Publications by authors named "W O Geisler"
We assessed neutralizing antibody responses in a well-characterized cohort of 60 women with different Chlamydia trachomatis infection outcomes noted at a treatment visit and 3-month follow-up. We found varying rates of neutralization (inhibition of C. trachomatis) in sera at different dilution levels and varying neutralizing antibody titers across outcomes.
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- Visual search is a key ability for humans and animals, and the study explored how humans decide when scanning briefly shown displays with distinct potential target locations.
- Compared to the Bayesian-optimal decision process, humans surprisingly performed slightly better, despite having less sensitivity in their central vision (foveal neglect).
- The research identified three reasons for this: simple decision rules can lead to near-optimal performance, foveal neglect mainly impacts the center target, and neural noise can enhance search performance beyond what is expected from independently operating signals.
MicroRNAs in Chlamydia trachomatis (CT) and Chlamydia muridarum (CM) infections are an emerging topic of research that provide knowledge that could advance vaccine development and strategies for managing infection. This rapid review summarizes human and murine studies on miRNA expression in CT and CM infections in vivo and ex vivo.
View Article and Find Full Text PDFVisual detection is a fundamental natural task. Detection becomes more challenging as the similarity between the target and the background in which it is embedded increases, a phenomenon termed 'similarity masking'. To test the hypothesis that V1 contributes to similarity masking, we used voltage sensitive dye imaging (VSDI) to measure V1 population responses while macaque monkeys performed a detection task under varying levels of target-background similarity.
View Article and Find Full Text PDFBackground: Chlamydia trachomatis testing and treatment strategies have not decreased infection rates, justifying need for a chlamydia vaccine. A murine study showed that a vaccine consisting of major outer membrane protein (MOMP) and polymorphic membrane proteins (Pmps) E, F, G, and H elicited protective immunity; studies on human cellular immune responses to Pmps are sparse.
Methods: Interferon gamma (IFN-γ) responses to these 5 proteins were measured by ELISPOT in peripheral blood mononuclear cells from women returning for treatment of a positive chlamydia test.