The Lexical Neighborhood/Multisyllabic Lexical Neighborhood Tests (LNT-MLNT) were developed primarily for use with cochlear implant children. Determining the benefits of sensory aids (i.e. hearing aids or cochlear implants) is essential for the proper management of hearing impaired children. Open-set word recognition tests have provided important diagnostic information relative to the benefits of sensory aids. The information garnered from these tests indicates the extent of neural representation of words in a child’s long-term lexical memory.
The most used open-set word recognition test for children has been the PBK-50 lists. However, it has been noted that for hearing-impaired children the PBK-50 does not assess the abilities of these children validly. The LNT-MLNT has been shown to be a more sensitive measure of spoken word recognition in these children.
The LNT-MLNT was developed along theoretically motivated current models of spoken word recognition in listeners with hearing impairment. The development of the LNT-MLNT was based on the assumptions of the Neighborhood Activation Model (NAM), which proposes that words are organized into “similarity neighborhoods” based on their frequency of occurrence in the language and the number of phonemically similar words, or neighbors, within the lexical neighborhood. A dense lexical neighborhood contains many phonemically similar words, whereas a sparse lexical neighborhood has few phonemically similar words. Words that occur often and come from sparse lexical neighborhoods are easier for children to identify than words with the opposite lexical characteristics.
The stimulus words for the LNT-MLNT were selected according to two criteria: 1. The words had to be familiar to young children with limited vocabularies. 2. The selection was based on current models (NAM) of word recognition and lexical access. Stimuli on the LNT-MLNT are separated into easy and hard word lists.
The LNT/MLNT includes a) audio recording, and b) manual and score forms as printable pdf files. The nineteen-page manual includes administration information and normative data for children. Available from Auditec, Inc. Call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping to the contiguous US.
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