Variants of independence in the perception of facial identity and expression

Journal of Experimental Psychology. Human Perception and Performance
Daniel Fitousi, Michael J Wenger

Abstract

A prominent theory in the face perception literature--the parallel-route hypothesis (Bruce & Young, 1986)--assumes a dedicated channel for the processing of identity that is separate and independent from the channel(s) in which nonidentity information is processed (e.g., expression, eye gaze). The current work subjected this assumption to experimental tests from the perspective of three characterizations of independence and separability: Garner's speeded classification task (Garner, 1974), general recognition theory (Ashby & Townsend, 1986), and systems factorial technology (Townsend & Nozawa, 1995). The goals of the study were to (a) provide converging evidence on validity of the parallel-route hypothesis, and (b) understand the relationships between various definitions of independence and separability. The results of the current work demonstrated that identity and expression are not completely independent, using data from all three perspectives. Consequently, a modification of the central assumption of the parallel-route hypothesis is required. In addition, the intricate but orderly relationships between various types of separability and independence have implications for theories of perceptual independence.

Citations

May 11, 2013·Attention, Perception & Psychophysics·Daniel Fitousi
Oct 24, 2013·Experimental Psychology·Daniel Fitousi
Mar 31, 2015·Cognition·Fabian A Soto, F Gregory Ashby
Mar 31, 2015·Frontiers in Psychology·Karen Lander, Natalie Butcher
Dec 3, 2014·Frontiers in Human Neuroscience·Alla YankouskayaPia Rotshtein
Jun 2, 2016·Psychonomic Bulletin & Review·Devin M Burns
Dec 12, 2019·Frontiers in Psychology·Jinhui LiXianyou He

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