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Temporal Dynamics Of Human Emotional Response To Aversive Stimuli, Joseph Lawence Kempel

Graduate Research Theses & Dissertations

Emotions are an integral part of human expression and are often communicated nonverbally through behavioral actions. With advancements in electroencephalography (EEG) technology it is now possible to measure the dynamics of emotion generation in an individual on the basis of patterns in their brain activity. This thesis aims to model the temporal dynamics of human emotion generation upon exposure to aversive stimuli and measure the effect of external distractions as a viable emotion regulation strategy.

This research builds on previous work in the literature that has shown that the ability of humans to regulate their emotions intrinsically (based on their …

The Effects Of Punishment On Resistance To Change And Reinstatement, Tomesha A. Manora

Dissertations

Resistance to change (RTC) refers to the persistence of behavior when environmental changes disrupt responding. Studies have shown that RTC varies as a function of the reinforcement associated with the context, with higher rates and magnitudes of reinforcement generating greater response persistence. Resistance to change has been shown to be related to reinstatement, or the increase in responding during extinction when responses are followed by noncontingent reinforcement. Little research has investigated whether punishers have equivalent yet opposite effects as reinforcers on response persistence and reinstatement. The present study investigated the effects of electric shock punishment on resistance to change and …

Effects Of Ancient And Modern, Avoidant And Approach Stimuli On Visual Search Task Reaction Times, Sanja Bojic

Theses : Honours

The threat superiority effect refers to faster and more accurate detection of fearful stimuli. This has been explained as evidence for evolution, as ancient fearful stimuli are detected more quickly than modern fearful stimuli. The aim of this study was to investigate which of two alternate evolutionary explanations best explains the findings. Whereas Ohman and Mineka (2001) dealt only with avoidant responses, Lang suggested that stimuli may evoke either an avoidant (fearful) or approach response, associated with negative or positive valence, respectively. The experiment employed a same-different task where Age (ancient, modern), and Valence (approach, avoidant, neutral) were manipulated and …

The Effect Of Partial Hepatectomy On The Strength Of A Conditioned Taste Aversion: A Parametric Study, Christopher Adam Duva

Theses Digitization Project

No abstract provided.

The Effect Of Locus Of Conditioning On The Taste Potentiation Of Non-Gustatory Food Cues, Silvia Von Kluge

Theses Digitization Project

No abstract provided.

The Effect Of Early Handling On The Sexually Dimorphic Rate Of Extinction Of A Conditioned Taste Aversion In Rats, Rebecca Lee Yoder

Dissertations and Theses

Male rats have been found to extinguish a conditioned taste aversion slower than females. It has also been found that female rats that have been "handled" (i.e., exposed to daily brief isolation from siblings and mother) during the preweaning period extinguish a taste aversion faster than nonhandled females. The present study sought to combine and extend these findings by testing handled and nonhandled females and males in a conditioned taste aversion under the methodological conditions used in the sex difference research.

The Effect Of Novelty And Familiarity On The Conditioning Of Learned Aversions To Gustatory And Nongustatory Stimuli In Coyotes (Canis Latrans), William Eric Swanson

Theses Digitization Project

No abstract provided.

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 …