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Niemczak CE, Montagnese B, Levy J, Fellows AM, Gui J, Leigh SM, Magohe A, Massawe ER, Buckey JC. Machine learning for predicting cognitive deficits using auditory and demographic factors. PLoS One 2024; 19:e0302902. [PMID: 38743715 PMCID: PMC11093307 DOI: 10.1371/journal.pone.0302902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 04/15/2024] [Indexed: 05/16/2024] Open
Abstract
IMPORTANCE Predicting neurocognitive deficits using complex auditory assessments could change how cognitive dysfunction is identified, and monitored over time. Detecting cognitive impairment in people living with HIV (PLWH) is important for early intervention, especially in low- to middle-income countries where most cases exist. Auditory tests relate to neurocognitive test results, but the incremental predictive capability beyond demographic factors is unknown. OBJECTIVE Use machine learning to predict neurocognitive deficits, using auditory tests and demographic factors. SETTING The Infectious Disease Center in Dar es Salaam, Tanzania. PARTICIPANTS Participants were 939 Tanzanian individuals from Dar es Salaam living with and without HIV who were part of a longitudinal study. Patients who had only one visit, a positive history of ear drainage, concussion, significant noise or chemical exposure, neurological disease, mental illness, or exposure to ototoxic antibiotics (e.g., gentamycin), or chemotherapy were excluded. This provided 478 participants (349 PLWH, 129 HIV-negative). Participant data were randomized to training and test sets for machine learning. MAIN OUTCOME(S) AND MEASURE(S) The main outcome was whether auditory variables combined with relevant demographic variables could predict neurocognitive dysfunction (defined as a score of <26 on the Kiswahili Montreal Cognitive Assessment) better than demographic factors alone. The performance of predictive machine learning algorithms was primarily evaluated using the area under the receiver operational characteristic curve. Secondary metrics for evaluation included F1 scores, accuracies, and the Youden's indices for the algorithms. RESULTS The percentage of individuals with cognitive deficits was 36.2% (139 PLWH and 34 HIV-negative). The Gaussian and kernel naïve Bayes classifiers were the most predictive algorithms for neurocognitive impairment. Algorithms trained with auditory variables had average area under the curve values of 0.91 and 0.87, F1 scores (metric for precision and recall) of 0.81 and 0.76, and average accuracies of 86.3% and 81.9% respectively. Algorithms trained without auditory variables as features were statistically worse (p < .001) in both the primary measure of area under the curve (0.82/0.78) and the secondary measure of accuracy (72.3%/74.5%) for the Gaussian and kernel algorithms respectively. CONCLUSIONS AND RELEVANCE Auditory variables improved the prediction of cognitive function. Since auditory tests are easy-to-administer and often naturalistic tasks, they may offer objective measures or predictors of neurocognitive performance suitable for many global settings. Further research and development into using machine learning algorithms for predicting cognitive outcomes should be pursued.
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Affiliation(s)
- Christopher E. Niemczak
- Geisel School of Medicine at Dartmouth, Space Medicine Innovations Laboratory, Lebanon, NH, United States of America
- Dartmouth Health, Department of Medicine, Division of Hyperbaric Medicine, Lebanon, NH, United States of America
| | - Basile Montagnese
- Geisel School of Medicine at Dartmouth, Space Medicine Innovations Laboratory, Lebanon, NH, United States of America
| | - Joshua Levy
- Dartmouth Health, Department of Pathology and Laboratory Medicine, Lebanon, NH, United States of America
- Dartmouth Health, Department of Dermatology, Lebanon, NH, United States of America
- Geisel School of Medicine at Dartmouth, Epidemiology, Lebanon, NH, United States of America
- Geisel School of Medicine at Dartmouth, Program in Quantitative Biomedical Sciences, Lebanon, NH, United States of America
| | - Abigail M. Fellows
- Dartmouth Health, Department of Medicine, Division of Hyperbaric Medicine, Lebanon, NH, United States of America
| | - Jiang Gui
- Geisel School of Medicine at Dartmouth, Program in Quantitative Biomedical Sciences, Lebanon, NH, United States of America
- Geisel School of Medicine at Dartmouth, Biomedical Data Science, Lebanon, NH, United States of America
| | - Samantha M. Leigh
- Dartmouth Health, Department of Medicine, Division of Hyperbaric Medicine, Lebanon, NH, United States of America
| | - Albert Magohe
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Enica R. Massawe
- Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Jay C. Buckey
- Geisel School of Medicine at Dartmouth, Space Medicine Innovations Laboratory, Lebanon, NH, United States of America
- Dartmouth Health, Department of Medicine, Division of Hyperbaric Medicine, Lebanon, NH, United States of America
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Elmer S, Kurthen I, Meyer M, Giroud N. A multidimensional characterization of the neurocognitive architecture underlying age-related temporal speech processing. Neuroimage 2023; 278:120285. [PMID: 37481009 DOI: 10.1016/j.neuroimage.2023.120285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/11/2023] [Accepted: 07/19/2023] [Indexed: 07/24/2023] Open
Abstract
Healthy aging is often associated with speech comprehension difficulties in everyday life situations despite a pure-tone hearing threshold in the normative range. Drawing on this background, we used a multidimensional approach to assess the functional and structural neural correlates underlying age-related temporal speech processing while controlling for pure-tone hearing acuity. Accordingly, we combined structural magnetic resonance imaging and electroencephalography, and collected behavioral data while younger and older adults completed a phonetic categorization and discrimination task with consonant-vowel syllables varying along a voice-onset time continuum. The behavioral results confirmed age-related temporal speech processing singularities which were reflected in a shift of the boundary of the psychometric categorization function, with older adults perceiving more syllable characterized by a short voice-onset time as /ta/ compared to younger adults. Furthermore, despite the absence of any between-group differences in phonetic discrimination abilities, older adults demonstrated longer N100/P200 latencies as well as increased P200 amplitudes while processing the consonant-vowel syllables varying in voice-onset time. Finally, older adults also exhibited a divergent anatomical gray matter infrastructure in bilateral auditory-related and frontal brain regions, as manifested in reduced cortical thickness and surface area. Notably, in the younger adults but not in the older adult cohort, cortical surface area in these two gross anatomical clusters correlated with the categorization of consonant-vowel syllables characterized by a short voice-onset time, suggesting the existence of a critical gray matter threshold that is crucial for consistent mapping of phonetic categories varying along the temporal dimension. Taken together, our results highlight the multifaceted dimensions of age-related temporal speech processing characteristics, and pave the way toward a better understanding of the relationships between hearing, speech and the brain in older age.
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Affiliation(s)
- Stefan Elmer
- Department of Computational Linguistics, Computational Neuroscience of Speech & Hearing, University of Zurich, Zurich, Switzerland; Competence center Language & Medicine, University of Zurich, Switzerland.
| | - Ira Kurthen
- Department of Computational Linguistics, Computational Neuroscience of Speech & Hearing, University of Zurich, Zurich, Switzerland
| | - Martin Meyer
- Department of Comparative Language Science, University of Zurich, Zurich, Switzerland; Center for Neuroscience Zurich, University and ETH of Zurich, Zurich, Switzerland; Center for the Interdisciplinary Study of Language Evolution (ISLE), University of Zurich, Zurich, Switzerland; Cognitive Psychology Unit, Alpen-Adria University, Klagenfurt, Austria
| | - Nathalie Giroud
- Department of Computational Linguistics, Computational Neuroscience of Speech & Hearing, University of Zurich, Zurich, Switzerland; Center for Neuroscience Zurich, University and ETH of Zurich, Zurich, Switzerland; Competence center Language & Medicine, University of Zurich, Switzerland
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McCall JD, DeMarco AT, Mandal AS, Fama ME, van der Stelt CM, Lacey EH, Laks AB, Snider SF, Friedman RB, Turkeltaub PE. Listening to Yourself and Watching Your Tongue: Distinct Abilities and Brain Regions for Monitoring Semantic and Phonological Speech Errors. J Cogn Neurosci 2023; 35:1169-1194. [PMID: 37159232 PMCID: PMC10273223 DOI: 10.1162/jocn_a_02000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Despite the many mistakes we make while speaking, people can effectively communicate because we monitor our speech errors. However, the cognitive abilities and brain structures that support speech error monitoring are unclear. There may be different abilities and brain regions that support monitoring phonological speech errors versus monitoring semantic speech errors. We investigated speech, language, and cognitive control abilities that relate to detecting phonological and semantic speech errors in 41 individuals with aphasia who underwent detailed cognitive testing. Then, we used support vector regression lesion symptom mapping to identify brain regions supporting detection of phonological versus semantic errors in a group of 76 individuals with aphasia. The results revealed that motor speech deficits as well as lesions to the ventral motor cortex were related to reduced detection of phonological errors relative to semantic errors. Detection of semantic errors selectively related to auditory word comprehension deficits. Across all error types, poor cognitive control related to reduced detection. We conclude that monitoring of phonological and semantic errors relies on distinct cognitive abilities and brain regions. Furthermore, we identified cognitive control as a shared cognitive basis for monitoring all types of speech errors. These findings refine and expand our understanding of the neurocognitive basis of speech error monitoring.
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Affiliation(s)
- Joshua D McCall
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
| | - Andrew T DeMarco
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
- Rehabilitation Medicine Department, Georgetown University Medical Center, Washington, DC
| | - Ayan S Mandal
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
- Brain-Gene Development Lab, Psychiatry Department, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Mackenzie E Fama
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
- Department of Speech, Language, and Hearing Sciences, The George Washington University, Washington, DC
| | - Candace M van der Stelt
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
- Research Division, MedStar National Rehabilitation Hospital, Washington, DC
| | - Elizabeth H Lacey
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
- Research Division, MedStar National Rehabilitation Hospital, Washington, DC
| | - Alycia B Laks
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
| | - Sarah F Snider
- Center for Aphasia Research and Rehabilitation, Georgetown University Medical Center, Washington, DC
| | - Rhonda B Friedman
- Center for Aphasia Research and Rehabilitation, Georgetown University Medical Center, Washington, DC
| | - Peter E Turkeltaub
- Center for Brain Plasticity and Recovery, Neurology Department, Georgetown University Medical Center, Washington, DC
- Rehabilitation Medicine Department, Georgetown University Medical Center, Washington, DC
- Research Division, MedStar National Rehabilitation Hospital, Washington, DC
- Center for Aphasia Research and Rehabilitation, Georgetown University Medical Center, Washington, DC
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Xu F, Xu Y, Wang Y, Niu K, Li Y, Wang P, Li Y, Sun J, Chen Q, Wang X. Language-related brain areas in childhood epilepsy with centrotemporal spikes studied with MEG. Clin Neurophysiol 2023; 152:11-21. [PMID: 37257319 DOI: 10.1016/j.clinph.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 06/02/2023]
Abstract
OBJECTIVE Children with self-limited epilepsy with centrotemporal spikes (SeLECTS) typically indicate cognitive impairment with widespread speech impairment. We explored how epilepsy affects language-related brain areas and areas in their vicinity. METHODS Twenty-two children with SeLECTS and declined verbal comprehension (DVC), 21 with SeLECTS and normal verbal comprehension (NVC), and 23 healthy controls (HCs) underwent high-sampling magnetoencephalography recordings. According to a previous study, 24 language-related regions of interest were selected bilaterally, and the relative spectral power was estimated using a minimum norm estimate. RESULTS The highest mean power spectral density was observed in the delta band for the DVC group, in the theta band for the NVC group, and in the alpha band for HCs within language-specific brain regions. The distinctions between the DVC and NVC groups in the delta and theta frequency bands were primarily concentrated in the right linguistic brain area. CONCLUSIONS Children with SeLECTS may have developmental problems in language-related brain areas, with different developmental levels observed in the DVC, NVC, and HC groups. The DVC group could have inferior speech comprehension due to a more significant number of seizures and more left-sided spike locations. SIGNIFICANCE Children having SeLECTS showed impaired brain maturation, leading to associated language impairment.
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Affiliation(s)
- Fengyuan Xu
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yue Xu
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yingfan Wang
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Kai Niu
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yihan Li
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Pengfei Wang
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yanzhang Li
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Jintao Sun
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Qiqi Chen
- Country MEG Center, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaoshan Wang
- Country Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.
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Dynamic auditory contributions to error detection revealed in the discrimination of Same and Different syllable pairs. Neuropsychologia 2022; 176:108388. [PMID: 36183800 DOI: 10.1016/j.neuropsychologia.2022.108388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 09/20/2022] [Accepted: 09/27/2022] [Indexed: 11/22/2022]
Abstract
During speech production auditory regions operate in concert with the anterior dorsal stream to facilitate online error detection. As the dorsal stream also is known to activate in speech perception, the purpose of the current study was to probe the role of auditory regions in error detection during auditory discrimination tasks as stimuli are encoded and maintained in working memory. A priori assumptions are that sensory mismatch (i.e., error) occurs during the discrimination of Different (mismatched) but not Same (matched) syllable pairs. Independent component analysis was applied to raw EEG data recorded from 42 participants to identify bilateral auditory alpha rhythms, which were decomposed across time and frequency to reveal robust patterns of event related synchronization (ERS; inhibition) and desynchronization (ERD; processing) over the time course of discrimination events. Results were characterized by bilateral peri-stimulus alpha ERD transitioning to alpha ERS in the late trial epoch, with ERD interpreted as evidence of working memory encoding via Analysis by Synthesis and ERS considered evidence of speech-induced-suppression arising during covert articulatory rehearsal to facilitate working memory maintenance. The transition from ERD to ERS occurred later in the left hemisphere in Different trials than in Same trials, with ERD and ERS temporally overlapping during the early post-stimulus window. Results were interpreted to suggest that the sensory mismatch (i.e., error) arising from the comparison of the first and second syllable elicits further processing in the left hemisphere to support working memory encoding and maintenance. Results are consistent with auditory contributions to error detection during both encoding and maintenance stages of working memory, with encoding stage error detection associated with stimulus concordance and maintenance stage error detection associated with task-specific retention demands.
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Zhang J, Shang D, Ye J, Ling Y, Zhong S, Zhang S, Zhang W, Zhang L, Yu Y, He F, Ye X, Luo B. Altered Coupling Between Cerebral Blood Flow and Voxel-Mirrored Homotopic Connectivity Affects Stroke-Induced Speech Comprehension Deficits. Front Aging Neurosci 2022; 14:922154. [PMID: 35813962 PMCID: PMC9260239 DOI: 10.3389/fnagi.2022.922154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/07/2022] [Indexed: 11/24/2022] Open
Abstract
The neurophysiological basis of the association between interhemispheric connectivity and speech comprehension processing remains unclear. This prospective study examined regional cerebral blood flow (CBF), homotopic functional connectivity, and neurovascular coupling, and their effects on comprehension performance in post-stroke aphasia. Multimodal imaging data (including data from functional magnetic resonance imaging and arterial spin labeling imaging) of 19 patients with post-stroke aphasia and 22 healthy volunteers were collected. CBF, voxel-mirrored homotopic connectivity (VMHC), CBF-VMHC correlation, and CBF/VMHC ratio maps were calculated. Between-group comparisons were performed to identify neurovascular changes, and correlation analyses were conducted to examine their relationship with the comprehension domain. The correlation between CBF and VMHC of the global gray matter decreased in patients with post-stroke aphasia. The total speech comprehension score was significantly associated with VMHC in the peri-Wernicke area [posterior superior temporal sulcus (pSTS): r = 0.748, p = 0.001; rostroventral area 39: r = 0.641, p = 0.008]. The decreased CBF/VMHC ratio was also mainly associated with the peri-Wernicke temporoparietal areas. Additionally, a negative relationship between the mean CBF/VMHC ratio of the cingulate gyrus subregion and sentence-level comprehension was observed (r = −0.658, p = 0.006). These findings indicate the contribution of peri-Wernicke homotopic functional connectivity to speech comprehension and reveal that abnormal neurovascular coupling of the cingulate gyrus subregion may underly comprehension deficits in patients with post-stroke aphasia.
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Affiliation(s)
- Jie Zhang
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- Department of Neurology, Brain Medical Center, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Desheng Shang
- Department of Radiology, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Ye
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Yi Ling
- Department of Neurology, Brain Medical Center, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Shuchang Zhong
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Shuangshuang Zhang
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Wei Zhang
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Li Zhang
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Yamei Yu
- Department of Neurology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fangping He
- Department of Neurology, Brain Medical Center, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xiangming Ye
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
- *Correspondence: Xiangming Ye,
| | - Benyan Luo
- Department of Neurology, Brain Medical Center, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
- Collaborative Innovation Center for Brain Science, Zhejiang University School of Medicine, Hangzhou, China
- Benyan Luo,
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Rødland E, Melleby KM, Specht K. Evaluation of a Simple Clinical Language Paradigm With Respect to Sensory Independency, Functional Asymmetry, and Effective Connectivity. Front Behav Neurosci 2022; 16:806520. [PMID: 35309683 PMCID: PMC8928437 DOI: 10.3389/fnbeh.2022.806520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/10/2022] [Indexed: 01/18/2023] Open
Abstract
The present study replicates a known visual language paradigm, and extends it to a paradigm that is independent from the sensory modality of the stimuli and, hence, could be administered either visually or aurally, such that both patients with limited sight or hearing could be examined. The stimuli were simple sentences, but required the subject not only to understand the content of the sentence but also to formulate a response that had a semantic relation to the content of the presented sentence. Thereby, this paradigm does not only test perception of the stimuli, but also to some extend sentence and semantic processing, and covert speech production within one task. When the sensory base-line condition was subtracted, both the auditory and visual version of the paradigm demonstrated a broadly overlapping and asymmetric network, comprising distinct areas of the left posterior temporal lobe, left inferior frontal areas, left precentral gyrus, and supplementary motor area. The consistency of activations and their asymmetry was evaluated with a conjunction analysis, probability maps, and intraclass correlation coefficients (ICC). This underlying network was further analyzed with dynamic causal modeling (DCM) to explore whether not only the same brain areas were involved, but also the network structure and information flow were the same between the sensory modalities. In conclusion, the paradigm reliably activated the most central parts of the speech and language network with a great consistency across subjects, and independently of whether the stimuli were administered aurally or visually. However, there was individual variability in the degree of functional asymmetry between the two sensory conditions.
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Affiliation(s)
- Erik Rødland
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- Division of Psychiatry, Department of Child and Adolescent, Haukeland University Hospital, Bergen, Norway
| | - Kathrine Midgaard Melleby
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- Adult Habilitation Section, Telemark Hospital Skien, Skien, Norway
| | - Karsten Specht
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
- Mohn Medical Imaging and Visualization Centre, Haukeland University Hospital, Bergen, Norway
- Department of Education, UiT The Arctic University of Norway, Tromsø, Norway
- *Correspondence: Karsten Specht,
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Jenson D. Audiovisual incongruence differentially impacts left and right hemisphere sensorimotor oscillations: Potential applications to production. PLoS One 2021; 16:e0258335. [PMID: 34618866 PMCID: PMC8496780 DOI: 10.1371/journal.pone.0258335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 09/26/2021] [Indexed: 11/21/2022] Open
Abstract
Speech production gives rise to distinct auditory and somatosensory feedback signals which are dynamically integrated to enable online monitoring and error correction, though it remains unclear how the sensorimotor system supports the integration of these multimodal signals. Capitalizing on the parity of sensorimotor processes supporting perception and production, the current study employed the McGurk paradigm to induce multimodal sensory congruence/incongruence. EEG data from a cohort of 39 typical speakers were decomposed with independent component analysis to identify bilateral mu rhythms; indices of sensorimotor activity. Subsequent time-frequency analyses revealed bilateral patterns of event related desynchronization (ERD) across alpha and beta frequency ranges over the time course of perceptual events. Right mu activity was characterized by reduced ERD during all cases of audiovisual incongruence, while left mu activity was attenuated and protracted in McGurk trials eliciting sensory fusion. Results were interpreted to suggest distinct hemispheric contributions, with right hemisphere mu activity supporting a coarse incongruence detection process and left hemisphere mu activity reflecting a more granular level of analysis including phonological identification and incongruence resolution. Findings are also considered in regard to incongruence detection and resolution processes during production.
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Affiliation(s)
- David Jenson
- Department of Speech and Hearing Sciences, Washington State University, Spokane, Washington, United States of America
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9
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Niemczak CE, Lichtenstein JD, Magohe A, Amato JT, Fellows AM, Gui J, Huang M, Rieke CC, Massawe ER, Boivin MJ, Moshi N, Buckey JC. The Relationship Between Central Auditory Tests and Neurocognitive Domains in Adults Living With HIV. Front Neurosci 2021; 15:696513. [PMID: 34658754 PMCID: PMC8517794 DOI: 10.3389/fnins.2021.696513] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 09/07/2021] [Indexed: 12/21/2022] Open
Abstract
Objective: Tests requiring central auditory processing, such as speech perception-in-noise, are simple, time efficient, and correlate with cognitive processing. These tests may be useful for tracking brain function. Doing this effectively requires information on which tests correlate with overall cognitive function and specific cognitive domains. This study evaluated the relationship between selected central auditory focused tests and cognitive domains in a cohort of normal hearing adults living with HIV and HIV- controls. The long-term aim is determining the relationships between auditory processing and neurocognitive domains and applying this to analyzing cognitive function in HIV and other neurocognitive disorders longitudinally. Method: Subjects were recruited from an ongoing study in Dar es Salaam, Tanzania. Central auditory measures included the Gap Detection Test (Gap), Hearing in Noise Test (HINT), and Triple Digit Test (TDT). Cognitive measures included variables from the Test of Variables of Attention (TOVA), Cogstate neurocognitive battery, and Kiswahili Montreal Cognitive Assessment (MoCA). The measures represented three cognitive domains: processing speed, learning, and working memory. Bootstrap resampling was used to calculate the mean and standard deviation of the proportion of variance explained by the individual central auditory tests for each cognitive measure. The association of cognitive measures with central auditory variables taking HIV status and age into account was determined using regression models. Results: Hearing in Noise Tests and TDT were significantly associated with Cogstate learning and working memory tests. Gap was not significantly associated with any cognitive measure with age in the model. TDT explained the largest mean proportion of variance and had the strongest relationship to the MoCA and Cogstate tasks. With age in the model, HIV status did not affect the relationship between central auditory tests and cognitive measures. Age was strongly associated with multiple cognitive tests. Conclusion: Central auditory tests were associated with measures of learning and working memory. Compared to the other central auditory tests, TDT was most strongly related to cognitive function. These findings expand on the association between auditory processing and cognitive domains seen in other studies and support evaluating these tests for tracking brain health in HIV and other neurocognitive disorders.
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Affiliation(s)
- Christopher E. Niemczak
- Space Medicine Innovations Laboratory, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
| | - Jonathan D. Lichtenstein
- Dartmouth-Hitchcock Medical Center, Lebanon, NH, United States
- Department of Psychiatry, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
| | - Albert Magohe
- Department of Otorhinolaryngology, Muhimibili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Jennifer T. Amato
- Dartmouth-Hitchcock Medical Center, Lebanon, NH, United States
- Department of Psychiatry, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
| | - Abigail M. Fellows
- Space Medicine Innovations Laboratory, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
| | - Jiang Gui
- Department of Data Science, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
| | - Michael Huang
- Space Medicine Innovations Laboratory, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
| | - Catherine C. Rieke
- Space Medicine Innovations Laboratory, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
- Dartmouth-Hitchcock Medical Center, Lebanon, NH, United States
| | - Enica R. Massawe
- Department of Otorhinolaryngology, Muhimibili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Michael J. Boivin
- Department of Psychiatry, Michigan State University, East Lansing, MI, United States
| | - Ndeserua Moshi
- Department of Otorhinolaryngology, Muhimibili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Jay C. Buckey
- Space Medicine Innovations Laboratory, Geisel School of Medicine, Dartmouth College, Hanover, NH, United States
- Dartmouth-Hitchcock Medical Center, Lebanon, NH, United States
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Jenson D, Saltuklaroglu T. Sensorimotor contributions to working memory differ between the discrimination of Same and Different syllable pairs. Neuropsychologia 2021; 159:107947. [PMID: 34216594 DOI: 10.1016/j.neuropsychologia.2021.107947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 02/01/2021] [Accepted: 06/27/2021] [Indexed: 10/21/2022]
Abstract
Sensorimotor activity during speech perception is both pervasive and highly variable, changing as a function of the cognitive demands imposed by the task. The purpose of the current study was to evaluate whether the discrimination of Same (matched) and Different (unmatched) syllable pairs elicit different patterns of sensorimotor activity as stimuli are processed in working memory. Raw EEG data recorded from 42 participants were decomposed with independent component analysis to identify bilateral sensorimotor mu rhythms from 36 subjects. Time frequency decomposition of mu rhythms revealed concurrent event related desynchronization (ERD) in alpha and beta frequency bands across the peri- and post-stimulus time periods, which were interpreted as evidence of sensorimotor contributions to working memory encoding and maintenance. Left hemisphere alpha/beta ERD was stronger in Different trials than Same trials during the post-stimulus period, while right hemisphere alpha/beta ERD was stronger in Same trials than Different trials. A between-hemispheres contrast revealed no differences during Same trials, while post-stimulus alpha/beta ERD was stronger in the left hemisphere than the right during Different trials. Results were interpreted to suggest that predictive coding mechanisms lead to repetition suppression effects in Same trials. Mismatches arising from predictive coding mechanisms in Different trials shift subsequent working memory processing to the speech-dominant left hemisphere. Findings clarify how sensorimotor activity differentially supports working memory encoding and maintenance stages during speech discrimination tasks and have potential to inform sensorimotor models of speech perception and working memory.
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Affiliation(s)
- David Jenson
- Washington State University, Elson S. Floyd College of Medicine, Department of Speech and Hearing Sciences, Spokane, WA, USA.
| | - Tim Saltuklaroglu
- University of Tennessee Health Science Center, College of Health Professions, Department of Audiology and Speech-Pathology, Knoxville, TN, USA
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11
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Vansteensel MJ, Selten IS, Charbonnier L, Berezutskaya J, Raemaekers MAH, Ramsey NF, Wijnen F. Reduced brain activation during spoken language processing in children with developmental language disorder and children with 22q11.2 deletion syndrome. Neuropsychologia 2021; 158:107907. [PMID: 34058175 DOI: 10.1016/j.neuropsychologia.2021.107907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 05/19/2021] [Accepted: 05/19/2021] [Indexed: 01/03/2023]
Abstract
Language difficulties of children with Developmental Language Disorder (DLD) have been associated with multiple underlying factors and are still poorly understood. One way of investigating the mechanisms of DLD language problems is to compare language-related brain activation patterns of children with DLD to those of a population with similar language difficulties and a uniform etiology. Children with 22q11.2 deletion syndrome (22q11DS) constitute such a population. Here, we conducted an fMRI study, in which children (6-10yo) with DLD and 22q11DS listened to speech alternated with reversed speech. We compared language laterality and language-related brain activation levels with those of typically developing (TD) children who performed the same task. The data revealed no significant differences between groups in language lateralization, but task-related activation levels were lower in children with language impairment than in TD children in several nodes of the language network. We conclude that language impairment in children with DLD and in children with 22q11DS may involve (partially) overlapping cortical areas.
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Affiliation(s)
- Mariska J Vansteensel
- UMC Utrecht Brain Center, Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands.
| | - Iris S Selten
- Utrecht Institute of Linguistics (UIL-OTS), Utrecht University, Utrecht, the Netherlands
| | - Lisette Charbonnier
- UMC Utrecht Brain Center, Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Julia Berezutskaya
- UMC Utrecht Brain Center, Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Mathijs A H Raemaekers
- UMC Utrecht Brain Center, Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Nick F Ramsey
- UMC Utrecht Brain Center, Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Frank Wijnen
- Utrecht Institute of Linguistics (UIL-OTS), Utrecht University, Utrecht, the Netherlands
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12
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Burton H, Reeder RM, Holden T, Agato A, Firszt JB. Cortical Regions Activated by Spectrally Degraded Speech in Adults With Single Sided Deafness or Bilateral Normal Hearing. Front Neurosci 2021; 15:618326. [PMID: 33897343 PMCID: PMC8058229 DOI: 10.3389/fnins.2021.618326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 03/04/2021] [Indexed: 11/13/2022] Open
Abstract
Those with profound sensorineural hearing loss from single sided deafness (SSD) generally experience greater cognitive effort and fatigue in adverse sound environments. We studied cases with right ear, SSD compared to normal hearing (NH) individuals. SSD cases were significantly less correct in naming last words in spectrally degraded 8- and 16-band vocoded sentences, despite high semantic predictability. Group differences were not significant for less intelligible 4-band sentences, irrespective of predictability. SSD also had diminished BOLD percent signal changes to these same sentences in left hemisphere (LH) cortical regions of early auditory, association auditory, inferior frontal, premotor, inferior parietal, dorsolateral prefrontal, posterior cingulate, temporal-parietal-occipital junction, and posterior opercular. Cortical regions with lower amplitude responses in SSD than NH were mostly components of a LH language network, previously noted as concerned with speech recognition. Recorded BOLD signal magnitudes were averages from all vertices within predefined parcels from these cortex regions. Parcels from different regions in SSD showed significantly larger signal magnitudes to sentences of greater intelligibility (e.g., 8- or 16- vs. 4-band) in all except early auditory and posterior cingulate cortex. Significantly lower response magnitudes occurred in SSD than NH in regions prior studies found responsible for phonetics and phonology of speech, cognitive extraction of meaning, controlled retrieval of word meaning, and semantics. The findings suggested reduced activation of a LH fronto-temporo-parietal network in SSD contributed to difficulty processing speech for word meaning and sentence semantics. Effortful listening experienced by SSD might reflect diminished activation to degraded speech in the affected LH language network parcels. SSD showed no compensatory activity in matched right hemisphere parcels.
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Affiliation(s)
- Harold Burton
- Department of Neuroscience, Washington University School of Medicine, Saint Louis, MO, United States
| | - Ruth M Reeder
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, Saint Louis, MO, United States
| | - Tim Holden
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, Saint Louis, MO, United States
| | - Alvin Agato
- Department of Neuroscience, Washington University School of Medicine, Saint Louis, MO, United States
| | - Jill B Firszt
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, Saint Louis, MO, United States
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13
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Heggdal POL, Larsen KS, Brännström J, Aarstad HJ, Specht K. Reduced grey- and white matter volumes due to unilateral hearing loss following treatment for vestibular schwannoma. Heliyon 2020; 6:e05658. [PMID: 33364477 PMCID: PMC7754525 DOI: 10.1016/j.heliyon.2020.e05658] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 12/10/2019] [Accepted: 11/30/2020] [Indexed: 12/21/2022] Open
Abstract
Objective Previous studies of the consequences of unilateral hearing loss (UHL) on the functional-structural organization of the brain has included subjects with various degrees of UHL. We suggest that the consequences of a total loss of hearing in one ear might differ from those seen in subjects with residual hearing in the affected ear. Thus, the main aim of the present study was to compare the structural properties of auditory and non-auditory brain regions in persons with complete UHL to those of normal hearing controls. We hypothesize that the consequences of complete UHL following treatment for vestibular schwannoma will differ between ipsi- and contralateral structures, as well as between right- and left side deafness. Design A 3T Siemens Prisma MR-scanner was used. Anatomical images were acquired using a high-resolution T1-weighted sequence. Grey- and white matter volumes were assessed using voxel-based morphometry. Study sample Twenty-two patients with left- or right-side unilateral hearing loss. Fifty normal hearing controls. Results Reductions in grey- and white matter volumes were seen in cortical and sub-cortical regions, mainly in the right hemisphere including the auditory cortex, lingual gyrus, cuneus, middle temporal gyrus, occipital fusiform gyrus, middle cingulate gyrus and the superior temporal gyrus. Patients displayed reduced grey- and white matter volumes in cerebellar exterior structures ipsilateral to the tumor side. Conclusion When compared to controls, right side hearing loss yields more widespread reduction of grey matter volume than left side hearing loss. The findings of reduced grey- and white matter volumes in auditory and non-auditory brain regions could be related to problems with speech perception in adverse listening conditions, increased listening effort and reduced quality of life reported by persons with unilateral hearing loss despite normal hearing in the unaffected ear.
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Affiliation(s)
- Peder O. Laugen Heggdal
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
- Department of Otolaryngology/Head and Neck Surgery, Haukeland University Hospital, PB 1400, 5021 Bergen, Norway
- Corresponding author.
| | - Kristina S. Larsen
- Department of Otolaryngology/Head and Neck Surgery, Haukeland University Hospital, PB 1400, 5021 Bergen, Norway
| | - Jonas Brännström
- Department of Clinical Science, Section of Logopedics, Phoniatrics and Audiology, Lund University, Box 117, 221 00 Lund, Sweden
| | - Hans Jørgen Aarstad
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
- Department of Otolaryngology/Head and Neck Surgery, Haukeland University Hospital, PB 1400, 5021 Bergen, Norway
| | - Karsten Specht
- Department of Biological and Medical Psychology, University of Bergen, PB 7807, 5020 Bergen, Norway
- Department of Education, UiT/The Arctic University of Norway, Tromsø, Norway
- Mohn Medical Imaging and Visualization Center, Haukeland University Hospital, Bergen, Norway
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14
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Friston KJ, Parr T, Yufik Y, Sajid N, Price CJ, Holmes E. Generative models, linguistic communication and active inference. Neurosci Biobehav Rev 2020; 118:42-64. [PMID: 32687883 PMCID: PMC7758713 DOI: 10.1016/j.neubiorev.2020.07.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/26/2020] [Accepted: 07/08/2020] [Indexed: 11/24/2022]
Abstract
This paper presents a biologically plausible generative model and inference scheme that is capable of simulating communication between synthetic subjects who talk to each other. Building on active inference formulations of dyadic interactions, we simulate linguistic exchange to explore generative models that support dialogues. These models employ high-order interactions among abstract (discrete) states in deep (hierarchical) models. The sequential nature of language processing mandates generative models with a particular factorial structure-necessary to accommodate the rich combinatorics of language. We illustrate linguistic communication by simulating a synthetic subject who can play the 'Twenty Questions' game. In this game, synthetic subjects take the role of the questioner or answerer, using the same generative model. This simulation setup is used to illustrate some key architectural points and demonstrate that many behavioural and neurophysiological correlates of linguistic communication emerge under variational (marginal) message passing, given the right kind of generative model. For example, we show that theta-gamma coupling is an emergent property of belief updating, when listening to another.
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Affiliation(s)
- Karl J Friston
- The Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, 12 Queen Square, London, WC1N 3AR, UK.
| | - Thomas Parr
- The Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, 12 Queen Square, London, WC1N 3AR, UK.
| | - Yan Yufik
- Virtual Structures Research, Inc., 12204 Saint James Rd, Potomac, MD 20854, USA.
| | - Noor Sajid
- The Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, 12 Queen Square, London, WC1N 3AR, UK.
| | - Catherine J Price
- The Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, 12 Queen Square, London, WC1N 3AR, UK.
| | - Emma Holmes
- The Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of Neurology, 12 Queen Square, London, WC1N 3AR, UK.
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15
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Stankova EP, Kruchinina OV, Shepovalnikov AN, Galperina EI. Evolution of the Central Mechanisms
of Oral Speech. J EVOL BIOCHEM PHYS+ 2020. [DOI: 10.1134/s0022093020030011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Hjelmervik H, Craven AR, Sinceviciute I, Johnsen E, Kompus K, Bless JJ, Kroken RA, Løberg EM, Ersland L, Grüner R, Hugdahl K. Intra-Regional Glu-GABA vs Inter-Regional Glu-Glu Imbalance: A 1H-MRS Study of the Neurochemistry of Auditory Verbal Hallucinations in Schizophrenia. Schizophr Bull 2020; 46:633-642. [PMID: 31626702 PMCID: PMC7147588 DOI: 10.1093/schbul/sbz099] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Glutamate (Glu), gamma amino-butyric acid (GABA), and excitatory/inhibitory (E/I) imbalance have inconsistently been implicated in the etiology of schizophrenia. Elevated Glu levels in language regions have been suggested to mediate auditory verbal hallucinations (AVH), the same regions previously associated with neuronal hyperactivity during AVHs. It is, however, not known whether alterations in Glu levels are accompanied by corresponding GABA alterations, nor is it known if Glu levels are affected in brain regions with known neuronal hypo-activity. Using magnetic resonance spectroscopy (MRS), we measured Glx (Glu+glutamine) and GABA+ levels in the anterior cingulate cortex (ACC), left and right superior temporal gyrus (STG), and left inferior frontal gyrus (IFG), in a sample of 77 schizophrenia patients and 77 healthy controls. Two MRS-protocols were used. Results showed a marginally significant positive correlation in the left STG between Glx and AVHs, whereas a significant negative correlation was found in the ACC. In addition, high-hallucinating patients as a group showed decreased ACC and increased left STG Glx levels compared to low-hallucinating patients, with the healthy controls in between the 2 hallucinating groups. No significant differences were found for GABA+ levels. It is discussed that reduced ACC Glx levels reflect an inability of AVH patients to cognitively inhibit their "voices" through neuronal hypo-activity, which in turn originates from increased left STG Glu levels and neuronal hyperactivity. A revised E/I-imbalance model is proposed where Glu-Glu imbalance between brain regions is emphasized rather than Glu-GABA imbalance within regions, for the understanding of the underlying neurochemistry of AVHs.
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Affiliation(s)
- Helene Hjelmervik
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.,NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway
| | - Alexander R Craven
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.,NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway
| | - Igne Sinceviciute
- NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway.,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway
| | - Erik Johnsen
- NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway.,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine (K1), University of Bergen, Bergen, Norway
| | - Kristiina Kompus
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.,NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway
| | - Josef J Bless
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Rune A Kroken
- NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway.,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine (K1), University of Bergen, Bergen, Norway
| | - Else-Marie Løberg
- NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway.,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.,Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Psychology, University of Bergen, Bergen, Norway
| | - Lars Ersland
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.,NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Engineering, Haukeland University Hospital, Bergen, Norway
| | - Renate Grüner
- NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway.,Department of Radiology, Haukeland University Hospital, Bergen, Norway.,Department of Physics and Technology, University of Bergen, Bergen, Norway
| | - Kenneth Hugdahl
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.,NORMENT Center of Excellence, Haukeland University Hospital, Bergen, Norway.,Division of Psychiatry, Haukeland University Hospital, Bergen, Norway.,Department of Radiology, Haukeland University Hospital, Bergen, Norway
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17
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Zora H, Rudner M, Montell Magnusson AK. Concurrent affective and linguistic prosody with the same emotional valence elicits a late positive ERP response. Eur J Neurosci 2019; 51:2236-2249. [PMID: 31872480 PMCID: PMC7383972 DOI: 10.1111/ejn.14658] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 11/22/2019] [Accepted: 12/18/2019] [Indexed: 01/07/2023]
Abstract
Change in linguistic prosody generates a mismatch negativity response (MMN), indicating neural representation of linguistic prosody, while change in affective prosody generates a positive response (P3a), reflecting its motivational salience. However, the neural response to concurrent affective and linguistic prosody is unknown. The present paper investigates the integration of these two prosodic features in the brain by examining the neural response to separate and concurrent processing by electroencephalography (EEG). A spoken pair of Swedish words—[ˈfɑ́ːsɛn] phase and [ˈfɑ̀ːsɛn] damn—that differed in emotional semantics due to linguistic prosody was presented to 16 subjects in an angry and neutral affective prosody using a passive auditory oddball paradigm. Acoustically matched pseudowords—[ˈvɑ́ːsɛm] and [ˈvɑ̀ːsɛm]—were used as controls. Following the constructionist concept of emotions, accentuating the conceptualization of emotions based on language, it was hypothesized that concurrent affective and linguistic prosody with the same valence—angry [ˈfɑ̀ːsɛn] damn—would elicit a unique late EEG signature, reflecting the temporal integration of affective voice with emotional semantics of prosodic origin. In accordance, linguistic prosody elicited an MMN at 300–350 ms, and affective prosody evoked a P3a at 350–400 ms, irrespective of semantics. Beyond these responses, concurrent affective and linguistic prosody evoked a late positive component (LPC) at 820–870 ms in frontal areas, indicating the conceptualization of affective prosody based on linguistic prosody. This study provides evidence that the brain does not only distinguish between these two functions of prosody but also integrates them based on language and experience.
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Affiliation(s)
- Hatice Zora
- Department of Linguistics, Stockholm University, Stockholm, Sweden
| | - Mary Rudner
- Department of Behavioral Sciences and Learning, Linköping University, Linköping, Sweden
| | - Anna K Montell Magnusson
- Department of Behavioral Sciences and Learning, Linköping University, Linköping, Sweden.,Department of Clinical Science, Intervention, and Technology, Karolinska Institutet, Stockholm, Sweden.,Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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18
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Heggdal POL, Aarstad HJ, Brännström J, Vassbotn FS, Specht K. An fMRI-study on single-sided deafness: Spectral-temporal properties and side of stimulation modulates hemispheric dominance. NEUROIMAGE-CLINICAL 2019; 24:101969. [PMID: 31419767 PMCID: PMC6706639 DOI: 10.1016/j.nicl.2019.101969] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 07/21/2019] [Accepted: 08/03/2019] [Indexed: 11/18/2022]
Abstract
Objective Our main aim was to investigate the blood oxygenation level dependent (BOLD) response to monaural and binaural speech- and non-speech stimuli as measured with fMRI in subjects with single-sided deafness and in normal hearing controls. We hypothesised that the response to monaural stimulation in both normal hearing subjects and persons with single-sided deafness would vary with the complexity and nature of the stimuli and the side of stimulation. Design Patients with left- and right single-sided deafness and controls with normal hearing receiving either binaural or monaural stimuli were tested using speech and non-speech auditory stimuli in an event-related fMRI experiment. Study sample Twenty-two patients with single-sided deafness after treatment for vestibular schwannoma and 50 normal hearing controls. Results Normal hearing persons receiving right side monaural stimuli activate bilateral temporal regions. Activation following left side monaural stimulation is more right lateralized. Persons with single-sided deafness respond similarly to controls to monaural stimulation. Persons with right side single-sided deafness show activation of frontal cortical regions not seen in persons with left side single-sided deafness following speech stimuli. This is possibly related to increased effort and more frequently reported problems with communication. Right side single-sided deafness is related to increased activation of areas usually related to processing of degraded input, including the thalamus. Conclusion Hemispheric dominance following monaural auditory stimulation is modulated by the spectral-temporal properties of the stimuli and by which ear is stimulated. Differences between patients with right- and left side deafness suggests that right side deafness is related to increased activation of areas involved in processing of degraded input. Hemispheric dominance following monaural stimulation is modulated by stimuli properties and by which ear is stimulated Results suggests that right side deafness is related to increased activation of eares involved in processing degraded input Self-assessed communication ability and the BOLD-response to phonetic stimuli correlate in several brain regions.
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Affiliation(s)
- Peder O Laugen Heggdal
- Department of Clinical Medicine, Faculty of Medicine and Dentistry, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway; Department of Otolaryngology/Head and Neck Surgery, Haukeland University Hospital, PB 1400, 5021 Bergen, Norway.
| | - Hans Jørgen Aarstad
- Department of Clinical Medicine, Faculty of Medicine and Dentistry, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway; Department of Otolaryngology/Head and Neck Surgery, Haukeland University Hospital, PB 1400, 5021 Bergen, Norway.
| | - Jonas Brännström
- Department of Clinical Science, Section of logopedics, Phoniatrics and Audiology, Lund University, Box 117, 22100 Lund, Sweden.
| | - Flemming S Vassbotn
- Department of Otolaryngology/Head and Neck Surgery, Haukeland University Hospital, PB 1400, 5021 Bergen, Norway.
| | - Karsten Specht
- Department of Biological and Medical Psychology, University of Bergen, PB 7807, 5020 Bergen, Norway; Department of Education, UiT/The Arctic University of Norway, Tromsø, Norway.
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19
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Mattsson TS, Lind O, Follestad T, Grøndahl K, Wilson W, Nicholas J, Nordgård S, Andersson S. Electrophysiological characteristics in children with listening difficulties, with or without auditory processing disorder. Int J Audiol 2019; 58:704-716. [PMID: 31154863 DOI: 10.1080/14992027.2019.1621396] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Objective: To determine if the auditory middle latency responses (AMLR), auditory late latency response (ALLR) and auditory P300 were sensitive to auditory processing disorder (APD) and listening difficulties in children, and further to elucidate mechanisms regarding level of neurobiological problems in the central auditory nervous system. Design: Three-group, repeated measure design. Study sample: Forty-six children aged 8-14 years were divided into three groups: children with reported listening difficulties fulfilling APD diagnostic criteria, children with reported listening difficulties not fulfilling APD diagnostic criteria and normally hearing children. Results: AMLR Na latency and P300 latency and amplitude were sensitive to listening difficulties. No other auditory evoked potential (AEP) measures were sensitive to listening difficulties, and no AEP measures were sensitive to APD only. Moderate correlations were observed between P300 latency and amplitude and the behavioural AP measures of competing words, frequency patterns, duration patterns and dichotic digits. Conclusions: Impaired thalamo-cortical (bottom up) and neurocognitive function (top-down) may contribute to difficulties discriminating speech and non-speech sounds. Cognitive processes involved in conscious recognition, attention and discrimination of the acoustic characteristics of the stimuli could contribute to listening difficulties in general, and to APD in particular.
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Affiliation(s)
- Tone Stokkereit Mattsson
- Department of Otorhinolaryngology, Head and Neck Surgery, Ålesund Hospital , Aalesund , Norway.,Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology , Trondheim , Norway
| | - Ola Lind
- Department of Otorhinolaryngology, Head and Neck Surgery, Haukeland University Hospital , Bergen , Norway
| | - Turid Follestad
- Department of Public Health and General Practice, Norwegian University of Science and Technology , Trondheim , Norway
| | - Kjell Grøndahl
- Department of Clinical Engineering, Haukeland University Hospital , Bergen , Norway
| | - Wayne Wilson
- School of Health and Rehabilitation Sciences, The University of Queensland , Brisbane , Australia
| | - Jude Nicholas
- Statped National Service Center for Special Needs Education , Bergen , Norway.,Department of Occupational Medicine, Haukeland University Hospital , Bergen , Norway
| | - Ståle Nordgård
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology , Trondheim , Norway.,Department of Otorhinolaryngology, Head and Neck Surgery, St. Olavs University Hospital , Trondheim , Norway
| | - Stein Andersson
- Department of Psychology, University of Oslo , Oslo , Norway
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20
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Keller M, Neuschwander P, Meyer M. When right becomes less right: Neural dedifferentiation during suprasegmental speech processing in the aging brain. Neuroimage 2019; 189:886-895. [DOI: 10.1016/j.neuroimage.2019.01.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 01/27/2023] Open
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21
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Westerhausen R. A primer on dichotic listening as a paradigm for the assessment of hemispheric asymmetry. Laterality 2019; 24:740-771. [DOI: 10.1080/1357650x.2019.1598426] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- René Westerhausen
- Center for Lifespan Changes in Brain and Cognition (LCBC), Department of Psychology, University of Oslo, Oslo, Norway
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
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22
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Goossens T, Vercammen C, Wouters J, van Wieringen A. The association between hearing impairment and neural envelope encoding at different ages. Neurobiol Aging 2019; 74:202-212. [DOI: 10.1016/j.neurobiolaging.2018.10.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 09/11/2018] [Accepted: 10/04/2018] [Indexed: 10/28/2022]
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23
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Thornton D, Harkrider AW, Jenson DE, Saltuklaroglu T. Sex differences in early sensorimotor processing for speech discrimination. Sci Rep 2019; 9:392. [PMID: 30674942 PMCID: PMC6344575 DOI: 10.1038/s41598-018-36775-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 11/12/2018] [Indexed: 11/08/2022] Open
Abstract
Sensorimotor activity in speech perception tasks varies as a function of context, cognitive load, and cognitive ability. This study investigated listener sex as an additional variable. Raw EEG data were collected as 21 males and 21 females discriminated /ba/ and /da/ in quiet and noisy backgrounds. Independent component analyses of data from accurately discriminated trials identified sensorimotor mu components with characteristic alpha and beta peaks from 16 members of each sex. Time-frequency decompositions showed that in quiet discrimination, females displayed stronger early mu-alpha synchronization, whereas males showed stronger mu-beta desynchronization. Findings indicate that early attentional mechanisms for speech discrimination were characterized by sensorimotor inhibition in females and predictive sensorimotor activation in males. Both sexes showed stronger early sensorimotor inhibition in noisy discrimination conditions versus in quiet, suggesting sensory gating of the noise. However, the difference in neural activation between quiet and noisy conditions was greater in males than females. Though sex differences appear unrelated to behavioral accuracy, they suggest that males and females exhibit early sensorimotor processing for speech discrimination that is fundamentally different, yet similarly adaptable to adverse conditions. Findings have implications for understanding variability in neuroimaging data and the male prevalence in various neurodevelopmental disorders with inhibitory dysfunction.
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Affiliation(s)
| | - Ashley W Harkrider
- University of Tennessee Health Science Center, Knoxville, TN, 37996, USA
| | - David E Jenson
- Elson S. Floyd College of Medicine, Washington State University, Spokane, WA, 99202, USA
| | - Tim Saltuklaroglu
- University of Tennessee Health Science Center, Knoxville, TN, 37996, USA
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Specht K, Wigglesworth P. The functional and structural asymmetries of the superior temporal sulcus. Scand J Psychol 2018; 59:74-82. [PMID: 29356006 DOI: 10.1111/sjop.12410] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 10/01/2017] [Indexed: 01/09/2023]
Abstract
The superior temporal sulcus (STS) is an anatomical structure that increasingly interests researchers. This structure appears to receive multisensory input and is involved in several perceptual and cognitive core functions, such as speech perception, audiovisual integration, (biological) motion processing and theory of mind capacities. In addition, the superior temporal sulcus is not only one of the longest sulci of the brain, but it also shows marked functional and structural asymmetries, some of which have only been found in humans. To explore the functional-structural relationships of these asymmetries in more detail, this study combines functional and structural magnetic resonance imaging. Using a speech perception task, an audiovisual integration task, and a theory of mind task, this study again demonstrated an involvement of the STS in these processes, with an expected strong leftward asymmetry for the speech perception task. Furthermore, this study confirmed the earlier described, human-specific asymmetries, namely that the left STS is longer than the right STS and that the right STS is deeper than the left STS. However, this study did not find any relationship between these structural asymmetries and the detected brain activations or their functional asymmetries. This can, on the other hand, give further support to the notion that the structural asymmetry of the STS is not directly related to the functional asymmetry of the speech perception and the language system as a whole, but that it may have other causes and functions.
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Affiliation(s)
- Karsten Specht
- Department of Biological and Medical Psychology, University of Bergen, Norway.,Department of Education, UiT/The Arctic University of Norway, Tromsø, Norway
| | - Philip Wigglesworth
- Department of Behavioural Sciences, Oslo, and Akershus University College of Applied Sciences, Oslo, Norway
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van Rootselaar NA, Flindall JW, Gonzalez CLR. Hear speech, change your reach: changes in the left-hand grasp-to-eat action during speech processing. Exp Brain Res 2018; 236:3267-3277. [PMID: 30229305 DOI: 10.1007/s00221-018-5376-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 09/06/2018] [Indexed: 11/29/2022]
Abstract
Research has shown that the kinematic characteristics of right-hand movements change when executed during both speech production and processing. Despite the variety of prehension and manual actions used to examine this relationship, the literature has yet to examine potential movement effects using an action with a distinct kinematic signature: the hand-to-mouth (grasp-to-eat) action. In this study, participants performed grasp-to-eat and grasp-to-place actions in (a) a quiet environment and (b) while processing speech. Results during the quiet condition replicated the previous findings; consistently smaller grasp-to-eat (compared to grasp-to-place), maximum grip apertures appeared only when using the right hand. Interestingly, in the listen condition, smaller maximum grip apertures in the grasp-to-eat movement appeared in both the right and left hands, despite the fact that participants were right-handed. This paper addresses these results in relation with similar behaviour observed in children, and discusses implications for functional lateralization and neural organization.
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Affiliation(s)
- Nicole A van Rootselaar
- The Brain in Action Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.
| | - Jason W Flindall
- The Brain in Action Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada
| | - Claudia L R Gonzalez
- The Brain in Action Laboratory, Department of Kinesiology and Physical Education, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada
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Tanigawa J, Kagitani-Shimono K, Matsuzaki J, Ogawa R, Hanaie R, Yamamoto T, Tominaga K, Nabatame S, Mohri I, Taniike M, Ozono K. Atypical auditory language processing in adolescents with autism spectrum disorder. Clin Neurophysiol 2018; 129:2029-2037. [PMID: 29934264 DOI: 10.1016/j.clinph.2018.05.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 05/01/2018] [Accepted: 05/08/2018] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Individuals with autism spectrum disorder (ASD) often show characteristic differences in auditory processing. To clarify the mechanisms underlying communication impairment in ASD, we examined auditory language processing with both anatomical and functional methods. METHODS We assessed the language abilities of adolescents with ASD and typically developing (TD) adolescents, and analyzed the surface-based morphometric structure between the groups using magnetic resonance imaging. Furthermore, we measured cortical responses to an auditory word comprehension task with magnetoencephalography and performed network-based statistics using the phase locking values. RESULTS We observed no structural differences between the groups. However, the volume of the left ventral central sulcus (vCS) showed a significant correlation with linguistic scores in ASD. Moreover, adolescents with ASD showed weaker cortical activation in the left vCS and superior temporal sulcus. Furthermore, these regions showed differential correlations with linguistic scores between the groups. Moreover, the ASD group had an atypical gamma band (25-40 Hz) network centered on the left vCS. CONCLUSIONS Adolescents with ASD showed atypical responses on the auditory word comprehension task and functional brain differences. SIGNIFICANCE Our results suggest that phonological processing and gamma band cortical activity play a critical role in auditory language processing-related pathophysiology in adolescents with ASD.
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Affiliation(s)
- Junpei Tanigawa
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Kuriko Kagitani-Shimono
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Junko Matsuzaki
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Rei Ogawa
- Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Ryuzo Hanaie
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Tomoka Yamamoto
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Koji Tominaga
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Shin Nabatame
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Ikuko Mohri
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Masako Taniike
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
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Hjelmervik H, Hausmann M, Craven AR, Hirnstein M, Hugdahl K, Specht K. Sex- and sex hormone-related variations in energy-metabolic frontal brain asymmetries: A magnetic resonance spectroscopy study. Neuroimage 2018; 172:817-825. [DOI: 10.1016/j.neuroimage.2018.01.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/22/2017] [Accepted: 01/17/2018] [Indexed: 12/26/2022] Open
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Kittilstved T, Reilly KJ, Harkrider AW, Casenhiser D, Thornton D, Jenson DE, Hedinger T, Bowers AL, Saltuklaroglu T. The Effects of Fluency Enhancing Conditions on Sensorimotor Control of Speech in Typically Fluent Speakers: An EEG Mu Rhythm Study. Front Hum Neurosci 2018; 12:126. [PMID: 29670516 PMCID: PMC5893846 DOI: 10.3389/fnhum.2018.00126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/16/2018] [Indexed: 01/04/2023] Open
Abstract
Objective: To determine whether changes in sensorimotor control resulting from speaking conditions that induce fluency in people who stutter (PWS) can be measured using electroencephalographic (EEG) mu rhythms in neurotypical speakers. Methods: Non-stuttering (NS) adults spoke in one control condition (solo speaking) and four experimental conditions (choral speech, delayed auditory feedback (DAF), prolonged speech and pseudostuttering). Independent component analysis (ICA) was used to identify sensorimotor μ components from EEG recordings. Time-frequency analyses measured μ-alpha (8–13 Hz) and μ-beta (15–25 Hz) event-related synchronization (ERS) and desynchronization (ERD) during each speech condition. Results: 19/24 participants contributed μ components. Relative to the control condition, the choral and DAF conditions elicited increases in μ-alpha ERD in the right hemisphere. In the pseudostuttering condition, increases in μ-beta ERD were observed in the left hemisphere. No differences were present between the prolonged speech and control conditions. Conclusions: Differences observed in the experimental conditions are thought to reflect sensorimotor control changes. Increases in right hemisphere μ-alpha ERD likely reflect increased reliance on auditory information, including auditory feedback, during the choral and DAF conditions. In the left hemisphere, increases in μ-beta ERD during pseudostuttering may have resulted from the different movement characteristics of this task compared with the solo speaking task. Relationships to findings in stuttering are discussed. Significance: Changes in sensorimotor control related feedforward and feedback control in fluency-enhancing speech manipulations can be measured using time-frequency decompositions of EEG μ rhythms in neurotypical speakers. This quiet, non-invasive, and temporally sensitive technique may be applied to learn more about normal sensorimotor control and fluency enhancement in PWS.
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Affiliation(s)
- Tiffani Kittilstved
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
| | - Kevin J Reilly
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
| | - Ashley W Harkrider
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
| | - Devin Casenhiser
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
| | - David Thornton
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
| | - David E Jenson
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
| | - Tricia Hedinger
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
| | - Andrew L Bowers
- Department of Communication Disorders, The University of Arkansas, Fayetteville, AR, United States
| | - Tim Saltuklaroglu
- Department of Audiology and Speech Pathology, The University of Tennessee Health Science Center, Knoxville, TN, United States
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Ghaleh M, Skipper-Kallal LM, Xing S, Lacey E, DeWitt I, DeMarco A, Turkeltaub P. Phonotactic processing deficit following left-hemisphere stroke. Cortex 2018; 99:346-357. [PMID: 29351881 PMCID: PMC5801128 DOI: 10.1016/j.cortex.2017.12.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 10/19/2017] [Accepted: 12/11/2017] [Indexed: 11/25/2022]
Abstract
The neural basis of speech processing is still a matter of great debate. Phonotactic knowledge-knowledge of the allowable sound combinations in a language-remains particularly understudied. The purpose of this study was to investigate the brain regions crucial to phonotactic knowledge in left-hemisphere stroke survivors. Results were compared to areas in which gray matter anatomy related to phonotactic knowledge in healthy controls. 44 patients with chronic left-hemisphere stroke, and 32 controls performed an English-likeness rating task on 60 auditory non-words of varying phonotactic regularities. They were asked to rate on a 1-5 scale, how close each non-word sounded to English. Patients' performance was compared to that of healthy controls, using mixed effects modeling. Multivariate lesion-symptom mapping and voxel-based morphometry were used to find the brain regions important for phonotactic processing in patients and controls respectively. The results showed that compared to controls, stroke survivors were less sensitive to phonotactic regularity differences. Lesion-symptom mapping demonstrated that a loss of sensitivity to phonotactic regularities was associated with lesions in left angular gyrus and posterior middle temporal gyrus. Voxel-based morphometry also revealed a positive correlation between gray matter density in left angular gyrus and sensitivity to phonotactic regularities in controls. We suggest that the angular gyrus is used to compare the incoming speech stream to internal predictions based on the frequency of sound sequences in the language derived from stored lexical representations in the posterior middle temporal gyrus.
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Affiliation(s)
- Maryam Ghaleh
- Georgetown University Medical Center, Neurology Department, Washington, DC, USA.
| | | | - Shihui Xing
- Georgetown University Medical Center, Neurology Department, Washington, DC, USA; Department of Neurology, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Elizabeth Lacey
- Georgetown University Medical Center, Neurology Department, Washington, DC, USA; MedStar National Rehabilitation Hospital, Washington, DC, USA
| | - Iain DeWitt
- Brain Imaging and Modeling Section, NIH/NIDCD, Bethesda, MD, USA
| | - Andrew DeMarco
- Georgetown University Medical Center, Neurology Department, Washington, DC, USA
| | - Peter Turkeltaub
- Georgetown University Medical Center, Neurology Department, Washington, DC, USA; MedStar National Rehabilitation Hospital, Washington, DC, USA.
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fMRI as a Preimplant Objective Tool to Predict Postimplant Oral Language Outcomes in Children with Cochlear Implants. Ear Hear 2018; 37:e263-72. [PMID: 26689275 DOI: 10.1097/aud.0000000000000259] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Despite the positive effects of cochlear implantation, postimplant variability in speech perception and oral language outcomes is still difficult to predict. The aim of this study was to identify neuroimaging biomarkers of postimplant speech perception and oral language performance in children with hearing loss who receive a cochlear implant. The authors hypothesized positive correlations between blood oxygen level-dependent functional magnetic resonance imaging (fMRI) activation in brain regions related to auditory language processing and attention and scores on the Clinical Evaluation of Language Fundamentals-Preschool, Second Edition (CELF-P2) and the Early Speech Perception Test for Profoundly Hearing-Impaired Children (ESP), in children with congenital hearing loss. DESIGN Eleven children with congenital hearing loss were recruited for the present study based on referral for clinical MRI and other inclusion criteria. All participants were <24 months at fMRI scanning and <36 months at first implantation. A silent background fMRI acquisition method was performed to acquire fMRI during auditory stimulation. A voxel-based analysis technique was utilized to generate z maps showing significant contrast in brain activation between auditory stimulation conditions (spoken narratives and narrow band noise). CELF-P2 and ESP were administered 2 years after implantation. Because most participants reached a ceiling on ESP, a voxel-wise regression analysis was performed between preimplant fMRI activation and postimplant CELF-P2 scores alone. Age at implantation and preimplant hearing thresholds were controlled in this regression analysis. RESULTS Four brain regions were found to be significantly correlated with CELF-P2 scores. These clusters of positive correlation encompassed the temporo-parieto-occipital junction, areas in the prefrontal cortex and the cingulate gyrus. For the story versus silence contrast, CELF-P2 core language score demonstrated significant positive correlation with activation in the right angular gyrus (r = 0.95), left medial frontal gyrus (r = 0.94), and left cingulate gyrus (r = 0.96). For the narrow band noise versus silence contrast, the CELF-P2 core language score exhibited significant positive correlation with activation in the left angular gyrus (r = 0.89; for all clusters, corrected p < 0.05). CONCLUSIONS Four brain regions related to language function and attention were identified that correlated with CELF-P2. Children with better oral language performance postimplant displayed greater activation in these regions preimplant. The results suggest that despite auditory deprivation, these regions are more receptive to gains in oral language development performance of children with hearing loss who receive early intervention via cochlear implantation. The present study suggests that oral language outcome following cochlear implant may be predicted by preimplant fMRI with auditory stimulation using natural speech.
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Morken F, Helland T, Hugdahl K, Specht K. Reading in dyslexia across literacy development: A longitudinal study of effective connectivity. Neuroimage 2017; 144:92-100. [DOI: 10.1016/j.neuroimage.2016.09.060] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 08/24/2016] [Accepted: 09/25/2016] [Indexed: 10/20/2022] Open
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Hugdahl K, Westerhausen R. Speech processing asymmetry revealed by dichotic listening and functional brain imaging. Neuropsychologia 2016; 93:466-481. [DOI: 10.1016/j.neuropsychologia.2015.12.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 12/02/2015] [Accepted: 12/15/2015] [Indexed: 10/22/2022]
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Friston K, FitzGerald T, Rigoli F, Schwartenbeck P, Pezzulo G. Active Inference: A Process Theory. Neural Comput 2016; 29:1-49. [PMID: 27870614 DOI: 10.1162/neco_a_00912] [Citation(s) in RCA: 425] [Impact Index Per Article: 53.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This article describes a process theory based on active inference and belief propagation. Starting from the premise that all neuronal processing (and action selection) can be explained by maximizing Bayesian model evidence-or minimizing variational free energy-we ask whether neuronal responses can be described as a gradient descent on variational free energy. Using a standard (Markov decision process) generative model, we derive the neuronal dynamics implicit in this description and reproduce a remarkable range of well-characterized neuronal phenomena. These include repetition suppression, mismatch negativity, violation responses, place-cell activity, phase precession, theta sequences, theta-gamma coupling, evidence accumulation, race-to-bound dynamics, and transfer of dopamine responses. Furthermore, the (approximately Bayes' optimal) behavior prescribed by these dynamics has a degree of face validity, providing a formal explanation for reward seeking, context learning, and epistemic foraging. Technically, the fact that a gradient descent appears to be a valid description of neuronal activity means that variational free energy is a Lyapunov function for neuronal dynamics, which therefore conform to Hamilton's principle of least action.
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Affiliation(s)
- Karl Friston
- Wellcome Trust Centre for Neuroimaging, UCL, London WC1N 3BG, U.K.
| | - Thomas FitzGerald
- Wellcome Trust Centre for Neuroimaging, UCL, London WC1N 3BG, U.K., and Max Planck-UCL Centre for Computational Psychiatry and Ageing Research, London WC1B 5BE, U.K.
| | - Francesco Rigoli
- Wellcome Trust Centre for Neuroimaging, UCL, London WC1N 3BG, U.K.
| | - Philipp Schwartenbeck
- Wellcome Trust Centre for Neuroimaging, UCL, London WC1N 3BG, U.K.; Max Planck-UCL Centre for Computational Psychiatry and Ageing Research, London, WC1B 5BE, U.K.; Centre for Neurocognitive Research, University of Salzburg, 5020 Salzburg, Austria; and Neuroscience Institute, Christian-Doppler-Klinik, Paracelsus Medical University Salzburg, A-5020 Salzburg, Austria
| | - Giovanni Pezzulo
- Institute of Cognitive Sciences and Technologies, National Research Council, 00185 Rome, Italy
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Chen WF, Chao PC, Chang YN, Hsu CH, Lee CY. Effects of orthographic consistency and homophone density on Chinese spoken word recognition. BRAIN AND LANGUAGE 2016; 157-158:51-62. [PMID: 27174851 DOI: 10.1016/j.bandl.2016.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 04/17/2016] [Accepted: 04/18/2016] [Indexed: 06/05/2023]
Abstract
Studies of alphabetic language have shown that orthographic knowledge influences phonological processing during spoken word recognition. This study utilized the Event-Related Potentials (ERPs) to differentiate two types of phonology-to-orthography (P-to-O) mapping consistencies in Chinese, namely homophone density and orthographic consistency. The ERP data revealed an orthographic consistency effect in the frontal-centrally distributed N400, and a homophone density effect in central-posteriorly distributed late positive component (LPC). Further source analyses using the standardized low-resolution electromagnetic tomography (sLORETA) demonstrated that the orthographic effect was not only localized in the frontal and temporal-parietal regions for phonological processing, but also in the posterior visual cortex for orthographic processing, while the homophone density effect was found in middle temporal gyrus for lexical-semantic selection, and in the temporal-occipital junction for orthographic processing. These results suggest that orthographic information not only shapes the nature of phonological representations, but may also be activated during on-line spoken word recognition.
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Affiliation(s)
- Wei-Fan Chen
- Institute of Linguistics, Academia Sinica, 128 Academia Road, Section 2, 11529 Taipei, Taiwan
| | - Pei-Chun Chao
- Institute of Neuroscience, National Yang-Ming University, 155 Linong Street, Section 2, 11221 Taipei, Taiwan
| | - Ya-Ning Chang
- Institute of Linguistics, Academia Sinica, 128 Academia Road, Section 2, 11529 Taipei, Taiwan; Department of Psychology, Lancaster University, Lancaster LA1 4YF, UK
| | - Chun-Hsien Hsu
- Institute of Linguistics, Academia Sinica, 128 Academia Road, Section 2, 11529 Taipei, Taiwan
| | - Chia-Ying Lee
- Institute of Linguistics, Academia Sinica, 128 Academia Road, Section 2, 11529 Taipei, Taiwan; Institute of Neuroscience, National Yang-Ming University, 155 Linong Street, Section 2, 11221 Taipei, Taiwan; Research Center for Mind, Brain and Learning, National Chengchi University, No. 64, Sec. 2, ZhiNan Rd., Wenshan District, 11605 Taipei, Taiwan; Institute of Cognitive Neuroscience, National Central University, No. 300, Jhongda Rd., Jhongli 32001, Taoyuan, Taiwan.
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Desmurget M, Sirigu A. Revealing humans' sensorimotor functions with electrical cortical stimulation. Philos Trans R Soc Lond B Biol Sci 2016; 370:20140207. [PMID: 26240422 DOI: 10.1098/rstb.2014.0207] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Direct electrical stimulation (DES) of the human brain has been used by neurosurgeons for almost a century. Although this procedure serves only clinical purposes, it generates data that have a great scientific interest. Had DES not been employed, our comprehension of the organization of the sensorimotor systems involved in movement execution, language production, the emergence of action intentionality or the subjective feeling of movement awareness would have been greatly undermined. This does not mean, of course, that DES is a gold standard devoid of limitations and that other approaches are not of primary importance, including electrophysiology, modelling, neuroimaging or psychophysics in patients and healthy subjects. Rather, this indicates that the contribution of DES cannot be restricted, in humans, to the ubiquitous concepts of homunculus and somatotopy. DES is a fundamental tool in our attempt to understand the human brain because it represents a unique method for mapping sensorimotor pathways and interfering with the functioning of localized neural populations during the performance of well-defined behavioural tasks.
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Affiliation(s)
- Michel Desmurget
- Centre de Neuroscience Cognitive, CNRS, UMR 5229, 67 boulevard Pinel, Bron 69500, France Université Claude Bernard, Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne 69100, France
| | - Angela Sirigu
- Centre de Neuroscience Cognitive, CNRS, UMR 5229, 67 boulevard Pinel, Bron 69500, France Université Claude Bernard, Lyon 1, 43 boulevard du 11 novembre 1918, Villeurbanne 69100, France
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Rufener KS, Oechslin MS, Zaehle T, Meyer M. Transcranial Alternating Current Stimulation (tACS) differentially modulates speech perception in young and older adults. Brain Stimul 2016; 9:560-5. [PMID: 27157057 DOI: 10.1016/j.brs.2016.04.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/24/2016] [Accepted: 04/01/2016] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Normal aging is accompanied by a functional decline in processing temporal features of spoken language, such as voice onset time (VOT). On an electrophysiological level, this finding is paralleled by altered patterns of gamma oscillations. OBJECTIVE Using 40 Hz transcranial alternating current stimulation (tACS) over the bilateral auditory cortex, this study aims to compare the effect of tACS to modulate VOT-processing in samples of healthy young and older adults. METHODS Twenty-five healthy young (age 20-35 years) and 20 older adults (age 60-75 years) participated in this study. Presented with an auditory phoneme categorization task participants received 40 Hz and 6 Hz tACS on two consecutive sessions. RESULTS While 40 Hz tACS diminished task accuracy in young adults, older adults benefitted from this stimulation resulting in a more precise phonetic categorization. CONCLUSION The results of the study are discussed with respect to the non-linear relationship between gamma oscillations in the vicinity of the auditory cortex and VOT-processing. The present findings are promising in the context of an intervention for subjects with impaired ability to process temporal acoustic features in the speech signal.
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Affiliation(s)
- Katharina S Rufener
- Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany; Research Unit for Neuroplasticity and Learning of the Healthy Aging Brain, University of Zurich, Switzerland.
| | - Mathias S Oechslin
- International Normal Aging and Plasticity Imaging Center, Zurich, Switzerland
| | - Tino Zaehle
- Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany
| | - Martin Meyer
- Research Unit for Neuroplasticity and Learning of the Healthy Aging Brain, University of Zurich, Switzerland; International Normal Aging and Plasticity Imaging Center, Zurich, Switzerland; University Research Priority Program "Dynamics of Healthy Aging", University of Zurich, Switzerland; Cognitive Psychology Unit (CPU), University of Klagenfurt, Klagenfurt am Wörthersee, Austria
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Bernal B, Ardila A. From Hearing Sounds to Recognizing Phonemes: Primary Auditory Cortex is A Truly Perceptual Language Area. AIMS Neurosci 2016. [DOI: 10.3934/neuroscience.2016.4.454] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Pishnamazi M, Nojaba Y, Ganjgahi H, Amousoltani A, Oghabian MA. Neural correlates of audiotactile phonetic processing in early-blind readers: an fMRI study. Exp Brain Res 2015; 234:1263-77. [DOI: 10.1007/s00221-015-4515-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 11/30/2015] [Indexed: 10/22/2022]
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Jenson D, Harkrider AW, Thornton D, Bowers AL, Saltuklaroglu T. Auditory cortical deactivation during speech production and following speech perception: an EEG investigation of the temporal dynamics of the auditory alpha rhythm. Front Hum Neurosci 2015; 9:534. [PMID: 26500519 PMCID: PMC4597480 DOI: 10.3389/fnhum.2015.00534] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 09/14/2015] [Indexed: 11/22/2022] Open
Abstract
Sensorimotor integration (SMI) across the dorsal stream enables online monitoring of speech. Jenson et al. (2014) used independent component analysis (ICA) and event related spectral perturbation (ERSP) analysis of electroencephalography (EEG) data to describe anterior sensorimotor (e.g., premotor cortex, PMC) activity during speech perception and production. The purpose of the current study was to identify and temporally map neural activity from posterior (i.e., auditory) regions of the dorsal stream in the same tasks. Perception tasks required "active" discrimination of syllable pairs (/ba/ and /da/) in quiet and noisy conditions. Production conditions required overt production of syllable pairs and nouns. ICA performed on concatenated raw 68 channel EEG data from all tasks identified bilateral "auditory" alpha (α) components in 15 of 29 participants localized to pSTG (left) and pMTG (right). ERSP analyses were performed to reveal fluctuations in the spectral power of the α rhythm clusters across time. Production conditions were characterized by significant α event related synchronization (ERS; pFDR < 0.05) concurrent with EMG activity from speech production, consistent with speech-induced auditory inhibition. Discrimination conditions were also characterized by α ERS following stimulus offset. Auditory α ERS in all conditions temporally aligned with PMC activity reported in Jenson et al. (2014). These findings are indicative of speech-induced suppression of auditory regions, possibly via efference copy. The presence of the same pattern following stimulus offset in discrimination conditions suggests that sensorimotor contributions following speech perception reflect covert replay, and that covert replay provides one source of the motor activity previously observed in some speech perception tasks. To our knowledge, this is the first time that inhibition of auditory regions by speech has been observed in real-time with the ICA/ERSP technique.
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Affiliation(s)
- David Jenson
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
| | - Ashley W. Harkrider
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
| | - David Thornton
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
| | - Andrew L. Bowers
- Department of Communication Disorders, University of ArkansasFayetteville, AR, USA
| | - Tim Saltuklaroglu
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
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Hugdahl K, Raichle ME, Mitra A, Specht K. On the existence of a generalized non-specific task-dependent network. Front Hum Neurosci 2015; 9:430. [PMID: 26300757 PMCID: PMC4526816 DOI: 10.3389/fnhum.2015.00430] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 07/13/2015] [Indexed: 02/03/2023] Open
Abstract
In this paper we suggest the existence of a generalized task-related cortical network that is up-regulated whenever the task to be performed requires the allocation of generalized non-specific cognitive resources, independent of the specifics of the task to be performed. We have labeled this general purpose network, the extrinsic mode network (EMN) as complementary to the default mode network (DMN), such that the EMN is down-regulated during periods of task-absence, when the DMN is up-regulated, and vice versa. We conceptualize the EMN as a cortical network for extrinsic neuronal activity, similar to the DMN as being a cortical network for intrinsic neuronal activity. The EMN has essentially a fronto-temporo-parietal spatial distribution, including the inferior and middle frontal gyri, inferior parietal lobule, supplementary motor area, inferior temporal gyrus. We hypothesize that this network is always active regardless of the cognitive task being performed. We further suggest that failure of network up- and down-regulation dynamics may provide neuronal underpinnings for cognitive impairments seen in many mental disorders, such as, e.g., schizophrenia. We start by describing a common observation in functional imaging, the close overlap in fronto-parietal activations in healthy individuals to tasks that denote very different cognitive processes. We now suggest that this is because the brain utilizes the EMN network as a generalized response to tasks that exceeds a cognitive demand threshold and/or requires the processing of novel information. We further discuss how the EMN is related to the DMN, and how a network for extrinsic activity is related to a network for intrinsic activity. Finally, we discuss whether the EMN and DMN networks interact in a common single brain system, rather than being two separate and independent brain systems.
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Affiliation(s)
- Kenneth Hugdahl
- Department of Biological and Medical Psychology, University of Bergen Bergen, Norway ; Division of Psychiatry, Haukeland University Hospital, Bergen Norway ; Department of Radiology, Haukeland University Hospital, Bergen Norway ; NORMENT Center of Excellence, University of Bergen Bergen, Norway
| | - Marcus E Raichle
- Department of Radiology, Washington University School of Medicine, St. Louis, MI USA
| | - Anish Mitra
- Department of Radiology, Washington University School of Medicine, St. Louis, MI USA
| | - Karsten Specht
- Department of Biological and Medical Psychology, University of Bergen Bergen, Norway ; Department of Clinical Engineering, Haukeland University Hospital, Bergen Norway
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41
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Hurschler MA, Liem F, Oechslin M, Stämpfli P, Meyer M. fMRI reveals lateralized pattern of brain activity modulated by the metrics of stimuli during auditory rhyme processing. BRAIN AND LANGUAGE 2015; 147:41-50. [PMID: 26025759 DOI: 10.1016/j.bandl.2015.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 03/09/2015] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Abstract
Our fMRI study investigates auditory rhyme processing in spoken language to further elucidate the topic of functional lateralization of language processing. During scanning, 14 subjects listened to four different types of versed word strings and subsequently performed either a rhyme or a meter detection task. Our results show lateralization to auditory-related temporal regions in the right hemisphere irrespective of task. As for the left hemisphere we report responses in the supramarginal gyrus as well as in the opercular part of the inferior frontal gyrus modulated by the presence of regular meter and rhyme. The interaction of rhyme and meter was associated with increased involvement of the superior temporal sulcus and the putamen of the right hemisphere. Overall, these findings support the notion of right-hemispheric specialization for suprasegmental analyses during processing of spoken sentences and provide neuroimaging evidence for the influence of metrics on auditory rhyme processing.
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Affiliation(s)
- Martina A Hurschler
- Univ Zurich, Inst Psychol, Neuroplasticity and Learning in the Healthy Aging Brain (HAB LAB), Zurich, Switzerland.
| | - Franziskus Liem
- Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; Univ Zurich, International Normal Aging and Plasticity Imaging Center, Zurich, Switzerland
| | - Mathias Oechslin
- Univ Zurich, International Normal Aging and Plasticity Imaging Center, Zurich, Switzerland
| | - Philipp Stämpfli
- Univ Zurich, MR-Center of the Psychiatric University Hospital and the Department of Child and Adolescent Psychiatry, Zurich, Switzerland; Univ Zurich, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, Zurich, Switzerland
| | - Martin Meyer
- Univ Zurich, Inst Psychol, Neuroplasticity and Learning in the Healthy Aging Brain (HAB LAB), Zurich, Switzerland; Univ Zurich, International Normal Aging and Plasticity Imaging Center, Zurich, Switzerland; University Research Priority Program "Dynamics of Healthy Aging", University of Zurich, Switzerland; Univ Klagenfurt, Inst Psychol, Div Cognitive Neuroscience, Klagenfurt, Austria
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42
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Jonckers E, Güntürkün O, De Groof G, Van der Linden A, Bingman VP. Network structure of functional hippocampal lateralization in birds. Hippocampus 2015; 25:1418-28. [DOI: 10.1002/hipo.22462] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2015] [Indexed: 02/02/2023]
Affiliation(s)
| | - Onur Güntürkün
- Department of Biopsychology; Institute of Cognitive Neuroscience, Faculty of Psychology, Ruhr-University Bochum; Bochum Germany
| | - Geert De Groof
- Bio-Imaging Laboratory; University of Antwerp; Antwerp Belgium
| | | | - Verner P. Bingman
- Department of Psychology; Bowling Green State University; Bowling Green Ohio
- J.P. Scott Center for Neuroscience, Mind and Behavior; Bowling Green State University; Bowling Green Ohio
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43
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Bilateral dorsal and ventral fiber pathways for the processing of affective prosody identified by probabilistic fiber tracking. Neuroimage 2015; 109:27-34. [DOI: 10.1016/j.neuroimage.2015.01.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 12/31/2014] [Accepted: 01/02/2015] [Indexed: 11/20/2022] Open
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44
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Schmälzle R, Häcker FEK, Honey CJ, Hasson U. Engaged listeners: shared neural processing of powerful political speeches. Soc Cogn Affect Neurosci 2015; 10:1137-43. [PMID: 25653012 DOI: 10.1093/scan/nsu168] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 12/24/2014] [Indexed: 11/14/2022] Open
Abstract
Powerful speeches can captivate audiences, whereas weaker speeches fail to engage their listeners. What is happening in the brains of a captivated audience? Here, we assess audience-wide functional brain dynamics during listening to speeches of varying rhetorical quality. The speeches were given by German politicians and evaluated as rhetorically powerful or weak. Listening to each of the speeches induced similar neural response time courses, as measured by inter-subject correlation analysis, in widespread brain regions involved in spoken language processing. Crucially, alignment of the time course across listeners was stronger for rhetorically powerful speeches, especially for bilateral regions of the superior temporal gyri and medial prefrontal cortex. Thus, during powerful speeches, listeners as a group are more coupled to each other, suggesting that powerful speeches are more potent in taking control of the listeners' brain responses. Weaker speeches were processed more heterogeneously, although they still prompted substantially correlated responses. These patterns of coupled neural responses bear resemblance to metaphors of resonance, which are often invoked in discussions of speech impact, and contribute to the literature on auditory attention under natural circumstances. Overall, this approach opens up possibilities for research on the neural mechanisms mediating the reception of entertaining or persuasive messages.
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Affiliation(s)
- Ralf Schmälzle
- Department of Psychology, University of Konstanz, Baden-Württemberg, Germany,
| | - Frank E K Häcker
- Department of Psychology, University of Konstanz, Baden-Württemberg, Germany
| | | | - Uri Hasson
- Department of Psychology, Princeton University, Princeton, NJ, USA
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45
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Maruta C, Makhmood S, Downey LE, Golden HL, Fletcher PD, Witoonpanich P, Rohrer JD, Warren JD. Delayed auditory feedback simulates features of nonfluent primary progressive aphasia. J Neurol Sci 2014; 347:345-8. [PMID: 25305712 PMCID: PMC4267508 DOI: 10.1016/j.jns.2014.09.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/19/2014] [Accepted: 09/22/2014] [Indexed: 11/25/2022]
Abstract
The pathophysiology of nonfluent primary progressive aphasia (nfvPPA) remains poorly understood. Here, we compared quantitatively speech parameters in patients with nfvPPA versus healthy older individuals under altered auditory feedback, which has been shown to modulate normal speech output. Patients (n = 15) and healthy volunteers (n = 17) were recorded while reading aloud under delayed auditory feedback [DAF] with latency 0, 50 or 200 ms and under DAF at 200 ms plus 0.5 octave upward pitch shift. DAF in healthy older individuals was associated with reduced speech rate and emergence of speech sound errors, particularly at latency 200 ms. Up to a third of the healthy older group under DAF showed speech slowing and frequency of speech sound errors within the range of the nfvPPA cohort. Our findings suggest that (in addition to any anterior, primary language output disorder) these key features of nfvPPA may reflect distorted speech input signal processing, as simulated by DAF. DAF may constitute a novel candidate pathophysiological model of posterior dorsal cortical language pathway dysfunction in nfvPPA. The pathophysiology of nonfluent progressive aphasia (nfvPPA) is poorly understood. Delayed auditory feedback (DAF) disrupts speech output in some normal listeners. We compared quantitatively speech in nvfPPA with DAF in healthy older individuals. Around a third of healthy older individuals under DAF developed features of nvfPPA. DAF is a candidate pathophysiological model of dorsal pathway dysfunction in nfvPPA.
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Affiliation(s)
- Carolina Maruta
- Institute of Molecular Medicine and Faculty of Medicine, University of Lisbon, Portugal; Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom
| | - Sonya Makhmood
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom
| | - Laura E Downey
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom
| | - Hannah L Golden
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom
| | - Phillip D Fletcher
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom
| | - Pirada Witoonpanich
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom
| | - Jonathan D Rohrer
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom
| | - Jason D Warren
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, United Kingdom.
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Jenson D, Bowers AL, Harkrider AW, Thornton D, Cuellar M, Saltuklaroglu T. Temporal dynamics of sensorimotor integration in speech perception and production: independent component analysis of EEG data. Front Psychol 2014; 5:656. [PMID: 25071633 PMCID: PMC4091311 DOI: 10.3389/fpsyg.2014.00656] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Accepted: 06/08/2014] [Indexed: 11/17/2022] Open
Abstract
Activity in anterior sensorimotor regions is found in speech production and some perception tasks. Yet, how sensorimotor integration supports these functions is unclear due to a lack of data examining the timing of activity from these regions. Beta (~20 Hz) and alpha (~10 Hz) spectral power within the EEG μ rhythm are considered indices of motor and somatosensory activity, respectively. In the current study, perception conditions required discrimination (same/different) of syllables pairs (/ba/ and /da/) in quiet and noisy conditions. Production conditions required covert and overt syllable productions and overt word production. Independent component analysis was performed on EEG data obtained during these conditions to (1) identify clusters of μ components common to all conditions and (2) examine real-time event-related spectral perturbations (ERSP) within alpha and beta bands. 17 and 15 out of 20 participants produced left and right μ-components, respectively, localized to precentral gyri. Discrimination conditions were characterized by significant (pFDR < 0.05) early alpha event-related synchronization (ERS) prior to and during stimulus presentation and later alpha event-related desynchronization (ERD) following stimulus offset. Beta ERD began early and gained strength across time. Differences were found between quiet and noisy discrimination conditions. Both overt syllable and word productions yielded similar alpha/beta ERD that began prior to production and was strongest during muscle activity. Findings during covert production were weaker than during overt production. One explanation for these findings is that μ-beta ERD indexes early predictive coding (e.g., internal modeling) and/or overt and covert attentional/motor processes. μ-alpha ERS may index inhibitory input to the premotor cortex from sensory regions prior to and during discrimination, while μ-alpha ERD may index sensory feedback during speech rehearsal and production.
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Affiliation(s)
- David Jenson
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
| | - Andrew L. Bowers
- Department of Communication Disorders, University of ArkansasFayetteville, AR, USA
| | - Ashley W. Harkrider
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
| | - David Thornton
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
| | - Megan Cuellar
- Speech-Language Pathology Program, College of Health Sciences, Midwestern UniversityChicago, IL, USA
| | - Tim Saltuklaroglu
- Department of Audiology and Speech Pathology, University of Tennessee Health Science CenterKnoxville, TN, USA
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Specht K, Baumgartner F, Stadler J, Hugdahl K, Pollmann S. Functional asymmetry and effective connectivity of the auditory system during speech perception is modulated by the place of articulation of the consonant- A 7T fMRI study. Front Psychol 2014; 5:549. [PMID: 24966841 PMCID: PMC4052338 DOI: 10.3389/fpsyg.2014.00549] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 05/18/2014] [Indexed: 11/16/2022] Open
Abstract
To differentiate between stop-consonants, the auditory system has to detect subtle place of articulation (PoA) and voice-onset time (VOT) differences between stop-consonants. How this differential processing is represented on the cortical level remains unclear. The present functional magnetic resonance (fMRI) study takes advantage of the superior spatial resolution and high sensitivity of ultra-high-field 7 T MRI. Subjects were attentively listening to consonant–vowel (CV) syllables with an alveolar or bilabial stop-consonant and either a short or long VOT. The results showed an overall bilateral activation pattern in the posterior temporal lobe during the processing of the CV syllables. This was however modulated strongest by PoA such that syllables with an alveolar stop-consonant showed stronger left lateralized activation. In addition, analysis of underlying functional and effective connectivity revealed an inhibitory effect of the left planum temporale (PT) onto the right auditory cortex (AC) during the processing of alveolar CV syllables. Furthermore, the connectivity result indicated also a directed information flow from the right to the left AC, and further to the left PT for all syllables. These results indicate that auditory speech perception relies on an interplay between the left and right ACs, with the left PT as modulator. Furthermore, the degree of functional asymmetry is determined by the acoustic properties of the CV syllables.
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Affiliation(s)
- Karsten Specht
- Department of Biological and Medical Psychology University of Bergen, Bergen, Norway ; Department of Medical Engineering, Haukeland University Hospital Bergen, Norway
| | - Florian Baumgartner
- Department of Experimental Psychology, Otto-von-Guericke University Magdeburg, Germany
| | - Jörg Stadler
- Leibniz Institute for Neurobiology, Magdeburg Germany
| | - Kenneth Hugdahl
- Department of Biological and Medical Psychology University of Bergen, Bergen, Norway ; Division of Psychiatry, Haukeland University Hospital Bergen, Norway ; Department of Radiology, Haukeland University Hospital Bergen, Norway ; NORMENT Senter for Fremragende Forskning Oslo Norway
| | - Stefan Pollmann
- Department of Experimental Psychology, Otto-von-Guericke University Magdeburg, Germany ; Center for Behavioral Brain Sciences Magdeburg Germany
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Bowers AL, Saltuklaroglu T, Harkrider A, Wilson M, Toner MA. Dynamic modulation of shared sensory and motor cortical rhythms mediates speech and non-speech discrimination performance. Front Psychol 2014; 5:366. [PMID: 24847290 PMCID: PMC4019855 DOI: 10.3389/fpsyg.2014.00366] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 04/07/2014] [Indexed: 01/17/2023] Open
Abstract
Oscillatory models of speech processing have proposed that rhythmic cortical oscillations in sensory and motor regions modulate speech sound processing from the bottom-up via phase reset at low frequencies (3-10 Hz) and from the top-down via the disinhibition of alpha/beta rhythms (8-30 Hz). To investigate how the proposed rhythms mediate perceptual performance, electroencephalographic (EEG) was recorded while participants passively listened to or actively identified speech and tone-sweeps in a two-force choice in noise discrimination task presented at high and low signal-to-noise ratios. EEG data were decomposed using independent component analysis and clustered across participants using principle component methods in EEGLAB. Left and right hemisphere sensorimotor and posterior temporal lobe clusters were identified. Alpha and beta suppression was associated with active tasks only in sensorimotor and temporal clusters. In posterior temporal clusters, increases in phase reset at low frequencies were driven by the quality of bottom-up acoustic information for speech and non-speech stimuli, whereas phase reset in sensorimotor clusters was associated with top-down active task demands. A comparison of correct discrimination trials to those identified at chance showed an earlier performance related effect for the left sensorimotor cluster relative to the left-temporal lobe cluster during the syllable discrimination task only. The right sensorimotor cluster was associated with performance related differences for tone-sweep stimuli only. Findings are consistent with internal model accounts suggesting that early efferent sensorimotor models transmitted along alpha and beta channels reflect a release from inhibition related to active attention to auditory discrimination. Results are discussed in the broader context of dynamic, oscillatory models of cognition proposing that top-down internally generated states interact with bottom-up sensory processing to enhance task performance.
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Affiliation(s)
- Andrew L Bowers
- Department of Communication Disorders, University of Arkansas, Fayetteville AR, USA
| | - Tim Saltuklaroglu
- Department of Audiology and Speech Pathology, University of Tennessee Health Science Center, Knoxville TN, USA
| | - Ashley Harkrider
- Department of Audiology and Speech Pathology, University of Tennessee Health Science Center, Knoxville TN, USA
| | - Matt Wilson
- School of Allied Health, Northern Illinois University, DeKalb IL, USA
| | - Mary A Toner
- Department of Communication Disorders, University of Arkansas, Fayetteville AR, USA
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Iliadou VV, Bamiou DE, Chermak GD, Nimatoudis I. Comparison of two tests of auditory temporal resolution in children with central auditory processing disorder, adults with psychosis, and adult professional musicians. Int J Audiol 2014; 53:507-13. [PMID: 24801531 DOI: 10.3109/14992027.2014.900576] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Evaluate auditory temporal resolution threshold outcomes across three different populations. DESIGN Two commercially available tests of auditory gap detection (Random gap detection (RGDT) test, and Gaps-in-noise (GIN) test) were administered to all participants. STUDY SAMPLE Adult professional musicians (APM) (N = 11, age range 28-61 years); children with central auditory processing disorder (CAPD) (N = 22, age range 7.5-17 years); and first episode psychosis patients (FEP) (N = 17, age range 18-48 years). RESULTS It was not possible to calculate a threshold for the RGDT for 13 of 22 children with CAPD and for 7 of 17 adults with FEP due to response inconsistency. Analysis of variance (ANOVA) excluding cases that produced inconsistent RGDT results showed that only RGDT thresholds differed across groups (F = 8.73, p = 0.001). Three t-tests comparing test means within group revealed statistically significant differences between the gap detection thresholds obtained with the RGDT vs. the GIN for each group. No significant correlations were seen between RGDT and GIN. CONCLUSION Lower/better gap detection thresholds and smaller standard deviations were obtained using the GIN in all three groups. Lack of correlation between the two tests suggests that they may measure different processes.
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50
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Affiliation(s)
- Deborah A Hall
- National Institute of Health Research (NIHR) Nottingham Hearing Biomedical Research Unit, University of Nottingham, Nottingham NG7 2RD, UK.
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