Tunneling

Tunnelling can be described as a visual distortion which manifests spontaneously for temporary periods of time. Once manifested, it partially to completely alters the appearance of one's external environment into an all-encompassing tunnel of varying intensities. This experience results in the apparition of a large 3-dimensional tunnel in front of one's current field of vision.

File:Inner Speaker (Album art) by Leif Podhajsky.gif

Album art by Leif Podhajsky for Innerspeaker by Tame Impala. This image serves as an accurate replication of visual tunnelling manifesting over a natural landscape.

In terms of its appearance, the tunnel can vary in its size, distance, orientation and colour. It is usually either comprised from the sensory data of one's vision, a single randomly chosen colour or a combination of many randomly chosen colours.

See also

• Subjective effects index
• Psychedelics - Subjective effects
• Dissociatives - Subjective effects
• Deliriants - Subjective effects