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Arheix-Parras S, Franco J, Siklafidou IP, Villain M, Rogue C, Python G, Glize B. Neuromodulation of the Right Motor Cortex of the Lips With Repetitive Transcranial Magnetic Stimulation to Reduce Phonological Impairment and Improve Naming in Three Persons With Aphasia: A Single-Case Experimental Design. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2024:1-18. [PMID: 38875479 DOI: 10.1044/2024_ajslp-23-00215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2024]
Abstract
PURPOSE Repetitive transcranial magnetic stimulation (rTMS) can enhance aphasia recovery. Most studies have used inhibitory stimulation targeting the right inferior frontal gyrus. However, the motor cortex, observed to contribute to the prediction of aphasia recovery, is involved in word production and could be an appropriate target for rTMS. We aimed to observe behavioral changes in a picture naming task induced by inhibitory rTMS targeting the right motor cortex of the lips in people with poststroke aphasia. METHOD Using a single-case experimental design, we included three participants with chronic poststroke aphasia who had phonological deficits. Each participant performed a verbal picture naming task 3 times a week for 2, 3, or 4 weeks (pseudorandom across participants) to establish a baseline naming ability for each participant. These were not therapy sessions, and no feedback was provided. Then, each participant received the intervention, inhibitory continuous theta burst stimulation targeting the right motor cortex of the lips, 3 times a week for 2 weeks. Naming testing continued 3 times a week, for these latter 2 weeks. No therapy was performed at any time during the study. RESULTS Visual analysis of the graphs showed a positive effect of rTMS for P2 and P3 on picture naming accuracy and a tendency toward improvement for P1. Statistical analysis showed an improvement after rTMS for P1 (τ = 0.544, p = .013, SETau = 0.288) and P2 (τ = 0.708, p = .001, SETau = 0.235). For P3, even if the intervention allowed some improvement, this was statistically nonsignificant due to a learning effect during the baseline naming testing, which lasted the longest, 4 weeks. Regarding specific language features, phonological errors significantly decreased in all patients. CONCLUSIONS The motor cortex of the lips could be an appropriate target for rTMS to improve naming in people with poststroke aphasia suffering from a phonological deficit. This suggests the possibility to individualize the target for rTMS, according to the patient's linguistic impairment.
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Affiliation(s)
- Sophie Arheix-Parras
- ACTIVE Team, Bordeaux Population Health, University of Bordeaux, France
- Institut Universitaire des Sciences de la Réadaptation, University of Bordeaux, France
| | - Julie Franco
- Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland
| | | | - Marie Villain
- Department of Physical and Rehabilitation Medicine, AP-HP La Pitié Salpêtrière - Charles Foix University Hospital, France
- AP-HP, Handicap Moteur et Cognitif & Réadaptation, Sorbonne Université, Paris, France
- ICM, INSERM UMRS 1127, CNRS, UMR 7225, Brain and Spine Institute, Paris, France
| | - Caroline Rogue
- Department of Physical Medicine and Rehabilitation, Centre Hospitalier Universitaire de Bordeaux, France
| | - Grégoire Python
- Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland
- Department of Clinical Neurosciences, Lausanne University Hospital, Switzerland
| | - Bertrand Glize
- ACTIVE Team, Bordeaux Population Health, University of Bordeaux, France
- Institut Universitaire des Sciences de la Réadaptation, University of Bordeaux, France
- Department of Physical Medicine and Rehabilitation, Centre Hospitalier Universitaire de Bordeaux, France
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Arheix-Parras S, Glize B, Guehl D, Python G. Electrophysiological Changes in Patients with Post-stroke Aphasia: A Systematic Review. Brain Topogr 2023; 36:135-171. [PMID: 36749552 DOI: 10.1007/s10548-023-00941-4] [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: 07/16/2022] [Accepted: 01/19/2023] [Indexed: 02/08/2023]
Abstract
Background Magnetoencephalography (MEG) and electroencephalography (EEG) record two main types of data: continuous measurements at rest or during sleep, and event-related potentials/evoked magnetic fields (ERPs/EMFs) that involve specific and repetitive tasks. In this systematic review, we summarized longitudinal studies on recovery from post-stroke aphasia that used continuous or event-related temporal imaging (EEG or MEG). Methods We searched PubMed and Scopus for English articles published from 1950 to May 31, 2022. Results 34 studies were included in this review: 11 were non-interventional studies and 23 were clinical trials that used specific rehabilitation methods, neuromodulation, or drugs. The results of the non-interventional studies suggested that poor language recovery was associated with slow-wave activity persisting over time. The results of some clinical trials indicated that behavioral improvements were correlated with significant modulation of the N400 component. Discussion Compared with continuous EEG, ERP/EMF may more reliably identify biomarkers of therapy-induced effects. Electrophysiology should be used more often to explore language processes that are impaired after a stroke, as it may highlight treatment challenges for patients with post-stroke aphasia.
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Affiliation(s)
- Sophie Arheix-Parras
- ACTIVE team, Bordeaux Population Health, INSERM UMR 1219, university of Bordeaux, 33000, Bordeaux, France. .,Institut Universitaire des Sciences de la Réadaptation, University of Bordeaux, 33000, Bordeaux, France. .,Department of physical medicine and rehabilitation, CHU de Bordeaux, 33000, Bordeaux, France.
| | - Bertrand Glize
- ACTIVE team, Bordeaux Population Health, INSERM UMR 1219, university of Bordeaux, 33000, Bordeaux, France.,Institut Universitaire des Sciences de la Réadaptation, University of Bordeaux, 33000, Bordeaux, France.,Department of physical medicine and rehabilitation, CHU de Bordeaux, 33000, Bordeaux, France
| | - Dominique Guehl
- Pole des neurosciences cliniques, CHU de Bordeaux, 33000, Bordeaux, France.,IMN CNRS UMR 5293, CNRS, University of Bordeaux, 33000, Bordeaux, France
| | - Grégoire Python
- Faculty of Psychology and Educational Sciences, University of Geneva, Geneva, Switzerland.,Department of Clinical Neurosciences, Lausanne University Hospital (CHUV), Lausanne, Switzerland
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Wolthuis N, Bosma I, Bastiaanse R, Cherian PJ, Smits M, Veenstra W, Wagemakers M, Vincent A, Satoer D. Distinct Slow-Wave Activity Patterns in Resting-State Electroencephalography and Their Relation to Language Functioning in Low-Grade Glioma and Meningioma Patients. Front Hum Neurosci 2022; 16:748128. [PMID: 35399357 PMCID: PMC8986989 DOI: 10.3389/fnhum.2022.748128] [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: 07/28/2021] [Accepted: 02/16/2022] [Indexed: 12/03/2022] Open
Abstract
Introduction Brain tumours frequently cause language impairments and are also likely to co-occur with localised abnormal slow-wave brain activity. However, it is unclear whether this applies specifically to low-grade brain tumours. We investigate slow-wave activity in resting-state electroencephalography (EEG) in low-grade glioma and meningioma patients, and its relation to pre- and postoperative language functioning. Method Patients with a glioma (N = 15) infiltrating the language-dominant hemisphere and patients with a meningioma (N = 10) with mass effect on this hemisphere underwent extensive language testing before and 1 year after surgery. EEG was registered preoperatively, postoperatively (glioma patients only), and once in healthy individuals. Slow-wave activity in delta- and theta- frequency bands was evaluated visually and quantitatively by spectral power at three levels over the scalp: the whole brain, the affected hemisphere, and the affected region. Results Glioma patients had increased delta activity (affected area) and increased theta activity (all levels) before and after surgery. In these patients, increased preoperative theta activity was related to the presence of language impairment, especially to poor word retrieval and grammatical performance. Preoperative slow-wave activity was also related to postoperative language outcomes. Meningioma patients showed no significant increase in EEG slow-wave activity compared to healthy individuals, but they presented with word retrieval, grammatical, and writing problems preoperatively, as well as with writing impairments postoperatively. Discussion Although the brain-tumour pathology in low-grade gliomas and meningiomas has a different effect on resting-state brain activity, patients with low-grade gliomas and meningiomas both suffer from language impairments. Increased theta activity in glioma patients can be considered as a language-impairment marker, with prognostic value for language outcome after surgery.
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Affiliation(s)
- Nienke Wolthuis
- Center for Language and Cognition Groningen (CLCG), University of Groningen, Groningen, Netherlands
| | - Ingeborg Bosma
- Department of Neurology, University Medical Center Groningen, Groningen, Netherlands
| | - Roelien Bastiaanse
- Center for Language and Cognition Groningen (CLCG), University of Groningen, Groningen, Netherlands
- National Research University Higher School of Economics, Moscow, Russia
| | - Perumpillichira J. Cherian
- Department of Neurology, University Medical Center Rotterdam, Rotterdam, Netherlands
- Division of Neurology, Department of Medicine, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada
| | - Marion Smits
- Department of Radiology & Nuclear Medicine, Erasmus MC - University Medical Center Rotterdam, Rotterdam, Netherlands
- Brain Tumour Centre, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Wencke Veenstra
- Department of Rehabilitation Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Michiel Wagemakers
- Department of Neurosurgery, University Medical Center Groningen, Groningen, Netherlands
| | - Arnaud Vincent
- Department of Neurosurgery, Erasmus MC – University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Djaina Satoer
- Department of Neurosurgery, Erasmus MC – University Medical Center Rotterdam, Rotterdam, Netherlands
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von Grebmer Zu Wolfsthurn S, Pablos L, Schiller NO. Noun-phrase production as a window to language selection: An ERP study. Neuropsychologia 2021; 162:108055. [PMID: 34626618 DOI: 10.1016/j.neuropsychologia.2021.108055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 09/09/2021] [Accepted: 10/05/2021] [Indexed: 12/01/2022]
Abstract
Characterising the time course of non-native language production is critical in understanding the mechanisms behind successful communication. Yet, little is known about the modulating role of cross-linguistic influence (CLI) on the temporal unfolding of non-native production and the locus of target language selection. In this study, we explored CLI effects on non-native noun phrase production with behavioural and neural methods. We were particularly interested in the modulation of the P300 as an index for inhibitory control, and the N400 as an index for co-activation and CLI. German late learners of Spanish overtly named pictures while their EEG was monitored. Our results indicate traceable CLI effects at the behavioural and neural level in both early and late production stages. This suggests that speakers faced competition between the target and non-target language until advanced production stages. Our findings add important behavioural and neural evidence to the underpinnings of non-native production processes, in particular for late learners.
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Affiliation(s)
- Sarah von Grebmer Zu Wolfsthurn
- Leiden University Centre for Linguistics (LUCL), Reuvensplaats 3-4, 2311, BE Leiden, the Netherlands; Leiden Institute for Brain and Cognition (LIBC), LUMC, PO Box 9600, 2300, RC Leiden, the Netherlands.
| | - Leticia Pablos
- Leiden University Centre for Linguistics (LUCL), Reuvensplaats 3-4, 2311, BE Leiden, the Netherlands; Leiden Institute for Brain and Cognition (LIBC), LUMC, PO Box 9600, 2300, RC Leiden, the Netherlands
| | - Niels O Schiller
- Leiden University Centre for Linguistics (LUCL), Reuvensplaats 3-4, 2311, BE Leiden, the Netherlands; Leiden Institute for Brain and Cognition (LIBC), LUMC, PO Box 9600, 2300, RC Leiden, the Netherlands
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5
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Gallo F, Bermudez-Margaretto B, Shtyrov Y, Abutalebi J, Kreiner H, Chitaya T, Petrova A, Myachykov A. First Language Attrition: What It Is, What It Isn't, and What It Can Be. Front Hum Neurosci 2021; 15:686388. [PMID: 34557079 PMCID: PMC8452950 DOI: 10.3389/fnhum.2021.686388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 08/16/2021] [Indexed: 11/30/2022] Open
Abstract
This review aims at clarifying the concept of first language attrition by tracing its limits, identifying its phenomenological and contextual constraints, discussing controversies associated with its definition, and suggesting potential directions for future research. We start by reviewing different definitions of attrition as well as associated inconsistencies. We then discuss the underlying mechanisms of first language attrition and review available evidence supporting different background hypotheses. Finally, we attempt to provide the groundwork to build a unified theoretical framework allowing for generalizable results. To this end, we suggest the deployment of a rigorous neuroscientific approach, in search of neural markers of first language attrition in different linguistic domains, putting forward hypothetical experimental ways to identify attrition's neural traces and formulating predictions for each of the proposed experimental paradigms.
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Affiliation(s)
- Federico Gallo
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
- Centre for Neurolinguistics and Psycholinguistics (CNPL), Vita-Salute San Raffaele University, Milan, Italy
| | - Beatriz Bermudez-Margaretto
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
| | - Yury Shtyrov
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
- Center of Functionally Integrative Neuroscience (CFIN), Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Jubin Abutalebi
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
- Centre for Neurolinguistics and Psycholinguistics (CNPL), Vita-Salute San Raffaele University, Milan, Italy
| | - Hamutal Kreiner
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
- Department of Behavioral Sciences, Linguistic Cognition Laboratory, Ruppin Academic Center, Emek Hefer, Israel
| | - Tamara Chitaya
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
| | - Anna Petrova
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
| | - Andriy Myachykov
- Centre for Cognition and Decision Making, Institute for Cognitive Neuroscience, HSE University, Russian Federation, Moscow, Russia
- Department of Psychology, Northumbria University, Newcastle upon Tyne, United Kingdom
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6
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Silkes JP, Anjum J. The role and use of event-related potentials in aphasia: A scoping review. BRAIN AND LANGUAGE 2021; 219:104966. [PMID: 34044294 DOI: 10.1016/j.bandl.2021.104966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 06/12/2023]
Abstract
Event-related potentials (ERPs) can provide important insights into underlying language processes in both unimpaired and neurologically impaired populations and may be particularly useful in aphasia. This scoping review was conducted to provide a comprehensive summary of how ERPs have been used with people with aphasia (PWA), with the goal of exploring the potential clinical application of ERPs in aphasia assessment and treatment. We identified 117 studies that met inclusionary criteria, reflecting six thematic domains of inquiry that relate to understanding both unimpaired and aphasic language processing and the use of ERPs with PWA. In these studies, a wide variety of ERP components were reported. Inconsistencies in reporting of participant characteristics and study protocols limit our ability to generalize beyond the individual studies and understand implications for clinical applicability. We discuss the potential roles of ERPs in aphasia management and make recommendations for further developing ERPs for clinical utility in PWA.
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Affiliation(s)
- JoAnn P Silkes
- School of Speech, Language, and Hearing Sciences, San Diego State University, 5500 Campanile Rd, SLHS-1518, San Diego, CA 92182-1518, USA.
| | - Javad Anjum
- Speech-Language Pathology, Saint Gianna School of Health Sciences, University of Mary, 7500 University Dr. Bismarck, ND 58504, USA.
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7
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Wang C, Zhang Q. Word frequency effect in written production: Evidence from ERPs and neural oscillations. Psychophysiology 2021; 58:e13775. [PMID: 33522614 DOI: 10.1111/psyp.13775] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 12/29/2020] [Accepted: 01/05/2021] [Indexed: 01/02/2023]
Abstract
It has been widely documented that word frequency (WF) modulates language processing in various input and output modalities. WF effect has also been reported in the domain of written production; however, how WF affects written production is a controversial issue. The present study attempts to investigate the time course of and neural oscillation underlying the WF effect in handwritten production. Participants were asked to handwrite pictures names of high versus low WF, while concurrently recording EEG. EEG trials were extracted time-locked to picture onsets and then submitted to event-related potential analysis and time-frequency analysis. WF affected ERPs in the time windows of around 98-160 and 282-360 ms after picture onsets. More importantly, WF modulated the evoked and induced theta-band (4-8 Hz) neural oscillations in the time window of around 36-240 and 244-472 ms, respectively. Considering the time course of language production and the role of theta-band oscillation in long-term memory retrieval, we suggest that the two stages of the WF effect, respectively, reflect conceptual preparation and retrieval of orthographic word-forms in written production.
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Affiliation(s)
- Cheng Wang
- Department of Psychology, Zhejiang Normal University, Jinhua, China
| | - Qingfang Zhang
- Department of Psychology, Renmin University of China, Beijing, China
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8
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The effect of time pressure and semantic relatedness in spoken word production: A topographic ERP study. Behav Brain Res 2020; 387:112587. [DOI: 10.1016/j.bbr.2020.112587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 02/11/2020] [Accepted: 03/02/2020] [Indexed: 11/22/2022]
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9
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Python G, Fargier R, Laganaro M. When Wine and Apple Both Help the Production of Grapes: ERP Evidence for Post-lexical Semantic Facilitation in Picture Naming. Front Hum Neurosci 2018; 12:136. [PMID: 29692716 PMCID: PMC5902702 DOI: 10.3389/fnhum.2018.00136] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/26/2018] [Indexed: 11/13/2022] Open
Abstract
Background: Producing a word in referential naming requires to select the right word in our mental lexicon among co-activated semantically related words. The mechanisms underlying semantic context effects during speech planning are still controversial, particularly for semantic facilitation which investigation remains under-represented in contrast to the plethora of studies dealing with interference. Our aim is to study the time-course of semantic facilitation in picture naming, using a picture-word "interference" paradigm and event-related potentials (ERPs). Methods: We compared two different types of semantic relationships, associative and categorical, in a single word priming and a double word priming paradigm. The primes were presented visually with a long negative Stimulus Onset Asynchrony (SOA), which is expected to cause facilitation. Results: Shorter naming latencies were observed after both associative and categorical primes, as compared to unrelated primes, and even shorter latencies after two primes. Electrophysiological results showed relatively late modulations of waveform amplitudes for both types of primes (beginning ~330 ms post picture onset with a single prime and ~275 ms post picture onset with two primes), corresponding to a shift in latency of similar topographic maps across conditions. Conclusion: The present results are in favor of a post-lexical locus of semantic facilitation for associative and categorical priming in picture naming and confirm that semantic facilitation is as relevant as semantic interference to inform on word production. The post-lexical locus argued here might be related to self-monitoting or/and to modulations at the level of word-form planning, without excluding the participation of strategic processes.
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Affiliation(s)
- Grégoire Python
- Faculty of Psychology and Educational Science, University of Geneva, Geneva, Switzerland
| | - Raphaël Fargier
- Faculty of Psychology and Educational Science, University of Geneva, Geneva, Switzerland
| | - Marina Laganaro
- Faculty of Psychology and Educational Science, University of Geneva, Geneva, Switzerland
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10
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Roelofs A. A unified computational account of cumulative semantic, semantic blocking, and semantic distractor effects in picture naming. Cognition 2018; 172:59-72. [DOI: 10.1016/j.cognition.2017.12.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 11/29/2017] [Accepted: 12/04/2017] [Indexed: 12/31/2022]
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Singh T, Phillip L, Behroozmand R, Gleichgerrcht E, Piai V, Fridriksson J, Bonilha L. Pre-articulatory electrical activity associated with correct naming in individuals with aphasia. BRAIN AND LANGUAGE 2018; 177-178:1-6. [PMID: 29421267 PMCID: PMC5835213 DOI: 10.1016/j.bandl.2018.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 12/13/2017] [Accepted: 01/15/2018] [Indexed: 05/17/2023]
Abstract
Picture naming is a language task that involves multiple neural networks and is used to probe aphasia-induced language deficits. The pattern of neural activation seen in healthy individuals during picture naming is disrupted in individuals with aphasia, but the time-course of the disruption remains unclear. Specifically, it remains unclear which anatomical and temporal aspects of neural processing are necessary for correct naming. Here, we tested two individuals with stroke induced aphasia, and compared the differences in the event-related potentials (ERPs) and current sources when they made correct vs. erroneous responses during picture naming. The pre-articulatory ERP activity was significantly different between the two responses. Current source analysis revealed that the ability to recruit left temporal and frontal areas within a 300-550 ms time window after stimulus onset contributed to correct responses. These results suggest that targeted neuromodulation in these areas could lead to better treatment outcomes in patients with aphasia.
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Affiliation(s)
- Tarkeshwar Singh
- Department of Health Sciences and Research, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Lorelei Phillip
- Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, United States
| | - Roozbeh Behroozmand
- Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, United States
| | - Ezequiel Gleichgerrcht
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Vitória Piai
- Donders Centre for Cognition, Radboud University, Nijmegen, Netherlands
| | - Julius Fridriksson
- Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, United States
| | - Leonardo Bonilha
- Department of Neurology, Medical University of South Carolina, Charleston, SC 29425, United States.
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Hinojosa JA, Fernández-Folgueiras U, Albert J, Santaniello G, Pozo MA, Capilla A. Negative induced mood influences word production: An event-related potentials study with a covert picture naming task. Neuropsychologia 2016; 95:227-239. [PMID: 28025016 DOI: 10.1016/j.neuropsychologia.2016.12.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 10/20/2022]
Abstract
The present event-related potentials (ERPs) study investigated the effects of mood on phonological encoding processes involved in word generation. For this purpose, negative, positive and neutral affective states were induced in participants during three different recording sessions using short film clips. After the mood induction procedure, participants performed a covert picture naming task in which they searched letters. The negative compared to the neutral mood condition elicited more negative amplitudes in a component peaking around 290ms. Furthermore, results from source localization analyses suggested that this activity was potentially generated in the left prefrontal cortex. In contrast, no differences were found in the comparison between positive and neutral moods. Overall, current data suggest that processes involved in the retrieval of phonological information during speech generation are impaired when participants are in a negative mood. The mechanisms underlying these effects were discussed in relation to linguistic and attentional processes, as well as in terms of the use of heuristics.
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Affiliation(s)
- J A Hinojosa
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Spain; Facultad de Psicología, Universidad Complutense de Madrid, Spain.
| | | | - J Albert
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Spain; Facultad de Psicología, Universidad Autónoma de Madrid, Spain
| | - G Santaniello
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Spain
| | - M A Pozo
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Spain
| | - A Capilla
- Facultad de Psicología, Universidad Autónoma de Madrid, Spain
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Porcaro C, Medaglia MT, Krott A. Removing speech artifacts from electroencephalographic recordings during overt picture naming. Neuroimage 2015; 105:171-80. [PMID: 25450111 DOI: 10.1016/j.neuroimage.2014.10.049] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 08/11/2014] [Accepted: 10/17/2014] [Indexed: 11/18/2022] Open
Affiliation(s)
- Camillo Porcaro
- LET'S-ISTC-CNR, Ospedale Fatebenefratelli, Isola Tiberina, Rome, Italy; Institute of Neuroscience, Newcastle University, UK; Neural Control of Movement Lab, Department of Health Sciences and Technology ETH Zurich, Switzerland.
| | - Maria Teresa Medaglia
- LET'S-ISTC-CNR, Ospedale Fatebenefratelli, Isola Tiberina, Rome, Italy; School of Psychology and BUIC, University of Birmingham, UK
| | - Andrea Krott
- School of Psychology and BUIC, University of Birmingham, UK
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Real-time processing in picture naming in adults who stutter: ERP evidence. Clin Neurophysiol 2014; 126:284-96. [PMID: 24910149 DOI: 10.1016/j.clinph.2014.05.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 04/06/2014] [Accepted: 05/09/2014] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim was to compare real-time language/cognitive processing in picture naming in adults who stutter (AWS) versus typically-fluent adults (TFA). METHODS Participants named pictures preceded by masked prime words. Primes and target picture labels were identical or mismatched. Priming effects on naming and picture-elicited ERP activity were analyzed. Vocabulary knowledge correlations with these measures were assessed. RESULTS Priming improved naming RTs and accuracy in both groups. RTs were longer for AWS, and correlated positively with receptive vocabulary in TFA. Electrophysiologically, posterior-P1 amplitude negatively correlated with expressive vocabulary in TFA versus receptive vocabulary in AWS. Frontal/temporal-P1 amplitude correlated positively with expressive vocabulary in AWS. Identity priming enhanced frontal/posterior-N2 amplitude in both groups, and attenuated P280 amplitude in AWS. N400 priming was topographically-restricted in AWS. CONCLUSIONS Results suggest that conceptual knowledge was perceptually-grounded in expressive vocabulary in TFA versus receptive vocabulary in AWS. Poorer expressive vocabulary in AWS was potentially associated with greater suppression of irrelevant conceptual information. Priming enhanced N2-indexed cognitive control and visual attention in both groups. P280-indexed focal attention attenuated with priming in AWS only. Topographically-restricted N400 priming suggests that lemma/word form connections were weaker in AWS. SIGNIFICANCE Real-time language/cognitive processing in picture naming operates differently in AWS.
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Piai V, Roelofs A, Maris E. Oscillatory brain responses in spoken word production reflect lexical frequency and sentential constraint. Neuropsychologia 2013; 53:146-56. [PMID: 24291513 DOI: 10.1016/j.neuropsychologia.2013.11.014] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Revised: 10/14/2013] [Accepted: 11/20/2013] [Indexed: 11/29/2022]
Abstract
Two fundamental factors affecting the speed of spoken word production are lexical frequency and sentential constraint, but little is known about their timing and electrophysiological basis. In the present study, we investigated event-related potentials (ERPs) and oscillatory brain responses induced by these factors, using a task in which participants named pictures after reading sentences. Sentence contexts were either constraining or nonconstraining towards the final word, which was presented as a picture. Picture names varied in their frequency of occurrence in the language. Naming latencies and electrophysiological responses were examined as a function of context and lexical frequency. Lexical frequency is an index of our cumulative learning experience with words, so lexical-frequency effects most likely reflect access to memory representations for words. Pictures were named faster with constraining than nonconstraining contexts. Associated with this effect, starting around 400 ms pre-picture presentation, oscillatory power between 8 and 30 Hz was lower for constraining relative to nonconstraining contexts. Furthermore, pictures were named faster with high-frequency than low-frequency names, but only for nonconstraining contexts, suggesting differential ease of memory access as a function of sentential context. Associated with the lexical-frequency effect, starting around 500 ms pre-picture presentation, oscillatory power between 4 and 10 Hz was higher for high-frequency than for low-frequency names, but only for constraining contexts. Our results characterise electrophysiological responses associated with lexical frequency and sentential constraint in spoken word production, and point to new avenues for studying these fundamental factors in language production.
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Affiliation(s)
- Vitória Piai
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Montessorilaan 3, 6525 HR Nijmegen, the Netherlands; International Max Planck Research School for Language Sciences, Wundtlaan 1, 6525 XD Nijmegen, the Netherlands.
| | - Ardi Roelofs
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Montessorilaan 3, 6525 HR Nijmegen, the Netherlands.
| | - Eric Maris
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Montessorilaan 3, 6525 HR Nijmegen, the Netherlands.
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16
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Mack JE, Cho-Reyes S, Kloet JD, Weintraub S, Mesulam MM, Thompson CK. Phonological facilitation of object naming in agrammatic and logopenic primary progressive aphasia (PPA). Cogn Neuropsychol 2013; 30:172-93. [PMID: 24070176 DOI: 10.1080/02643294.2013.835717] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Phonological processing deficits are characteristic of both the agrammatic and logopenic subtypes of primary progressive aphasia (PPA-G and PPA-L). However, it is an open question which substages of phonological processing (i.e., phonological word form retrieval, phonological encoding) are impaired in these subtypes of PPA, as well as how phonological processing deficits contribute to anomia. In the present study, participants with PPA-G (n = 7), participants with PPA-L (n = 7), and unimpaired controls (n = 17) named objects as interfering written words (phonologically related/unrelated) were presented at different stimulus onset asynchronies (SOAs) of 0, +100, +300, and +500 ms. Phonological facilitation (PF) effects (faster naming times with phonologically related interfering words) were found for the controls and PPA-L group only at SOA = 0 and +100 ms. However, the PPA-G group exhibited protracted PF effects (PF at SOA = 0, +100, and +300 ms). These results may reflect deficits in phonological encoding in PPA-G, but not in PPA-L, supporting the neuropsychological reality of this substage of phonological processing and the distinction between these two PPA subtypes.
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Affiliation(s)
- Jennifer E Mack
- a Department of Communication Sciences and Disorders , Northwestern University , Evanston , IL , USA
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17
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Riès S, Janssen N, Burle B, Alario FX. Response-locked brain dynamics of word production. PLoS One 2013; 8:e58197. [PMID: 23554876 PMCID: PMC3595260 DOI: 10.1371/journal.pone.0058197] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 02/04/2013] [Indexed: 11/18/2022] Open
Abstract
The cortical regions involved in the different stages of speech production are relatively well-established, but their spatio-temporal dynamics remain poorly understood. In particular, the available studies have characterized neural events with respect to the onset of the stimulus triggering a verbal response. The core aspect of language production, however, is not perception but action. In this context, the most relevant question may not be how long after a stimulus brain events happen, but rather how long before the production act do they occur. We investigated speech production-related brain activity time-locked to vocal onset, in addition to the common stimulus-locked approach. We report the detailed temporal interplay between medial and left frontal activities occurring shortly before vocal onset. We interpret those as reflections of, respectively, word selection and word production processes. This medial-lateral organization is in line with that described in non-linguistic action control, suggesting that similar processes are at play in word production and non-linguistic action production. This novel view of the brain dynamics underlying word production provides a useful background for future investigations of the spatio-temporal brain dynamics that lead to the production of verbal responses.
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Abstract
Do speakers of all languages use segmental speech sounds when they produce words? Existing models of language production generally assume a mental representation of individual segmental units, or phonemes, but the bulk of evidence comes from speakers of European languages in which the orthographic system codes explicitly for speech sounds. By contrast, in languages with nonalphabetical scripts, such as Mandarin Chinese, individual speech sounds are not orthographically represented, raising the possibility that speakers of these languages do not use phonemes as fundamental processing units. We used event-related potentials (ERPs) combined with behavioral measurement to investigate the role of phonemes in Mandarin production. Mandarin native speakers named colored line drawings of objects using color adjective-noun phrases; color and object name either shared the initial phoneme or were phonologically unrelated. Whereas naming latencies were unaffected by phoneme repetition, ERP responses were modulated from 200 ms after picture onset. Our ERP findings thus provide strong support for the claim that phonemic segments constitute fundamental units of phonological encoding even for speakers of languages that do not encode such units orthographically.
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Blackford T, Holcomb PJ, Grainger J, Kuperberg GR. A funny thing happened on the way to articulation: N400 attenuation despite behavioral interference in picture naming. Cognition 2012; 123:84-99. [PMID: 22245030 DOI: 10.1016/j.cognition.2011.12.007] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2011] [Revised: 11/28/2011] [Accepted: 12/12/2011] [Indexed: 10/14/2022]
Abstract
We measured Event-Related Potentials (ERPs) and naming times to picture targets preceded by masked words (stimulus onset asynchrony: 80 ms) that shared one of three different types of relationship with the names of the pictures: (1) Identity related, in which the prime was the name of the picture ("socks" - <picture of socks>), (2) Phonemic Onset related, in which the initial segment of the prime was the same as the name of the picture ("log" - <picture of a leaf>), and (3) Semantically related in which the prime was a co-category exemplar and associated with the name of the picture ("cake" - <picture of a pie>). Each type of related picture target was contrasted with an Unrelated picture target, resulting in a 3×2 design that crossed Relationship Type between the word and the target picture (Identity, Phonemic Onset and Semantic) with Relatedness (Related and Unrelated). Modulation of the N400 component to related (versus unrelated) pictures was taken to reflect semantic processing at the interface between the picture's conceptual features and its lemma, while naming times reflected the end product of all stages of processing. Both attenuation of the N400 and shorter naming times were observed to pictures preceded by Identity related (versus Unrelated) words. No ERP effects within 600 ms, but shorter naming times, were observed to pictures preceded by Phonemic Onset related (versus Unrelated) words. An attenuated N400 (electrophysiological semantic priming) but longer naming times (behavioral semantic interference) were observed to pictures preceded by Semantically related (versus Unrelated) words. These dissociations between ERP modulation and naming times suggest that (a) phonemic onset priming occurred late, during encoding of the articulatory response, and (b) semantic behavioral interference was not driven by competition at the lemma level of representation, but rather occurred at a later stage of production.
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Affiliation(s)
- Trevor Blackford
- Department of Psychology, Tufts University, 490 Boston Avenue, Medford, Massachusetts 02155, United States
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20
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Zipse L, Kearns K, Nicholas M, Marantz A. A MEG investigation of single-word auditory comprehension in aphasia. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2011; 54:1577-1596. [PMID: 21862679 DOI: 10.1044/1092-4388(2011/10-0067)] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE To explore whether individuals with aphasia exhibit differences in the M350, an electrophysiological marker of lexical activation, compared with healthy controls. METHOD Seven people with aphasia, 9 age-matched controls, and 10 younger controls completed an auditory lexical decision task while cortical activity was recorded with magnetoencephalography. There were 2 stimulus conditions of interest: identity primed (i.e., a word preceded by itself) and semantic primed (i.e., a word preceded by a semantically related word). Latency and amplitude of the M350 response as well as reaction time were measured. RESULTS Consistent with the age-matched control group, the group with aphasia showed both identity and semantic priming behaviorally. In contrast to the control groups, the group with aphasia did not show either semantic or identity priming of the M350 response. This group also demonstrated longer M350 latencies than either control group. Furthermore, within this group, M350 latency was positively correlated with a measure of semantic impairment. CONCLUSIONS These findings highlight the usefulness of temporally sensitive measures when studying aphasia and demonstrate that the latency of electrophysiological markers is of interest in this population. In particular, increased M350 latency appears to be indicative of a semantic processing impairment.
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Affiliation(s)
- Lauryn Zipse
- Massachusetts General Hospital Institute of Health, USA.
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21
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Indefrey P. The spatial and temporal signatures of word production components: a critical update. Front Psychol 2011; 2:255. [PMID: 22016740 PMCID: PMC3191502 DOI: 10.3389/fpsyg.2011.00255] [Citation(s) in RCA: 390] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 09/13/2011] [Indexed: 11/24/2022] Open
Abstract
In the first decade of neurocognitive word production research the predominant approach was brain mapping, i.e., investigating the regional cerebral brain activation patterns correlated with word production tasks, such as picture naming and word generation. Indefrey and Levelt (2004) conducted a comprehensive meta-analysis of word production studies that used this approach and combined the resulting spatial information on neural correlates of component processes of word production with information on the time course of word production provided by behavioral and electromagnetic studies. In recent years, neurocognitive word production research has seen a major change toward a hypothesis-testing approach. This approach is characterized by the design of experimental variables modulating single component processes of word production and testing for predicted effects on spatial or temporal neurocognitive signatures of these components. This change was accompanied by the development of a broader spectrum of measurement and analysis techniques. The article reviews the findings of recent studies using the new approach. The time course assumptions of Indefrey and Levelt (2004) have largely been confirmed requiring only minor adaptations. Adaptations of the brain structure/function relationships proposed by Indefrey and Levelt (2004) include the precise role of subregions of the left inferior frontal gyrus as well as a probable, yet to date unclear role of the inferior parietal cortex in word production.
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Affiliation(s)
- Peter Indefrey
- Institut für Sprache und Information, Heinrich Heine Universität DüsseldorfDüsseldorf, Germany
- Donders Institute, Centre for Cognitive Neuroimaging, Radboud University NijmegenNijmegen, Netherlands
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22
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McIntosh RD, Brooks JL. Current tests and trends in single-case neuropsychology. Cortex 2011; 47:1151-9. [PMID: 21930266 DOI: 10.1016/j.cortex.2011.08.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 07/29/2011] [Accepted: 08/08/2011] [Indexed: 01/27/2023]
Abstract
In this issue of Cortex, Crawford, Garthwaite and Ryan publish bayesian statistical tests that will enable researchers to take account of covariates when comparing single patients to control samples. In this article, we provide some context for this development, from an audit of the Cortex archives. We suggest that single-case research is alive and well, and more rigorous than ever, and that current practice has been shaped considerably by Crawford and colleagues' statistical refinements over the past 12 years. However, there is scope for further tightening and standardisation of statistical methods and reporting standards. The advantages offered by the new bayesian tests should promote the even wider use of appropriate statistical methods, with benefits for the validity of individual studies, and for cross-comparability in the single-case literature.
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Affiliation(s)
- Robert D McIntosh
- Human Cognitive Neuroscience, Psychology, University of Edinburgh, UK.
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23
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Ganushchak LY, Christoffels IK, Schiller NO. The use of electroencephalography in language production research: a review. Front Psychol 2011; 2:208. [PMID: 21909333 PMCID: PMC3164111 DOI: 10.3389/fpsyg.2011.00208] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 08/13/2011] [Indexed: 12/01/2022] Open
Abstract
Speech production long avoided electrophysiological experiments due to the suspicion that potential artifacts caused by muscle activity of overt speech may lead to a bad signal-to-noise ratio in the measurements. Therefore, researchers have sought to assess speech production by using indirect speech production tasks, such as tacit or implicit naming, delayed naming, or meta-linguistic tasks, such as phoneme-monitoring. Covert speech may, however, involve different processes than overt speech production. Recently, overt speech has been investigated using electroencephalography (EEG). As the number of papers published is rising steadily, this clearly indicates the increasing interest and demand for overt speech research within the field of cognitive neuroscience of language. Our main goal here is to review all currently available results of overt speech production involving EEG measurements, such as picture naming, Stroop naming, and reading aloud. We conclude that overt speech production can be successfully studied using electrophysiological measures, for instance, event-related brain potentials (ERPs). We will discuss possible relevant components in the ERP waveform of speech production and aim to address the issue of how to interpret the results of ERP research using overt speech, and whether the ERP components in language production are comparable to results from other fields.
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Affiliation(s)
- Lesya Y Ganushchak
- Psychology, Leiden Institute for Brain and Cognition Leiden, Netherlands
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24
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25
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Foley JA, Della Sala S. Do shorter Cortex papers have greater impact? Cortex 2011; 47:635-42. [PMID: 21463860 DOI: 10.1016/j.cortex.2011.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Accepted: 03/18/2011] [Indexed: 01/02/2023]
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26
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27
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Foley JA, Della Sala S. Geographical distribution of Cortex publications. Cortex 2010; 46:410-9. [DOI: 10.1016/j.cortex.2009.11.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2009] [Accepted: 11/23/2009] [Indexed: 01/05/2023]
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28
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Hinojosa JA, Méndez-Bértolo C, Carretié L, Pozo MA. Emotion modulates language production during covert picture naming. Neuropsychologia 2010; 48:1725-34. [PMID: 20188114 DOI: 10.1016/j.neuropsychologia.2010.02.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 01/19/2010] [Accepted: 02/17/2010] [Indexed: 11/28/2022]
Abstract
Previous studies have shown that emotional content modulates the activity of several components of the event-related potentials during word comprehension. However, little is known about the impact of affective information on the different processing stages involved in word production. In the present study we aimed to investigate the influence of positive and negative emotions in phonological encoding, a process that have been shown to take place between 300 and 450 ms in previous studies. Participants performed letter searching in a picture naming task. It was found that grapheme monitoring in positive and negative picture names was associated with slower reaction times and enhanced amplitudes of a positive component around 400 ms as compared to monitoring letters in neutral picture names. We propose that this modulation reflects a disruption in phonological encoding processes as a consequence of the capture of attention by affective content. Grapheme monitoring in positive picture names also elicited higher amplitudes than letter searching in neutral image names in a positive component around 100 ms. This amplitude enhancement might be interpreted as a manifestation of the 'positive offset' during conceptual preparation processes. The results of a control experiment with a passive viewing task showed that both effects cannot be simply attributed to the processing of the emotional images per se. Overall, it seems that emotion modulates word production at several processing stages.
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Affiliation(s)
- José A Hinojosa
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, 28040 Madrid, Spain.
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29
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Camen C, Morand S, Laganaro M. Re-evaluating the time course of gender and phonological encoding during silent monitoring tasks estimated by ERP: serial or parallel processing? JOURNAL OF PSYCHOLINGUISTIC RESEARCH 2010; 39:35-49. [PMID: 19644758 DOI: 10.1007/s10936-009-9124-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Accepted: 07/13/2009] [Indexed: 05/28/2023]
Abstract
Neurolinguistic and psycholinguistic studies suggest that grammatical (gender) and phonological information are retrieved independently and that gender can be accessed before phonological information. This study investigated the relative time courses of gender and phonological encoding using topographic evoked potentials mapping methods. Event-related brain potentials (ERPs) were recorded using a high resolution electroencephalogram (EEG) system (128 channels) during gender and phoneme monitoring in silent picture naming. Behavioural results showed similar reaction times (RT) between gender and word onset (first phoneme) monitoring, and longer RT when monitoring the second syllable onset. Temporal segmentation analysis (defining dominant map topographies using cluster analysis) revealed no timing difference between gender monitoring and word onset monitoring: both effects fall within the same time window at about 270-290 ms after picture presentation. Monitoring a second syllable onset generated a later effect at about 480 ms. Direct comparison between gender and first phoneme monitoring revealed a difference of only 10 ms between tasks at approximately 200 ms. Taken together, these results suggest that lemma retrieval and phonological encoding may proceed in parallel or overlap. Word onset is retrieved simultaneously with gender, while the longer RT and the later ERP effect for second syllable onset reflect that segmental encoding continues incrementally to the following phonemes.
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Affiliation(s)
- Christian Camen
- Division of Rehabilitation, University Hospital & University of Geneva, Geneva, Switzerland
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30
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Crosson B, Ford A, McGregor KM, Meinzer M, Cheshkov S, Li X, Walker-Batson D, Briggs RW. Functional imaging and related techniques: an introduction for rehabilitation researchers. JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT 2010; 47:vii-xxxiv. [PMID: 20593321 PMCID: PMC3225087 DOI: 10.1682/jrrd.2010.02.0017] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Functional neuroimaging and related neuroimaging techniques are becoming important tools for rehabilitation research. Functional neuroimaging techniques can be used to determine the effects of brain injury or disease on brain systems related to cognition and behavior and to determine how rehabilitation changes brain systems. These techniques include: functional magnetic resonance imaging (fMRI), positron emission tomography (PET), electroencephalography (EEG), magnetoencephalography (MEG), near infrared spectroscopy (NIRS), and transcranial magnetic stimulation (TMS). Related diffusion weighted magnetic resonance imaging techniques (DWI), including diffusion tensor imaging (DTI) and high angular resolution diffusion imaging (HARDI), can quantify white matter integrity. With the proliferation of these imaging techniques in rehabilitation research, it is critical that rehabilitation researchers, as well as consumers of rehabilitation research, become familiar with neuroimaging techniques, what they can offer, and their strengths and weaknesses The purpose to this review is to provide such an introduction to these neuroimaging techniques.
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Affiliation(s)
- Bruce Crosson
- VA RR&D Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, Gainesville, Florida
- Department of Clinical & Health Psychology, University of Florida, Gainesville, Florida
| | - Anastasia Ford
- Department of Psychology, University of Florida, Gainesville, Florida
| | - Keith M. McGregor
- VA RR&D Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, Gainesville, Florida
- Department of Psychology, University of Florida, Gainesville, Florida
| | - Marcus Meinzer
- Department of Clinical & Health Psychology, University of Florida, Gainesville, Florida
| | - Sergey Cheshkov
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Xiufeng Li
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | | | - Richard W. Briggs
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
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Laganaro M, Morand S, Schnider A. Time course of evoked-potential changes in different forms of anomia in aphasia. J Cogn Neurosci 2009; 21:1499-510. [PMID: 18823253 DOI: 10.1162/jocn.2009.21117] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Impaired word production after brain damage can be due to impairment at lexical-semantic or at lexical-phonological levels of word encoding. These processes are thought to involve different brain regions and to have different time courses. The present study investigated the time course of electrophysiological correlates of anomia in 16 aphasic speakers, divided in two subgroups according to their anomic pattern (8 with lexical-semantic impairment and 8 with lexical-phonological impairment), in comparison to 16 healthy control subjects performing the same picture naming task. Differences in amplitudes and in topographic maps between groups were differently distributed when the whole heterogeneous group of aphasic patients was compared to the control group and when the two more homogeneous subgroups of anomic patients were analyzed. The entire aphasic group expressed different waveforms and topographic patterns than the control group starting about 100 msec after picture presentation. When two subgroups of aphasic patients are considered according to the underlying cognitive impairment, early event-related potential (ERP) abnormalities (100-250 msec) appeared only in the lexical-semantic subgroup, whereas later ERP abnormalities (300-450 msec) occurred only in the lexical-phonological subgroup. These results indicate that the time windows of ERP abnormalities vary depending on the underlying anomic impairment. Moreover, the findings give support to current hypotheses on the time course of processes involved in word production during picture naming.
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Affiliation(s)
- Marina Laganaro
- Geneva University Hospital and University of Geneva, Switzerland.
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