Visual processing deceleration
Visual processing deceleration is defined as the perceived reduction in speed at which visual information is processed. While under the influence of this effect one may feel as if their vision is lagging and displaying in a manner similar to a buffering video, a stop-motion animation, film strip, a computer monitor, or a strobe light. At higher levels of intensity, it can result in a person's vision temporarily ceasing to move all together as if it has frozen. It is also worth noting that this effect is comparable but not necessarily related to the visual disorder known as motion blindness or akinetopsia. This effect can be experienced as a smooth and consistent deceleration of visual processing or can be rough and irregular.
Frame rate suppression is often accompanied by other coinciding effects such as visual acuity suppression and double vision. It is most commonly induced under the influence of moderate dosages of dissociative compounds, such as ketamine, MXE, PCP, and DXM.
Compounds within our psychoactive substance index which may cause this effect include:
Annectdotal reports which describe this effect with our experience index include:
- Experience: 300mg DXM (Oral) - Brink of the third
- Experience:260 mg Ketamine (insufflated) - Lost in Paisley
- Experience:535mg - My First DXM Trip
- Responsible use
- Subjective effects index
- Psychedelics - Subjective effects
- Dissociatives - Subjective effects
- Deliriants - Subjective effects
- Erowid DXM Vaults : The DXM Stop Motion Effect (“Strobing” or ’Flanging’)
- Zeki, S. (1991). "CEREBRAL AKINETOPSIA (VISUAL MOTION BLINDNESS)". Brain. 114 (2): 811–824. doi:10.1093/brain/114.2.811. ISSN 0006-8950.