fixationGrid

 elements

A grid of concentric circles and diagonal lines intended to stabilize fixation. As used in Tyler, C.W. et al. (2005). Extended Concepts of Occipital Retinotopy.

For any trial you define in an experiment script, you can make one or more 

fixationGrid

 objects using function 

fixationGrid

Object and input them to addTrial.

For any trial you define in an experiment script, you can make one or more 

fixationGrid

 objects using function 

fixationGrid

Object and input them to addTrial.

Input properties

Adjustable properties

You can allow the subject to adjust the following input properties of an object of this type during the experiment using an adjuster element. If you need to make other properties adjustable, you can copy the element type using newPbType and edit it.

nn_eyes
rotation
opacity

position
nn_eyes
rotation
opacity

(None)

(None)

size

Default: fill screen

Square size of the grid (deg). This determines how many circles you see and the length of the diagonal lines. <cd>inf<cd> = fill screen (at any position, not necessarily centered on screen).

innerRadius

Default: 1 deg

Radius of innermost circle (deg)

radiusIncrement

Default: 6 deg

Distance between concentric outer circles (deg).

lineWidth

Default: 0.05 deg

Line width (deg).

color

Default: 50% grey

A 1×3 RGB vector with numbers between 0–1.

Input properties all visual elements have

position

Input properties all adjuster elements have

adjust

Input properties all objects have

report
info

Record properties

PsychBench uses record properties to record information during experiments. You can't set record properties but you can see them in experiment results using input property report.