"Selective stimulation of penumbral cones reveals perception in the shadow of retinal blood vessels" – Online Supplemental Material

Selective stimulation of penumbral cones reveals perception in the shadow of retinal blood vessels (Spitschan, Aguirre & Brainard, 2015)

Online Supplemental Material

Data are provided as CSV (comma separated value) text files with column headers.

RawExperimentalData.csv – The trial-by-trial data from the main and supplemental rating experiments. Each row corresponds to one trial.

Column 1 – Experiment (Main or Supplemental)
Column 2 – Observer (DHB, GKA, or MS)
Column 3 – Spectral direction of the modulation
L+M – open-field L and M cones
L*+M* – penumbral L and M cones
L+M+L*+M* – open-field and penumbral L and M cones modulated together
S – open-field S cones
S* – penumbral S cones
S+S* – open-field and penumbral S cones
Melanopsin A – Melanopsin A modulation
Melanopsin B – Melanopsin B modulation
Background – no modulation presented (blank trial)
Column 4 – Temporal frequency (Hz)
Column 5 – Rating (0-3 scale)

Spectra_DHB.csv, Spectra_GKA.csv, Spectra_MS.csv – Background and modulation spectra used for each of the three observers in the main and supplemental rating experiments.

Column 1 – Wavelength in nm
Column 2 – Background spectrum (Watts/[m2-sr-wavelength band])
Columns 3 onward – Positive swing of modulation spectrum for each modulation (Watts/[m2-sr-wavelength band]). Column headers identify modulation using same key as column 3 of the data file described above.

Spectra_Sketch.csv – Backgound and modulation spectrum viewed by the naive observer who sketched her percepts.

Column 1 – Wavelength in nm
Column 2 – Background spectrum (Watts/[m2-sr-wavelength band])
Column 3 – Positive swing of modulation spectrum (Watts/[m2-sr-wavelength band])