1. The active nature of the mental lexicon makes any dictionary comparison unhelpful. 2. For this reason the mental lexicon is structured in terms of semantic relationships. 3. The following addresses some of the physiological, social, and linguistic aspects of the mental lexicon . 4. These meaning-bearing units can thus be stored as catenae in the mental lexicon of speakers. 5. The structural organization of the mental lexicon and its contribution to age-related declines in spoken-word recognition. 6. The meaning of a word is considered salient, if it is coded in the mental lexicon . 7. However, not all scientists agree as to the utility of the mental lexicon as a scientific construct. 8. Researchers suggest that this enhanced cognitive ability comes from continually choosing between L1 and L2 mental lexicons . 9. It seems likely that all meaning-bearing collocations are stored as catenae in the mental lexicon of language users. 10. "' Lexical Decision Tasks "'have been used for many years to access how the mental lexicon is structured.