Example image of eyePlorer eyePlorer map for 'Principles and parameters': Generative linguistics Howard Lasnik Noam Chomsky Formal Subject (grammar) Syntax Null subject language Universal grammar Terrence Deacon Basque language Ergative case Larry Trask Linguistic minimalism Head directionality parameter Grammar framework Subject side parameter Higher order grammar Government phonology Frederick Newmeyer Language acquisition device Narreme Government and binding theory Robert D. Borsley Non-configurational language Move α Verb phrase Polysynthetic language Generative grammar Language acquisition P&P Parameter (disambiguation) PNP Principles Grammar Metrical phonology Parameter