However , the neurochemical basis of psilocybin 's effects on the perception of time are not known with certainty .
These results are consistent with the drug 's role in affecting prefrontal cortex activity , and the role that the prefrontal cortex is known to play in time perception .
The neurochemical basis of psilocybin 's effects on the perception of time are not known with certainty .
These results are consistent with the drug 's role in affecting prefrontal cortex activity , and the role that the prefrontal cortex is known to play in time perception .