Symmetrical texture repetition

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Grass by Chelsea Morgan - This image serves as accurate portrayal of the commonly experienced psychedelic effect known as Symmetrical texture repetition.

Symmetrical texture repetition can be described as the perception of textures becoming mirrored repeatedly over their own surface in an intricate and symmetrical fashion that is consistent across itself. This maintains the same level of detail no matter how closely one attempts to look at the distortion and tends to remain most prominent within one's peripheral vision. It usually manifests itself through rough textures such as grass, carpets, asphalt, tarmac, towels, rugs, gravel, general bracken, dense vegetation, fallen leaves, tree bark and more.

During this state, if one stares at a fixed point, the Symmetrical texture repetition may progressively increase and further tesselate into more complex forms. However, this progression of complexity will usually reset back to baseline as soon as one double takes.

The experience of this effect is nearly universal under the influence of serotonergic psychedelics such as LSD, 2C-B and psilocin. The symmetrical forms it induces are also often complemented by the simultaneous experience of pattern recognition enhancement, resulting in the appearance of a huge array of abstract forms, imagery and patterns embedded within and across the symmetry.

Analysis

This animation serves as a demonstration of how symmetrical texture repetition can be accurately reproduced by simply symmetrically mirroring rough textures across themselves.

It is worth noting that to accurately replicate the appearance of this effect through the use of image editing software, all one needs to is simply mirror a texture across itself in a symmetrical manner. This may suggest that a similar process is occurring within the brain, perhaps by filling in missing details by taking visual data from within one's central line of sight and mirroring it across the peripheral in a manner which results in a symmetrical tessellation of the texture.

Image examples

Psychoactive substances

Compounds within our psychoactive substance index which may cause this effect include:


Experience reports

Anecdotal reports which describe this effect within our experience index include:

See also