Description of Research Expertise:
I study human cortical organization for vision, and how this organization is altered by neurologic and ophthalmologic disease. Human visual cortex is composed of early, “retinotopically” organized visual areas, as well as more specialized, “categorical” areas that process specific visual features (such as facial appearance). My work has varied along two dimensions within this research space: scale and perturbation. I have examined the organization of visual cortex from its large-scale, anatomical arrangement to the precise and subtle form of population neural coding for object features. These studies at different scales of cortical organization have further been conducted both in healthy controls as well as in patients for whom visual function has been perturbed by retinal disease or cerebral dysfunction. I make use of a variety of scientific techniques, although the majority of my research uses BOLD fMRI, which is a non-invasive measure of neural activity in human participants.
Cideciyan Artur V, Aguirre Geoffrey K, Jacobson Samuel G, Butt Omar H, Schwartz Sharon B, Swider Malgorzata, Roman Alejandro J, Sadigh Sam: Pseudo-fovea formation after gene therapy for RPE65-LCA. Investigative ophthalmology & visual science 56 (1): 526-37,2015.
Butt Omar H, Benson Noah C, Datta Ritobrato: Hierarchical and homotopic correlations of spontaneous neural activity within the visual cortex of the sighted and blind. Frontiers in human neuroscience 9 : 25,2015.
Persichetti Andrew S, Aguirre Geoffrey K: Value Is in the Eye of the Beholder: Early Visual Cortex Codes Monetary Value of Objects during a Diverted Attention Task. Journal of cognitive neuroscience : 1-9,2014.
Spitschan Manuel, Jain Sandeep, Brainard David H: Opponent melanopsin and S-cone signals in the human pupillary light response. Proceedings of the National Academy of Sciences of the United States of America 111 (43): 15568-72,2014.
Cucchiara Brett, Datta Ritobrato, Aguirre Geoffrey K, Idoko Kimberly E: Measurement of visual sensitivity in migraine: Validation of two scales and correlation with visual cortex activation. Cephalalgia : an international journal of headache : 2014.
Benson Noah C, Butt Omar H, Brainard David H: Correction of distortion in flattened representations of the cortical surface allows prediction of v1-v3 functional organization from anatomy. PLoS computational biology 10 (3): e1003538,2014.
Datta Ritobrato, Aguirre Geoffrey K, Hu Siyuan, Detre John A: Interictal cortical hyperresponsiveness in migraine is directly related to the presence of aura. Cephalalgia 33 (6): 365-74,2013.
Butt Omar H, Benson Noah C, Datta Ritobrato: The fine-scale functional correlation of striate cortex in sighted and blind people. The Journal of Neuroscience 33 (41): 16209-19,2013.
Cucchiara Brett, Wolf Ronald L, Nagae Lidia, Zhang Quan, Kasner Scott, Datta Ritobrato, Aguirre Geoffrey K: Migraine with aura is associated with an incomplete circle of willis: results of a prospective observational study. PloS one 8 (7): e71007,2013.
Benson Noah C, Butt Omar H, Datta Ritobrato, Radoeva Petya D, Brainard David H: The retinotopic organization of striate cortex is well predicted by surface topology. Current biology 22 (21): 2081-5,2012.
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