Associations between retained primitive reflexes and cognitive performance in autism spectrum disorder / Gerry LEISMAN in Research in Autism, 129 (January 2025)  

Public ISBD [article]  inResearch in Autism > 129 (January 2025) . - 202744 Titre : Associations between retained primitive reflexes and cognitive performance in autism spectrum disorder Type de document : texte imprimé Auteurs : Gerry LEISMAN, Auteur ; Robert MELILLO, Auteur ; Yanin MACHADO-FERRER, Auteur ; Mauricio CHINCHILLA-ACOSTA, Auteur ; Calixto MACHADO, Auteur ; Ty MELILLO, Auteur ; Eli CARMELI, Auteur Article en page(s) : 202744 Langues : Anglais (eng) Mots-clés : Retained primitive reflexes  Autism spectrum disorder  Cognition  Hemisphere specific training  Bottom-up processing  Maturational delay  Top-down processing Index. décimale : PER Périodiques Résumé : Objective We hypothesized that directing multimodal sensory stimulation to one side of the brain, particularly targeting theoretically underdeveloped networks, would facilitate the integration of hemispheric connectivities, and these changes would be observed alongside improvements in cognitive function in individuals with autism spectrum disorder (ASD). Method Transcutaneous Electrical Nerve Stimulation (T.E.N.S.) was applied as the primary somatosensory modality to stimulate the right hemisphere, along with retained primitive reflex stimulation. Neuropsychological testing included behavioral scales, academic achievement measures, and IQ subtest scores. In this study, we sought evidence to identify objective deficits that correlated with retained primitive reflexes and cognitive function. We then compared the existence of retained primitive reflexes and cognitive function in each participant before and after hemispheric stimulation, as well as in comparison to a control group receiving sham treatment. Results Support was found for the observation that reduction of retained primitive reflexes following unilateral T.E.N.S. stimulation was associated with concurrent improvements in cognitive performance in ASD. While these findings suggest parallel changes, the present study cannot determine whether reflex integration mediates the cognitive gains or whether both are influenced by broader changes in neural connectivity. En ligne : https://doi.org/10.1016/j.reia.2025.202744 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=573 [article] Associations between retained primitive reflexes and cognitive performance in autism spectrum disorder [texte imprimé] / Gerry LEISMAN, Auteur ; Robert MELILLO, Auteur ; Yanin MACHADO-FERRER, Auteur ; Mauricio CHINCHILLA-ACOSTA, Auteur ; Calixto MACHADO, Auteur ; Ty MELILLO, Auteur ; Eli CARMELI, Auteur . - 202744. Langues : Anglais (eng) in Research in Autism > 129 (January 2025) . - 202744 Mots-clés : Retained primitive reflexes  Autism spectrum disorder  Cognition  Hemisphere specific training  Bottom-up processing  Maturational delay  Top-down processing Index. décimale : PER Périodiques Résumé : Objective We hypothesized that directing multimodal sensory stimulation to one side of the brain, particularly targeting theoretically underdeveloped networks, would facilitate the integration of hemispheric connectivities, and these changes would be observed alongside improvements in cognitive function in individuals with autism spectrum disorder (ASD). Method Transcutaneous Electrical Nerve Stimulation (T.E.N.S.) was applied as the primary somatosensory modality to stimulate the right hemisphere, along with retained primitive reflex stimulation. Neuropsychological testing included behavioral scales, academic achievement measures, and IQ subtest scores. In this study, we sought evidence to identify objective deficits that correlated with retained primitive reflexes and cognitive function. We then compared the existence of retained primitive reflexes and cognitive function in each participant before and after hemispheric stimulation, as well as in comparison to a control group receiving sham treatment. Results Support was found for the observation that reduction of retained primitive reflexes following unilateral T.E.N.S. stimulation was associated with concurrent improvements in cognitive performance in ASD. While these findings suggest parallel changes, the present study cannot determine whether reflex integration mediates the cognitive gains or whether both are influenced by broader changes in neural connectivity. En ligne : https://doi.org/10.1016/j.reia.2025.202744 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=573

QEEG Spectral and Coherence Assessment of Autistic Children in Three Different Experimental Conditions / Calixto MACHADO in Journal of Autism and Developmental Disorders, 45-2 (February 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.406-424 Titre : QEEG Spectral and Coherence Assessment of Autistic Children in Three Different Experimental Conditions Type de document : texte imprimé Auteurs : Calixto MACHADO, Auteur ; Mario ESTÉVEZ, Auteur ; Gerry LEISMAN, Auteur ; Robert MELILLO, Auteur ; Rafael RODRÍGUEZ, Auteur ; Phillip DEFINA, Auteur ; Adrián HERNÁNDEZ, Auteur ; Jesús PÉREZ-NELLAR, Auteur ; Rolando NARANJO, Auteur ; Mauricio CHINCHILLA, Auteur ; Nicolás GARÓFALO, Auteur ; José VARGAS, Auteur ; Carlos BELTRÁN, Auteur Article en page(s) : p.406-424 Langues : Anglais (eng) Mots-clés : Autism  Autism spectrum disorder  EEG  QEEG Index. décimale : PER Périodiques Résumé : We studied autistics by quantitative EEG spectral and coherence analysis during three experimental conditions: basal, watching a cartoon with audio (V–A), and with muted audio band (VwA). Significant reductions were found for the absolute power spectral density (PSD) in the central region for delta and theta, and in the posterior region for sigma and beta bands, lateralized to the right hemisphere. When comparing VwA versus the V–A in the midline regions, we found significant decrements of absolute PSD for delta, theta and alpha, and increments for the beta and gamma bands. In autistics, VwA versus V–A tended to show lower coherence values in the right hemisphere. An impairment of visual and auditory sensory integration in autistics might explain our results. En ligne : http://dx.doi.org/10.1007/s10803-013-1909-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258 [article] QEEG Spectral and Coherence Assessment of Autistic Children in Three Different Experimental Conditions [texte imprimé] / Calixto MACHADO, Auteur ; Mario ESTÉVEZ, Auteur ; Gerry LEISMAN, Auteur ; Robert MELILLO, Auteur ; Rafael RODRÍGUEZ, Auteur ; Phillip DEFINA, Auteur ; Adrián HERNÁNDEZ, Auteur ; Jesús PÉREZ-NELLAR, Auteur ; Rolando NARANJO, Auteur ; Mauricio CHINCHILLA, Auteur ; Nicolás GARÓFALO, Auteur ; José VARGAS, Auteur ; Carlos BELTRÁN, Auteur . - p.406-424. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.406-424 Mots-clés : Autism  Autism spectrum disorder  EEG  QEEG Index. décimale : PER Périodiques Résumé : We studied autistics by quantitative EEG spectral and coherence analysis during three experimental conditions: basal, watching a cartoon with audio (V–A), and with muted audio band (VwA). Significant reductions were found for the absolute power spectral density (PSD) in the central region for delta and theta, and in the posterior region for sigma and beta bands, lateralized to the right hemisphere. When comparing VwA versus the V–A in the midline regions, we found significant decrements of absolute PSD for delta, theta and alpha, and increments for the beta and gamma bands. In autistics, VwA versus V–A tended to show lower coherence values in the right hemisphere. An impairment of visual and auditory sensory integration in autistics might explain our results. En ligne : http://dx.doi.org/10.1007/s10803-013-1909-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258

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