modelfree (version 1.2)

Miranda_Henson: Detection of a flash of light

Description

A flash of light of variable intensity was presented repeatedly at a fixed location in the visual field of a subject who reported whether the flash was visible. There were 3–20 trials at each stimulus level. See https://personalpages.manchester.ac.uk/staff/david.foster/software-modelfree/latest/examples/example01R.html

Usage

data("Miranda_Henson")

Format

A data frame with 10 rows and 3 columns.

x

stimulus level

r

number of successes

m

number of trials

References

Miranda, M. A. & Henson, D. B. “Perimetric sensitivity and response variability in glaucoma with single-stimulus automated perimetry and multiple-stimulus perimetry with verbal feedback”, Acta Ophthalmologica, 86, 202-206, 2008.

Examples

data("Miranda_Henson")
x = Miranda_Henson$x
r = Miranda_Henson$r
m = Miranda_Henson$m
plot( x, r / m, xlim = c( 0.1, 1.302 ), ylim = c( 0.0165, 0.965 ), type = "p", pch="*" )