DXM is not simply a dissociative. It is also a psychedelic, unlike other dissociatives. So, in theory, increased pupil dilation may help the visual cortex produce enhanced visuals. I find Methylphenidate causes synergy with DXM as well.
DXM is is not classified as a hallucinogen. LSD is. Like I said, psychedelic is a descriptive term which is applied to many substances which are not technically hallucinogens, such as amanita muscaria or sativa cannabis (cannabis used to be classified as a hallucinogen but is now in its own class, 'cannabinoids').
Hallicinogens include the families of psychedelics, dissociatives, and delirants.





