The proportion of signal elements embedded in noise needed to detect a signal is a standard tool for investigating motion perception. This paradigm was applied to the shape domain to determine how local information is pooled into a global percept. Stimulus arrays consisted of oriented Gabor elements that sampled the circumference of concentric radial frequency (RF) patterns. Individual Gabors were oriented tangentially to the shape (signal) or randomly (noise).
- signal elements
- motion perception
- vision sciences
Schmidtmann, G., Gordon, G., Bennett, D., & Loffler, G. (2013). Detecting shapes in noise: tuning characteristics of global shape mechanisms. Frontiers in Computational Neuroscience, 7(37), [PMC3655279]. https://doi.org/10.3389/fncom.2013.00037