▁structure . ▁His ▁work ▁led ▁to ▁innov ative ▁designs ▁of ▁content - address able ▁memory ▁hardware ▁for ▁micro comput ers . ▁ ▁Lamb ▁is ▁best ▁known ▁as ▁the ▁father ▁of ▁the ▁rel ational ▁network ▁theory ▁of ▁language , ▁which ▁is ▁also ▁known ▁as ▁" str at ific ational ▁theory ". ▁Near ▁the ▁turn ▁of ▁the ▁mill en ni um , ▁he ▁began ▁developing ▁the ▁theory ▁further ▁and ▁expl oring ▁its ▁possible ▁relationships ▁to ▁ne uro log ical ▁structures ▁and ▁to ▁thinking ▁processes . ▁His ▁early ▁work ▁developed ▁the ▁notion ▁of ▁" sem eme " ▁as ▁a ▁semantic ▁object , ▁analog ous ▁to ▁the ▁morph eme ▁or ▁ph on eme ▁in ▁lingu istics ; ▁it ▁was ▁one ▁of ▁the ▁inspir ations ▁of ▁Roger ▁Sch ank ' s ▁Con cept ual ▁dependency ▁theory , ▁a ▁method ology ▁for ▁representing ▁language ▁meaning ▁directly ▁within ▁the ▁Art ific ial ▁Int elligence ▁movement ▁of ▁the ▁ 1 9 6 0 s / 1 9 7 0 s . ▁ ▁In ▁ 1 9 9 9 , ▁his ▁book ▁— ▁Path ways ▁of ▁the ▁Bra in : ▁The ▁Ne uro c ogn itive ▁Bas is ▁of ▁Language ▁express ing ▁some ▁of ▁these ▁ideas ▁— ▁was ▁published . ▁See ▁also : ▁" L ingu istic ▁and ▁C ogn itive ▁Network s " ▁in ▁C ogn ition : ▁A ▁Multiple ▁View ▁( ed . ▁Paul ▁Gar vin ) ▁New ▁York : ▁Spart an ▁Books , ▁ 1 9 7 0 , ▁pp .   1 9 5 – 2 2 2