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Spoken word recognition by children with and without specific language impairment : an examination of lexical characteristics Lewis, Julie A.
Abstract
The current study had three aims: 1) To examine spoken word recognition by children with and without specific language impairment (SLI), 2) To investigate the effects of two lexical characteristics, age of acquisition and neighbourhood density, on spoken word recognition, and 3) To explore possible links between spoken word recognition and phonological short-term memory or semantic knowledge. Eight school-aged children with SLI and nine typically developing children matched for comprehension vocabulary completed three experimental tasks. First, they listened to 28 common nouns presented in a gating paradigm. The 28 words varied along the dimensions of age of acquisition (early- versus late-acquired) and neighbourhood density (words from sparse versus dense phonological neighbourhoods) so that there were four types of words: early/sparse, early/dense, late/sparse and late/dense. Participants were asked to identify the word being presented. Second, participants completed a word-picture matching task (from a choice of four pictures) that measured the depth of their semantic knowledge of the same 28 words. Third, children repeated nonsense words that varied from one to four syllables in length as a measure of their phonological short-term memory. Results from the gating task found no significant difference between groups. For both groups, children recognized early-acquired words from sparse neighbourhoods more quickly than early-acquired words from dense neighbourhoods and late-acquired words from both sparse and dense neighbourhoods. A significant correlation was found between the gating task and the nonsense word repetition task for all participants. The longer the phonological short-term memory span, the more quickly words were recognized for all children. A strong and marginally significant correlation was found between the gating task and the word-picture matching task for the children with SLI only: the higher the number of words they could correctly match to a picture the more quickly words were recognized in the gating task. These results suggest that children with SLI do not have a deficit relative to vocabulary-matched peers in the recognition of single, spoken, words. Furthermore, the current findings provide some degree of support for a relationship between spoken word recognition and both phonological short-term memory and depth of semantic knowledge.
Item Metadata
Title |
Spoken word recognition by children with and without specific language impairment : an examination of lexical characteristics
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2005
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Description |
The current study had three aims: 1) To examine spoken word recognition by children
with and without specific language impairment (SLI), 2) To investigate the effects of two
lexical characteristics, age of acquisition and neighbourhood density, on spoken word
recognition, and 3) To explore possible links between spoken word recognition and
phonological short-term memory or semantic knowledge.
Eight school-aged children with SLI and nine typically developing children matched
for comprehension vocabulary completed three experimental tasks. First, they listened to 28
common nouns presented in a gating paradigm. The 28 words varied along the dimensions of
age of acquisition (early- versus late-acquired) and neighbourhood density (words from
sparse versus dense phonological neighbourhoods) so that there were four types of words:
early/sparse, early/dense, late/sparse and late/dense. Participants were asked to identify the
word being presented. Second, participants completed a word-picture matching task (from a
choice of four pictures) that measured the depth of their semantic knowledge of the same 28
words. Third, children repeated nonsense words that varied from one to four syllables in
length as a measure of their phonological short-term memory.
Results from the gating task found no significant difference between groups. For
both groups, children recognized early-acquired words from sparse neighbourhoods more
quickly than early-acquired words from dense neighbourhoods and late-acquired words from
both sparse and dense neighbourhoods. A significant correlation was found between the
gating task and the nonsense word repetition task for all participants. The longer the
phonological short-term memory span, the more quickly words were recognized for all
children. A strong and marginally significant correlation was found between the gating task
and the word-picture matching task for the children with SLI only: the higher the number of
words they could correctly match to a picture the more quickly words were recognized in the
gating task.
These results suggest that children with SLI do not have a deficit relative to
vocabulary-matched peers in the recognition of single, spoken, words. Furthermore, the
current findings provide some degree of support for a relationship between spoken word
recognition and both phonological short-term memory and depth of semantic knowledge.
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Genre | |
Type | |
Language |
eng
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Date Available |
2009-12-11
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0092133
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2005-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.