The Mental Lexicon and Word Recognition
This area studies how words are stored in the mind and how they are recognized and retrieved during listening and reading.
Definition
The branch of psycholinguistics concerned with how words are represented in long-term memory (the mental lexicon) and how they are accessed and recognized in real time.
Scope
It covers the structure and organization of the mental lexicon, the time course of spoken and visual word recognition, how candidate words compete and are selected, and how lexical, frequency, and contextual factors shape access. It includes models such as the cohort model, the logogen model, and interactive-activation accounts, and the priming and lexical-decision methods used to study them. The focus is on describing the representations and mechanisms rather than prescribing vocabulary instruction.
Sub-topics
Core questions
- How is the mental lexicon organized and how are entries retrieved?
- How does recognition of a spoken or written word unfold over time?
- How do candidate words compete during recognition, and how is one selected?
- How do frequency, context, and prior activation (priming) affect lexical access?
Key concepts
- mental lexicon
- lexical access
- cohort
- word frequency effect
- semantic priming
- lexical decision task
Key theories
- Cohort model
- Marslen-Wilson's account in which the initial sounds of a spoken word activate a 'cohort' of candidates that is progressively narrowed as more of the word is heard until a unique item remains.
- Interactive-activation model
- McClelland and Rumelhart's connectionist model of visual word recognition in which feature, letter, and word levels excite and inhibit one another, explaining context effects such as the word-superiority effect.
- Spreading activation and semantic priming
- The finding that recognizing a word is faster when preceded by a semantically related word, taken as evidence that lexical-semantic representations are linked and that activation spreads among them.
History
Word-recognition research was shaped by Morton's logogen model in the late 1960s, Meyer and Schvaneveldt's discovery of semantic priming in 1971, Marslen-Wilson's cohort model of spoken recognition, and McClelland and Rumelhart's 1981 interactive-activation model, which brought connectionist methods into reading research.
Debates
- Autonomous versus interactive lexical access
- Whether higher-level context can influence the earliest stages of word recognition (interactive views) or whether initial access is driven by the bottom-up signal alone with context acting only afterward (autonomous views).
Key figures
- William Marslen-Wilson
- James McClelland
- David Rumelhart
- David Meyer
Related topics
Seminal works
- marslenwilson1987
- mcclellandrumelhart1981
- meyerschvaneveldt1971
Frequently asked questions
- What is the mental lexicon?
- It is the store of words and the information associated with them (sound, spelling, meaning, grammatical properties) that a speaker holds in long-term memory and draws on during comprehension and production.
- Why are common words recognized faster than rare ones?
- This is the word-frequency effect: high-frequency words are accessed more quickly and accurately, which models capture by giving frequent words lower activation thresholds or higher resting activation.