Medicine and Health Sciences Commons^™

Impact Of Luminance And Spatial Parameters On The Generation Of The Human Pattern Electroretinogram., Kate A. Godwin

Electronic Theses and Dissertations

The current work assessed some of the key hypotheses behind the generation of the pattern electroretinogram (PERG) response. The first of these hypotheses states that the PERG response is the result of linear cancellation of simultaneous increment and decrement retinal responses, as generated by the retinal ON- and OFF-pathways. Experiment 1 evaluated the possibility of simulating the PERG by summing the ERG responses elicited by increment and decrement flashes, and found that it was indeed possible to simulate the PERG from these responses. However, only the steady-state PERG could be modeled consistently. The second hypothesis evaluated a theory that the …

The Relationship Between Traumatic Events And Psychological Symptomatology And The Moderating Role Of Mentalization, Sean Fowler

Electronic Theses and Dissertations

Traumatic events can lead to a number of disparate psychological responses. Ranging from diagnosable psychological symptomatology to little or no distress, the outcomes of potentially traumatic events are difficult to narrow down. Research on individual differences has indicated the potential for a number of characteristics that influence the relationship between traumatic events and psychological well-being. Some researchers have proposed that one of these factors, an individual’s ability to mentalize, can influence the onset of psychological symptoms after a traumatic event. Mentalization is seen as one’s ability to maintain a sense of self, which enables understanding and differentiating between one’s own …

Improving The Inference Of Some Experiemtal Studies By Using Ranked Auxiliary Covariates, Rajai Jabrah

Electronic Theses and Dissertations

In many studies, the measurement of sampling units according to the response variable is costly or time consuming, however, it is possible to rank sampling units according to baseline auxiliary covariates, which are available, easily obtainable, and cost efficient. In these cases, when estimating the population mean, Ranked Set Sampling (RSS) can be a more efficient sampling method than the Simple Random Sampling (SRS) method. In this dissertation, we propose a modified approach of the RSS method to allocate units into an experimental study, aimed to compare two or more groups.

Ranked auxiliary covariates, which are typically correlated with the …