Social and Behavioral Sciences Commons^™

Test For A Learned Drinking Response : Support For Appetitive Preparedness, Brian L. West

Master's Theses

Seligman, Ives, Ames and Mineka (1970a) have suggested that by the nature of the stimulus-response association in appetitive states a prepared mechanism using "mild" deprivation cues exists which will activate an appetitional resolution. Pairing of a neutral stimulus with this prepared mechanism results in a conditioned stimulus capable of electing the drinking response. Contrary to this hypothesis, Mowrer (1956) posited that a water deprived state induces an emotional reaction or "thirst fear." It is assumed that reduction of this stimulus may be accomplished by means of alleviating the deprived state. A conditioned external stimulus can therefore elicit the drinking response …

A Conditioning Model For The Mccollough Effect, Andreas D. Lord

Dissertations and Theses

A model based on the laws of classical conditioning is posed as an explanation for the McCollough Effect, an orientation-specific color aftereffect. This model stands as an alternative to the color-coded edge detector hypothesis. Background and relevant issues are presented. Two experiments were performed. The first demonstrated that an auditory stimulus causes the effect to appear stronger to some subjects, a disinhibiting effect. It was also shown that some subjects experience spontaneous recovery of the effect after it has been extinguished.

The second experiment demonstrated that the after-colors will generalize to lines of varying orientation, including 45°. Subjects adapted to …

Exteroceptive Influence On A Marihuana Induced Conditioned Taste Aversion, Albert William Greenwood

Dissertations and Theses

Forty-five male, Sprague Dawley rats were used to determine if external stimuli could influence the length of a conditioned taste aversion. Animals were given a novel taste (sucrose), and then injected with one of three different substances, marihuana, LiCI, or saline. The animals were then placed into either a stimulation condition, a non-stimulation condition, or returned to the home cage. The stimulation condition contained aversive stimuli in the form of bright, flashing lights and loud noises. The other conditions had no aversive stimulation. It was expected that the animals receiving injections of marihuana would have an increase in their responsiveness …

Sodium Phenobarbital In Prevention Of Electroconvulsive Shock-Induced Disruption Of Taste-Illness Association, Stuart W. Reynolds

Electronic Theses & Dissertations

Male Holtzman rats injected with a toxic solution of lithium chloride (US) 30 minutes after drinking saccharin flavored water (CS) learned to avoid that taste upon subsequent encounter. Electroconvulsive shock (ECS) interpolated temporarily between the pairing of a novel taste (CS) and an induced gustatory illness (US) prevents the taste from being associated with the illness (Kral, 1971). The purpose of the present experiment was to determine if sodium phenobarbital pretreatment would protect the association of taste with illness, against the normally interfering effects of ECS in the interpolated intervention paradigm. This question was investigated with a 2 (sodium phenobarbital …