Abstract
Objective
To determine if pretreatment nonlinguistic cognition predicted language treatment
outcomes and if so, which specific nonlinguistic cognitive subskills predicted naming
therapy outcomes.
Design
Retrospective.
Setting
Research clinic.
Participants
Study 1 included data from 67 persons with aphasia who underwent language treatment
and a pretreatment cognitive-linguistic assessment battery (N=67). Study 2 included
data from 27 study 1 participants who completed additional pretreatment nonlinguistic
cognitive assessments.
Interventions
120-minute sessions of sentence comprehension (n=26) or naming treatment (n=41) 2
times per week for up to 10-12 weeks.
Main Outcome Measures
Proportion of potential maximal gain (PMG) (assessed immediately after treatment [10-12wk];
formula=mean posttreatment score–mean pretreatment score/total number of trained items–mean
pretreatment score) and proportion of potential maximal gain maintained (PMGM) (assessed
12wk after posttreatment [22-24wk]; formula=mean maintenance score–mean pretreatment
score/total number of trained items–mean pretreatment score) as outcome variables;
and pretreatment assessment scores as predictor variables.
Results
In study 1, 37% of participants demonstrated nonlinguistic cognitive deficits. Principal
component analyses reduced assessment data to 2 components: linguistic and nonlinguistic
cognition. Backward elimination regression revealed that higher linguistic and nonlinguistic
cognitive function significantly predicted higher PMG after language therapy. In study
2, principal component analysis of only the nonlinguistic cognitive measures identified
3 components: executive function, verbal short-term memory, and visual short-term
memory. Controlling for pretreatment apraxia of speech and auditory comprehension
deficits, regression analyses revealed that higher executive function and visual short-term
memory significantly predicted higher PMG and PMGM after naming therapy.
Conclusions
Pretreatment nonlinguistic cognitive function significantly influenced language treatment
outcomes and maintenance of therapy gains.
Keywords
List of abbreviations:
PMG (potential maximal gain), PMGM (potential maximal gain maintained), SE (standard error)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: January 09, 2019
Footnotes
Supported by the National Institutes of Health (grant nos. 1P50DC012283, 2013-2018; R21-R33DC010461, 2009-2015; 5F31DC011220, 2012-2014; 1K18DC011517, 2011-2013, NIH/NIDCD F31DC015940, 2017-2019, and 5T32DC013017, 2016-2018).
Disclosures: none.
Identification
Copyright
© 2019 by the American Congress of Rehabilitation Medicine
