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dc.contributor.advisorVolbrecht, Vicki J.
dc.contributor.advisorNerger, Janice L.
dc.contributor.authorPfohl, Melissa
dc.contributor.committeememberLaybourn, Paul
dc.contributor.committeememberDelosh, Edward
dc.date.accessioned2007-01-03T08:11:25Z
dc.date.available2007-01-03T08:11:25Z
dc.date.issued2012
dc.description2012 Summer.
dc.descriptionIncludes bibliographical references.
dc.description.abstractColor vision deficiencies, both congenital and acquired, are well documented. Acquired color vision deficiencies can arise from a variety of systemic and ocular problems. Previous research has shown that modulation of hormone levels leads to changes in visual perception. Pregnancy involves predictable increases in hormone levels, so this study examined how naturally occurring changes in endogenous levels of steroid hormones during pregnancy may affect color perception and visual acuity. Color vision testing was conducted at regular time intervals over the duration of pregnancy for 6 women as well as a control group of non-pregnant, non-contraceptive using women. As levels of hormones increased over the course of pregnancy, error scores were predicted to increase, indicating increasing losses in color perception. No significant differences were found between pregnant and control participants for any of the color vision tests conducted across any of the time periods tested; however, four of the pregnant participants did show increases in error scores in the shorter wavelengths as time elapsed. The lack of significant differences could indicate that there are compensatory mechanisms for the body to adjust to increasing levels of endogenous hormones from pregnancy. This study has opened up myriad possibilities for future research examining the relationship of hormones and neurosteroids and their effects on color vision.
dc.format.mediumborn digital
dc.format.mediumdoctoral dissertations
dc.identifierPfohl_colostate_0053A_11263.pdf
dc.identifierETDF2012400350PSYC
dc.identifier.urihttp://hdl.handle.net/10217/68195
dc.languageEnglish
dc.publisherColorado State University. Libraries
dc.relation.ispartof2000-2019 - CSU Theses and Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.subjectcolor vision
dc.subjectpregnancy
dc.titleColor vision during pregnancy
dc.typeText
dcterms.rights.dplaThe copyright and related rights status of this item has not been evaluated (https://rightsstatements.org/vocab/CNE/1.0/). Please refer to the organization that has made the Item available for more information.
thesis.degree.disciplinePsychology
thesis.degree.grantorColorado State University
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy (Ph.D.)


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