A snake wiggle of reaction time functions to indicate holistic perception
College of Liberal Arts and Sciences
Social and Behavioral Sciences
We analyzed the underlying fundamental processes engaged in forming holistic perceptual representations. The subjects participated in a face categorization task over multiple sessions. We applied the systems factorial technology (SFT) to analyze the properties of the observed response time (RT) distributions. The key statistic was a survivor interaction contrast function (SIC). Over the course of extensive practice, the observed SICs exhibited a specific pattern of shape transformations that could be described as a "snake wiggle". The observed SIC signature indicated that the processing mechanism behind holistic perception relies on strong positive facilitation between feature detectors, within the parallel mental network. The converging evidence is provided by the additional qualitative RT test (Fific, Little & Nosofsky, 2010).
37th Euorpian Conference on Visual Perception
Fific, Mario and Little, Daniel R., "A snake wiggle of reaction time functions to indicate holistic perception" (2015). Faculty Scholarly Dissemination Grants. 609.