Correction: EEG resting-state functional connectivity: evidence for an imbalance of external/internal information integration in autism / Prany WANTZEN in Journal of Neurodevelopmental Disorders, 14 (2022)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 14 (2022) Titre : Correction: EEG resting-state functional connectivity: evidence for an imbalance of external/internal information integration in autism Type de document : texte imprimé Auteurs : Prany WANTZEN, Auteur ; Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Pierre DESAUNAY, Auteur ; Christian MILLE, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Francis EUSTACHE, Auteur ; Jean-Marc BALEYTE, Auteur ; Bérengère GUILLERY-GIRARD, Auteur Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : https://dx.doi.org/10.1186/s11689-022-09464-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=575 [article] Correction: EEG resting-state functional connectivity: evidence for an imbalance of external/internal information integration in autism [texte imprimé] / Prany WANTZEN, Auteur ; Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Pierre DESAUNAY, Auteur ; Christian MILLE, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Francis EUSTACHE, Auteur ; Jean-Marc BALEYTE, Auteur ; Bérengère GUILLERY-GIRARD, Auteur. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 14 (2022) Index. décimale : PER Périodiques En ligne : https://dx.doi.org/10.1186/s11689-022-09464-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=575

EEG resting-state functional connectivity: evidence for an imbalance of external/internal information integration in autism / Prany WANTZEN in Journal of Neurodevelopmental Disorders, 14 (2022)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 14 (2022) Titre : EEG resting-state functional connectivity: evidence for an imbalance of external/internal information integration in autism Type de document : texte imprimé Auteurs : Prany WANTZEN, Auteur ; Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Pierre DESAUNAY, Auteur ; Mille CHRISTIAN, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Francis EUSTACHE, Auteur ; Jean-Marc BALEYTE, Auteur ; Bérengère GUILLERY-GIRARD, Auteur Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder  Autistic Disorder  Brain Mapping  Electroencephalography  Humans  Magnetic Resonance Imaging  Neural Pathways  Alpha  Autism spectrum disorder  Connectivity  Dan  Dmn  Eeg  Integration  Resting state  Smn Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is associated with atypical neural activity in resting state. Most of the studies have focused on abnormalities in alpha frequency as a marker of ASD dysfunctions. However, few have explored alpha synchronization within a specific interest in resting-state networks, namely the default mode network (DMN), the sensorimotor network (SMN), and the dorsal attention network (DAN). These functional connectivity analyses provide relevant insight into the neurophysiological correlates of multimodal integration in ASD. METHODS: Using high temporal resolution EEG, the present study investigates the functional connectivity in the alpha band within and between the DMN, SMN, and the DAN. We examined eyes-closed EEG alpha lagged phase synchronization, using standardized low-resolution brain electromagnetic tomography (sLORETA) in 29 participants with ASD and 38 developing (TD) controls (age, sex, and IQ matched). RESULTS: We observed reduced functional connectivity in the ASD group relative to TD controls, within and between the DMN, the SMN, and the DAN. We identified three hubs of dysconnectivity in ASD: the posterior cingulate cortex, the precuneus, and the medial frontal gyrus. These three regions also presented decreased current source density in the alpha band. CONCLUSION: These results shed light on possible multimodal integration impairments affecting the communication between bottom-up and top-down information. The observed hypoconnectivity between the DMN, SMN, and DAN could also be related to difficulties in switching between externally oriented attention and internally oriented thoughts. En ligne : https://dx.doi.org/10.1186/s11689-022-09456-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=574 [article] EEG resting-state functional connectivity: evidence for an imbalance of external/internal information integration in autism [texte imprimé] / Prany WANTZEN, Auteur ; Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Pierre DESAUNAY, Auteur ; Mille CHRISTIAN, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Francis EUSTACHE, Auteur ; Jean-Marc BALEYTE, Auteur ; Bérengère GUILLERY-GIRARD, Auteur. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 14 (2022) Mots-clés : Autism Spectrum Disorder  Autistic Disorder  Brain Mapping  Electroencephalography  Humans  Magnetic Resonance Imaging  Neural Pathways  Alpha  Autism spectrum disorder  Connectivity  Dan  Dmn  Eeg  Integration  Resting state  Smn Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is associated with atypical neural activity in resting state. Most of the studies have focused on abnormalities in alpha frequency as a marker of ASD dysfunctions. However, few have explored alpha synchronization within a specific interest in resting-state networks, namely the default mode network (DMN), the sensorimotor network (SMN), and the dorsal attention network (DAN). These functional connectivity analyses provide relevant insight into the neurophysiological correlates of multimodal integration in ASD. METHODS: Using high temporal resolution EEG, the present study investigates the functional connectivity in the alpha band within and between the DMN, SMN, and the DAN. We examined eyes-closed EEG alpha lagged phase synchronization, using standardized low-resolution brain electromagnetic tomography (sLORETA) in 29 participants with ASD and 38 developing (TD) controls (age, sex, and IQ matched). RESULTS: We observed reduced functional connectivity in the ASD group relative to TD controls, within and between the DMN, the SMN, and the DAN. We identified three hubs of dysconnectivity in ASD: the posterior cingulate cortex, the precuneus, and the medial frontal gyrus. These three regions also presented decreased current source density in the alpha band. CONCLUSION: These results shed light on possible multimodal integration impairments affecting the communication between bottom-up and top-down information. The observed hypoconnectivity between the DMN, SMN, and DAN could also be related to difficulties in switching between externally oriented attention and internally oriented thoughts. En ligne : https://dx.doi.org/10.1186/s11689-022-09456-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=574

Exploring the Event-Related Potentials' Time Course of Associative Recognition in Autism / Pierre DESAUNAY in Autism Research, 13-11 (November 2020)  

Public ISBD [article]  inAutism Research > 13-11 (November 2020) . - p.1998-2016 Titre : Exploring the Event-Related Potentials' Time Course of Associative Recognition in Autism Type de document : texte imprimé Auteurs : Pierre DESAUNAY, Auteur ; Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Anna LAMBRECHTS, Auteur ; Prany WANTZEN, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Jean-Marc BALEYTE, Auteur ; Francis EUSTACHE, Auteur ; Dermot M. BOWLER, Auteur ; Bérengère GUILLERY-GIRARD, Auteur Article en page(s) : p.1998-2016 Langues : Anglais (eng) Mots-clés : Eeg  associative memory  autism  episodic memory  event-related potentials  late positive component  recollection Index. décimale : PER Périodiques Résumé : Behavioral data on episodic recollection in autism spectrum disorders (ASD) point limited relational memory functioning. However, the involvement of successive memory processes in the profile of episodic memory in ASD needs more study. Here, we used event-related potentials (ERP) to investigate the time course of episodic recollection with an associative recognition paradigm with picture pairs. Twenty-two participants with ASD and 32 with typical development (TD), all right-handed, were included. Behavioral results confirmed difficulties in correctly recognizing identical pairs in the ASD relative to TD group. We found an unexpected amplitude decrement on the P2 (220-270 msec) and FN400 (350-470 msec) potentials, suggesting diminished priming and familiarity effects in the ASD relative to TD group. However, ERP data revealed that the recognition of associative information relies on the same electrophysiological process (old/new effect in the 600-700-msec late positive component) in ASD participants as in TD ones, with a parietal extension in the ASD group. These results suggest that the electrophysiological processes of associative recognition are qualitatively similar in individuals with and without ASD but may differ quantitatively. This difference may be driven by the reduced early processing of picture pairs that may in turn lead to their diminished integration into the semantic memory system, being partially compensated by a greater involvement of associative memory during the recollection process. Other studies would be useful to go further in identifying these cognitive processes involved in atypical recognition in ASD and their neural substrates. Autism Res 2020, 13: 1998-2016. © 2020 International Society for Autism Research and Wiley Periodicals LLC LAY SUMMARY: We identified diminished performance on the associative recognition of picture pairs in adolescents and young adults with autism when compared to typical development. Electrophysiological data revealed qualitative similarities but quantitative differences between-group, with diminished priming and familiarity processes partially compensated by an enhanced parietal recollection process. En ligne : http://dx.doi.org/10.1002/aur.2384 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433 [article] Exploring the Event-Related Potentials' Time Course of Associative Recognition in Autism [texte imprimé] / Pierre DESAUNAY, Auteur ; Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Anna LAMBRECHTS, Auteur ; Prany WANTZEN, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Jean-Marc BALEYTE, Auteur ; Francis EUSTACHE, Auteur ; Dermot M. BOWLER, Auteur ; Bérengère GUILLERY-GIRARD, Auteur . - p.1998-2016. Langues : Anglais (eng) in Autism Research > 13-11 (November 2020) . - p.1998-2016 Mots-clés : Eeg  associative memory  autism  episodic memory  event-related potentials  late positive component  recollection Index. décimale : PER Périodiques Résumé : Behavioral data on episodic recollection in autism spectrum disorders (ASD) point limited relational memory functioning. However, the involvement of successive memory processes in the profile of episodic memory in ASD needs more study. Here, we used event-related potentials (ERP) to investigate the time course of episodic recollection with an associative recognition paradigm with picture pairs. Twenty-two participants with ASD and 32 with typical development (TD), all right-handed, were included. Behavioral results confirmed difficulties in correctly recognizing identical pairs in the ASD relative to TD group. We found an unexpected amplitude decrement on the P2 (220-270 msec) and FN400 (350-470 msec) potentials, suggesting diminished priming and familiarity effects in the ASD relative to TD group. However, ERP data revealed that the recognition of associative information relies on the same electrophysiological process (old/new effect in the 600-700-msec late positive component) in ASD participants as in TD ones, with a parietal extension in the ASD group. These results suggest that the electrophysiological processes of associative recognition are qualitatively similar in individuals with and without ASD but may differ quantitatively. This difference may be driven by the reduced early processing of picture pairs that may in turn lead to their diminished integration into the semantic memory system, being partially compensated by a greater involvement of associative memory during the recollection process. Other studies would be useful to go further in identifying these cognitive processes involved in atypical recognition in ASD and their neural substrates. Autism Res 2020, 13: 1998-2016. © 2020 International Society for Autism Research and Wiley Periodicals LLC LAY SUMMARY: We identified diminished performance on the associative recognition of picture pairs in adolescents and young adults with autism when compared to typical development. Electrophysiological data revealed qualitative similarities but quantitative differences between-group, with diminished priming and familiarity processes partially compensated by an enhanced parietal recollection process. En ligne : http://dx.doi.org/10.1002/aur.2384 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=433

Intact memory storage but impaired retrieval in visual memory in autism: New insights from an electrophysiological study / Patrice CLOCHON ; Franck DOIDY ; Thomas HINAULT ; Anna LAMBRECHTS ; Prany WANTZEN ; Fabrice WALLOIS ; Mahdi MAHMOUDZADEH ; Jean-Marc GUILE ; Fabian GUENOLE ; Jean-Marc BALEYTE ; Francis EUSTACHE ; Dermot M. BOWLER ; Bérengère GUILLERY-GIRARD in Autism Research, 16-1 (January 2023)  

Public ISBD [article]  inAutism Research > 16-1 (January 2023) . - p.99-105 Titre : Intact memory storage but impaired retrieval in visual memory in autism: New insights from an electrophysiological study Type de document : texte imprimé Auteurs : Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Thomas HINAULT, Auteur ; Anna LAMBRECHTS, Auteur ; Prany WANTZEN, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Jean-Marc BALEYTE, Auteur ; Francis EUSTACHE, Auteur ; Dermot M. BOWLER, Auteur ; Bérengère GUILLERY-GIRARD, Auteur Article en page(s) : p.99-105 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract In a recent study on visual episodic memory (Desaunay, Clochon, et al., 2020), we have shown event-related potentials (ERPs) differences associated with priming (150-300 msec), familiarity (350-470 msec), and recollection (600-700 msec), in young people with autism spectrum disorders (ASD) compared with typical development (TD). To go further into the study of the processes of storage and retrieval of the memory trace, we re-analyzed Desaunay, Clochon, et al's data using time-frequency analysis, that is, event-related synchronization and desynchronization (ERS/ERD). This allows a decomposition of the spectral power within frequency bands associated with these ERPs. We focused both on the same time windows and the same regions of interest as previously published. We mainly identified, in ASD compared with TD, reduced ERS in low-frequencies (delta, theta) in early time-windows, and non-significant differences in ERD in higher frequencies (alpha, beta1) in all time-windows. Reduced ERS during recognition confirmed previously reported diminution of priming effects and difficulties in manipulation and retrieval of both semantic and episodic information. Conversely, preserved ERD corroborates a preservation of memory storage processes. These observations are consistent with a cognitive model of memory in ASD, that suggests difficulties in cognitive operations or executive demand at retrieval, subsequent to successful long-term storage of information. Lay Summary We assessed the EEG synchronization and desynchronization, during visual episodic recognition. We observed, in youth with Autism, reduced synchronization in low-frequencies (delta, theta), suggesting reduced access to and manipulation of long-term stored information. By contrast, non-significant differences in desynchronization at higher frequencies (alpha, beta frequency bands), that support long-term stored semantic and episodic information, suggested preserved memory traces. En ligne : https://doi.org/10.1002/aur.2838 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=492 [article] Intact memory storage but impaired retrieval in visual memory in autism: New insights from an electrophysiological study [texte imprimé] / Patrice CLOCHON, Auteur ; Franck DOIDY, Auteur ; Thomas HINAULT, Auteur ; Anna LAMBRECHTS, Auteur ; Prany WANTZEN, Auteur ; Fabrice WALLOIS, Auteur ; Mahdi MAHMOUDZADEH, Auteur ; Jean-Marc GUILE, Auteur ; Fabian GUENOLE, Auteur ; Jean-Marc BALEYTE, Auteur ; Francis EUSTACHE, Auteur ; Dermot M. BOWLER, Auteur ; Bérengère GUILLERY-GIRARD, Auteur . - p.99-105. Langues : Anglais (eng) in Autism Research > 16-1 (January 2023) . - p.99-105 Index. décimale : PER Périodiques Résumé : Abstract In a recent study on visual episodic memory (Desaunay, Clochon, et al., 2020), we have shown event-related potentials (ERPs) differences associated with priming (150-300 msec), familiarity (350-470 msec), and recollection (600-700 msec), in young people with autism spectrum disorders (ASD) compared with typical development (TD). To go further into the study of the processes of storage and retrieval of the memory trace, we re-analyzed Desaunay, Clochon, et al's data using time-frequency analysis, that is, event-related synchronization and desynchronization (ERS/ERD). This allows a decomposition of the spectral power within frequency bands associated with these ERPs. We focused both on the same time windows and the same regions of interest as previously published. We mainly identified, in ASD compared with TD, reduced ERS in low-frequencies (delta, theta) in early time-windows, and non-significant differences in ERD in higher frequencies (alpha, beta1) in all time-windows. Reduced ERS during recognition confirmed previously reported diminution of priming effects and difficulties in manipulation and retrieval of both semantic and episodic information. Conversely, preserved ERD corroborates a preservation of memory storage processes. These observations are consistent with a cognitive model of memory in ASD, that suggests difficulties in cognitive operations or executive demand at retrieval, subsequent to successful long-term storage of information. Lay Summary We assessed the EEG synchronization and desynchronization, during visual episodic recognition. We observed, in youth with Autism, reduced synchronization in low-frequencies (delta, theta), suggesting reduced access to and manipulation of long-term stored information. By contrast, non-significant differences in desynchronization at higher frequencies (alpha, beta frequency bands), that support long-term stored semantic and episodic information, suggested preserved memory traces. En ligne : https://doi.org/10.1002/aur.2838 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=492

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