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Zhang D, Zhang R, Zhou L, Zhou K, Chang C. The brain network underlying attentional blink predicts symptoms of attention deficit hyperactivity disorder in children. Cereb Cortex 2023; 33:2761-2773. [PMID: 35699600 DOI: 10.1093/cercor/bhac240] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/20/2022] [Accepted: 05/21/2022] [Indexed: 12/30/2022] Open
Abstract
Attention deficit hyperactivity disorder (ADHD) is a chronic neuropsychiatric disease that can markedly impair educational, social, and occupational function throughout life. Behavioral deficits may provide clues to the underlying neurological impairments. Children with ADHD exhibit a larger attentional blink (AB) deficit in rapid serial visual presentation (RSVP) tasks than typically developing children, so we examined whether brain connectivity in the neural network associated with AB can predict ADHD symptoms and thus serve as potential biomarkers of the underlying neuropathology. We first employed a connectome-based predictive model analysis of adult resting-state functional magnetic resonance imaging data to identify a distributed brain network for AB. The summed functional connectivity (FC) strength within the AB network reliably predicted individual differences in AB magnitude measured by a classical dual-target RSVP task. Furthermore, the summed FC strength within the AB network predicted individual differences in ADHD Rating Scale scores from an independent dataset of pediatric patients. Our findings suggest that the individual AB network could serve as an applicable neuroimaging-based biomarker of AB deficit and ADHD symptoms.
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Affiliation(s)
- Dai Zhang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, No. 1066, Xueyuan Street, Nanshan District, Shenzhen 518073, China
| | - Ruotong Zhang
- Beijing Key Laboratory of Applied Experimental Psychology, School of Psychology, Beijing Normal University, No. 19, Xinjiekouwai Street, Haidian District, Beijing 100875, China
| | - Liqin Zhou
- Beijing Key Laboratory of Applied Experimental Psychology, School of Psychology, Beijing Normal University, No. 19, Xinjiekouwai Street, Haidian District, Beijing 100875, China
| | - Ke Zhou
- Beijing Key Laboratory of Applied Experimental Psychology, School of Psychology, Beijing Normal University, No. 19, Xinjiekouwai Street, Haidian District, Beijing 100875, China
| | - Chunqi Chang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, No. 1066, Xueyuan Street, Nanshan District, Shenzhen 518073, China
- Peng Cheng Laboratory, No. 2, Xingke Street, Nanshan District, Shenzhen 518055, China
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Developmental trajectory of time perception from childhood to adolescence. CURRENT PSYCHOLOGY 2022. [DOI: 10.1007/s12144-022-03526-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Marx I, Cortese S, Koelch MG, Hacker T. Meta-analysis: Altered Perceptual Timing Abilities in Attention-Deficit/Hyperactivity Disorder. J Am Acad Child Adolesc Psychiatry 2022; 61:866-880. [PMID: 34923055 DOI: 10.1016/j.jaac.2021.12.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 11/19/2021] [Accepted: 12/09/2021] [Indexed: 01/07/2023]
Abstract
OBJECTIVE We meta-analyzed studies comparing perceptual timing abilities in the range of milliseconds to several seconds in persons with attention-deficit/hyperactivity disorder (ADHD) and neurotypical participants, using the well-established time discrimination, time estimation, time production, and time reproduction paradigms. METHOD We searched PubMed, OVID databases, and Web of Knowledge through September 17, 2020. From 2,266 records, 55 studies were retained and meta-analyzed with random effects models. We conducted meta-regression analyses to explore moderating effects of task parameters and neuropsychological measures of working memory, attention, and inhibition on timing performance. RESULTS Compared with persons without ADHD, those with ADHD had significantly more severe difficulties in discriminating stimuli of very brief durations, especially in the sub-second range. They also had more variability in estimating the duration of stimuli lasting several seconds. Moreover, they showed deficits in time estimation and time production accuracy, indicative of an accelerated internal clock. Additional deficits in persons with ADHD were also found in the time reproduction paradigm, involving attentional (slower counting at short time intervals due to distraction) and motivational (faster counting at long time intervals due to increased delay aversion) functions. CONCLUSION There is meta-analytic evidence of a broad range of timing deficits in persons with ADHD. Results have implications for advancing our knowledge in the field (eg, for refinement of recent timing models in ADHD) and clinical practice (eg, testing timing functions to characterize the clinical phenotype of the patient and implementation of interventions to improve timing abilities).
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Affiliation(s)
- Ivo Marx
- Rostock University Medical Center, Rostock, Germany.
| | - Samuele Cortese
- Center for Innovation in Mental Health, Academic Unit of Psychology, University of Southampton, United Kingdom; New York University Grossman School of Medicine, New York
| | | | - Thomas Hacker
- Rostock University Medical Center, Rostock, Germany; Helios Hanseklinikum Stralsund, Stralsund, Germany
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Cervantes-Henríquez ML, Acosta-López JE, Martinez AF, Arcos-Burgos M, Puentes-Rozo PJ, Vélez JI. Machine Learning Prediction of ADHD Severity: Association and Linkage to ADGRL3, DRD4, and SNAP25. J Atten Disord 2022; 26:587-605. [PMID: 34009035 DOI: 10.1177/10870547211015426] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To investigate whether single nucleotide polymorphisms (SNPs) in the ADGRL3, DRD4, and SNAP25 genes are associated with and predict ADHD severity in families from a Caribbean community. METHOD ADHD severity was derived using latent class cluster analysis of DSM-IV symptomatology. Family-based association tests were conducted to detect associations between SNPs and ADHD severity latent phenotypes. Machine learning algorithms were used to build predictive models of ADHD severity based on demographic and genetic data. RESULTS Individuals with ADHD exhibited two seemingly independent latent class severity configurations. SNPs harbored in DRD4, SNAP25, and ADGRL3 showed evidence of linkage and association to symptoms severity and a potential pleiotropic effect on distinct domains of ADHD severity. Predictive models discriminate severe from non-severe ADHD in specific symptom domains. CONCLUSION This study supports the role of DRD4, SNAP25, and ADGRL3 genes in outlining ADHD severity, and a new prediction framework with potential clinical use.
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Affiliation(s)
| | | | | | | | - Pedro J Puentes-Rozo
- Universidad Simón Bolívar, Barranquilla, Colombia
- Universidad del Atlántico, Barranquilla, Colombia
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Mosquera-Heredia MI, Morales LC, Vidal OM, Barceló E, Silvera-Redondo C, Vélez JI, Garavito-Galofre P. Exosomes: Potential Disease Biomarkers and New Therapeutic Targets. Biomedicines 2021; 9:1061. [PMID: 34440265 PMCID: PMC8393483 DOI: 10.3390/biomedicines9081061] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/10/2021] [Accepted: 08/11/2021] [Indexed: 02/07/2023] Open
Abstract
Exosomes are extracellular vesicles released by cells, both constitutively and after cell activation, and are present in different types of biological fluid. Exosomes are involved in the pathogenesis of diseases, such as cancer, neurodegenerative diseases, pregnancy disorders and cardiovascular diseases, and have emerged as potential non-invasive biomarkers for the detection, prognosis and therapeutics of a myriad of diseases. In this review, we describe recent advances related to the regulatory mechanisms of exosome biogenesis, release and molecular composition, as well as their role in health and disease, and their potential use as disease biomarkers and therapeutic targets. In addition, the advantages and disadvantages of their main isolation methods, characterization and cargo analysis, as well as the experimental methods used for exosome-mediated drug delivery, are discussed. Finally, we present potential perspectives for the use of exosomes in future clinical practice.
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Affiliation(s)
- Maria I. Mosquera-Heredia
- Department of Medicine, Universidad del Norte, Barranquilla 081007, Colombia; (L.C.M.); (O.M.V.); (C.S.-R.)
| | - Luis C. Morales
- Department of Medicine, Universidad del Norte, Barranquilla 081007, Colombia; (L.C.M.); (O.M.V.); (C.S.-R.)
| | - Oscar M. Vidal
- Department of Medicine, Universidad del Norte, Barranquilla 081007, Colombia; (L.C.M.); (O.M.V.); (C.S.-R.)
| | - Ernesto Barceló
- Instituto Colombiano de Neuropedagogía, Barranquilla 080020, Colombia;
| | - Carlos Silvera-Redondo
- Department of Medicine, Universidad del Norte, Barranquilla 081007, Colombia; (L.C.M.); (O.M.V.); (C.S.-R.)
| | - Jorge I. Vélez
- Department of Industrial Engineering, Universidad del Norte, Barranquilla 081007, Colombia;
| | - Pilar Garavito-Galofre
- Department of Medicine, Universidad del Norte, Barranquilla 081007, Colombia; (L.C.M.); (O.M.V.); (C.S.-R.)
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Vélez JI. Machine Learning based Psychology: Advocating for A Data-Driven Approach. Int J Psychol Res (Medellin) 2021; 14:6-11. [PMID: 34306575 PMCID: PMC8297577 DOI: 10.21500/20112084.5365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Jorge I Vélez
- Universidad del Norte, Barranquilla, Colombia. Universidad del Norte Universidad del Norte Barranquilla Colombia
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Cervantes-Henriquez ML, Acosta-López JE, Ahmad M, Sánchez-Rojas M, Jiménez-Figueroa G, Pineda-Alhucema W, Martinez-Banfi ML, Noguera-Machacón LM, Mejía-Segura E, De La Hoz M, Arcos-Holzinger M, Pineda DA, Puentes-Rozo PJ, Arcos-Burgos M, Vélez JI. ADGRL3, FGF1 and DRD4: Linkage and Association with Working Memory and Perceptual Organization Candidate Endophenotypes in ADHD. Brain Sci 2021; 11:854. [PMID: 34206913 PMCID: PMC8301925 DOI: 10.3390/brainsci11070854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022] Open
Abstract
Attention deficit hyperactivity disorder (ADHD) is a highly heritable neurobehavioral disorder that affects children worldwide, with detrimental long-term consequences in affected individuals. ADHD-affected patients display visual-motor and visuospatial abilities and skills that depart from those exhibited by non-affected individuals and struggle with perceptual organization, which might partially explain impulsive responses. Endophenotypes (quantifiable or dimensional constructs that are closely related to the root cause of the disease) might provide a more powerful and objective framework for dissecting the underlying neurobiology of ADHD than that of categories offered by the syndromic classification. In here, we explore the potential presence of the linkage and association of single-nucleotide polymorphisms (SNPs), harbored in genes implicated in the etiology of ADHD (ADGRL3, DRD4, and FGF1), with cognitive endophenotypes related to working memory and perceptual organization in 113 nuclear families. These families were ascertained from a geographical area of the Caribbean coast, in the north of Colombia, where the community is characterized by its ethnic diversity and differential gene pool. We found a significant association and linkage of markers ADGRL3-rs1565902, DRD4-rs916457 and FGF1-rs2282794 to neuropsychological tasks outlining working memory and perceptual organization such as performance in the digits forward and backward, arithmetic, similarities, the completion of figures and the assembly of objects. Our results provide strong support to understand ADHD as a combination of working memory and perceptual organization deficits and highlight the importance of the genetic background shaping the neurobiology, clinical complexity, and physiopathology of ADHD. Further, this study supplements new information regarding an ethnically diverse community with a vast African American contribution, where ADHD studies are scarce.
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Affiliation(s)
- Martha L. Cervantes-Henriquez
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
- Universidad del Norte, Barranquilla 081007, Colombia
| | - Johan E. Acosta-López
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Mostapha Ahmad
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Manuel Sánchez-Rojas
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Giomar Jiménez-Figueroa
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Wilmar Pineda-Alhucema
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Martha L. Martinez-Banfi
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Luz M. Noguera-Machacón
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Elsy Mejía-Segura
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Moisés De La Hoz
- Facultad de Ciencias Jurídicas y Sociales, Universidad Simón Bolívar, Barranquilla 080005, Colombia; (J.E.A.-L.); (M.A.); (M.S.-R.); (G.J.-F.); (W.P.-A.); (M.L.M.-B.); (L.M.N.-M.); (E.M.-S.); (M.D.L.H.)
| | - Mauricio Arcos-Holzinger
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Instituto de Investigaciones Mxdicas, Facultad de Medicina, Universidad de Antioquia, Medellin 050010, Colombia; (M.A.-H.); (M.A.-B.)
| | - David A. Pineda
- Grupo de Neuropsicología y Conducta, Universidad de San Buenaventura, Medellín 050010, Colombia;
| | - Pedro J. Puentes-Rozo
- Grupo de Neurociencias del Caribe, Universidad del Atlántico, Barranquilla 081001, Colombia;
| | - Mauricio Arcos-Burgos
- Grupo de Investigación en Psiquiatría (GIPSI), Departamento de Psiquiatría, Instituto de Investigaciones Mxdicas, Facultad de Medicina, Universidad de Antioquia, Medellin 050010, Colombia; (M.A.-H.); (M.A.-B.)
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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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