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Top-down resolution of lexico-semantic competition in speech production and the role of the left inferior frontal gyrus: an fMRI study ...
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Top-down resolution of lexico-semantic competition in speech production and the role of the left inferior frontal gyrus: an fMRI study ...
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Top-down resolution of lexico-semantic competition in speech production and the role of the left inferior frontal gyrus: an fMRI study
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The shape of things to come in speech production: a functional magnetic resonance imaging study of visual form interference during lexical access
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Neural mechanisms for monitoring and halting of spoken word production
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Abstract:
During conversation, speakers monitor their own and others' output so they can alter their production adaptively, including halting it if needed. We investigated the neural mechanisms of monitoring and halting in spoken word production by employing a modified stop signal task during fMRI. Healthy participants named target pictures and withheld their naming response when presented with infrequent auditory words as stop signals. We also investigated whether the speech comprehension system monitors inner (i.e., prearticulatory) speech via the output of phonological word form encoding as proposed by the perceptual loop theory [Levelt, W. J. M. Speaking: From intention to articulation. Cambridge, MA: MIT Press, 1989] by presenting stop signals phonologically similar to the target picture name (e.g., cabbage-CAMEL). The contrast of successful halting versus naming revealed extensive BOLD signal responses in bilateral inferior frontal gyrus, preSMA, and superior temporal gyrus. Successful versus unsuccessful halting of speech was associated with increased BOLD signal bilaterally in the posterior middle temporal, frontal, and parietal lobes and decreases bilaterally in the posterior and left anterior superior temporal gyrus and right inferior frontal gyrus. These results show, for the first time, the neural mechanisms engaged during both monitoring and interrupting speech production. However, we failed to observe any differential effects of phonological similarity in either the behavioral or neural data, indicating monitoring of inner versus external speech might involve different mechanisms.
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Keyword:
2805 Cognitive Neuroscience; Brain; Event-Related Fmri; Inhibition; Inner Speech; Repair; Speech Production
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URL: https://espace.library.uq.edu.au/view/UQ:8ba5e62
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The shape of things to come in speech production: visual form interference during lexical access
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No lexical competition without priming: evidence from the picture–word interference paradigm
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Human subcortical brain asymmetries in 15,847 people worldwide reveal effects of age and sex
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In: ISSN: 1931-7557 ; EISSN: 1931-7565 ; Brain imaging and behavior (Brain Imaging Behav) ; https://hal.archives-ouvertes.fr/hal-01382787 ; Brain imaging and behavior (Brain Imaging Behav), Secaucus, NJ : Springer, 2017, 11 (5), pp.1497-1514. ⟨10.1007/s11682-016-9629-z⟩ (2017)
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Novel genetic loci associated with hippocampal volume
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In: ISSN: 2041-1723 ; EISSN: 2041-1723 ; Nature Communications ; https://hal.archives-ouvertes.fr/hal-01488337 ; Nature Communications, Nature Publishing Group, 2017, 8, pp.13624. ⟨10.1038/ncomms13624⟩ (2017)
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Novel genetic loci underlying human intracranial volume identified through genome-wide association
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In: ISSN: 1097-6256 ; EISSN: 1546-1726 ; Nature Neuroscience ; https://hal.archives-ouvertes.fr/hal-01382716 ; Nature Neuroscience, Nature Publishing Group, 2016, 19 (12), pp.1569-1582. ⟨10.1038/nn.4398⟩ (2016)
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Let's not miss the forest for the trees: A reply to Montefinese and Vinson's (2015) commentary on Vieth et al. (2014)
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Common genetic variants influence human subcortical brain structures.
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In: ISSN: 0028-0836 ; EISSN: 1476-4679 ; Nature ; https://hal.archives-ouvertes.fr/hal-01196805 ; Nature, Nature Publishing Group, 2015, 520 (7546), pp.224-9. ⟨10.1038/nature14101⟩ (2015)
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Early and late electrophysiological effects of distractor frequency in picture naming: Reconciling input and output accounts
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Early and late electrophysiological effects of distractor frequency in picture naming: reconciling input and output accounts
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Neural mechanisms underlying perilesional transcranial direct current stimulation in aphasia: A feasibility study
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The roles of shared vs. distinctive conceptual features in lexical access
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Mind what you say—general and specific mechanisms for monitoring in speech production
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The roles of shared vs. distinctive conceptual features in lexical access
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No specific role for the manual motor system in processing the meanings of words related to the hand
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