Color Science Seminar - Representation of the McCollough Effect in Early Visual Cortex

Representation of the McCollough Effect in Early Visual Cortex

Dr. Katherine Tregillus
Postdoctoral Researcher, Vision & Imaging Lab
University of Minnesota

Abstract:
The McCollough Effect is a visual illusion produced by viewing colored, oriented patterns resulting in orientation-contingent color afterimages that can endure for weeks or months. Despite the large amount of work done on the McCollough Effect, the neural loci and mechanisms producing it remain under debate. Using an altered-reality paradigm to produce an especially large McCollough Effect, we measured the induced aftereffect with fMRI. Preliminary results indicate that patterns of neural activity in early visual cortex reflect the presence of the illusory colors.

Speaker Bio:
Dr. Katherine Tregillus received her PhD in Psychology, Cognitive and Brain Sciences from the University of Reno, Nevada, advised by Dr. Michael Webster. She is currently a Postdoctoral Researcher in the Vision & Imaging Lab at the University of Minnesota, working with Dr. Stephen A. Engel.

 

Program of Color Science and AdvanceRIT special guest speaker!


Contact
Michael Murdoch



Event Snapshot
When and Where
Wednesday, December 4, 2019
11:00 AM-12:00 PM
Munsell Color Science Laboratory
Room/Location:
1080
Who

Open to the Public

Interpreter Requested

No

Topics
experiential learning
interdisciplinary studies
partnerships
research
science
STEM