Re: VisionScienceList: Psychophysical method ?

From: Tim Meese (t.s.meese@aston.ac.uk)
Date: Tue Dec 19 2000 - 09:24:18 PST

  • Next message: Andrew Watson: "Re: VisionScienceList: Psychophysical method ?"

    Dear Seb - there is a large literature on psychophysical methods (involving
    monte carlo simulations and the like), though most of it is on staircases
    and maximum liklihood methods rather than MCS because the main aim has been
    to figure out what the most efficient way of measuring a psychometric
    function is. There are a couple of papers that I know of that have looked
    at MCS; they are:

    Watt and Andrews (1981) Current Psychological Reviews, 1, 205-214; (This is
    a kind of adaptive version of MCS)

    and

    Watson and Fitzhugh (1990) Perception and Psychophysics, 47, 87-91; (This
    is a rebuttal of Simpson (1988) who claimed that MCS was efficient).

    If you are interested I can send you a copy of one of my own papers that
    shows, contrary to widespread belief at the time, that a standard staircase
    can be nearly as effecient as more sophisticated methods. The paper is for
    a 'one-up one-down' stairacse suitable for measuring a PSE, though further
    unpublished simulations found similar results for staircase configurations
    suitable for measuring detection thresholds. The paper does not address MCS.

    best wishes

    Tim Meese

    -------------------------------------------------
    Dr Tim Meese
    Neurosciences Research Institute
    Vision Sciences
    Aston University
    Aston Triangle
    Birmingham
    B4 7ET UK

    Voice: +44 (0)121 359 3611 X5421
    Fax: +44 (0)121 333 4220
    e-mail: t.s.meese@aston.ac.uk

    http://www.vs.aston.ac.uk/Staff/TMeese.html
    http://www.vs.aston.ac.uk/Research/research.html
    --------------------------------------------------



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