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Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation
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| Zeitschriftentitel: | Journal of Speech, Language, and Hearing Research |
|---|---|
| Personen und Körperschaften: | , |
| In: | Journal of Speech, Language, and Hearing Research, 55, 2012, 6, S. 1613-1625 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Speech Language Hearing Association
|
| Schlagwörter: |
| author_facet |
Silkes, JoAnn P. Rogers, Margaret A. Silkes, JoAnn P. Rogers, Margaret A. |
|---|---|
| author |
Silkes, JoAnn P. Rogers, Margaret A. |
| spellingShingle |
Silkes, JoAnn P. Rogers, Margaret A. Journal of Speech, Language, and Hearing Research Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation Speech and Hearing Linguistics and Language Language and Linguistics |
| author_sort |
silkes, joann p. |
| spelling |
Silkes, JoAnn P. Rogers, Margaret A. 1092-4388 1558-9102 American Speech Language Hearing Association Speech and Hearing Linguistics and Language Language and Linguistics http://dx.doi.org/10.1044/1092-4388(2012/10-0260) <jats:sec> <jats:title>Purpose</jats:title> <jats:p>Previous research has suggested that impairments of automatic spreading activation may underlie some aphasic language deficits. The current study further investigated the status of automatic spreading activation in individuals with aphasia as compared with typical adults.</jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>Participants were 21 individuals with aphasia (12 fluent, 9 nonfluent) and 31 typical adults. Reaction time data were collected on a lexical decision task with masked repetition primes, assessed at 11 different interstimulus intervals (ISIs). Masked primes were used to assess automatic spreading activation without the confound of conscious processing. The various ISIs were used to assess the time to onset and duration of priming effects.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>The control group showed maximal priming in the 200-ms ISI condition, with significant priming at a range of ISIs surrounding that peak. Participants with both fluent and nonfluent aphasia showed maximal priming effects in the 250-ms ISI condition and primed across a smaller range of ISIs than did the control group.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions</jats:title> <jats:p>Results suggest that individuals with aphasia have slowed automatic spreading activation and impaired maintenance of activation over time, regardless of fluency classification. These findings have implications for understanding aphasic language impairment and for development of aphasia treatments designed to directly address automatic language processes.</jats:p> </jats:sec> Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation Journal of Speech, Language, and Hearing Research |
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10.1044/1092-4388(2012/10-0260) |
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Allgemeines Allgemeine und vergleichende Sprach- und Literaturwissenschaft, Indogermanistik, Außereuropäische Sprachen und Literaturen |
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American Speech Language Hearing Association, 2012 |
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American Speech Language Hearing Association, 2012 |
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1092-4388 1558-9102 |
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1092-4388 1558-9102 |
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2012 |
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American Speech Language Hearing Association |
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Journal of Speech, Language, and Hearing Research |
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49 |
| title |
Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_unstemmed |
Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_full |
Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_fullStr |
Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_full_unstemmed |
Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_short |
Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_sort |
masked priming effects in aphasia: evidence of altered automatic spreading activation |
| topic |
Speech and Hearing Linguistics and Language Language and Linguistics |
| url |
http://dx.doi.org/10.1044/1092-4388(2012/10-0260) |
| publishDate |
2012 |
| physical |
1613-1625 |
| description |
<jats:sec>
<jats:title>Purpose</jats:title>
<jats:p>Previous research has suggested that impairments of automatic spreading activation may underlie some aphasic language deficits. The current study further investigated the status of automatic spreading activation in individuals with aphasia as compared with typical adults.</jats:p>
</jats:sec>
<jats:sec>
<jats:title>Method</jats:title>
<jats:p>Participants were 21 individuals with aphasia (12 fluent, 9 nonfluent) and 31 typical adults. Reaction time data were collected on a lexical decision task with masked repetition primes, assessed at 11 different interstimulus intervals (ISIs). Masked primes were used to assess automatic spreading activation without the confound of conscious processing. The various ISIs were used to assess the time to onset and duration of priming effects.</jats:p>
</jats:sec>
<jats:sec>
<jats:title>Results</jats:title>
<jats:p>The control group showed maximal priming in the 200-ms ISI condition, with significant priming at a range of ISIs surrounding that peak. Participants with both fluent and nonfluent aphasia showed maximal priming effects in the 250-ms ISI condition and primed across a smaller range of ISIs than did the control group.</jats:p>
</jats:sec>
<jats:sec>
<jats:title>Conclusions</jats:title>
<jats:p>Results suggest that individuals with aphasia have slowed automatic spreading activation and impaired maintenance of activation over time, regardless of fluency classification. These findings have implications for understanding aphasic language impairment and for development of aphasia treatments designed to directly address automatic language processes.</jats:p>
</jats:sec> |
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| author | Silkes, JoAnn P., Rogers, Margaret A. |
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| description | <jats:sec> <jats:title>Purpose</jats:title> <jats:p>Previous research has suggested that impairments of automatic spreading activation may underlie some aphasic language deficits. The current study further investigated the status of automatic spreading activation in individuals with aphasia as compared with typical adults.</jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>Participants were 21 individuals with aphasia (12 fluent, 9 nonfluent) and 31 typical adults. Reaction time data were collected on a lexical decision task with masked repetition primes, assessed at 11 different interstimulus intervals (ISIs). Masked primes were used to assess automatic spreading activation without the confound of conscious processing. The various ISIs were used to assess the time to onset and duration of priming effects.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>The control group showed maximal priming in the 200-ms ISI condition, with significant priming at a range of ISIs surrounding that peak. Participants with both fluent and nonfluent aphasia showed maximal priming effects in the 250-ms ISI condition and primed across a smaller range of ISIs than did the control group.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions</jats:title> <jats:p>Results suggest that individuals with aphasia have slowed automatic spreading activation and impaired maintenance of activation over time, regardless of fluency classification. These findings have implications for understanding aphasic language impairment and for development of aphasia treatments designed to directly address automatic language processes.</jats:p> </jats:sec> |
| doi_str_mv | 10.1044/1092-4388(2012/10-0260) |
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| imprint | American Speech Language Hearing Association, 2012 |
| imprint_str_mv | American Speech Language Hearing Association, 2012 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, FID-MEDIEN-DE-15, DE-14, DE-Ch1, DE-L229 |
| issn | 1092-4388, 1558-9102 |
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| series | Journal of Speech, Language, and Hearing Research |
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| spelling | Silkes, JoAnn P. Rogers, Margaret A. 1092-4388 1558-9102 American Speech Language Hearing Association Speech and Hearing Linguistics and Language Language and Linguistics http://dx.doi.org/10.1044/1092-4388(2012/10-0260) <jats:sec> <jats:title>Purpose</jats:title> <jats:p>Previous research has suggested that impairments of automatic spreading activation may underlie some aphasic language deficits. The current study further investigated the status of automatic spreading activation in individuals with aphasia as compared with typical adults.</jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>Participants were 21 individuals with aphasia (12 fluent, 9 nonfluent) and 31 typical adults. Reaction time data were collected on a lexical decision task with masked repetition primes, assessed at 11 different interstimulus intervals (ISIs). Masked primes were used to assess automatic spreading activation without the confound of conscious processing. The various ISIs were used to assess the time to onset and duration of priming effects.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>The control group showed maximal priming in the 200-ms ISI condition, with significant priming at a range of ISIs surrounding that peak. Participants with both fluent and nonfluent aphasia showed maximal priming effects in the 250-ms ISI condition and primed across a smaller range of ISIs than did the control group.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions</jats:title> <jats:p>Results suggest that individuals with aphasia have slowed automatic spreading activation and impaired maintenance of activation over time, regardless of fluency classification. These findings have implications for understanding aphasic language impairment and for development of aphasia treatments designed to directly address automatic language processes.</jats:p> </jats:sec> Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation Journal of Speech, Language, and Hearing Research |
| spellingShingle | Silkes, JoAnn P., Rogers, Margaret A., Journal of Speech, Language, and Hearing Research, Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation, Speech and Hearing, Linguistics and Language, Language and Linguistics |
| title | Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_full | Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_fullStr | Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_full_unstemmed | Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_short | Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| title_sort | masked priming effects in aphasia: evidence of altered automatic spreading activation |
| title_unstemmed | Masked Priming Effects in Aphasia: Evidence of Altered Automatic Spreading Activation |
| topic | Speech and Hearing, Linguistics and Language, Language and Linguistics |
| url | http://dx.doi.org/10.1044/1092-4388(2012/10-0260) |