Papers by Frederick Kingdom
Vision Research, Feb 1, 1999
Journal of Vision, Jul 25, 2013
Scientific Reports, Feb 7, 2019
Vision Research, Dec 1, 2001
Attention Perception & Psychophysics, May 1, 2001
Journal of Vision, Jun 13, 2018
Journal of the Optical Society of America, May 1, 2001
Attention Perception & Psychophysics, Dec 1, 1988
Elsevier eBooks, 2016
Signal Detection Theory, or SDT, is probably the most important and influential theoretical frame... more Signal Detection Theory, or SDT, is probably the most important and influential theoretical framework for modeling how perceptual decisions are made in forced-choice tasks. Its central concept is that perceptual decisions are based on a stochastic or probabilistic representation of stimuli inside the brain. The chapter introduces the basic concept of SDT, explains why SDT measures are a useful addition to the psychophysics armory, provides practical details for modeling data using SDT, and explains the theoretical basis of SDT in relation to a range of tasks: 1AFC, 2AFC, M -AFC, same-different, match-to-sample, and oddity. A unique contribution to the SDT literature is the description of how SDT models can be fit to psychometric functions of proportion correct as a function of stimulus intensity, in order to estimate important parameters such as the exponent on the transducer function.
Journal of Vision, Mar 16, 2010
Vision Research, Mar 1, 2006
Elsevier eBooks, 2016
This chapter introduces psychophysics as a methodology, discusses the aims of the book, outlines ... more This chapter introduces psychophysics as a methodology, discusses the aims of the book, outlines how the book is organized, and summarizes its contents. The discussion of aims focuses on the need for a book that provides both the theoretical background and practical tools necessary for analyzing data from psychophysics experiments and the importance of making accessible to both newcomers and seasoned practitioners alike difficult psychophysical concepts and analyses. For the practical tools the chapter introduces the reader to Palamedes, the toolbox of MATLAB software developed by the authors for psychophysical data analysis.
Journal of the Optical Society of America, 2001
Journal of Vision, Dec 5, 2022
Elsevier eBooks, 2016
The question of how multiple stimuli combine to reach threshold is one of the most enduring quest... more The question of how multiple stimuli combine to reach threshold is one of the most enduring questions in sensory science. This chapter examines the “summation question” via an in-depth treatment of two of the most influential models of summation: additive summation and probability summation. The two models are each considered within two frameworks for modeling summation, Signal Detection Theory and High-Threshold Theory, the former, it is argued, being the favored framework. The chapter provides a step-by-step exposition of the mathematical basis of both types of summation within both types of framework, in a manner that will hopefully be accessible to the mathematical nonexpert. One of the overall aims of the chapter is to provide readers with both the theoretical and practical tools necessary to go about deciding which of the two summation models gives the best account of their data.
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Papers by Frederick Kingdom