The detection of feature singletons defined in two dimensions is based on salience summation, rather than on serial exhaustive or interactive race architectures

Attention, Perception & Psychophysics
Michael ZehetleitnerHermann J Müller

Abstract

Influential models of visual search assume that dimension-specific feature contrast signals are summed into a master saliency map in a coactive fashion. The main source of evidence for coactivation models, and against parallel race models, is violations of the race model inequality (RMI; Miller, 1982) by redundantly defined singleton feature targets. However, RMI violations do not rule out serial exhaustive (Townsend & Nozawa, 1997) or interactive race (Mordkoff & Yantis, 1991) architectures. These alternatives were tested in two experiments. In Experiment 1, we used a double-factorial design with singleton targets defined in two dimensions and at two levels of intensity, to distinguish between serial versus parallel models and self-terminating versus exhaustive stopping rules. In Experiment 2, we manipulated contingency benefits that are expected to affect the magnitude of redundancy gains and/or RMI violations on the assumption of an interactive race. The results of both experiments revealed redundancy gains as well as violations of the RMI, but the data pattern excluded serial-exhaustive and interactive race models as possible explanations for RMI violations. This result supports saliency summation (coactivation) models of s...Continue Reading

Citations

Jan 5, 2010·Journal of Cognitive Neuroscience·Thomas TöllnerHermann J Müller
Feb 2, 2011·PloS One·Thomas TöllnerHermann J Müller
Feb 6, 2013·PloS One·Michael ZehetleitnerHermann Joseph Müller
Jan 26, 2011·Attention, Perception & Psychophysics·Michael ZehetleitnerHermann J Müller
May 3, 2011·Attention, Perception & Psychophysics·Leo Poom
Sep 11, 2013·Behavior Research Methods·Joseph W HouptJames T Townsend
Dec 11, 2013·Attention, Perception & Psychophysics·Harriet GoschyMichael Zehetleitner
May 13, 2015·Memory & Cognition·Andrew HeathcoteDavid L Strayer
Jun 29, 2010·Acta Psychologica·Hermann J MüllerJoseph Krummenacher
Mar 26, 2015·Frontiers in Human Neuroscience·Michael ZehetleitnerHermann J Müller
Jan 8, 2015·Frontiers in Psychology·Ju-Chi YuCheng-Ta Yang
Sep 18, 2020·Cognitive Research: Principles and Implications·Cheng-Ju HsiehCheng-Ta Yang

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