Twisting Tongues to Test for Conflict-Monitoring in Speech Production
A number of recent studies have hypothesized that monitoring in speech production may occur via domain-general mechanisms responsible for the detection of response conflict. Outside of language, two ERP components have consistently been elicited in conflict-inducing tasks (e.g., the flanker task): T...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2014-04-01
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| Series: | Frontiers in Human Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00206/full |
| _version_ | 1818515838003576832 |
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| author | Daniel eAcheson Daniel eAcheson Peter eHagoort Peter eHagoort |
| author_facet | Daniel eAcheson Daniel eAcheson Peter eHagoort Peter eHagoort |
| author_sort | Daniel eAcheson |
| collection | DOAJ |
| description | A number of recent studies have hypothesized that monitoring in speech production may occur via domain-general mechanisms responsible for the detection of response conflict. Outside of language, two ERP components have consistently been elicited in conflict-inducing tasks (e.g., the flanker task): The stimulus-locked N2 on correct trials, and the response-locked error-related negativity (ERN). The present investigation used these electrophysiological markers to test whether a common response conflict monitor is responsible for monitoring in speech and non-speech tasks.<br/><br/>EEG was recorded while participants performed a tongue twister (TT) task and a manual version of the flanker task. In the TT task, people rapidly read sequences of four nonwords arranged in TT and non-TT patterns three times. In the flanker task, people responded with a left/right button press to a center-facing arrow, and conflict was manipulated by the congruency of the flanking arrows.<br/><br/>Behavioral results showed typical effects of both tasks, with increased error rates and slower speech onset times for TT relative to non-TT trials and for incongruent relative to congruent flanker trials. In the flanker task, stimulus-locked EEG analyses replicated previous results, with a larger N2 for incongruent relative to congruent trials, and a response-locked ERN. In the TT task, stimulus-locked analyses revealed broad, frontally-distributed differences beginning around 50 ms and lasting until just before speech initiation, with TT trials more negative than non-TT trials; response-locked analyses revealed an ERN. Correlation across these measures showed some correlations within a task, but little evidence of systematic cross-task correlation. <br/><br/>Although the present results do not speak against conflict signals from the production system serving as cues to self-monitoring, they are not consistent with signatures of response conflict being mediated by a single, domain-general conflict monitor.<br/> |
| first_indexed | 2024-12-11T00:34:05Z |
| format | Article |
| id | doaj.art-3ead84aaf75d45ed99af0f35bf47befd |
| institution | Directory Open Access Journal |
| issn | 1662-5161 |
| language | English |
| last_indexed | 2024-12-11T00:34:05Z |
| publishDate | 2014-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Human Neuroscience |
| spelling | doaj.art-3ead84aaf75d45ed99af0f35bf47befd2022-12-22T01:27:13ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612014-04-01810.3389/fnhum.2014.0020662392Twisting Tongues to Test for Conflict-Monitoring in Speech ProductionDaniel eAcheson0Daniel eAcheson1Peter eHagoort2Peter eHagoort3Max Planck Institute for PsycholinguisticsDonders Institute for Brain, Cognition & BehaviourMax Planck Institute for PsycholinguisticsDonders Institute for Brain, Cognition & BehaviourA number of recent studies have hypothesized that monitoring in speech production may occur via domain-general mechanisms responsible for the detection of response conflict. Outside of language, two ERP components have consistently been elicited in conflict-inducing tasks (e.g., the flanker task): The stimulus-locked N2 on correct trials, and the response-locked error-related negativity (ERN). The present investigation used these electrophysiological markers to test whether a common response conflict monitor is responsible for monitoring in speech and non-speech tasks.<br/><br/>EEG was recorded while participants performed a tongue twister (TT) task and a manual version of the flanker task. In the TT task, people rapidly read sequences of four nonwords arranged in TT and non-TT patterns three times. In the flanker task, people responded with a left/right button press to a center-facing arrow, and conflict was manipulated by the congruency of the flanking arrows.<br/><br/>Behavioral results showed typical effects of both tasks, with increased error rates and slower speech onset times for TT relative to non-TT trials and for incongruent relative to congruent flanker trials. In the flanker task, stimulus-locked EEG analyses replicated previous results, with a larger N2 for incongruent relative to congruent trials, and a response-locked ERN. In the TT task, stimulus-locked analyses revealed broad, frontally-distributed differences beginning around 50 ms and lasting until just before speech initiation, with TT trials more negative than non-TT trials; response-locked analyses revealed an ERN. Correlation across these measures showed some correlations within a task, but little evidence of systematic cross-task correlation. <br/><br/>Although the present results do not speak against conflict signals from the production system serving as cues to self-monitoring, they are not consistent with signatures of response conflict being mediated by a single, domain-general conflict monitor.<br/>http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00206/fullcognitive controlconflict monitoringflanker taskspeech productionN2Self-Monitoring |
| spellingShingle | Daniel eAcheson Daniel eAcheson Peter eHagoort Peter eHagoort Twisting Tongues to Test for Conflict-Monitoring in Speech Production Frontiers in Human Neuroscience cognitive control conflict monitoring flanker task speech production N2 Self-Monitoring |
| title | Twisting Tongues to Test for Conflict-Monitoring in Speech Production |
| title_full | Twisting Tongues to Test for Conflict-Monitoring in Speech Production |
| title_fullStr | Twisting Tongues to Test for Conflict-Monitoring in Speech Production |
| title_full_unstemmed | Twisting Tongues to Test for Conflict-Monitoring in Speech Production |
| title_short | Twisting Tongues to Test for Conflict-Monitoring in Speech Production |
| title_sort | twisting tongues to test for conflict monitoring in speech production |
| topic | cognitive control conflict monitoring flanker task speech production N2 Self-Monitoring |
| url | http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00206/full |
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