Parameters — in generative grammar, the limited set of binary options within Universal Grammar that account for cross-linguistic variation — e.g., head-first vs head-final, pro-drop vs non-pro-drop.

Definition

In generative grammar, the limited set of binary options within Universal Grammar that account for cross-linguistic variation — e.g., head-first vs head-final, pro-drop vs non-pro-drop.

In Depth

In generative grammar, the limited set of binary options within Universal Grammar that account for cross-linguistic variation — e.g., head-first vs head-final, pro-drop vs non-pro-drop.

In-Depth Explanation

Parameters (in generative linguistics) are the limited set of binary or multi-valued grammatical options within Universal Grammar (UG) that account for systematic variation across human languages. In Chomsky’s Government and Binding (GB) and later Minimalist frameworks, all human languages share universal principles (UG) but vary along parameters — switch-like choices that cascade to produce cross-linguistic grammatical differences.

The parameters model:

In the parameters model, a child acquiring their L1 sets each parameter to the correct value based on evidence from the ambient language (the “trigger”). Once set, the parameter value accounts for a cluster of related surface differences simultaneously.

Key parameters in SLA research:

JSON-style thinking: Parameters work like a settings file — once “pro-drop: TRUE” is set, the language system consistently allows subject omission without additional learning of each occurrence.

Parameters and SLA: A major research question from the 1980s–2000s: can adult L2 learners reset parameters from their L1 value? Evidence is mixed:

• Full Transfer/Full Access model (Schwartz & Sprouse, 1994): L1 parameter values are the initial state for L2; resetting is possible but requires sufficient evidence
• Failed Functional Features hypothesis: Some functional parameter values cannot be reset after the L1 critical period
• Post-parameters approaches: Since the 1990s, some linguists question whether parameters as binary switches adequately capture cross-linguistic variation; the micro-parametric approach proposes many more fine-grained parameters

Japanese-English parameter differences:

• Japanese: head-final (SOV), no overt wh-movement (wh in-situ), radical pro-drop, no articles, postpositions
• English: head-initial (SVO), overt wh-movement, obligatory subjects, articles (a/the), prepositions

These parameter differences produce predictable L1-transfer errors in both directions.

History

The parameters model was introduced by Chomsky and developed substantially through the 1980s Principles and Parameters (P&P) framework. Key parametric analyses: Rizzi (1982) on pro-drop, Travis (1984) and Greenberg (earlier) on head position, Huang (1982) on wh in-situ. SLA researchers adopted the parameters model extensively in the 1990s to explain systematic interlanguage errors and test UG accessibility in adults (Flynn, White, Schwartz & Sprouse). The Minimalist Program (Chomsky, 1995 onwards) reconceptualised parameters at a more abstract level, complicating direct SLA application.

Common Misconceptions

• “Parameters are a proven fact about the brain.” Parameters are a theoretical construct within generative grammar — a useful model for capturing systematic cross-linguistic variation. Whether discrete binary parameters exist in the brain as actual neural switches is debated.
• “Setting a parameter automatically fixes all related errors.” Even if an L2 learner resets a parameter value, the surface realisations associated with the parameter must still be learned through exposure. Parameter resetting and surface rule learning are different processes.
• “Japanese has no parameters English lacks.” Every language has parameter values. Japanese head-finality, pro-drop, and wh in-situ represent Japanese-specific parameter settings that differ from English and create predictable learning challenges.

Social Media Sentiment

Parameters appear in academic linguistics and SLA content rather than mainstream language learning social media. The pro-drop parameter (why Spanish allows “Hablas español?” without “tú”) appears occasionally in YouTube grammar explanation content. Generative SLA content versus usage-based SLA content represents an ongoing debate in the field visible in linguistics education channels.

Last updated: 2026-04

Practical Application

• Understanding systematic errors: If you know that Japanese is head-final and English is head-initial, you can anticipate and consciously correct the verb-placement errors Japanese learners of English (and vice versa) make systematically.
• Pro-drop awareness: English speakers learning Japanese must get comfortable with subject omission (pro-drop) — treating every omitted subject as an error is an L1-English parameter-transfer assumption. Conversely, Japanese speakers learning English need to produce explicit subjects throughout.
• SVO vs. SOV: The head-direction/word order parameter is one of the most practically significant for Japanese-English learners. Building intuition for the inverted sentence structures (not just learning rules for them) requires substantial input exposure.
• In-situ wh: Japanese leaves question words in their surface position (誰が来た? — “Who came?” → 誰が, dare ga, stays in subject position). English moves wh-words to front (Who came?). This is handled naturally in acquisition but reflects an underlying parametric difference.

Related Terms

• Universal Grammar
• Transfer
• Generative Linguistics
• Pro-Drop
• Head Direction

See Also

Sakubo – Japanese App

Sources

• Chomsky, N. (1981). Lectures on Government and Binding. Foris. The foundational Principles and Parameters framework proposing parameters as the mechanism for cross-linguistic variation.
• Schwartz, B. D., & Sprouse, R. A. (1994). Word order and nominative case in nonnative language acquisition. In T. Hoekstra & B. Schwartz (Eds.), Language Acquisition Studies in Generative Grammar. John Benjamins. The Full Transfer/Full Access model of parameter acquisition in SLA.
• White, L. (2003). Second Language Acquisition and Universal Grammar. Cambridge University Press. Comprehensive overview of parameter-resetting research in SLA across major parameters.