, D-Amphetamine, And Food Deprivation On Temporally Organized Behavior, Todd William Knealing May 2002

Effects Of Morphine, D-Amphetamine, And Food Deprivation On Temporally Organized Behavior, Todd William Knealing

Graduate Theses, Dissertations, and Problem Reports

Two experiments examined the effects of morphine and d-amphetamine on behavior that was temporally organized under several schedule arrangements. Two body weights were assessed for each experiment. Experiment 1 made use of fixed-interval (FI) schedules, the peak procedure, and a two-key (free-operant psychophysical) procedure. Indexes of timing performance under each of these schedules were assessed and compared. Timing indexes were decreased by both drugs in the two-key procedure, but were not reliably altered in the peak procedure. Both drugs produced clear rate-dependent effects on behavior in both procedures. In Experiment 2, FI performance was assessed both alone and with a …


Effects Of Intertrial Interval And D-Amphetamine On Temporally Organized Behavior Of Pigeons, Lori Marie Lieving May 2002

Effects Of Intertrial Interval And D-Amphetamine On Temporally Organized Behavior Of Pigeons, Lori Marie Lieving

Graduate Theses, Dissertations, and Problem Reports

The present experiment examined the effects of intertrial interval and d-amphetamine on pecking of pigeons maintained by an interval bisection task. The side-tracking group responded based on the location of the key and the color-tracking group responded based on the color of the key. Intermediate stimulus durations were tested, separated by either a 10- or 100-s intertrial interval and a range of d-amphetamine doses and saline were administered. Acquisition of performance in the side-tracking group occurred in fewer sessions relative to the color-tracking group. In both groups, the proportion of long responses increased as a function of stimulus duration. These …