▁and ▁un in hib ited ▁motion ▁sometimes ▁experienced ▁with ▁mar iju ana ▁demonstrated ▁the ▁purpose ▁of ▁the ▁higher ▁four ▁circ uits . ▁The ▁function ▁of ▁the ▁fifth ▁circuit ▁was ▁to ▁acc ustom ▁humans ▁to ▁life ▁at ▁a ▁zero ▁gravity ▁environment . ▁Le ary ▁did ▁not ▁specify ▁the ▁location ▁of ▁the ▁eight ▁circ uits ▁in ▁any ▁brain ▁structures , ▁neural ▁organization , ▁or ▁chemical ▁path ways . ▁Le ary ▁wrote ▁that ▁the ▁eight ▁circ uits ▁were ▁given ▁to ▁humans ▁by ▁a ▁higher ▁intelligence ▁" located ▁in ▁inter stell ar ▁nuclear - gra v it ational - quant um ▁structures ." ▁A ▁" U . F . O . ▁message " ▁was ▁encoded ▁in ▁human ▁DNA . ▁ ▁In ▁the ▁academic ▁community , ▁many ▁research ers ▁believed ▁that ▁Le ary ▁provided ▁little ▁scientific ▁evidence ▁for ▁his ▁claims . ▁ ▁Even ▁before ▁he ▁began ▁working ▁on ▁psych ed el ics ▁he ▁was ▁known ▁as ▁a ▁the or etic ian ▁rather ▁than ▁a ▁data ▁collect or . ▁His ▁most ▁am bit ious ▁pre - ps ych ed el ic ▁work ▁was ▁Inter person al ▁Di agn osis ▁Of ▁Person ality . ▁The ▁rev iewer ▁for ▁The ▁British ▁Medical ▁Journal ▁wrote ▁that ▁Le ary ▁created ▁a ▁confusing ▁and ▁over ly ▁broad ▁rub ric ▁for ▁testing ▁psych iat ric ▁conditions . ▁" Per haps ▁the ▁worst ▁failing ▁of ▁the ▁book ▁is ▁the ▁om ission ▁of ▁any ▁kind ▁of ▁proof ▁for ▁the ▁valid ity ▁and ▁reli ability ▁of ▁the ▁di agnostic ▁system ," ▁wrote ▁rev iewer ▁H . ▁J .