gaussian

 element objects

A Gaussian blob.

▸ Object ends on its own?

"Ends on its own" means ends automatically at that point. If an element can end on its own, you don't need to set end conditions for it in property end (unless you want it to maybe end earlier).

No—runs until any condition you set in property end.

Input properties
Record properties
gaussian
elements (see below)

sigma
size
color

All visual elements
position
depth

nn_eyes
rotation
flipHorz
flipVert

colorMask
alpha
intensity
contrastMult
convolution
shader
filterOrder
filterGrayscale
filterResolutionMult
filterGamma

channelResolution
backColor
addDisplay

All visual elements
position

All adjuster elements have
adjust

All elements
start
end

startBuffer
endBuffer

vary
staircase

All objects
report
info

sigma

Default: 0.75 deg

Standard deviation of the Gaussian (deg). You can also use a vector <cd>[s_x s_y]<cd> for an asymmetric Gaussian.

size

Default: 6 × sigma

Sets a finite display area for the Gaussian. Generally this just needs to be big enough that the Gaussian doesn't look clipped at its edges. Typically you can leave it at default = 6 × whatever sigma is above. If you set it, it can be a number that is side length for a square, or a vector [width height] for a rectangle (deg).

color

Default: white

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

Adjustable properties

You can vary or allow the subject to adjust the following properties of an object of this type when it's running. If you need to make other properties adjustable, you can edit the element type code—see Element Type Programming Manual.

Adjustable properties

Adjustable properties

position
nn_eyes
rotation
colorMask
alpha
intensity
contrastMult
drawCodeVars

(None)

(None)

Input properties
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.

gaussian
elements (see below)

All elements
startTime
endTime
duration
n_startFrame
n_endFrame
startLatencyBufferable
endLatencyBufferable