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Abecasis D, Ogden R, Winkler AC, Gandra M, Khallahi B, Diallo M, Cabrera-Castro R, Weiller Y, Erzini K, Afonso P, Assis J. Multidisciplinary estimates of connectivity and population structure suggest the use of multiple units for the conservation and management of meagre, Argyrosomus regius. Sci Rep 2024; 14:873. [PMID: 38195638 PMCID: PMC10776566 DOI: 10.1038/s41598-023-50869-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 12/27/2023] [Indexed: 01/11/2024] Open
Abstract
Information on population structure and connectivity of targeted species is key for proper implementation of spatial conservation measures. We used a combination of genomics, biophysical modelling, and biotelemetry to infer the population structure and connectivity of Atlantic meagre, an important fisheries resource throughout its distribution. Genetic samples from previously identified Atlantic spawning locations (Gironde, Tejo, Guadalquivir, Banc d'Arguin) and two additional regions (Algarve and Senegal) were analysed using genome-wide SNP-genotyping and mitochondrial DNA analyses. Biophysical models were conducted to investigate larval dispersal and connectivity from the known Atlantic spawning locations. Additionally, thirteen fish were double-tagged with biotelemetry transmitters off the Algarve (Portugal) to assess movement patterns and connectivity of adult individuals. This multidisciplinary approach provided a robust overview of meagre population structure and connectivity in the Atlantic. Nuclear SNP-genotyping showed a clear differentiation between the European and African populations, with significant isolation of the few known Atlantic spawning sites. The limited level of connectivity between these subpopulations is potentially driven by adults, capable of wide-ranging movements and connecting sites 500 km apart, as evidenced by tagging studies, whilst larval dispersal inferred by modelling is much more limited (average of 52 km; 95% of connectivity events up to 174 km). Our results show sufficient evidence of population structure, particularly between Africa and Europe but also within Europe, for the meagre to be managed as separate stocks. Additionally, considering the low degree of larvae connectivity, the implementation of marine protected areas in key spawning sites could be crucial towards species sustainability.
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Affiliation(s)
- D Abecasis
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139, Faro, Portugal.
| | - R Ogden
- Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK
| | - A C Winkler
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139, Faro, Portugal
| | - M Gandra
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139, Faro, Portugal
| | - B Khallahi
- Institut Mauritanien de Recherches Océanographiques et des Pêches (IMROP), BP 22, Nouadhibou, Cansado, Mauritania
| | - M Diallo
- Conservation and Research of West African Aquatic Mammals (COREWAM), Dakar, Senegal
| | - R Cabrera-Castro
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz. Campus de Excelencia Internacional del Mar (CEIMAR), Avda. República Saharaui, s/n, Puerto Real, 11510, Cádiz, Spain
- Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEIMAR), Avda. República Saharaui, S/N, Puerto Real, 11510, Cádiz, Spain
| | - Y Weiller
- Parc naturel marin de l'estuaire de La Gironde et de la mer des Pertuis, OFB, 17320, Marennes, France
| | - K Erzini
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139, Faro, Portugal
| | - P Afonso
- Ocean Sciences Institute (Okeanos), University of the Azores, 9901-862, Horta, Portugal
- Institute of Marine Research (IMAR), 9901-862, Horta, Portugal
| | - J Assis
- CCMAR, Centre of Marine Sciences, University of Algarve, 8005-139, Faro, Portugal
- Faculty of Bioscience and Aquaculture, Nord Universitet, Bodø, Norway
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Poker G, Oren N, Bezalel V, Abecasis D, Hendler T, Fried I, Wagner AD, Shapira-Lichter I. Neural evidence for advantaged representation of first items in memory. Neuroimage 2023; 277:120239. [PMID: 37348626 DOI: 10.1016/j.neuroimage.2023.120239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/06/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023] Open
Abstract
Visual areas activated during perception can retain specific information held in memory without the presence of physical stimuli via distributed activity patterns. Neuroimaging studies have shown that the delay-period representation of information in visual areas is modulated by factors such as memory load and task demands, raising the possibility of serial position as another potential modulator. Specifically, enhanced representation of first items during the post-encoding delay period may serve as a mechanism underlying the well-established but not well-understood primacy effect - the mnemonic advantage of first items. To test this hypothesis, 13 males and 16 females performed a human fMRI task, wherein each trial consisted of the sequential encoding of two stimuli (a famous face and landscape, order counterbalanced), followed by a distracting task, a delay period, and then a cued recall of one of the items. Participants exhibited the expected behavioral primacy effect, manifested as faster recall of the first items. In order to elucidate the still debated neural underpinnings of this effect, using multivariate decoding, a classifier was trained on data collected during encoding to differentiate stimulus categories (i.e., faces vs. landscapes) and tested on data collected during the post-encoding period. Greater reactivation of first versus second items was observed in the ventral occipito-temporal cortex during the entire post-encoding period but not during encoding. Moreover, trial-level analyses revealed that the degree of first-item neural advantage during the post-encoding delay predicted the behavioral primacy effect. These findings highlight the role of item reinstatement in ventral occipito-temporal cortex in the primacy effect and are discussed in the context of the uniqueness of the very first item and event boundaries, illuminating putative neural mechanisms underlying the effect.
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Affiliation(s)
- Gilad Poker
- Functional MRI Center, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
| | - Noga Oren
- Functional MRI Center, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
| | - Vered Bezalel
- Sagol Brain Institute, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Donna Abecasis
- Functional MRI Center, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
| | - Talma Hendler
- Sagol Brain Institute, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Itzhak Fried
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Department of Neurosurgery, University of California, Los Angeles, CA, USA
| | - Anthony D Wagner
- Department of Psychology and Wu Tsai Neurosciences Institute, Stanford University, Stanford, CA, USA
| | - Irit Shapira-Lichter
- Functional MRI Center, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
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3
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Oren N, Abecasis D, Inbar E, Glik A, Steiner I, Shapira-Lichter I. A new perspective on the role of the frontoparietal regions in Stroop-like conflicts. Hum Brain Mapp 2023. [PMID: 37226979 DOI: 10.1002/hbm.26347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 12/28/2022] [Accepted: 04/20/2023] [Indexed: 05/26/2023] Open
Abstract
Humans are goal-directed; however, goal-unrelated information still affects us, but how? The Stroop task is often used to answer this question, relying on conflict (incongruency) between attributes, one targeted by the task and another irrelevant to the task. The frontal regions of the brain are known to play a crucial role in processing such conflict, as they show increased activity when we encounter incongruent stimuli. Notably, the Stroop stimuli also consist of conceptual dimensions, such as semantic or emotional content, that are independent of the attributes that define the conflict. Since the non-targeted attribute usually refers to the same conceptual dimension as the targeted-attribute, it is relevant to the task at hand. For example, when naming the emotion of an emotional face superimposed by an emotional word, both the targeted-attribute and the non-targeted attribute refer to the conceptual dimension "emotion". We designed an fMRI paradigm to investigate how conflicts between different conceptual dimensions impact us. Even though the conflict was task-irrelevant, incongruent stimuli resulted in longer reaction times, indicating a behavioral congruency effect. When examining the neural mechanisms that underlie this effect, we found that the frontal regions exhibited repetition suppression, while the bilateral intraparietal sulcus (IPS) showed a congruency effect linked to the behavioral effect. Taken together, these findings suggest that individuals are unable to completely ignore task-irrelevant information, and that the IPS plays a crucial role in processing such information.
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Affiliation(s)
- Noga Oren
- Functional MRI Center, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
| | - Donna Abecasis
- Functional MRI Center, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
| | - Edna Inbar
- Imaging Department, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amir Glik
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Cognitive Neurology Clinic, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
- Department of Neurology, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
| | - Israel Steiner
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Neurology, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
| | - Irit Shapira-Lichter
- Functional MRI Center, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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Kraft S, Gandra M, Lennox RJ, Mourier J, Winkler AC, Abecasis D. Residency and space use estimation methods based on passive acoustic telemetry data. Mov Ecol 2023; 11:12. [PMID: 36859381 PMCID: PMC9976422 DOI: 10.1186/s40462-022-00364-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 12/26/2022] [Indexed: 06/18/2023]
Abstract
Acoustic telemetry has helped overcome many of the challenges faced when studying the movement ecology of aquatic species, allowing to obtain unprecedented amounts of data. This has made it into one of the most widely used methods nowadays. Many ways to analyse acoustic telemetry data have been made available and deciding on how to analyse the data requires considering the type of research objectives, relevant properties of the data (e.g., resolution, study design, equipment), habits of the study species, researcher experience, among others. To ease this decision process, here we showcase (1) some of the methods used to estimate pseudo-positions and positions from raw acoustic telemetry data, (2) methods to estimate residency and (3) methods to estimate two-dimensional home and occurrence range using geometric or hull-based methods and density-distribution methods, a network-based approach, and three-dimensional methods. We provide examples of some of these were tested using a sample of real data. With this we intend to provide the necessary background for the selection of the method(s) that better fit specific research objectives when using acoustic telemetry.
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Affiliation(s)
- S Kraft
- Center of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal.
| | - M Gandra
- Center of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
| | - R J Lennox
- Laboratory for Freshwater Ecology and Inland Fisheries at NORCE Norwegian Research Center, Bergen, Norway
- Norwegian Institute for Nature Research (NINA), Trondheim, Norway
| | - J Mourier
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - A C Winkler
- Center of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
| | - D Abecasis
- Center of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
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5
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Daitch V, Yelin D, Awwad M, Guaraldi G, Milić J, Mussini C, Falcone M, Tiseo G, Carrozzi L, Pistelli F, Nehme M, Guessous I, Kaiser L, Vetter P, Bordas-Martínez J, Durà-Miralles X, Peleato-Catalan D, Gudiol C, Shapira-Lichter I, Abecasis D, Leibovici L, Yahav D, Margalit I. Characteristics of long-COVID among older adults: a cross-sectional study. Int J Infect Dis 2022; 125:287-293. [PMID: 36191820 DOI: 10.1016/j.ijid.2022.09.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/08/2022] [Accepted: 09/27/2022] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES To describe long-COVID symptoms among older adults and to assess the risk factors for two common long-COVID symptoms: fatigue and dyspnea. METHODS This is a multicenter, prospective cohort study conducted in Israel, Switzerland, Spain, and Italy. Individuals were included at least 30 days after their COVID-19 diagnosis. We compared long-COVID symptoms between elderly (aged >65 years) and younger individuals (aged 18-65 years) and conducted univariate and multivariable analyses for the predictors of long-COVID fatigue and dyspnea. RESULTS A total of 2333 individuals were evaluated at an average of 5 months (146 days [95% confidence interval 142-150]) after COVID-19 onset. The mean age was 51 years, and 20.5% were aged >65 years. Older adults were more likely to be symptomatic, with the most common symptoms being fatigue (38%) and dyspnea (30%); they were more likely to complain of cough and arthralgia and have abnormal chest imaging and pulmonary function tests. Independent risk factors for long-COVID fatigue and dyspnea included female gender, obesity, and closer proximity to COVID-19 diagnosis; older age was not an independent predictor. CONCLUSION Older individuals with long-COVID have different persisting symptoms, with more pronounced pulmonary impairment. Women and individuals with obesity are at risk. Further research is warranted to investigate the natural history of long-COVID among the elderly population and to assess possible interventions aimed at promoting rehabilitation and well-being.
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Affiliation(s)
- Vered Daitch
- COVID recovery clinic, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel.
| | - Dana Yelin
- COVID recovery clinic, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
| | - Muhammad Awwad
- Internal medicine E, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel
| | - Giovanni Guaraldi
- Infectious Diseases Clinic, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Jovana Milić
- Infectious Diseases Clinic, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Cristina Mussini
- Infectious Diseases Clinic, Azienda Ospedaliero-Universitaria di Modena, Modena, Italy
| | - Marco Falcone
- Infectious Diseases Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Giusy Tiseo
- Department of Surgical, Medical, and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy
| | - Laura Carrozzi
- Department of Surgical, Medical, and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy; Pulmonary Unit, Cardiothoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | - Francesco Pistelli
- Department of Surgical, Medical, and Molecular Pathology and Critical Care Medicine, University of Pisa, Pisa, Italy; Pulmonary Unit, Cardiothoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | - Mayssam Nehme
- Division and Department of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Idris Guessous
- Division and Department of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland; Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Laurent Kaiser
- Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland
| | - Pauline Vetter
- Division of Infectious Diseases, Geneva University Hospitals, Geneva, Switzerland
| | | | - Xavier Durà-Miralles
- Department of Infectious Diseases, Bellvitge University Hospital, Barcelona, Spain; Spanish Network for Research in Infectious Diseases (REIPI), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Carlota Gudiol
- Infectious Diseases Department, Bellvitge University Hospital. Institut Català d'Oncologia (ICO), Hospital Duran I Reynals. IDIBELL, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Irit Shapira-Lichter
- Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel; Functional MRI Center, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel
| | - Donna Abecasis
- Functional MRI Center, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel
| | - Leonard Leibovici
- Research Authority, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel
| | - Dafna Yahav
- Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel; Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel
| | - Ili Margalit
- COVID recovery clinic, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel; Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel
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6
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Margalit I, Yelin D, Sagi M, Rahat MM, Sheena L, Mizrahi N, Gordin Y, Agmon H, Epstein NK, Atamna A, Tishler O, Daitch V, Babich T, Abecasis D, Yarom Y, Kazum S, Shitenberg D, Baltaxe E, Elkana O, Shapira-Lichter I, Leibovici L, Yahav D. Risk factors and multidimensional assessment of long COVID fatigue: a nested case-control study. Clin Infect Dis 2022; 75:1688-1697. [PMID: 35403679 PMCID: PMC9383780 DOI: 10.1093/cid/ciac283] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Fatigue is the most prevalent and debilitating long COVID symptom, however risk factors and pathophysiology of this condition remain unknown.We assessed risk factors for long COVID fatigue and explored its possible pathophysiology. METHODS Nested case-control study in a COVID recovery clinic. Individuals with (cases) and without (controls) significant fatigue were included. We performed a multidimensional assessment evaluating various parameters, including pulmonary function tests and cardiopulmonary exercise testing, and implemented multivariable logistic regression to assess risk factors for significant long COVID fatigue. RESULTS Total of 141 individuals were included. Mean age was 47 (SD 13) years; 115 (82%) were recovering from mild COVID-19. Mean time for evaluation was 8 months following COVID-19. Sixty-six (47%) individuals were classified with significant long COVID fatigue. They had significantly higher number of children, lower proportion of hypothyroidism, higher proportion of sore throat during acute illness and long COVID symptoms, and of physical limitation in daily activities.Individuals with fatigue had poorer sleep quality and higher degree of depression. They had significantly lower heart rate [153.52 (22.64) vs 163.52 (18.53), p=0.038] and oxygen consumption per Kg [27.69 (7.52) vs 30.71 (7.52), p=0.036] at peak exercise.The two independent risk factors for fatigue identified in multivariable analysis were peak exercise heart rate (odds ratio [OR] 0.79 per 10 beats/minute, 95% confidence interval [CI] 0.65-0.96, p=0.019); and long COVID memory impairment (OR 3.76, 95% CI 1.57-9.01, p=0.003). CONCLUSIONS Long COVID fatigue may be related to autonomic dysfunction, impaired cognition and decreased mood. This may suggest a limbic-vagal pathophysiology. Clinical Trial registration: NCT04851561.
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Affiliation(s)
- Ili Margalit
- Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,COVID Recovery Clinic, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Dana Yelin
- COVID Recovery Clinic, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Moshe Sagi
- Department of Internal Medicine F, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Maya Merav Rahat
- Department of Internal Medicine E, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Liron Sheena
- Department of Internal Medicine F, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Nadav Mizrahi
- Department of Internal Medicine B, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Yael Gordin
- The Hebrew University-Hadassah Medical School, Hebrew University, Jerusalem, Israel
| | - Hadar Agmon
- Department of Internal Medicine B, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Nitzan Karny Epstein
- Department of Internal Medicine B, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Alaa Atamna
- Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,COVID Recovery Clinic, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Ori Tishler
- COVID Recovery Clinic, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,Department of Internal Medicine F, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Vered Daitch
- Department of Internal Medicine E, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Tanya Babich
- Research Authority, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Donna Abecasis
- Functional MRI Center, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Yoni Yarom
- Medix Sport Medicine Center, Tel Aviv, Israel
| | - Shirit Kazum
- Department of Cardiology, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Dorit Shitenberg
- Pulmonary Institute, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Erik Baltaxe
- Pulmonary Institute, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Odelia Elkana
- Behavioral Sciences, Academic College of Tel Aviv-Yafo, Tel Aviv-Jaffa, Israel
| | - Irit Shapira-Lichter
- Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.,Functional MRI Center, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,Sagol School of Neuroscience, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
| | - Leonard Leibovici
- Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.,Research Authority, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Dafna Yahav
- Infectious Diseases Unit, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.,COVID Recovery Clinic, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
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7
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Assis J, Fragkopoulou E, Serrão EA, Horta E Costa B, Gandra M, Abecasis D. Weak biodiversity connectivity in the European network of no-take marine protected areas. Sci Total Environ 2021; 773:145664. [PMID: 33940752 DOI: 10.1016/j.scitotenv.2021.145664] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/20/2021] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
The need for international cooperation in marine resource management and conservation has been reflected in the increasing number of agreements aiming for effective and well-connected networks of Marine Protected Areas (MPAs). However, the extent to which individual MPAs are connected remains mostly unknown. Here, we use a biophysical model tuned with empirical data on species dispersal ecology to predict connectivity of a vast spectrum of biodiversity in the European network of marine reserves (i.e., no-take MPAs). Our results highlight the correlation between empirical propagule duration data and connectivity potential and show weak network connectivity and strong isolation for major ecological groups, resulting from the lack of direct connectivity corridors between reserves over vast regions. The particularly high isolation predicted for ecosystem structuring species (e.g., corals, sponges, macroalgae and seagrass) might potentially undermine biodiversity conservation efforts if local retention is insufficient and unmanaged populations are at risk. Isolation might also be problematic for populations' persistence in the light of climate change and expected species range shifts. Our findings provide novel insights for management directives, highlighting the location of regions requiring additional marine reserves to function as stepping-stone connectivity corridors.
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Affiliation(s)
- J Assis
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal.
| | - E Fragkopoulou
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - E A Serrão
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - B Horta E Costa
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - M Gandra
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
| | - D Abecasis
- CCMAR - Centre of Marine Sciences, University of Algarve, 8005-139 Faro, Portugal
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8
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Kleinmintz OM, Abecasis D, Tauber A, Geva A, Chistyakov AV, Kreinin I, Klein E, Shamay-Tsoory SG. Participation of the left inferior frontal gyrus in human originality. Brain Struct Funct 2017; 223:329-341. [PMID: 28828749 DOI: 10.1007/s00429-017-1500-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 08/14/2017] [Indexed: 12/18/2022]
Abstract
Human creative cognition is commonly described as a twofold cyclic process that involves an idea generation phase and an idea evaluation phase. Although the evaluation phase makes a crucial contribution to originality, its underlying mechanisms have not received sufficient research attention. Here, we suggest that the left inferior frontal gyrus (lIFG) plays a major role in the interplay between the evaluation and generation networks and that inhibiting this region's activity may have an effect on "releasing" the generation neural network, resulting in greater originality. To examine the neural networks that mediate the generation and evaluation of ideas, we conducted an fMRI experiment on a group of healthy human participants (Study 1), in which we compared an idea generation task to an idea evaluation task. We found that evaluating the originality of ideas is indeed associated with a relative increase in lIFG activation, as opposed to generating original ideas. We further showed that temporarily inhibiting the lIFG using continuous theta-burst stimulation (Study 2) results in less strict evaluation on the one hand and increased originality scores on the other. Our findings provide converging evidence from multiple methods to show that the lIFG participates in evaluating the originality of ideas.
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Affiliation(s)
- Oded M Kleinmintz
- Department of Psychology, University of Haifa, Mount Carmel, 31905, Haifa, Israel.
| | - Donna Abecasis
- The Graduate School of Creative Arts Therapies, Emili Sagol C.A.T Research Center, University of Haifa, Haifa, Israel
| | - Amitay Tauber
- Department of Psychology, University of Haifa, Mount Carmel, 31905, Haifa, Israel
| | - Amit Geva
- Department of Psychology, University of Haifa, Mount Carmel, 31905, Haifa, Israel
| | | | | | - Ehud Klein
- Department of Psychiatry, Rambam Medical Center, Haifa, Israel
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Corbalán J, Martín-Brufau R, Donolo D, Clapham M, Limiñana R, García-Peñas V, Elizondo R, Martínez-Zaragoza F, Abecasis D, Tabibian N, widerska A, Guerci B, Pérez del Viso R, Franco A, King R. CREA. A cross-cultural study. Personality and Individual Differences 2014. [DOI: 10.1016/j.paid.2013.07.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
The perception of meter, or the alternation of strong and weak beats, was assessed in musically trained listeners through magnetoencephalography. Metrical accents were examined with no temporal disruption of the serial grouping of tones. Results showed an effect of metrical processing among identical standard tones in the left hemisphere, with larger responses on strong than on weak beats. Moreover, processing of occasional increases in intensity (phenomenal accents) varied as a function of metrical position in the left hemisphere, but not in the right. Our findings support the view of a relatively early, left-hemispheric effect of metrical processing in musicians.
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Affiliation(s)
- Donna Abecasis
- Department of the Arts, Faculty of Humanities and Social Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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Brochard R, Abecasis D, Potter D, Ragot R, Drake C. The "ticktock" of our internal clock: direct brain evidence of subjective accents in isochronous sequences. Psychol Sci 2003; 14:362-6. [PMID: 12807411 DOI: 10.1111/1467-9280.24441] [Citation(s) in RCA: 125] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The phenomenon commonly known as subjective accenting refers to the fact that identical sound events within purely isochronous sequences are perceived as unequal. Although subjective accenting has been extensively explored using behavioral methods, no physiological evidence has ever been provided for it. In the present study, we tested the notion that these perceived irregularities are related to the dynamic deployment of attention. We disrupted listeners' expectancies in different positions of auditory equitone sequences and measured their responses through brain event-related potentials (ERPs). Significant differences in a late parietal (P3-like) ERP component were found between the responses elicited on odd-numbered versus even-numbered positions, suggesting that a default binary metric structure was perceived. Our findings indicate that this phenomenon has a rather cognitive, attention-dependent origin, partly affected by musical expertise.
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Affiliation(s)
- Renaud Brochard
- Laboratoire d'Etude des Apprentissages et du Développement, CNRS UMR 5022, Université de Bourgogne, Dijon, France.
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