Amanita floccocephala and brunnescens Quest?

[Stephen R. Berlant]

I was wondering if anyone could tell me whether A. floccocephala and/or A. 
brunnescens could possibly be psychotropic? 

AFAIK, both are considered to be "poisonous". However, given the tendency of 
some authors to characterize A. muscaria as poisonous - rather than 
psychotropic - I was wondering if the toxicity of the former species, taken in 
the proper amount, might not also be characterized as and/or include a 
"psychotropism".  

Any references reporting the effects of ingestion of these species would also 
be greatly appreciated.

My thanks in advance.

Stephen R. Berlant