BilZ0r said:
Really? Are they? Do you have a citation?
Perhaps "play a role" was a better term than "released"

Out of interest, this is from TOXINZ, our National Poisons Centre database here in NZ, on hallucinogenic amphetamines:
MECHANISM OF ACTION
Indirect sympathomimetic action through:
The inhibition of presynaptic vesicular storage and catecholamine reuptake
The reduction of catecholamine metabolism, via monoamine oxidase inhibition[88]
A stimulating effect on several central cortical centres including the:
Cerebral cortex
Medullary respiratory centre
Reticular activating system
Direct action on both alpha- and beta-adrenoreceptors
Hallucinogenic activity is thought to be due to:
Stimulation of serotonin and dopamine receptors in the CNS[89]
Methoxylation and methylenedioxylation of the catechol ring (metabolism of mescaline-like attachment that is present in hallucinogenic amphetamines)[90]
[88] Schmidt CJ, Wu L, Lovenberg W. Methylenedioxymethamphetamine: a potentially neurotoxic amphetamine analogue. Eur J Pharmacol 1986; 124: 175-8.
[89] Trulson ME, Crisp T, Henderson LJ. Mescaline elicits behavioral effects in cats by an action at both serotonin and dopamine receptors. Eur J Pharmacol 1983; 96: 151-4.
[90] Schmidt CJ. Acute administration of methylenedioxymethamphetamine: comparison with the neurochemical effects of its N-desmethyl and N-ethyl analogs. Eur J Pharmacol 1987; 81-8.