Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/25174
Title: | The Amount and Direction of Change of Background Noise as a Conditioned Stimulus |
Authors: | Hilton, Anthony |
Advisor: | Kamin, Leon |
Department: | Psychology |
Keywords: | background noise;direction of change;conditioned stimulus |
Publication Date: | May-1964 |
Abstract: | This thesis is concerned with intensity characteristics of conditioned stimuli in acquisition of a conditioned emotional response (CER) in rats. A comparison was made of CSs which differed (between groups) with respect to amount and direction of change in white noise from a constant background stimulation level. The measure of conditioning was the degree to which the CS disrupted ongoing, food-motivated, bar-pressing activity. The major findings were (1) that rate of conditioning was a monotonic increasing function of amount of intensity change in either direction; and (2) an increase in noise intensity from background X to CS Y produced more rapid acquisition of the CER than did a decrease from background Y to CS X. (3) During pretests, a noise increase produced a small, but reliable, Increase in rate of bar-pressing, while a noise decrease produced a slight suppression. |
URI: | http://hdl.handle.net/11375/25174 |
Appears in Collections: | Digitized Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Hilton_Anthony_1964May_masters.pdf.pdf | 6.69 MB | Adobe PDF | View/Open |
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