Doctor of Philosophy (PhD)
First Advisor's Name
First Advisor's Committee Title
Second Advisor's Name
Second Advisor's Committee Title
Third Advisor's Name
Third Advisor's Committee Title
Fourth Advisor's Name
Fourth Advisor's Committee Title
vision, plasticity, development, sensitivity, acuity, contrast, motion perception, drosophila, fly, insect
Date of Defense
In this dissertation we explore the morphological and neural plasticity underlying vision at different scales—within and between species of Drosophila—to elucidate the role of eye development in the evolution of vision. In chapter 2, we offer a tool to accelerate large-scale research into compound eye morphology, and validate it on the eyes of several insect orders and image media. Then, in chapter 3 we demonstrate the developmental plasticity of eye morphology and neural summation in fruit flies, finding an interesting interplay between the two systems. In chapter 4, we elucidate the role of visual plasticity and neural summation in the evolution of vision by comparing vinegar and desert flies. Finally, in chapter 5, we show how future and ongoing work is diving into the mechanisms underlying this visual plasticity by measuring the effect of early temperature, exploring regional differences across the visual field, and detecting light-induced circadian activity.
Previously Published In
for chapter 2:
Currea, John P., Yash Sondhi, Akito Y. Kawahara, and Jamie Theobald. “Measuring Compound Eye Optics with Microscope and MicroCT Images.” BioRxiv, January 28, 2021, 2020.12.11.422154. https://doi.org/10.1101/2020.12.11.422154.
for chapter 3:
Currea, John P., Joshua L. Smith, and Jamie C. Theobald. “Small Fruit Flies Sacrifice Temporal Acuity to Maintain Contrast Sensitivity.” Vision Research 149 (August 2018): 1–8. https://doi.org/10.1016/j.visres.2018.05.007.
Currea, John Paul, "The Developmental Plasticity of Fruit Fly Vision" (2021). FIU Electronic Theses and Dissertations. 4728.
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).