Role of the lateral prefrontal cortex in speech monitoring

Riès, Stéphanie; Xie, Keliang; Haaland, Kathleen Y.; Dronkers, Nina F.; Knight, Robert T.

doi:10.3389/fnhum.2013.00703

Cited by 23 publications

(40 citation statements)

References 77 publications

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“…Ultimately, we acknowledge that studying the details of monitoring and repair processes in word production is methodologically challenging. More natural methods (e.g., spontaneous monitoring during picture naming) can be used in individuals with brain damage (e.g., Nozari et al, 2011; Riès, Xie, Haaland, Dronkers, & Knight, 2013), but are unlikely to yield enough errors in neurotypical individuals. As such, we are left with the option of using experimental paradigms to capture the cognitive processes underlying monitoring and repair as closely as possible, which we believe this study has accomplished in a reasonable way.…”

Section: Discussionmentioning

confidence: 99%

Cognitive control during selection and repair in word production

Nozari

Freund

Breining

et al. 2016

Language, Cognition and Neuroscience

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Production of an intended word entails selection processes, in which first the lexical item and then its segments are selected among competitors, as well as processes that covertly or overtly repair dispreferred words. In two experiments, we studied the locus of the control processes involved in selection (selection control) and intercepting errors (post-monitoring control). Selection control was studied by manipulating the overlap (contextual similarity) in either semantics or in segments between two objects that participants repeatedly named. Post-monitoring control was examined by asking participants to reverse, within each block, the name of the two objects that were either semantically-or segmentally-related, thus suppressing a potent, but incorrect, response in favor of an alternative (reversal). Results showed robust costs of both contextual similarity (which increased with the degree of similarity between target and context) and reversal, but the two did not interact with one another. Analysis of individual differences revealed no reliable correlation between the cost of contextual similarity when pairs were semantically-or segmentally-related, suggesting stage-specific selection control processes. On the other hand, the cost of reversal was reliably correlated between semantically-and segmentally-related pairs, implying a different control process that is shared by both stages of production. Collectively, these results support a model in which selection control operates separately at lexical and segmental selection stages, but post-monitoring control operates on the segmentally-encoded outcome.

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Section: Discussionmentioning

confidence: 99%

Cognitive control during selection and repair in word production

Nozari

Freund

Breining

et al. 2016

Language, Cognition and Neuroscience

View full text Add to dashboard Cite

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“…The procedure was the same as described in Riès et al (2013Riès et al ( , 2014Riès et al ( , 2015. We repeat relevant aspects for the current study.…”

Section: Methodsmentioning

confidence: 99%

Lesions to the left lateral prefrontal cortex impair decision threshold adjustment for lexical selection

Anders

Riès

Maanen

et al. 2017

Cognitive Neuropsychology

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Patients with lesions in the left prefrontal cortex (PFC) have been shown to be impaired in lexical selection, especially when interference between semantically related alternatives is increased. To more deeply investigate which computational mechanisms may be impaired following left PFC damage due to stroke, a psychometric modelling approach is employed in which we assess the cognitive parameters of the patients from an evidence accumulation (sequential information sampling) modelling of their response data. We also compare the results to healthy speakers. Analysis of the cognitive parameters indicates an impairment of the PFC patients to appropriately adjust their decision threshold, in order to handle the increased item difficulty that is introduced by semantic interference. Also, the modelling contributes to other topics in psycholinguistic theory, in which specific effects are observed on the cognitive parameters according to item familiarization, and the opposing effects of priming (lower threshold) and semantic interference (lower drift) which are found to depend on repetition. These results are developed for the blocked-cyclic picture naming paradigm, in which pictures are presented within semantically homogeneous (HOM) or heterogeneous (HET) blocks, and are repeated several times per block. Overall, the results are in agreement with a role of the left PFC in adjusting the decision threshold for lexical selection in language production.

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“…All analyses were performed on data previously reported in Riès et al (2013), with the addition of 2 new aged-matched control participants. Here we report those methods that differed from the previous study.…”

Section: Methodsmentioning

confidence: 99%

“…The procedure was the same as described in Riès et al (2013). Here we repeat the relevant aspects for the current study.…”

Section: Methodsmentioning

confidence: 99%

Double dissociation of the roles of the left and right prefrontal cortices in anticipatory regulation of action

et al. 2014

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Recent actions can benefit or disrupt our current actions and the prefrontal cortex (PFC) is thought to play a major role in the regulation of these actions before they occur. The left PFC has been associated with overcoming interference from past events in the context of language production and working memory. The right PFC, and especially the right IFG, has been associated with preparatory inhibition processes. But damage to the right PFC has also been associated with impairment in sustaining actions in motor intentional disorders. Moreover, bilateral dorsolateral PFC has been associated with the ability to maintain task-sets, and improve the performance of current actions based on previous experience. However, potential hemispheric asymmetries in anticipatory regulation of action have not yet been delineated. In the present study, patients with left (n=7) vs. right (n=6) PFC damage due to stroke and 14 aged- and education-matched controls performed a picture naming and a verbal Simon task (participants had to say “right” or “left” depending on the color of the picture while ignoring its position). In both tasks, performance depended on the nature of the preceding trial, but in different ways. In the naming task, performance decreased if previous pictures were from the same rather than from different semantic categories (i.e., semantic interference effect). In the Simon task, performance was better for both compatible (i.e., response matching the position of the stimulus) and incompatible trials when preceded by a trial of the same compatibility (i.e. Gratton effect) relative to sequential trials of different compatibility. Left PFC patients were selectively impaired in picture naming; they had an increased semantic interference effect compared to both right PFC patients and aged-matched controls. Conversely, right PFC patients were selectively impaired in the Simon task compared to controls or left PFC patients; they showed no benefit when sequential trials were compatible (cC vs. iC trials) or a decreased Gratton effect. These results provide evidence for a double dissociation between left and right PFC in the anticipatory regulation of action. Our results are in agreement with a preponderant role of the left PFC in overcoming proactive interference from competing memory representations and provide evidence that the right PFC, plays a role in sustaining goal-directed actions consistent with clinical data in right PFC patients with motor intentional disorders.

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Role of the lateral prefrontal cortex in speech monitoring

Cited by 23 publications

References 77 publications

Cognitive control during selection and repair in word production

Cognitive control during selection and repair in word production

Lesions to the left lateral prefrontal cortex impair decision threshold adjustment for lexical selection

Double dissociation of the roles of the left and right prefrontal cortices in anticipatory regulation of action

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