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Nandakumar R, Shi X, Gu H, Kim Y, Raskind WH, Peter B, Dinu V. Joint exome and metabolome analysis in individuals with dyslexia: Evidence for associated dysregulations of olfactory perception and autoimmune functions. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.27.600448. [PMID: 39005457 PMCID: PMC11244894 DOI: 10.1101/2024.06.27.600448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Dyslexia is a learning disability that negatively affects reading, writing, and spelling development at the word level in 5%-9% of children. The phenotype is variable and complex, involving several potential cognitive and physical concomitants such as sensory dysregulation and immunodeficiencies. The biological pathogenesis is not well-understood. Toward a better understanding of the biological drivers of dyslexia, we conducted the first joint exome and metabolome investigation in a pilot sample of 30 participants with dyslexia and 13 controls. In this analysis, eight metabolites of interest emerged (pyridoxine, kynurenic acid, citraconic acid, phosphocreatine, hippuric acid, xylitol, 2-deoxyuridine, and acetylcysteine). A metabolite-metabolite interaction analysis identified Krebs cycle intermediates that may be implicated in the development of dyslexia. Gene ontology analysis based on exome variants resulted in several pathways of interest, including the sensory perception of smell (olfactory) and immune system-related responses. In the joint exome and metabolite analysis, the olfactory transduction pathway emerged as the primary pathway of interest. Although the olfactory transduction and Krebs cycle pathways have not previously been described in dyslexia literature, these pathways have been implicated in other neurodevelopmental disorders including autism spectrum disorder and obsessive-compulsive disorder, suggesting the possibility of these pathways playing a role in dyslexia as well. Immune system response pathways, on the other hand, have been implicated in both dyslexia and other neurodevelopmental disorders.
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Ampollini S, Ardizzi M, Ferroni F, Cigala A. Synchrony perception across senses: A systematic review of temporal binding window changes from infancy to adolescence in typical and atypical development. Neurosci Biobehav Rev 2024; 162:105711. [PMID: 38729280 DOI: 10.1016/j.neubiorev.2024.105711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 04/14/2024] [Accepted: 05/03/2024] [Indexed: 05/12/2024]
Abstract
Sensory integration is increasingly acknowledged as being crucial for the development of cognitive and social abilities. However, its developmental trajectory is still little understood. This systematic review delves into the topic by investigating the literature about the developmental changes from infancy through adolescence of the Temporal Binding Window (TBW) - the epoch of time within which sensory inputs are perceived as simultaneous and therefore integrated. Following comprehensive searches across PubMed, Elsevier, and PsycInfo databases, only experimental, behavioral, English-language, peer-reviewed studies on multisensory temporal processing in 0-17-year-olds have been included. Non-behavioral, non-multisensory, and non-human studies have been excluded as those that did not directly focus on the TBW. The selection process was independently performed by two Authors. The 39 selected studies involved 2859 participants in total. Findings indicate a predisposition towards cross-modal asynchrony sensitivity and a composite, still unclear, developmental trajectory, with atypical development associated to increased asynchrony tolerance. These results highlight the need for consistent and thorough research into TBW development to inform potential interventions.
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Affiliation(s)
- Silvia Ampollini
- Department of Humanities, Social Sciences and Cultural Industries, University of Parma, Borgo Carissimi, 10, Parma 43121, Italy.
| | - Martina Ardizzi
- Department of Medicine and Surgery, Unit of Neuroscience, University of Parma, Via Volturno 39E, Parma 43121, Italy
| | - Francesca Ferroni
- Department of Medicine and Surgery, Unit of Neuroscience, University of Parma, Via Volturno 39E, Parma 43121, Italy
| | - Ada Cigala
- Department of Humanities, Social Sciences and Cultural Industries, University of Parma, Borgo Carissimi, 10, Parma 43121, Italy
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Marrero K, Aruljothi K, Delgadillo C, Kabbara S, Swatch L, Zagha E. Goal-Directed Learning is Multidimensional and Accompanied by Diverse and Widespread Changes in Neocortical Signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.02.13.528412. [PMID: 36824924 PMCID: PMC9948952 DOI: 10.1101/2023.02.13.528412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
New tasks are often learned in stages with each stage reflecting a different learning challenge. Accordingly, each learning stage is likely mediated by distinct neuronal processes. And yet, most rodent studies of the neuronal correlates of goal-directed learning focus on individual outcome measures and individual brain regions. Here, we longitudinally studied mice from naïve to expert performance in a head-fixed, operant conditioning whisker discrimination task. In addition to tracking the primary behavioral outcome of stimulus discrimination, we tracked and compared an array of object-based and temporal-based behavioral measures. These behavioral analyses identify multiple, partially overlapping learning stages in this task, consistent with initial response implementation, early stimulus-response generalization, and late response inhibition. To begin to understand the neuronal foundations of these learning processes, we performed widefield Ca2+ imaging of dorsal neocortex throughout learning and correlated behavioral measures with neuronal activity. We found distinct and widespread correlations between neocortical activation patterns and various behavioral measures. For example, improvements in sensory discrimination correlated with target stimulus evoked activations of licking-related cortices along with distractor stimulus evoked global cortical suppression. Our study reveals multidimensional learning for a simple goal-directed learning task and generates hypotheses for the neuronal modulations underlying these various learning processes.
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Affiliation(s)
- Krista Marrero
- Neuroscience Graduate Program, University of California, Riverside 900 University Avenue, Riverside CA 92521 USA
| | - Krithiga Aruljothi
- Department of Psychology, University of California, Riverside 900 University Avenue, Riverside CA 92521 USA
| | - Christian Delgadillo
- Division of Biomedical Sciences, University of California, Riverside 900 University Avenue, Riverside CA 92521 USA
| | - Sarah Kabbara
- Neuroscience Graduate Program, University of California, Riverside 900 University Avenue, Riverside CA 92521 USA
| | - Lovleen Swatch
- College of Natural & Agricultural Sciences, University of California, Riverside 900 University Avenue, Riverside CA 92521 USA
| | - Edward Zagha
- Neuroscience Graduate Program, University of California, Riverside 900 University Avenue, Riverside CA 92521 USA
- Department of Psychology, University of California, Riverside 900 University Avenue, Riverside CA 92521 USA
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Croom K, Rumschlag JA, Erickson MA, Binder D, Razak KA. Sex differences during development in cortical temporal processing and event related potentials in wild-type and fragile X syndrome model mice. J Neurodev Disord 2024; 16:24. [PMID: 38720271 PMCID: PMC11077726 DOI: 10.1186/s11689-024-09539-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 04/17/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Autism spectrum disorder (ASD) is currently diagnosed in approximately 1 in 44 children in the United States, based on a wide array of symptoms, including sensory dysfunction and abnormal language development. Boys are diagnosed ~ 3.8 times more frequently than girls. Auditory temporal processing is crucial for speech recognition and language development. Abnormal development of temporal processing may account for ASD language impairments. Sex differences in the development of temporal processing may underlie the differences in language outcomes in male and female children with ASD. To understand mechanisms of potential sex differences in temporal processing requires a preclinical model. However, there are no studies that have addressed sex differences in temporal processing across development in any animal model of ASD. METHODS To fill this major gap, we compared the development of auditory temporal processing in male and female wildtype (WT) and Fmr1 knock-out (KO) mice, a model of Fragile X Syndrome (FXS), a leading genetic cause of ASD-associated behaviors. Using epidural screw electrodes, we recorded auditory event related potentials (ERP) and auditory temporal processing with a gap-in-noise auditory steady state response (ASSR) paradigm at young (postnatal (p)21 and p30) and adult (p60) ages from both auditory and frontal cortices of awake, freely moving mice. RESULTS The results show that ERP amplitudes were enhanced in both sexes of Fmr1 KO mice across development compared to WT counterparts, with greater enhancement in adult female than adult male KO mice. Gap-ASSR deficits were seen in the frontal, but not auditory, cortex in early development (p21) in female KO mice. Unlike male KO mice, female KO mice show WT-like temporal processing at p30. There were no temporal processing deficits in the adult mice of both sexes. CONCLUSIONS These results show a sex difference in the developmental trajectories of temporal processing and hypersensitive responses in Fmr1 KO mice. Male KO mice show slower maturation of temporal processing than females. Female KO mice show stronger hypersensitive responses than males later in development. The differences in maturation rates of temporal processing and hypersensitive responses during various critical periods of development may lead to sex differences in language function, arousal and anxiety in FXS.
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Affiliation(s)
- Katilynne Croom
- Graduate Neuroscience Program, University of California, Riverside, USA
| | - Jeffrey A Rumschlag
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, USA
| | - Michael A Erickson
- Department of Psychology, University of California, 900 University Avenue, Riverside, USA
| | - Devin Binder
- Graduate Neuroscience Program, University of California, Riverside, USA
- Biomedical Sciences, School of Medicine, University of California, Riverside, USA
| | - Khaleel A Razak
- Graduate Neuroscience Program, University of California, Riverside, USA.
- Department of Psychology, University of California, 900 University Avenue, Riverside, USA.
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Brugnaro BH, Pauletti MF, Lima CRG, Verdério BN, Fonseca-Angulo RI, Romão-Silva B, de Campos AC, Rosenbaum P, Rocha NACF. Relationship between sensory processing patterns and gross motor function of children and adolescents with Down syndrome and typical development: a cross-sectional study. JOURNAL OF INTELLECTUAL DISABILITY RESEARCH : JIDR 2024; 68:358-368. [PMID: 38183401 DOI: 10.1111/jir.13118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 10/10/2023] [Accepted: 12/12/2023] [Indexed: 01/08/2024]
Abstract
BACKGROUND Children and adolescents with Down syndrome (DS) may experience impairments in sensory and motor skills that can be interrelated. The purposes of this study were (i) to compare the sensory processing patterns and gross motor function between children and adolescents with DS and with typical development (TD) and (ii) to explore associations between these areas in both DS and TD groups. METHOD This cross-sectional study involved a sample size of 25 participants with DS (mean age 10.24 ± 2.04 years) and 25 participants with TD (mean age 10.04 ± 2.82 years). The sensory processing patterns were assessed using the Sensory Profile Second Version questionnaire, and the gross motor function was measured with the Gross Motor Function Measure (GMFM-88) dimensions (D) standing, and (E) walking, running, and jumping. Differences between groups were tested using the Mann-Whitney test, and the relationship between the variables was examined using Spearman's correlation tests, with a significance level set at 5%. RESULTS Children with DS showed greater difficulties with sensory processing than TD children in Seeker (P < 0.001), Avoider (P < 0.001), Sensitivity (P < 0.001), Registration (P < 0.001), Auditory (P < 0.001), Touch (P = 0.001), Movements (P = 0.001), Oral (P = 0.028), Conduct (P = 0.005), Socioemotional (P < 0.001), and Attentional (P < 0.001) domains. Additionally, children with DS presented lower gross motor function than TD in GMFM-88, standing (P < 0.001) and walking, running, and jumping (P < 0.001). Correlations were found between greater difficulties with sensory processing in Touch and lower gross motor function in walking, running, and jumping for the DS group. CONCLUSION Our results suggest there are more difficulties in sensory processing patterns and gross motor function in children with DS than in TD. Also, there is a single association between more difficulties in sensory processing and less well-developed motor function in the DS group. Therefore, a comprehensive assessment of all these aspects should be performed in children and adolescents with DS, along with the provision of relevant interventions addressing specific needs.
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Affiliation(s)
- B H Brugnaro
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - M F Pauletti
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - C R G Lima
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - B N Verdério
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - R I Fonseca-Angulo
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - B Romão-Silva
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - A C de Campos
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
| | - P Rosenbaum
- Department of Pediatrics, CanChild, McMaster University, Hamilton, Ontario, Canada
| | - N A C F Rocha
- Department of Physical Therapy, Child Development Analysis Laboratory (LADI), Federal University of São Carlos (UFSCar), São Carlos, São Paulo, Brazil
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Malone AK, Hungerford ME, Smith SB, Chang NYN, Uchanski RM, Oh YH, Lewis RF, Hullar TE. Age-Related Changes in Temporal Binding Involving Auditory and Vestibular Inputs. Semin Hear 2024; 45:110-122. [PMID: 38370520 PMCID: PMC10872654 DOI: 10.1055/s-0043-1770137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024] Open
Abstract
Maintaining balance involves the combination of sensory signals from the visual, vestibular, proprioceptive, and auditory systems. However, physical and biological constraints ensure that these signals are perceived slightly asynchronously. The brain only recognizes them as simultaneous when they occur within a period of time called the temporal binding window (TBW). Aging can prolong the TBW, leading to temporal uncertainty during multisensory integration. This effect might contribute to imbalance in the elderly but has not been examined with respect to vestibular inputs. Here, we compared the vestibular-related TBW in 13 younger and 12 older subjects undergoing 0.5 Hz sinusoidal rotations about the earth-vertical axis. An alternating dichotic auditory stimulus was presented at the same frequency but with the phase varied to determine the temporal range over which the two stimuli were perceived as simultaneous at least 75% of the time, defined as the TBW. The mean TBW among younger subjects was 286 ms (SEM ± 56 ms) and among older subjects was 560 ms (SEM ± 52 ms). TBW was related to vestibular sensitivity among younger but not older subjects, suggesting that a prolonged TBW could be a mechanism for imbalance in the elderly person independent of changes in peripheral vestibular function.
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Affiliation(s)
| | - Michelle E. Hungerford
- VA RR&D National Center for Rehabilitative Auditory Research, VA Portland Health Care System, Portland, Oregon
- Department of Otolaryngology—Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon
| | - Spencer B. Smith
- Department of Speech, Language, and Hearing Sciences, University of Texas, Austin, Texas
| | - Nai-Yuan N. Chang
- Department of Oral and Maxillofacial Surgery, Oregon Health and Science University, Portland, Oregon
| | - Rosalie M. Uchanski
- Department of Otolaryngology - Head and Neck Surgery, Washington University in St. Louis, St. Louis, Missouri
| | - Yong-Hee Oh
- University of Louisville, Louisville, Kentucky
| | - Richard F. Lewis
- Departments of Otolaryngology and Neurology, Harvard Medical School, Boston, Massachusetts
| | - Timothy E. Hullar
- VA RR&D National Center for Rehabilitative Auditory Research, VA Portland Health Care System, Portland, Oregon
- Department of Otolaryngology—Head and Neck Surgery, Oregon Health and Science University, Portland, Oregon
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Glica A, Wasilewska K, Kossowski B, Żygierewicz J, Jednoróg K. Sex Differences in Low-Level Multisensory Integration in Developmental Dyslexia. J Neurosci 2024; 44:e0944232023. [PMID: 38050156 PMCID: PMC10860626 DOI: 10.1523/jneurosci.0944-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 10/13/2023] [Accepted: 10/19/2023] [Indexed: 12/06/2023] Open
Abstract
Reading acquisition involves the integration of auditory and visual stimuli. Thus, low-level audiovisual multisensory integration might contribute to disrupted reading in developmental dyslexia. Although dyslexia is more frequently diagnosed in males and emerging evidence indicates that the neural basis of dyslexia might differ between sexes, previous studies examining multisensory integration did not evaluate potential sex differences nor tested its neural correlates. In the current study on 88 adolescents and young adults, we found that only males with dyslexia showed a deficit in multisensory integration of simple nonlinguistic stimuli. At the neural level, both females and males with dyslexia presented smaller differences in response to multisensory compared to those in response to unisensory conditions in the N1 and N2 components (early components of event-related potentials associated with sensory processing) than the control group. Additionally, in a subsample of 80 participants matched for nonverbal IQ, only males with dyslexia exhibited smaller differences in the left hemisphere in response to multisensory compared to those in response to unisensory conditions in the N1 component. Our study indicates that deficits of multisensory integration seem to be more severe in males than females with dyslexia. This provides important insights into sex-modulated cognitive processes that might confer vulnerability to reading difficulties.
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Affiliation(s)
- Agnieszka Glica
- Laboratory of Language Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw 02-093, Poland
| | - Katarzyna Wasilewska
- Laboratory of Language Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw 02-093, Poland
| | - Bartosz Kossowski
- Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw 02-093, Poland
| | | | - Katarzyna Jednoróg
- Laboratory of Language Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw 02-093, Poland
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Al-Hendawi M, Hussein E, Al Ghafri B, Bulut S. A Scoping Review of Studies on Assistive Technology Interventions and Their Impact on Individuals with Autism Spectrum Disorder in Arab Countries. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1828. [PMID: 38002919 PMCID: PMC10670675 DOI: 10.3390/children10111828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023]
Abstract
The rising prevalence of autism spectrum disorder (ASD) in Arab countries necessitates evidence-based interventions. Assistive technology (AT) presents a promising approach. However, data on the pervasiveness of AT use and its effectiveness for individuals with ASD, specifically within Arab countries, remain scarce. OBJECTIVE To review the current literature on the AT interventions and outcomes reported for individuals with ASD in Arab countries. METHODS A scoping review adhering to PRISMA guidelines was undertaken to explore the utilization of AT, segmented into three categories: low-technology (low-tech), mid-technology (mid-tech), and high-technology (high-tech) devices. RESULTS Twelve studies had a pooled sample of 1547 participants, primarily male school-aged children with ASD. The AT applications evaluated ranged from low-tech visual schedules and support to high-tech virtual reality systems. Studies have reported the potential benefits of AT in improving communication, social, academic, adaptive, and functional abilities; however, comparative evidence between AT interventions is limited. The identified barriers to the adoption of AT included caregiver uncertainty about the use of AT and a lack of awareness of AT among professionals and the Arab community in general. CONCLUSION Available studies suggest that the adoption of AT can enhance the skills of individuals with ASD in Arab countries. However, more rigorous studies across diverse demographic groups and Arab national regions are needed to strengthen the evidence base and provide appropriate recommendations.
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Affiliation(s)
- Maha Al-Hendawi
- Department of Psychological Sciences, College of Education, Qatar University, Doha P.O. Box 2713, Qatar; (E.H.); (B.A.G.)
| | - Esraa Hussein
- Department of Psychological Sciences, College of Education, Qatar University, Doha P.O. Box 2713, Qatar; (E.H.); (B.A.G.)
| | - Badriya Al Ghafri
- Department of Psychological Sciences, College of Education, Qatar University, Doha P.O. Box 2713, Qatar; (E.H.); (B.A.G.)
| | - Sefa Bulut
- Department of Counseling Psychology, School of Education, Ibn Haldun University, 34494 İstanbul, Turkey;
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Ruiz Callejo D, Boets B. A systematic review on speech-in-noise perception in autism. Neurosci Biobehav Rev 2023; 154:105406. [PMID: 37797728 DOI: 10.1016/j.neubiorev.2023.105406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023]
Abstract
Individuals with autism spectrum disorder (ASD) exhibit atypical speech-in-noise (SiN) perception, but the scope of these impairments has not been clearly defined. We conducted a systematic review of the behavioural research on SiN perception in ASD, using a comprehensive search strategy across databases (Embase, Pubmed, Web of Science, APA PsycArticles, LLBA, clinicaltrials.gov and PsyArXiv). We withheld 20 studies that generally revealed intact speech perception in stationary noise, while impairments in speech discrimination were found in temporally modulated noise, concurrent speech, and audiovisual speech perception. An association with auditory temporal processing deficits, exacerbated by suboptimal language skills, is shown. Speech-in-speech perception might be further impaired due to deficient top-down processing of speech. Further research is needed to address remaining challenges and gaps in our understanding of these impairments, including the developmental aspects of SiN processing in ASD, and the impact of gender and social attentional orienting on this ability. Our findings have important implications for improving communication in ASD, both in daily interactions and in clinical and educational settings.
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Affiliation(s)
- Diego Ruiz Callejo
- University Psychiatric Center KU Leuven, Leuven, Belgium; Center for Developmental Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium.
| | - Bart Boets
- University Psychiatric Center KU Leuven, Leuven, Belgium; Center for Developmental Psychiatry, Department of Neurosciences, KU Leuven, Leuven, Belgium; Leuven Autism Research (LauRes), KU Leuven, Leuven, Belgium; Leuven Brain Institute (LBI), KU Leuven, Leuven, Belgium
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Clément G, Kuldavletova O, Macaulay TR, Wood SJ, Navarro Morales DC, Toupet M, Hautefort C, Van Nechel C, Quarck G, Denise P. Cognitive and balance functions of astronauts after spaceflight are comparable to those of individuals with bilateral vestibulopathy. Front Neurol 2023; 14:1284029. [PMID: 37965165 PMCID: PMC10641777 DOI: 10.3389/fneur.2023.1284029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 10/06/2023] [Indexed: 11/16/2023] Open
Abstract
Introduction This study compares the balance control and cognitive responses of subjects with bilateral vestibulopathy (BVP) to those of astronauts immediately after they return from long-duration spaceflight on board the International Space Station. Methods Twenty-eight astronauts and thirty subjects with BVP performed five tests using the same procedures: sit-to-stand, walk-and-turn, tandem walk, duration judgment, and reaction time. Results Compared to the astronauts' preflight responses, the BVP subjects' responses were impaired in all five tests. However, the BVP subjects' performance during the walk-and-turn and the tandem walk tests were comparable to the astronauts' performance on the day they returned from space. Moreover, the BVP subjects' time perception and reaction time were comparable to those of the astronauts during spaceflight. The BVP subjects performed the sit-to-stand test at a level that fell between the astronauts' performance on the day of landing and 1 day later. Discussion These results indicate that the alterations in dynamic balance control, time perception, and reaction time that astronauts experience after spaceflight are likely driven by central vestibular adaptations. Vestibular and somatosensory training in orbit and vestibular rehabilitation after spaceflight could be effective countermeasures for mitigating these post-flight performance decrements.
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Affiliation(s)
- Gilles Clément
- Université de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Normandie Université, Caen, France
- KBR, Houston, TX, United States
| | - Olga Kuldavletova
- Université de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Normandie Université, Caen, France
| | | | - Scott J Wood
- NASA Johnson Space Center, Houston, TX, United States
| | - Deborah C Navarro Morales
- Université de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Normandie Université, Caen, France
| | - Michel Toupet
- Centre d'Explorations Fonctionnelles Oto-Neurologiques, Paris, France
| | - Charlotte Hautefort
- Université de Paris Cité, INSERM U1141, Paris, France
- Department of Otorhinolaryngology, Assistance Publique, Hôpitaux de Paris, Lariboisière Hospital, Paris, France
| | | | - Gaëlle Quarck
- Université de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Normandie Université, Caen, France
| | - Pierre Denise
- Université de Caen Normandie, INSERM, COMETE U1075, CYCERON, CHU de Caen, Normandie Université, Caen, France
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11
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Lin R, Zeng F, Wang Q, Chen A. Cross-Modal Plasticity during Self-Motion Perception. Brain Sci 2023; 13:1504. [PMID: 38002465 PMCID: PMC10669852 DOI: 10.3390/brainsci13111504] [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: 10/08/2023] [Revised: 10/13/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
To maintain stable and coherent perception in an ever-changing environment, the brain needs to continuously and dynamically calibrate information from multiple sensory sources, using sensory and non-sensory information in a flexible manner. Here, we review how the vestibular and visual signals are recalibrated during self-motion perception. We illustrate two different types of recalibration: one long-term cross-modal (visual-vestibular) recalibration concerning how multisensory cues recalibrate over time in response to a constant cue discrepancy, and one rapid-term cross-modal (visual-vestibular) recalibration concerning how recent prior stimuli and choices differentially affect subsequent self-motion decisions. In addition, we highlight the neural substrates of long-term visual-vestibular recalibration, with profound differences observed in neuronal recalibration across multisensory cortical areas. We suggest that multisensory recalibration is a complex process in the brain, is modulated by many factors, and requires the coordination of many distinct cortical areas. We hope this review will shed some light on research into the neural circuits of visual-vestibular recalibration and help develop a more generalized theory for cross-modal plasticity.
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Affiliation(s)
- Rushi Lin
- Key Laboratory of Brain Functional Genomics (Ministry of Education), East China Normal University, 3663 Zhongshan Road N., Shanghai 200062, China; (R.L.); (F.Z.); (Q.W.)
| | - Fu Zeng
- Key Laboratory of Brain Functional Genomics (Ministry of Education), East China Normal University, 3663 Zhongshan Road N., Shanghai 200062, China; (R.L.); (F.Z.); (Q.W.)
| | - Qingjun Wang
- Key Laboratory of Brain Functional Genomics (Ministry of Education), East China Normal University, 3663 Zhongshan Road N., Shanghai 200062, China; (R.L.); (F.Z.); (Q.W.)
| | - Aihua Chen
- Key Laboratory of Brain Functional Genomics (Ministry of Education), East China Normal University, 3663 Zhongshan Road N., Shanghai 200062, China; (R.L.); (F.Z.); (Q.W.)
- NYU-ECNU Institute of Brain and Cognitive Science, New York University Shanghai, Shanghai 200122, China
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12
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Al-youzbaki MU, Schormans AL, Allman BL. Past and present experience shifts audiovisual temporal perception in rats. Front Behav Neurosci 2023; 17:1287587. [PMID: 37908200 PMCID: PMC10613659 DOI: 10.3389/fnbeh.2023.1287587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 09/25/2023] [Indexed: 11/02/2023] Open
Abstract
Our brains have a propensity to integrate closely-timed auditory and visual stimuli into a unified percept; a phenomenon that is highly malleable based on prior sensory experiences, and is known to be altered in clinical populations. While the neural correlates of audiovisual temporal perception have been investigated using neuroimaging and electroencephalography techniques in humans, animal research will be required to uncover the underlying cellular and molecular mechanisms. Prior to conducting such mechanistic studies, it is important to first confirm the translational potential of any prospective animal model. Thus, in the present study, we conducted a series of experiments to determine if rats show the hallmarks of audiovisual temporal perception observed in neurotypical humans, and whether the rat behavioral paradigms could reveal when they experienced perceptual disruptions akin to those observed in neurodevelopmental disorders. After training rats to perform a temporal order judgment (TOJ) or synchrony judgment (SJ) task, we found that the rats' perception was malleable based on their past and present sensory experiences. More specifically, passive exposure to asynchronous audiovisual stimulation in the minutes prior to behavioral testing caused the rats' perception to predictably shift in the direction of the leading stimulus; findings which represent the first time that this form of audiovisual perceptual malleability has been reported in non-human subjects. Furthermore, rats performing the TOJ task also showed evidence of rapid recalibration, in which their audiovisual temporal perception on the current trial was predictably influenced by the timing lag between the auditory and visual stimuli in the preceding trial. Finally, by manipulating either experimental testing parameters or altering the rats' neurochemistry with a systemic injection of MK-801, we showed that the TOJ and SJ tasks could identify when the rats had difficulty judging the timing of audiovisual stimuli. These findings confirm that the behavioral paradigms are indeed suitable for future testing of rats with perceptual disruptions in audiovisual processing. Overall, our collective results highlight that rats represent an excellent animal model to study the cellular and molecular mechanisms underlying the acuity and malleability of audiovisual temporal perception, as they showcase the perceptual hallmarks commonly observed in humans.
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13
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Gabay Y, Reinisch E, Even D, Binur N, Hadad BS. Intact Utilization of Contextual Information in Speech Categorization in Autism. J Autism Dev Disord 2023:10.1007/s10803-023-06106-3. [PMID: 37787847 DOI: 10.1007/s10803-023-06106-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2023] [Indexed: 10/04/2023]
Abstract
Current theories of Autism Spectrum Disorder (ASD) suggest atypical use of context in ASD, but little is known about how these atypicalities influence speech perception. We examined the influence of contextual information (lexical, spectral, and temporal) on phoneme categorization of people with ASD and in typically developed (TD) people. Across three experiments, we found that people with ASD used all types of contextual information for disambiguating speech sounds to the same extent as TD; yet they exhibited a shallower identification curve when phoneme categorization required temporal processing. Overall, the results suggest that the observed atypicalities in speech perception in ASD, including the reduced sensitivity observed here, cannot be attributed merely to the limited ability to utilize context during speech perception.
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Affiliation(s)
- Yafit Gabay
- Department of Special Education, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel.
- Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel.
| | - Eva Reinisch
- Acoustics Research Institute, Austrian Academy of Sciences, Wohllebengasse 12-14, Vienna, 1040, Austria
| | - Dana Even
- Department of Special Education, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel
- Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel
| | - Nahal Binur
- Department of Special Education, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel
- Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel
| | - Bat-Sheva Hadad
- Department of Special Education, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel
- Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, 199 Abba Khoushy Ave, Haifa, 3498838, Israel
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14
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Schormans AL, Allman BL. An imbalance of excitation and inhibition in the multisensory cortex impairs the temporal acuity of audiovisual processing and perception. Cereb Cortex 2023; 33:9937-9953. [PMID: 37464944 DOI: 10.1093/cercor/bhad256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/20/2023] Open
Abstract
The neural integration of closely timed auditory and visual stimuli can offer several behavioral advantages; however, an overly broad window of temporal integration-a phenomenon observed in various neurodevelopmental disorders-could have far-reaching perceptual consequences. Non-invasive studies in humans have suggested that the level of GABAergic inhibition in the multisensory cortex influences the temporal window over which auditory and visual stimuli are bound into a unified percept. Although this suggestion aligns with the theory that an imbalance of cortical excitation and inhibition alters multisensory processing, no prior studies have performed experimental manipulations to determine the causal effects of a reduction of GABAergic inhibition on audiovisual temporal perception. To that end, we used a combination of in vivo electrophysiology, neuropharmacology, and translational behavioral testing in rats to provide the first mechanistic evidence that a reduction of GABAergic inhibition in the audiovisual cortex is sufficient to disrupt unisensory and multisensory processing across the cortical layers, and ultimately impair the temporal acuity of audiovisual perception and its rapid adaptation to recent sensory experience. Looking forward, our findings provide support for using rat models to further investigate the neural mechanisms underlying the audiovisual perceptual alterations observed in neurodevelopmental disorders, such as autism, schizophrenia, and dyslexia.
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Affiliation(s)
- Ashley L Schormans
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Brian L Allman
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
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15
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Bertilsdotter Rosqvist H, Hjorth E, Nygren A. Meeting up in broken word/times: communication, temporality and pace in neuromixed writing. MEDICAL HUMANITIES 2023; 49:407-415. [PMID: 36631251 DOI: 10.1136/medhum-2022-012384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
The article investigates letter writing as a way to explore neurodiverse collectives, neuromixed communication and neurodiverse research collaboration. From the perspective of neurodiversity studies and translation practice/studies, the article negotiates new perspectives of inherited images of neurological selves and others, such as the non-autistic as the 'typical' in contrast to the 'atypical' autistic person. Experimenting with autistic time, allowing different sensory modalities and different approaches to time, detail and narrative, the article challenges deficit approaches to autism. Through a letter writing practice the possibilities and challenges of subjectivity, cultural translation and writing as method are examined. The article suggests that 'counter narratives' are important sources of knowledge as they reclaim personhood from dehumanising perspectives. By performing neuromixed conversation and dialogue with theoretical concepts, and pen paling as play as a fruitful form for responsible cross-neurotype translation, the article illuminates challenges and opportunities in neurodiverse collective writing.
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Affiliation(s)
| | - Elisabeth Hjorth
- HDK-Valand-Academy of Art and Design, Gothenburg University, Gothenburg, Sweden
| | - Anna Nygren
- HDK-Valand-Academy of Art and Design, Gothenburg University, Gothenburg, Sweden
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16
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Croom K, Rumschlag JA, Erickson MA, Binder DK, Razak KA. Developmental delays in cortical auditory temporal processing in a mouse model of Fragile X syndrome. J Neurodev Disord 2023; 15:23. [PMID: 37516865 PMCID: PMC10386252 DOI: 10.1186/s11689-023-09496-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/18/2023] [Indexed: 07/31/2023] Open
Abstract
BACKGROUND Autism spectrum disorders (ASD) encompass a wide array of debilitating symptoms, including sensory dysfunction and delayed language development. Auditory temporal processing is crucial for speech perception and language development. Abnormal development of temporal processing may account for the language impairments associated with ASD. Very little is known about the development of temporal processing in any animal model of ASD. METHODS In the current study, we quantify auditory temporal processing throughout development in the Fmr1 knock-out (KO) mouse model of Fragile X Syndrome (FXS), a leading genetic cause of intellectual disability and ASD-associated behaviors. Using epidural electrodes in awake and freely moving wildtype (WT) and KO mice, we recorded auditory event related potentials (ERP) and auditory temporal processing with a gap-in-noise auditory steady state response (gap-ASSR) paradigm. Mice were recorded at three different ages in a cross sectional design: postnatal (p)21, p30 and p60. Recordings were obtained from both auditory and frontal cortices. The gap-ASSR requires underlying neural generators to synchronize responses to gaps of different widths embedded in noise, providing an objective measure of temporal processing across genotypes and age groups. RESULTS We present evidence that the frontal, but not auditory, cortex shows significant temporal processing deficits at p21 and p30, with poor ability to phase lock to rapid gaps in noise. Temporal processing was similar in both genotypes in adult mice. ERP amplitudes were larger in Fmr1 KO mice in both auditory and frontal cortex, consistent with ERP data in humans with FXS. CONCLUSIONS These data indicate cortical region-specific delays in temporal processing development in Fmr1 KO mice. Developmental delays in the ability of frontal cortex to follow rapid changes in sounds may shape language delays in FXS, and more broadly in ASD.
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Affiliation(s)
- Katilynne Croom
- Graduate Neuroscience Program, University of California, Riverside, USA
| | - Jeffrey A Rumschlag
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, USA
| | | | - Devin K Binder
- Graduate Neuroscience Program, University of California, Riverside, USA
- Biomedical Sciences, School of Medicine, University of California, Riverside, USA
| | - Khaleel A Razak
- Graduate Neuroscience Program, University of California, Riverside, USA.
- Department of Psychology, University of California, Riverside, USA.
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17
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Foerster FR, Chidharom M, Giersch A. Enhanced temporal resolution of vision in action video game players. Neuroimage 2023; 269:119906. [PMID: 36739103 DOI: 10.1016/j.neuroimage.2023.119906] [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: 08/11/2022] [Revised: 01/16/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Video game play has been suggested to improve visual and attention processing. Nevertheless, while action video game play is highly dynamic, there is scarce research on how information is temporally discriminated at the millisecond level. This cross-sectional study investigates whether temporal discrimination at the millisecond level in vision varies across action video game players (VGPs; N = 23) and non-video game players (NVGPs; N = 23). Participants discriminated synchronous from asynchronous onsets of two visual targets in virtual reality, while their EEG and oculomotor movements were recorded. Results show an increased sensitivity to short asynchronies (11, 33 and 66 ms) in VGPs compared with NVGPs, which was especially marked at the start of the task, suggesting better temporal discrimination abilities. Pre-targets oculomotor freezing - the inhibition of small fixational saccades - was associated with correct temporal discrimination, probably revealing attentional preparation. However, this parameter did not differ between groups. EEG and reconstruction analyses suggest that the enhancement of temporal discrimination in VGPs during temporal discrimination is related to parieto-occipital processing, and a reduction of alpha-band (8-14 Hz) power and inter-trial phase coherence. Overall, the study reveals an enhanced ability in action video game players to discriminate in time visual events in close temporal proximity combined with reduced alpha-band oscillatory activities. Consequently, playing action video games is associated with an improved temporal resolution of vision.
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Affiliation(s)
- Francois R Foerster
- Université de Strasbourg, INSERM U1114, Pôle de Psychiatrie, Centre Hospitalier Régional Universitaire de Strasbourg, France.
| | - Matthieu Chidharom
- Department of Psychology, Lehigh University, Bethlehem, PA, United States
| | - Anne Giersch
- Université de Strasbourg, INSERM U1114, Pôle de Psychiatrie, Centre Hospitalier Régional Universitaire de Strasbourg, France
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18
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Ainsworth K, Bertone A. Audiovisual temporal binding window narrows with age in autistic individuals. Autism Res 2023; 16:355-363. [PMID: 36426723 DOI: 10.1002/aur.2860] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 11/10/2022] [Indexed: 11/27/2022]
Abstract
Atypical sensory perception has been recognized in autistic individuals since its earliest descriptions and is now considered a key characteristic of autism. Although the integration of sensory information (multisensory integration; MSI) has been demonstrated to be altered in autism, less is known about how this perceptual process differs with age. This study aimed to assess the integration of audiovisual information across autistic children and adolescents. MSI was measured using a non-social, simultaneity judgment task. Variation in temporal sensitivity was evaluated via Gaussian curve fitting procedures, allowing us to compare the width of temporal binding windows (TBWs), where wider TBWs indicate less sensitivity to temporal alignment. We compared TBWs in age and IQ matched groups of autistic (n = 32) and neurotypical (NT; n = 73) children and adolescents. The sensory profile of all participants was also measured. Across all ages assessed (i.e., 6 through 18 years), TBWs were negatively correlated with age in the autistic group. A significant correlation was not found in the NT group. When compared as a function of child (6-12 years) and adolescent (13-18 years) age groups, a significant interaction of group (autism vs NT) by age group was found, whereby TBWs became narrower with age in the autistic, but not neurotypical group. We also found a significant main effect of age and no significant main effect of group. Results suggest that TBW differences between autistic and neurotypical groups diminishes with increasing age, indicating an atypical developmental profile of MSI in autism which ameliorates across development.
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Affiliation(s)
- Kirsty Ainsworth
- Perceptual Neuroscience Laboratory (PNLab) for Autism and Development, McGill University, Montréal, Quebec, Canada.,Department of Educational and Counselling Psychology, McGill University, Montréal, Quebec, Canada
| | - Armando Bertone
- Perceptual Neuroscience Laboratory (PNLab) for Autism and Development, McGill University, Montréal, Quebec, Canada.,Department of Educational and Counselling Psychology, McGill University, Montréal, Quebec, Canada
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19
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Åkerlund S, Håkansson A, Claesdotter-Knutsson E. An auditory processing advantage enables communication in less complex social settings: Signs of an extreme female brain in children and adolescents being assessed for Autism Spectrum Disorders. Front Psychol 2023; 13:1068001. [PMID: 36710746 PMCID: PMC9880279 DOI: 10.3389/fpsyg.2022.1068001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/19/2022] [Indexed: 01/14/2023] Open
Abstract
Background The underlying factors of the male predominance in Autism Spectrum Disorders (ASD) are largely unknown, although a female advantage in social communication has been pointed out as a potential factor. Recently, attention has been given to ASD as a sensory processing disorder, focusing on the audio-visual temporal processing paramount for the development of communication. In ASD, a deviant audio-visual processing has been noted, resulting in difficulties interpreting multisensory information. Typically Developed (TD) females have shown an enhanced language processing in unisensory situations compared to multisensory situations. We aim to find out whether such an advantage also can be seen in girls within the ASD population, and if so, is it related to social communication skills? Method Forty children (IQ > 85), 20 females (mean age = 13.90 years, SD = 2.34) and 20 males (mean age = 12.15 years, SD = 2.83) triaged for an ASD assessment were recruited from a child and youth psychiatric clinic in Sweden. Using The Social Responsiveness Scale (SRS) we looked at associations with child performance on the Integrated Visual and Auditory Continuous Performance Test (IVA-2). Results An auditory advantage in the female group was associated with less rated problems in social communications in unisensory processing whereas in multisensory processing an auditory dominance was associated with more rated problems in Social Awareness. In the male group, a visual dominance was associated with more rated problems in Social Rigidity. Conclusion A female unisensory processing advantage in ASD could very well be explaining the male domination in ASD. However, the social difficulties related to multisensory processing indicate that ASD females might be struggling as hard as males in more complex settings. Implications on the assessment procedure are discussed.
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20
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Chan AS, Ding Z, Lee TL, Sze SL, Cheung MC. Temporal processing deficit in children and adolescents with autism spectrum disorder: An online assessment. Digit Health 2023; 9:20552076231171500. [PMID: 37124327 PMCID: PMC10134192 DOI: 10.1177/20552076231171500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 04/06/2023] [Indexed: 05/02/2023] Open
Abstract
Objective The sensory deficit has been considered as one of the core features in children and adolescents with autism spectrum disorder (ASD). The present study aimed to examine the temporal processing of simple and more complex auditory inputs in ASD children and adolescents with an online assessment that can be conducted remotely. Methods One hundred fifty-eight children and adolescents aged 5-17 years participated in this study, including 79 ASD participants and 79 typically developing (TD) participants. The online assessment consisted of two temporal-order judgment tasks that required repeating the sequence of two pure tones or consonant-vowel (CV) syllabic pairs at varying interstimulus intervals (ISIs). Results Significantly lower accuracy rates were found in ASD than TD participants in the pure tone and the CV conditions with both short and long ISI. In addition, ASD participants (M = 245.97 ms) showed a significantly higher passing threshold than TD participants (M = 178.84 ms) in the CV task. Receiver operating characteristic analysis found that the age × ISI passing threshold composite yielded a sensitivity of 74.7% and a specificity of 50.6% at the cutoff point of -0.307 in differentiating ASD participants from TD participants. Conclusion In sum, children and adolescents with ASD showed impaired temporal processing of both simple and more complex auditory stimuli, and the online assessment seems to be sensitive in differentiating individuals with ASD from those with TD.
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Affiliation(s)
- Agnes S. Chan
- Neuropsychology Laboratory, Department
of Psychology, The Chinese University of Hong
Kong, Hong Kong, China
- Research Centre for Neuropsychological
Well-Being, The Chinese University of Hong
Kong, Hong Kong, China
- Agnes S. Chan, Neuropsychology Lab,
Department of Psychology, The Chinese University of Hong Kong, Shatin, NT, Hong
Kong, China.
| | - Zihan Ding
- Neuropsychology Laboratory, Department
of Psychology, The Chinese University of Hong
Kong, Hong Kong, China
| | - Tsz-lok Lee
- Neuropsychology Laboratory, Department
of Psychology, The Chinese University of Hong
Kong, Hong Kong, China
| | - Sophia L. Sze
- Neuropsychology Laboratory, Department
of Psychology, The Chinese University of Hong
Kong, Hong Kong, China
- Research Centre for Neuropsychological
Well-Being, The Chinese University of Hong
Kong, Hong Kong, China
| | - Mei-Chun Cheung
- Department of Social Work, The Chinese University of Hong
Kong, Hong Kong, China
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21
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Chan AS, Sze SL, Cheung MC. Temporal processing tele-intervention improves language, attention, and memory in children with neurodevelopmental disorders. Digit Health 2023; 9:20552076231203900. [PMID: 37780065 PMCID: PMC10540611 DOI: 10.1177/20552076231203900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/08/2023] [Indexed: 10/03/2023] Open
Abstract
Objective Temporal processing is the brain's ability to process rapid successive stimuli, and children with neurodevelopmental disorders showed temporal processing deficits. Empirical evidence suggests that in-person intervention on temporal processing improves various cognitive functions of these children, and the present study aimed to study the effects of temporal processing tele-intervention (TPT) on the cognitive functions of children with neurodevelopmental disorders. Methods Ninety-five children with neurodevelopmental disorders were recruited and randomly assigned to remotely receive either TPT or conventional language remediation (CLR) in 20 parallel group-based intervention sessions once per week. Their cognitive functions were assessed before and after the intervention. Results The TPT group demonstrated a specific and significant improvement in working memory (p < .001). While there was an overall significant improvement in sustained attention in terms of processing speed after both types of intervention (p = .006), the positive effects of TPT might be more prominent than that of CLR given the significant pre-post difference after receiving TPT (p = .012) but not CLR (p = .21). Regarding rapid naming accuracy which had marginally significant improvement after the intervention (p = .03), the trend of improvement in TPT (p = .05) also seemed more apparent than that of CLR (p = .18). Finally, the TPT group had significant improvement in word knowledge (p < .001), rapid naming speed (p < .001), sustained attention in terms of accuracy (p < .001), and verbal learning and memory (p < .01) to an extent similar to that of the CLR group. Conclusions These findings suggest that TPT can be a potential intervention for improving cognitive functions in children with neurodevelopmental disorders. Clinical trial registration number: NCT05428657 at ClinicalTrials.gov (https://clinicaltrials.gov/).
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Affiliation(s)
- Agnes S Chan
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- Research Centre for Neuropsychological Well-Being, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Sophia L Sze
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- Research Centre for Neuropsychological Well-Being, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Mei-Chun Cheung
- Research Centre for Neuropsychological Well-Being, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- Department of Social Work, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
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22
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Du YC, Li YZ, Qin L, Bi HY. The influence of temporal asynchrony on character-speech integration in Chinese children with and without dyslexia: An ERP study. BRAIN AND LANGUAGE 2022; 233:105175. [PMID: 36029751 DOI: 10.1016/j.bandl.2022.105175] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Dyslexic readers have been reported to show abnormal temporal acuity and multisensory integration deficiency. Here, we investigated the influence of temporal intervals on Chinese character-speech integration in children with and without dyslexia. Visual characters were presented synchronously to the onset of speech sounds (AV0) or before speech sound by 300 ms (AV300). Event-related potentials (ERP) evoked by congruent condition (speech sounds presented with congruent Chinese characters) and by baseline condition (speech sounds presented with Korean characters) were compared. Typically developing (TD) children exhibited congruency effect in AV0 condition, whereas dyslexic children exhibited congruency effect in AV300 condition. Moreover, congruency effect in TD children was due to enhanced neural activation to congruent trials, congruency effect in dyslexic children was contributed by neural suppression for baseline trials. These results suggested that different underlying mechanisms were involved in character-speech integration for typical and dyslexic children.
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Affiliation(s)
- Ying-Chun Du
- CAS Key Laboratory of Behavioral Science, Center for Brain Science and Learning Difficulties, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi-Zhen Li
- CAS Key Laboratory of Behavioral Science, Center for Brain Science and Learning Difficulties, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Li Qin
- CAS Key Laboratory of Behavioral Science, Center for Brain Science and Learning Difficulties, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Yan Bi
- CAS Key Laboratory of Behavioral Science, Center for Brain Science and Learning Difficulties, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China.
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23
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Audiovisual temporal processing in adult patients with first-episode schizophrenia and high-functioning autism. SCHIZOPHRENIA 2022; 8:75. [PMID: 36138029 PMCID: PMC9500036 DOI: 10.1038/s41537-022-00284-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/03/2022] [Indexed: 11/30/2022]
Abstract
Schizophrenia and autism spectrum disorder (ASD) are both neurodevelopmental disorders with altered sensory processing. Widened temporal binding window (TBW) signifies reduced sensitivity to detect stimulus asynchrony, and may be a shared feature in schizophrenia and ASD. Few studies directly compared audiovisual temporal processing ability in the two disorders. We recruited 43 adult patients with first-episode schizophrenia (FES), 35 average intelligent and verbally-fluent adult patients with high-functioning ASD and 48 controls. We employed two unisensory Temporal Order Judgement (TOJ) tasks within visual or auditory modalities, and two audiovisual Simultaneity Judgement (SJ) tasks with flash-beeps and videos of syllable utterance as stimuli. Participants with FES exhibited widened TBW affecting both speech and non-speech processing, which were not attributable to altered unisensory sensory acuity because they had normal visual and auditory TOJ thresholds. However, adults with ASD exhibited intact unisensory and audiovisual temporal processing. Lower non-verbal IQ was correlated with larger TBW width across the three groups. Taking our findings with earlier evidence in chronic samples, widened TBW is associated with schizophrenia regardless illness stage. The altered audiovisual temporal processing in ASD may ameliorate after reaching adulthood.
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24
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Dwyer P, Takarae Y, Zadeh I, Rivera SM, Saron CD. Multisensory integration and interactions across vision, hearing, and somatosensation in autism spectrum development and typical development. Neuropsychologia 2022; 175:108340. [PMID: 36028085 DOI: 10.1016/j.neuropsychologia.2022.108340] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 06/13/2022] [Accepted: 07/22/2022] [Indexed: 10/15/2022]
Abstract
Most prior studies of multisensory integration (MSI) in autism have measured MSI in only a single combination of modalities - typically audiovisual integration. The present study used onset reaction times (RTs) and 125-channel electroencephalography (EEG) to examine different forms of bimodal and trimodal MSI based on combinations of auditory (noise burst), somatosensory (finger tap), and visual (flash) stimuli presented in a spatially-aligned manner using a custom desktop apparatus. A total of 36 autistic and 19 non-autistic adolescents between the ages of 11-14 participated. Significant RT multisensory facilitation relative to summed unisensory RT was observed in both groups, as were significant differences between summed unisensory and multisensory ERPs. Although the present study's statistical approach was not intended to test effect latencies, these interactions may have begun as early as ∼45 ms, constituting "early" (<100 ms) MSI. RT and ERP measurements of MSI appeared independent of one another. Groups did not significantly differ in multisensory RT facilitation, but we found exploratory evidence of group differences in the magnitude of audiovisual interactions in ERPs. Future research should make greater efforts to explore MSI in under-represented populations, especially autistic people with intellectual disabilities and nonspeaking/minimally-verbal autistic people.
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Affiliation(s)
- Patrick Dwyer
- Department of Psychology, UC Davis, USA; Center for Mind and Brain, UC Davis, USA.
| | - Yukari Takarae
- Department of Neurosciences, UC San Diego, USA; Department of Psychology, San Diego State University, USA
| | | | - Susan M Rivera
- Department of Psychology, UC Davis, USA; Center for Mind and Brain, UC Davis, USA; MIND Institute, UC Davis, USA
| | - Clifford D Saron
- Center for Mind and Brain, UC Davis, USA; MIND Institute, UC Davis, USA
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Bowsher-Murray C, Gerson S, von dem Hagen E, Jones CRG. The Components of Interpersonal Synchrony in the Typical Population and in Autism: A Conceptual Analysis. Front Psychol 2022; 13:897015. [PMID: 35734455 PMCID: PMC9208202 DOI: 10.3389/fpsyg.2022.897015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/16/2022] [Indexed: 01/18/2023] Open
Abstract
Interpersonal synchrony – the tendency for social partners to temporally co-ordinate their behaviour when interacting – is a ubiquitous feature of social interactions. Synchronous interactions play a key role in development, and promote social bonding and a range of pro-social behavioural outcomes across the lifespan. The process of achieving and maintaining interpersonal synchrony is highly complex, with inputs required from across perceptual, temporal, motor, and socio-cognitive domains. In this conceptual analysis, we synthesise evidence from across these domains to establish the key components underpinning successful non-verbal interpersonal synchrony, how such processes interact, and factors that may moderate their operation. We also consider emerging evidence that interpersonal synchrony is reduced in autistic populations. We use our account of the components contributing to interpersonal synchrony in the typical population to identify potential points of divergence in interpersonal synchrony in autism. The relationship between interpersonal synchrony and broader aspects of social communication in autism are also considered, together with implications for future research.
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Affiliation(s)
- Claire Bowsher-Murray
- Wales Autism Research Centre, School of Psychology, Cardiff University, Cardiff, United Kingdom
- Cardiff University Centre for Human Developmental Science, School of Psychology, Cardiff University, Cardiff, United Kingdom
- *Correspondence: Claire Bowsher-Murray,
| | - Sarah Gerson
- Cardiff University Centre for Human Developmental Science, School of Psychology, Cardiff University, Cardiff, United Kingdom
| | - Elisabeth von dem Hagen
- Wales Autism Research Centre, School of Psychology, Cardiff University, Cardiff, United Kingdom
- Cardiff University Centre for Human Developmental Science, School of Psychology, Cardiff University, Cardiff, United Kingdom
- Cardiff University Brain Imaging Research Centre, School of Psychology, Cardiff University, Cardiff, United Kingdom
| | - Catherine R. G. Jones
- Wales Autism Research Centre, School of Psychology, Cardiff University, Cardiff, United Kingdom
- Cardiff University Centre for Human Developmental Science, School of Psychology, Cardiff University, Cardiff, United Kingdom
- Catherine R. G. Jones,
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Wu CY, Hwang IS. Visual Occlusion Effects On Bipedal Stance Control In Chinese-Speaking Children With Dyslexia. Neurosci Lett 2022; 782:136678. [PMID: 35550402 DOI: 10.1016/j.neulet.2022.136678] [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: 05/25/2021] [Revised: 04/21/2022] [Accepted: 05/05/2022] [Indexed: 12/09/2022]
Abstract
Visual processing of complex character configurations is especially challenging for Chinese-speaking children with dyslexia (CSCD). The purpose of this study was to compare the effects of visual occlusion on postural control between dyslexic and non-dyslexic Chinese-speaking children by examining their visual-perceptual capacity and movement coordination with scale measures. Sixteen dyslexic children (10 males and, 6 females, 9.46 ± 1.26 yrs) and sixteen non-dyslexic children (10 males and 6 females, 9.91 ± 1.18 yrs) were recruited from the campus in Taiwan. Motor and visual perceptual performance were assessed with the Movement Assessment Battery for Children, 2nd Edition (MABC-2) and the Test of Visual-Perceptual Skills, 4th Edition (TVPS-4). Root mean square (RMS) and sample entropy (SampEn) of center of pressure (COP) were characterized during a bilateral upright stance with eyes open (EO) and eyes closed (EC). The results showed significant group differences in six of the seven TVPS-4 subscales (P < .001-.017) and one category of the MABC-2 (P = .006). In the EO condition, the children with dyslexia showed a greater RMS of COP specifically in the anterior-posterior (AP) direction than did the non-dyslexic children (P = .029). However, SampEn of COP in the two directions were not group dependent (P > .05). In the EC condition, RMS and SampEn of COP did not vary with group (P > .05). RMS of COP in the AP direction was negatively correlated with the sub-score of visual figure-ground in the TVPS-4 (r = - .381, P = .031). In summary, postural control of Chinese-speaking children with dyslexia is more affected with eyes open than with eyes closed, and the effect is related to visual disturbance of the foreground and background.
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Affiliation(s)
- Ching-Yi Wu
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan City, Taiwan; Physical Therapy Room, Jianan Psychiatric Center, Tainan City, Taiwan
| | - Ing-Shiou Hwang
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan City, Taiwan; Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan City, Taiwan.
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Kunchulia M, Parkosadze K, Lomidze N, Tatishvili T, Thomaschke R. Children with developmental dyslexia show an increased variable foreperiod effect. JOURNAL OF COGNITIVE PSYCHOLOGY 2022. [DOI: 10.1080/20445911.2022.2060989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Marina Kunchulia
- Institute of Cognitive Neurosciences, Free University of Tbilisi, Tbilisi, Georgia
- Laboratory of Vision Physiology, Ivane Beritashvili Centre of Experimental Biomedicine, Tbilisi, Georgia
| | - Khatuna Parkosadze
- Institute of Cognitive Neurosciences, Free University of Tbilisi, Tbilisi, Georgia
- Laboratory of Vision Physiology, Ivane Beritashvili Centre of Experimental Biomedicine, Tbilisi, Georgia
| | - Nino Lomidze
- Department of Psychology, McLain Association for Children Georgia, Tbilisi, Georgia
| | - Tamari Tatishvili
- Faculty of Psychology and Educational Sciences, Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
| | - Roland Thomaschke
- Department of Psychology, Time, Interaction, and Self-determination Group, at the Cognition, Action and Sustainability Unit, University of Freiburg, Freiburg, Germany
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28
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Chan AS, Ding Z, Lee TL, Sze SL, Yang NS. Temporal processing deficit in children with attention-deficit/hyperactivity disorder: An online assessment. Digit Health 2022; 8:20552076221120325. [PMID: 36060612 PMCID: PMC9434659 DOI: 10.1177/20552076221120325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/29/2022] [Indexed: 11/25/2022] Open
Abstract
Objective Temporal processing deficits were found among children with
attention-deficit/hyperactivity disorder (ADHD). The present study aims to
develop an online temporal processing assessment that can be conducted
remotely, and the sensitivity of the test was assessed on a group of
children with ADHD. Methods A total of 188 children were recruited, including 94 typically developing
(TD) children, and 94 children with ADHD. The online assessment consists of
two temporal-order judgment (TOJ) tasks. One task used tone pairs presented
with two interstimulus intervals (ISIs) (305ms and 40ms). Another task used
pairs of consonant-vowel (CV) syllables with 20 varying ISI levels.
Participants were asked to determine the sequence of the sound pairs. Results The results showed that ADHD children were less accurate (ISI 305ms:
M = 83.90%; ISI 40ms: M = 66.28%) than TD children (ISI
305ms: M = 89.36%; ISI 40ms: M = 77.16%)
in the tone task. Similarly, ADHD children showed a higher ISI passing
threshold (M = 283.64ms) than TD children
(M = 199.76ms) and higher accuracy in the CV task.
Hierarchical binary logistic regression suggested a model to predict ADHD
children using accuracy in ISI 40ms in the tone task and ISI passing
threshold in the CV task. Receiver operating characteristic (ROC) analysis
yielded a sensitivity of 75.58% and a specificity of 51.11%. Conclusion ADHD children showed temporal processing deficits of both tones and CVs. The
online assessment may be a valid tool for differentiating ADHD children from
TD children.
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Affiliation(s)
- Agnes S Chan
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
- Research Centre for Neuropsychological Well-Being, The Chinese University of Hong Kong, Hong Kong, China
| | - Zihan Ding
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
| | - Tsz-lok Lee
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
| | - Sophia L Sze
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
- Research Centre for Neuropsychological Well-Being, The Chinese University of Hong Kong, Hong Kong, China
| | - Natalie S Yang
- Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong, China
- Research Centre for Neuropsychological Well-Being, The Chinese University of Hong Kong, Hong Kong, China
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Shafer RL, Wang Z, Bartolotti J, Mosconi MW. Visual and somatosensory feedback mechanisms of precision manual motor control in autism spectrum disorder. J Neurodev Disord 2021; 13:32. [PMID: 34496766 PMCID: PMC8427856 DOI: 10.1186/s11689-021-09381-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/11/2021] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Individuals with autism spectrum disorder (ASD) show deficits processing sensory feedback to reactively adjust ongoing motor behaviors. Atypical reliance on visual and somatosensory feedback each have been reported during motor behaviors in ASD suggesting that impairments are not specific to one sensory domain but may instead reflect a deficit in multisensory processing, resulting in reliance on unimodal feedback. The present study tested this hypothesis by examining motor behavior across different visual and somatosensory feedback conditions during a visually guided precision grip force test. METHODS Participants with ASD (N = 43) and age-matched typically developing (TD) controls (N = 23), ages 10-20 years, completed a test of precision gripping. They pressed on force transducers with their index finger and thumb while receiving visual feedback on a computer screen in the form of a horizontal bar that moved upwards with increased force. They were instructed to press so that the bar reached the level of a static target bar and then to hold their grip force as steadily as possible. Visual feedback was manipulated by changing the gain of the force bar. Somatosensory feedback was manipulated by applying 80 Hz tendon vibration at the wrist to disrupt the somatosensory percept. Force variability (standard deviation) and irregularity (sample entropy) were examined using multilevel linear models. RESULTS While TD controls showed increased force variability with the tendon vibration on compared to off, individuals with ASD showed similar levels of force variability across tendon vibration conditions. Individuals with ASD showed stronger age-associated reductions in force variability relative to controls across conditions. The ASD group also showed greater age-associated increases in force irregularity relative to controls, especially at higher gain levels and when the tendon vibrator was turned on. CONCLUSIONS Our findings that disrupting somatosensory feedback did not contribute to changes in force variability or regularity among individuals with ASD suggests a reduced ability to integrate somatosensory feedback information to guide ongoing precision manual motor behavior. We also document stronger age-associated gains in force control in ASD relative to TD suggesting delayed development of multisensory feedback control of motor behavior.
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Affiliation(s)
- Robin L Shafer
- Life Span Institute, University of Kansas, Lawrence, KS, USA
- Kansas Center for Autism Research and Training (K-CART), University of Kansas, Lawrence, KS, USA
| | - Zheng Wang
- Department of Occupational Therapy, University of Florida, Gainesville, FL, USA
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL, USA
| | - James Bartolotti
- Life Span Institute, University of Kansas, Lawrence, KS, USA
- Kansas Center for Autism Research and Training (K-CART), University of Kansas, Lawrence, KS, USA
| | - Matthew W Mosconi
- Life Span Institute, University of Kansas, Lawrence, KS, USA.
- Kansas Center for Autism Research and Training (K-CART), University of Kansas, Lawrence, KS, USA.
- Clinical Child Psychology Program, University of Kansas, Lawrence, KS, USA.
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Gavril L, Roșan A, Szamosközi Ș. The role of visual-spatial attention in reading development: a meta-analysis. Cogn Neuropsychol 2021; 38:387-407. [PMID: 35274592 DOI: 10.1080/02643294.2022.2043839] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The association between visual attention and reading development has been investigated as a possible core causal deficit in dyslexia, in addition to phonological awareness. This study aims to provide a meta-analytic review of the research on attentional processes and their relation to reading development, to examine the possible influence on it of orthographic depth, age, and attentional tasks (interpreted as serial or parallel processing indices). We included studies with participants up to 18 years of age that have considered the visual spatial attention orienting that sustains the serial visual analysis involved in the phonological pathway of decoding, and the visual attention span that supports the multielement parallel processing that is thought to influence lexical decoding. The results confirm a strong association between visual attention and reading development; we evaluate the evidence and discuss the possibility that visual attention processes play a causal role in determining individual differences in reading acquisition.
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The Neurological Basis of Developmental Dyslexia and Related Disorders: A Reappraisal of the Temporal Hypothesis, Twenty Years on. Brain Sci 2021; 11:brainsci11060708. [PMID: 34071786 PMCID: PMC8229928 DOI: 10.3390/brainsci11060708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/13/2021] [Accepted: 05/20/2021] [Indexed: 01/10/2023] Open
Abstract
In a now-classic article published a couple of decades ago (Brain, 2000; 123: 2373-2399), I proposed an "extended temporal processing deficit hypothesis of dyslexia", suggesting that a deficit in temporal processing could explain not only language-related peculiarities usually noticed in dyslexic children, but also a wider range of symptoms related to impaired processing of time in general. In the present review paper, I will revisit this "historical" hypothesis both in the light of a new clinical perspective, including the central yet poorly explained notion of comorbidity, and also taking a new look at the most recent experimental work, mainly focusing on brain imaging data. First, consistent with daily clinical practice, I propose to distinguish three groups of children who fail to learn to read, of fairly equal occurrence, who share the same initial presentation (difficulty in mastering the rules of grapheme-phoneme correspondence) but with differing associated signs and/or comorbid conditions (language disorders in the first group, attentional deficits in the second one, and motor coordination problems in the last one), thus suggesting, at least in part, potentially different triggering mechanisms. It is then suggested, in the light of brain imaging information available to date, that the three main clinical presentations/associations of cognitive impairments that compromise reading skills acquisition correspond to three distinct patterns of miswiring or "disconnectivity" in specific brain networks which have in common their involvement in the process of learning and their heavy reliance on temporal features of information processing. With reference to the classic temporal processing deficit of dyslexia and to recent evidence of an inability of the dyslexic brain to achieve adequate coupling of oscillatory brain activity to the temporal features of external events, a general model is proposed according to which a common mechanism of temporal uncoupling between various disconnected-and/or mis-wired-processors may account for distinct forms of specific learning disorders, with reading impairment being a more or less constant feature. Finally, the potential therapeutic implications of such a view are considered, with special emphasis on methods seeking to enhance cross-modal connectivity between separate brain systems, including those using rhythmic and musical training in dyslexic patients.
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Visual Influences on Auditory Behavioral, Neural, and Perceptual Processes: A Review. J Assoc Res Otolaryngol 2021; 22:365-386. [PMID: 34014416 PMCID: PMC8329114 DOI: 10.1007/s10162-021-00789-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 02/07/2021] [Indexed: 01/03/2023] Open
Abstract
In a naturalistic environment, auditory cues are often accompanied by information from other senses, which can be redundant with or complementary to the auditory information. Although the multisensory interactions derived from this combination of information and that shape auditory function are seen across all sensory modalities, our greatest body of knowledge to date centers on how vision influences audition. In this review, we attempt to capture the state of our understanding at this point in time regarding this topic. Following a general introduction, the review is divided into 5 sections. In the first section, we review the psychophysical evidence in humans regarding vision's influence in audition, making the distinction between vision's ability to enhance versus alter auditory performance and perception. Three examples are then described that serve to highlight vision's ability to modulate auditory processes: spatial ventriloquism, cross-modal dynamic capture, and the McGurk effect. The final part of this section discusses models that have been built based on available psychophysical data and that seek to provide greater mechanistic insights into how vision can impact audition. The second section reviews the extant neuroimaging and far-field imaging work on this topic, with a strong emphasis on the roles of feedforward and feedback processes, on imaging insights into the causal nature of audiovisual interactions, and on the limitations of current imaging-based approaches. These limitations point to a greater need for machine-learning-based decoding approaches toward understanding how auditory representations are shaped by vision. The third section reviews the wealth of neuroanatomical and neurophysiological data from animal models that highlights audiovisual interactions at the neuronal and circuit level in both subcortical and cortical structures. It also speaks to the functional significance of audiovisual interactions for two critically important facets of auditory perception-scene analysis and communication. The fourth section presents current evidence for alterations in audiovisual processes in three clinical conditions: autism, schizophrenia, and sensorineural hearing loss. These changes in audiovisual interactions are postulated to have cascading effects on higher-order domains of dysfunction in these conditions. The final section highlights ongoing work seeking to leverage our knowledge of audiovisual interactions to develop better remediation approaches to these sensory-based disorders, founded in concepts of perceptual plasticity in which vision has been shown to have the capacity to facilitate auditory learning.
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Morris PO, Hope E, Foulsham T, Mills JP. Dance, rhythm, and autism spectrum disorder: An explorative study. ARTS IN PSYCHOTHERAPY 2021. [DOI: 10.1016/j.aip.2020.101755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Aberrant auditory system and its developmental implications for autism. SCIENCE CHINA-LIFE SCIENCES 2021; 64:861-878. [DOI: 10.1007/s11427-020-1863-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/06/2020] [Indexed: 12/26/2022]
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