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1
The Role of the Dorsolateral Prefrontal Cortex for Speech and Language Processing
In: Front Hum Neurosci (2021)
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2
A "Birdsong Perspective" on Human Speech Production
In: Birdsong, speech, and language : exploring the evolution of mind and brain (2016), S. 331-352
Leibniz-Zentrum Allgemeine Sprachwissenschaft
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3
New Developments in Understanding the Complexity of Human Speech Production
Simonyan, Kristina; Ackermann, Hermann; Chang, Edward F.. - : Society for Neuroscience, 2016
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4
Network Modeling for Functional Magnetic Resonance Imaging (fMRI) Signals during Ultra-Fast Speech Comprehension in Late-Blind Listeners
Dietrich, Susanne; Hertrich, Ingo; Ackermann, Hermann. - : Public Library of Science, 2015
Abstract: In many functional magnetic resonance imaging (fMRI) studies blind humans were found to show cross-modal reorganization engaging the visual system in non-visual tasks. For example, blind people can manage to understand (synthetic) spoken language at very high speaking rates up to ca. 20 syllables/s (syl/s). FMRI data showed that hemodynamic activation within right-hemispheric primary visual cortex (V1), bilateral pulvinar (Pv), and left-hemispheric supplementary motor area (pre-SMA) covaried with their capability of ultra-fast speech (16 syllables/s) comprehension. It has been suggested that right V1 plays an important role with respect to the perception of ultra-fast speech features, particularly the detection of syllable onsets. Furthermore, left pre-SMA seems to be an interface between these syllabic representations and the frontal speech processing and working memory network. So far, little is known about the networks linking V1 to Pv, auditory cortex (A1), and (mesio-) frontal areas. Dynamic causal modeling (DCM) was applied to investigate (i) the input structure from A1 and Pv toward right V1 and (ii) output from right V1 and A1 to left pre-SMA. As concerns the input Pv was significantly connected to V1, in addition to A1, in blind participants, but not in sighted controls. Regarding the output V1 was significantly connected to pre-SMA in blind individuals, and the strength of V1-SMA connectivity correlated with the performance of ultra-fast speech comprehension. By contrast, in sighted controls, not understanding ultra-fast speech, pre-SMA did neither receive input from A1 nor V1. Taken together, right V1 might facilitate the “parsing” of the ultra-fast speech stream in blind subjects by receiving subcortical auditory input via the Pv (= secondary visual pathway) and transmitting this information toward contralateral pre-SMA.
Keyword: Research Article
URL: https://doi.org/10.1371/journal.pone.0132196
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4492787/
http://www.ncbi.nlm.nih.gov/pubmed/26148062
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5
Experience-Related Structural Changes of Degenerated Occipital White Matter in Late-Blind Humans – A Diffusion Tensor Imaging Study
Dietrich, Susanne; Hertrich, Ingo; Kumar, Vinod. - : Public Library of Science, 2015
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6
The role of pre-SMA for time-critical speech perception : a transcranial magnetic stimulation (TMS) study
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7
Cortical and fibre tract interrelations in conduction aphasia
In: Aphasiology. - London [u.a.] : Routledge, Taylor & Francis Group 28 (2014) 10, 1151-1167
OLC Linguistik
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8
Neural bases of phonological and articulatory processing
In: The Oxford handbook of language production (Oxford, 2014), p. 275-291
MPI für Psycholinguistik
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9
Brain mechanisms of acoustic communication in humans and nonhuman primates: An evolutionary perspective
In: Behavioral and Brain Sciences (2014)
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10
Phylogenetic reorganization of the basal ganglia: A necessary, but not the only, bridge over a primate Rubicon of acoustic communication
In: Behavioral and Brain Sciences (2014)
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11
Cortical and fibre tract interrelations in conduction aphasia
In: Aphasiology. - 28, 10 (2014) , 1151-1167, ISSN: 0268-7038 (2014)
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12
The contribution of the cerebellum to speech and language
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 127 (2013) 3, 315-316
OLC Linguistik
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13
Language aptitude for pronunciation in advanced second language (L2) Learners: Behavioural predictors and neural substrates
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 127 (2013) 3, 366-376
OLC Linguistik
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14
Tracking the speech signal – Time-locked MEG signals during perception of ultra-fast and moderately fast speech in blind and in sighted listeners
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 124 (2013) 1, 9-21
OLC Linguistik
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15
A "birdsong perspective" on human speech production
In: Birdsong, speech and language (Cambridge, 2013), p. 331-352
MPI für Psycholinguistik
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16
A "birdsong perspective" on human speech production
In: Birdsong, speech and language (Cambridge, 2013), p. 331-352
MPI für Psycholinguistik
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17
Training of ultra-fast speech comprehension induces functional reorganization of the central-visual system in late-blind humans
Dietrich, Susanne; Hertrich, Ingo; Ackermann, Hermann. - : Frontiers Media S.A., 2013
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18
How can audiovisual pathways enhance the temporal resolution of time-compressed speech in blind subjects?
Hertrich, Ingo; Dietrich, Susanne; Ackermann, Hermann. - : Frontiers Media S.A., 2013
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19
Magnetic brain activity phase-locked to the envelope, the syllable onsets, and the fundamental frequency of a perceived speech signal
Hertrich, Ingo; Dietrich, Susanne; Ackermann, Hermann. - : Wiley - Blackwell, 2012
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20
Aphasie
Ackermann, Hermann. - : Stuttgart : Kohlhammer, 2012
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