Psychology Commons^™

Effects Of Music As A Conditioned Stimulus And Progressive Muscle Relaxation In Reducing Anxiety, Marie Elaine Clarkson

Masters Theses

The primary purpose of this study was to determine whether music could become a conditioned stimulus for lowered muscle tension and/or reduced anxiety.

There were three groups: (1) the PMR group receiving PMR alone, (2) the MUS group receiving music alone, and (3) the PMRM group receiving PMR followed by music. After four training sessions, a posttest was conducted in which all of the groups were given five minutes to relax. The PMR group had silence, the MUS group had music and the PMRM group had music which had previously been heard after relaxation training. Tension and anxiety reduction were …

Sequences Of Fixed-Ratio Schedules Of Reinforcement: The Effect Of Ratio Size In The Second And Third Fixed-Ratio On Pigeons' Choice, Susan Goeters

Dissertations

The present study used a discrete-trials procedure to examine choice in pigeons presented with various three-component sequences of fixed-ratio schedules of reinforcement. An experimenter-controlled stimulus was correlated with each sequence and pigeons were presented with a specified number of forced-exposure and choice trials. Three phases were implemented in an effort to investigate the conditions under which fixed-ratios other than the first in a sequence of three affect choice. In Phase 1, pigeons were given a choice between a fixed-ratio X fixed-ratio 1 fixed-ratio 25 and a fixed-ratio X fixed-ratio 25 fixed-ratio 1 sequence of food delivery. Across conditions, X was …

Nonidentity Matching Training As A Supplement To The Audio-Visual Combination Test, Melissa Wilson

Masters Theses

The Audio-Visual Combination Test is an assessment tool developed by Kerr, Meyerson, and Flora (1977), and used by those working with developmentally disabled persons to assess learning-to-learn skills. The test measures motor, visual, and auditory discrimination learning.

The experimenter attempted to determine if there were an important step-visual nonidentity discrimination-between AVC subtests 4 and 5/6 of the test. Twelve developmentally disabled adults were tested with three different sets of tasks interposed between a revised subtest 4 and 5/6. Results showed that most subjects had greater difficulty with the visual nonidentity discrimination than with the auditory/visual discrimination, subtest 5/6. The results …

The Effects Of Mephenytoin On Schedule-Controlled Responding In The Pigeon, Victoria Mary Pellettiere

Masters Theses

Acute and chronic effects of mephenytoin (30 - 360 mg/kg) were examined in pigeons responding under a multiple fixed-ratio 50 fixed-interval 90-sec schedule of food delivery. The highest dose administered acutely (240 mg/kg) produced substantial reductions in rate of responding under both components of the multiple schedule; the effects of other doses were small and inconsistent. Tolerance appeared to develop to the rate-decreasing effects of mephenytoin following chronic exposure to the drag.

The Effects Of A Conditioned Establishing Operation On Performance Of A Two-Component Chain, Kenneth Lee Alling

Masters Theses

Subjects were exposed to a discrete-trial procedure in which reinforcement following the completion of a two-component response chain was dependent upon the presence or absence of the houselight. The procedure used closely resembles the hypothetical procedure suggested by Michael (1982) for developing control by a conditioned establishing operation. All subjects came to respond differentially in the presence and absence of the houselight. However, removal of the supposed conditioned reinforcer following completion of the first component of the response chain had little effect on control by the houselight, casting some doubt on Michael's (1982) theoretical analysis.

Effects Of Phenobarbital In Combination With Phenytoin Or Valproic Acid On The Delayed-Matching-To-Sample Performance Of Pigeons, Catherine Ann Karas

Masters Theses

The present study examined the effects of phenobarbital (S, 10,20, and 40 mg/kg), phenytoin (2.5, 5, 7.5, and 15 mg/kg), and valproic acid (40, 60, 80, and 120 mg/kg), and those of phenobarbital (10 and 20 mg/kg) in combination with phenytoin (2.5,5, and 7.5 mg/kg) or valproic acid (40, 60, and 80 mg/kg), on the delayed-matching-to-sample performance of pigeons. In general, high doses of each individual drug reduced accuracy. Drug combinations also reduced accuracy relative to control values. Reductions in accuracy produced by drug combinations were very similar in magnitude to those predicted by a response-addition model of drug interaction.