252 recherche sur le mot-clé 'Event-related-potential'

Chronometrical analysis of event-related potentials and reaction time in patients with multiple lacunar infarcts / Hisao TACHIBANA in Cognitive Brain Research, 1-3 (October 1993)

Public ISBD [article]  inCognitive Brain Research > 1-3 (October 1993) . - p.193-196 Titre : Chronometrical analysis of event-related potentials and reaction time in patients with multiple lacunar infarcts Type de document : texte imprimé Auteurs : Hisao TACHIBANA, Auteur ; Kazuo TODA, Auteur ; Kazumi ARAGANE, Auteur ; Minoru SUGITA, Auteur Année de publication : 1993 Article en page(s) : p.193-196 Langues : Anglais (eng) Mots-clés : Event-related-potential P3 N2 Reaction-time Multiple-lacunar-infarct Cognition Index. décimale : PER Périodiques Résumé : We measured the visual event-related potentials (ERPs) and reaction time (RT) in 31 patients with multiple lacunar infarcts and 18 age-equivalent normal subjects. The N2 and RT latencies of the patients were significantly longer than those of normal subjects, although P2 and P3 latencies did not differ between the two groups. However, the time from N2 to RT did not differ between the two groups. These observations suggest that the impairment of cognitive information processing in these patients arises from an uncertainty in classifying the perceived event, while motor organization time is relatively well preserved. In addition, the N2 latency may be more sensitive in detecting cognitive impairment in such patients. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781 [article] Chronometrical analysis of event-related potentials and reaction time in patients with multiple lacunar infarcts [texte imprimé] / Hisao TACHIBANA, Auteur ; Kazuo TODA, Auteur ; Kazumi ARAGANE, Auteur ; Minoru SUGITA, Auteur . - 1993 . - p.193-196. Langues : Anglais (eng) in Cognitive Brain Research > 1-3 (October 1993) . - p.193-196 Mots-clés : Event-related-potential P3 N2 Reaction-time Multiple-lacunar-infarct Cognition Index. décimale : PER Périodiques Résumé : We measured the visual event-related potentials (ERPs) and reaction time (RT) in 31 patients with multiple lacunar infarcts and 18 age-equivalent normal subjects. The N2 and RT latencies of the patients were significantly longer than those of normal subjects, although P2 and P3 latencies did not differ between the two groups. However, the time from N2 to RT did not differ between the two groups. These observations suggest that the impairment of cognitive information processing in these patients arises from an uncertainty in classifying the perceived event, while motor organization time is relatively well preserved. In addition, the N2 latency may be more sensitive in detecting cognitive impairment in such patients. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781

Distinctions and similarities among working memory processes: an event-related potential study / Daniel S. RUCHKIN in Cognitive Brain Research, 1-1 (June 1992)

Public ISBD [article]  inCognitive Brain Research > 1-1 (June 1992) . - p.53-66 Titre : Distinctions and similarities among working memory processes: an event-related potential study Type de document : texte imprimé Auteurs : Daniel S. RUCHKIN, Auteur ; Ray Jr JOHNSON, Auteur ; Jordan GRAFMAN, Auteur ; Howard CANOUNE, Auteur ; Walter RITTER, Auteur Année de publication : 1992 Article en page(s) : p.53-66 Langues : Anglais (eng) Mots-clés : Event-related-potential Slow-wave Working-memory Short-term-memory Visuo-spatial-sketch-pad Articulatory-rehearsal Index. décimale : PER Périodiques Résumé : Working memory has been conceptualized as consiting of a number of components, such as an articulatory loop for rehearsing verbal material, a visuo-spatial sketch pad for maintaining visual images and a central executive that controls which information is made available for conscious processing. We recorded event-related brain potentials (ERPs) from normal human subjects while they maintained either visuo-spatial or phonological material in short-term memory for a 5-s interval. The results indicated that specialized brain systems for short-term storage of phonological and visuo-spatial information could be identified on the basis of marked differences between the topographies and morphologies of the ERP components elicited during these two types of short-term memory. The differences emerged during early encoding stages and continued through later retention stages. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=780 [article] Distinctions and similarities among working memory processes: an event-related potential study [texte imprimé] / Daniel S. RUCHKIN, Auteur ; Ray Jr JOHNSON, Auteur ; Jordan GRAFMAN, Auteur ; Howard CANOUNE, Auteur ; Walter RITTER, Auteur . - 1992 . - p.53-66. Langues : Anglais (eng) in Cognitive Brain Research > 1-1 (June 1992) . - p.53-66 Mots-clés : Event-related-potential Slow-wave Working-memory Short-term-memory Visuo-spatial-sketch-pad Articulatory-rehearsal Index. décimale : PER Périodiques Résumé : Working memory has been conceptualized as consiting of a number of components, such as an articulatory loop for rehearsing verbal material, a visuo-spatial sketch pad for maintaining visual images and a central executive that controls which information is made available for conscious processing. We recorded event-related brain potentials (ERPs) from normal human subjects while they maintained either visuo-spatial or phonological material in short-term memory for a 5-s interval. The results indicated that specialized brain systems for short-term storage of phonological and visuo-spatial information could be identified on the basis of marked differences between the topographies and morphologies of the ERP components elicited during these two types of short-term memory. The differences emerged during early encoding stages and continued through later retention stages. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=780

Event-related brain potentials during natural speech processing: effects of semantic, morphological and syntactic violations / Angela D. FRIEDERICI in Cognitive Brain Research, 1-3 (October 1993)

Public ISBD [article]  inCognitive Brain Research > 1-3 (October 1993) . - p.183-192 Titre : Event-related brain potentials during natural speech processing: effects of semantic, morphological and syntactic violations Type de document : texte imprimé Auteurs : Angela D. FRIEDERICI, Auteur ; Erdmut PFEIFER, Auteur ; Anja HAHNE, Auteur Année de publication : 1993 Article en page(s) : p.183-192 Langues : Anglais (eng) Mots-clés : Event-related-potential N400 Auditory-word-processing Semantic-priming Syntactic-priming Index. décimale : PER Périodiques Résumé : The present study investigated different aspects of auditory language comprehension. The sentences which were presented as connected speech were either correct or incorrect including a semantic error (selectional restriction), a morphological error (verb inflection), or a syntactic error (phrase structure). After each sentence, a probe word was presented auditorily, and subjects had to decide whether this word was part of the preceding sentence or not. Event-related brain potentials (ERPs) were recorded from 7 scalp electrodes. The ERPs evoked by incorrect sentences differed significantly from the correct ones as a function of error type. Semantic anomalies evoked a ‘classical’ N400 pattern. Morphological errors elicited a pronounced negativity between 300 and 600 ms followed by late positivity. Syntactic errors, in contrast, evoked an early negativity peaking around 180 ms followed by a negativity around 400 ms. The early negativity was only significant over the left anterior electrode. The present data demonstrate that linguistic errors of different categories evoke different ERP patterns. They indicate that with using connected speech as input, different aspects of language comprehension processes cannot only be described with respect to their temporal structure, but eventually also with respect to possible brain systems subserving these processes. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781 [article] Event-related brain potentials during natural speech processing: effects of semantic, morphological and syntactic violations [texte imprimé] / Angela D. FRIEDERICI, Auteur ; Erdmut PFEIFER, Auteur ; Anja HAHNE, Auteur . - 1993 . - p.183-192. Langues : Anglais (eng) in Cognitive Brain Research > 1-3 (October 1993) . - p.183-192 Mots-clés : Event-related-potential N400 Auditory-word-processing Semantic-priming Syntactic-priming Index. décimale : PER Périodiques Résumé : The present study investigated different aspects of auditory language comprehension. The sentences which were presented as connected speech were either correct or incorrect including a semantic error (selectional restriction), a morphological error (verb inflection), or a syntactic error (phrase structure). After each sentence, a probe word was presented auditorily, and subjects had to decide whether this word was part of the preceding sentence or not. Event-related brain potentials (ERPs) were recorded from 7 scalp electrodes. The ERPs evoked by incorrect sentences differed significantly from the correct ones as a function of error type. Semantic anomalies evoked a ‘classical’ N400 pattern. Morphological errors elicited a pronounced negativity between 300 and 600 ms followed by late positivity. Syntactic errors, in contrast, evoked an early negativity peaking around 180 ms followed by a negativity around 400 ms. The early negativity was only significant over the left anterior electrode. The present data demonstrate that linguistic errors of different categories evoke different ERP patterns. They indicate that with using connected speech as input, different aspects of language comprehension processes cannot only be described with respect to their temporal structure, but eventually also with respect to possible brain systems subserving these processes. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781

Phonological effects on the auditory N400 event-related brain potential / Peter PRAAMSTRA in Cognitive Brain Research, 1-2 (April 1993)

Public ISBD [article]  inCognitive Brain Research > 1-2 (April 1993) . - p.73-86 Titre : Phonological effects on the auditory N400 event-related brain potential Type de document : texte imprimé Auteurs : Peter PRAAMSTRA, Auteur ; Dick F. STEGEMAN, Auteur Année de publication : 1993 Article en page(s) : p.73-86 Langues : Anglais (eng) Mots-clés : Event-related-potential Auditory-N400 Phonological-priming Lexical-decision Rhyme-matching Index. décimale : PER Périodiques Résumé : We report 3 experiments exploring the responsiveness of the auditory N400 event-related potential to the phonological relations between word or non-word targets and preceding prime words. When subjects had to decide whether primes and targets rhymed, non-rhyming words produced greater negativity in the N400 time range than rhyming words. The same effect was obtained when these targets were spoken by another voice than the prime words, suggesting that the effect is determined by phonological factors, and not merely by a physical-acoustic mismatch (Experiment 1). In the rhyming task, the differential N400 for non-rhyming vs. rhyming words was equally pronounced for non-rhyming vs. rhyming non-words (Experiment 2). In a lexical decision task on the same stimuli, a difference between non-rhyming and rhyming targets was obtained for words, but not for non-words (Experiment 3). The results show that the auditory N400 is sensitive to phonological variables. It is further proposed that phonological effects on the auditory N400 are not manifestations unique to phonological processes that demand conscious attention, but may also reflect operations that are performed automatically during auditory word recognition. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=780 [article] Phonological effects on the auditory N400 event-related brain potential [texte imprimé] / Peter PRAAMSTRA, Auteur ; Dick F. STEGEMAN, Auteur . - 1993 . - p.73-86. Langues : Anglais (eng) in Cognitive Brain Research > 1-2 (April 1993) . - p.73-86 Mots-clés : Event-related-potential Auditory-N400 Phonological-priming Lexical-decision Rhyme-matching Index. décimale : PER Périodiques Résumé : We report 3 experiments exploring the responsiveness of the auditory N400 event-related potential to the phonological relations between word or non-word targets and preceding prime words. When subjects had to decide whether primes and targets rhymed, non-rhyming words produced greater negativity in the N400 time range than rhyming words. The same effect was obtained when these targets were spoken by another voice than the prime words, suggesting that the effect is determined by phonological factors, and not merely by a physical-acoustic mismatch (Experiment 1). In the rhyming task, the differential N400 for non-rhyming vs. rhyming words was equally pronounced for non-rhyming vs. rhyming non-words (Experiment 2). In a lexical decision task on the same stimuli, a difference between non-rhyming and rhyming targets was obtained for words, but not for non-words (Experiment 3). The results show that the auditory N400 is sensitive to phonological variables. It is further proposed that phonological effects on the auditory N400 are not manifestations unique to phonological processes that demand conscious attention, but may also reflect operations that are performed automatically during auditory word recognition. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=780

The effects of age on the N200 component of the auditory event-related potentials / Hideo ENOKI in Cognitive Brain Research, 1-3 (October 1993)

Public ISBD [article]  inCognitive Brain Research > 1-3 (October 1993) . - p.161-167 Titre : The effects of age on the N200 component of the auditory event-related potentials Type de document : texte imprimé Auteurs : Hideo ENOKI, Auteur ; Satoshi SANADA, Auteur ; Harumi YOSHINAGA, Auteur ; Eiji OKA, Auteur ; Shunsuke OHTAHARA, Auteur Année de publication : 1993 Article en page(s) : p.161-167 Langues : Anglais (eng) Mots-clés : Event-related-potential N200 P300 Child Development Aging Index. décimale : PER Périodiques Résumé : This study was undertaken to determine the effects of development and aging on N200 of event-related potentials from childhood to adulthood. Event-related potentials were recorded from 164 normal subjects ranging in age from 4 to 77 years. A total of 127 of the 164 subjects demonstrated N200 peaks. N200 showed marked developmental changes. During childhood, the N200 latency decreased rapidly with age to the minimum (217±17.3 ms) at 16 years of age, while it was prolonged gradually with age during adulthood. The latency/age slope in the subjects from 5 to 15 years of age was -9.03 ms/year, while +0.97 ms/year in those from 16 to 77. The N200-P300 interpeak latency remained constant in all age groups and showed no age-related changes. The N200 amplitude decreased as age increased. Nineteen young cases showed N200 peaks to the frequent stimuli. Their ages ranged from 5 to 17 years. Our study suggests that N200 is valuable in evaluating the developmental and aging processes in the central nervous system. The results of this study could be used as normative data in clinical practices. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781 [article] The effects of age on the N200 component of the auditory event-related potentials [texte imprimé] / Hideo ENOKI, Auteur ; Satoshi SANADA, Auteur ; Harumi YOSHINAGA, Auteur ; Eiji OKA, Auteur ; Shunsuke OHTAHARA, Auteur . - 1993 . - p.161-167. Langues : Anglais (eng) in Cognitive Brain Research > 1-3 (October 1993) . - p.161-167 Mots-clés : Event-related-potential N200 P300 Child Development Aging Index. décimale : PER Périodiques Résumé : This study was undertaken to determine the effects of development and aging on N200 of event-related potentials from childhood to adulthood. Event-related potentials were recorded from 164 normal subjects ranging in age from 4 to 77 years. A total of 127 of the 164 subjects demonstrated N200 peaks. N200 showed marked developmental changes. During childhood, the N200 latency decreased rapidly with age to the minimum (217±17.3 ms) at 16 years of age, while it was prolonged gradually with age during adulthood. The latency/age slope in the subjects from 5 to 15 years of age was -9.03 ms/year, while +0.97 ms/year in those from 16 to 77. The N200-P300 interpeak latency remained constant in all age groups and showed no age-related changes. The N200 amplitude decreased as age increased. Nineteen young cases showed N200 peaks to the frequent stimuli. Their ages ranged from 5 to 17 years. Our study suggests that N200 is valuable in evaluating the developmental and aging processes in the central nervous system. The results of this study could be used as normative data in clinical practices. Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=781

Altered perception-action binding modulates inhibitory control in Gilles de la Tourette syndrome / Vanessa PETRUO in Journal of Child Psychology and Psychiatry, 60-9 (September 2019)  

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An Electrophysiological Investigation of Interhemispheric Transfer Time in Children and Adolescents with High-Functioning Autism Spectrum Disorders / Ann CLAWSON in Journal of Autism and Developmental Disorders, 45-2 (February 2015)  

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An Electrophysiological Investigation of Semantic Incongruity Processing by People with Asperger’s Syndrome / Howard RING in Journal of Autism and Developmental Disorders, 37-2 (February 2007)  

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Anatomical substrates of auditory selective attention: behavioral and electrophysiological effects of posterior association cortex lesions / D.L. WOODS in Cognitive Brain Research, 1-4 (December 1993)

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Assessing the integrity of auditory sensory memory processing in CLN3 disease (Juvenile Neuronal Ceroid Lipofuscinosis (Batten disease)): an auditory evoked potential study of the duration-evoked mismatch negativity (MMN) / Tufikameni BRIMA in Journal of Neurodevelopmental Disorders, 16 (2024)  

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