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Kleckner IR, Wormwood JB, Jones RM, Culakova E, Barrett LF, Lord C, Quigley KS, Goodwin MS. Adaptive thresholding increases sensitivity to detect changes in the rate of skin conductance responses to psychologically arousing stimuli in both laboratory and ambulatory settings. Int J Psychophysiol 2024; 196:112280. [PMID: 38104772 PMCID: PMC10872538 DOI: 10.1016/j.ijpsycho.2023.112280] [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: 06/09/2023] [Revised: 11/03/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
Psychophysiologists recording electrodermal activity (EDA) often derive measures of slow, tonic activity-skin conductance level (SCL)-and faster, more punctate changes-skin conductance responses (SCRs). A SCR is conventionally considered to have occurred when the local amplitude of the EDA signal exceeds a researcher-determined threshold (e.g., 0.05 μS), typically fixed across study participants and conditions. However, fixed SCR thresholds can preferentially exclude data from individuals with low SCL because their SCRs are smaller on average, thereby reducing statistical power for group-level analyses. Thus, we developed a fixed plus adaptive (FA) thresholding method that adjusts identification of SCRs based on an individual's SC at the onset of the SCR to increase statistical power and include data from more participants. We assess the utility of applying FA thresholding across two independent samples and explore age and race-related associations with EDA outcomes. Study 1 uses wired EDA measurements from 254 healthy adults responding to evocative images and sounds in a laboratory setting. Study 2 uses wireless EDA measurements from 20 children with autism in a clinical environment while they completed behavioral tasks. Compared to a 0.01, 0.03, and 0.05 μS fixed threshold, FA thresholding at 1.9% modestly increases statistical power to detect a difference in SCR rate between tasks with higher vs. lower subjective arousal and reduces exclusion of participants by up to 5% across both samples. This novel method expands the EDA analytical toolbox and may be useful in populations with highly variable basal SCL or when comparing groups with different basal SCL. Future research should test for reproducibility and generalizability in other tasks, samples, and contexts. IMPACT STATEMENTS: This article is important because it introduces a novel method to enhance sensitivity and statistical power in analyses of skin conductance responses from electrodermal data.
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Affiliation(s)
| | | | - Rebecca M Jones
- Weill Cornell Medicine, The Center for Autism and the Developing Brain, White Plains, NY, USA
| | - Eva Culakova
- University of Rochester Medical Center, Rochester, NY, USA
| | - Lisa Feldman Barrett
- Northeastern University, Boston, MA, USA; Department of Psychiatry and the Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, USA
| | - Catherine Lord
- Weill Cornell Medicine, The Center for Autism and the Developing Brain, White Plains, NY, USA; Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, CA, USA
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2
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Ham EI, Perez-Chadid DA, Wang Z, Abdi H, Shlobin NA, Negida A, Barthélemy EJ, Thango N, Park KB, Esene IN. Authorship Disparities in International Neurosurgical Research Collaborations: A Bibliometric Analysis. World Neurosurg 2023:S1878-8750(23)00815-X. [PMID: 37348602 DOI: 10.1016/j.wneu.2023.06.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/11/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Affiliation(s)
- Edward I Ham
- Program in Global Surgery and Social Change, Harvard Medical School, Boston, MA, USA.
| | | | - Zhe Wang
- Department of Neurological Surgery, The University of Chicago, Chicago, IL
| | - Hodan Abdi
- Program in Global Surgery and Social Change, Harvard Medical School, Boston, MA, USA
| | - Nathan A Shlobin
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Ahmed Negida
- Program in Global Surgery and Social Change, Harvard Medical School, Boston, MA, USA
| | - Ernest J Barthélemy
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA; Center for Health Equity in Surgery and Anesthesia, University of California San Francisco, San Francisco, CA, USA
| | - Nqobile Thango
- Division of Neurosurgery, University of Cape Town, Cape Town, South Africa; Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Kee B Park
- Program in Global Surgery and Social Change, Harvard Medical School, Boston, MA, USA
| | - Ignatius N Esene
- Neurosurgery Division, Faculty of Health Sciences, University of Bamenda, Bambili, Cameroon
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Filbey L, Zhu JW, D'Angelo F, Thabane L, Khan MS, Lewis E, Patel MR, Powell-Wiley T, Miranda JJ, Zuhlke L, Butler J, Zannad F, Van Spall HGC. Improving representativeness in trials: a call to action from the Global Cardiovascular Clinical Trialists Forum. Eur Heart J 2023; 44:921-930. [PMID: 36702610 DOI: 10.1093/eurheartj/ehac810] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/24/2022] [Accepted: 12/20/2022] [Indexed: 01/28/2023] Open
Abstract
Participants enrolled in cardiovascular disease (CVD) randomized controlled trials are not often representative of the population living with the disease. Older adults, children, women, Black, Indigenous and People of Color, and people living in low- and middle-income countries are typically under-enrolled in trials relative to disease distribution. Treatment effect estimates of CVD therapies have been largely derived from trial evidence generated in White men without complex comorbidities, limiting the generalizability of evidence. This review highlights barriers and facilitators of trial enrollment, temporal trends, and the rationale for representativeness. It proposes strategies to increase representativeness in CVD trials, including trial designs that minimize the research burden on participants, inclusive recruitment practices and eligibility criteria, diversification of clinical trial leadership, and research capacity-building in under-represented regions. Implementation of such strategies could generate better and more generalizable evidence to reduce knowledge gaps and position the cardiovascular trial enterprise as a vehicle to counter existing healthcare inequalities.
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Affiliation(s)
- Lynaea Filbey
- Department of Medicine, McMaster University, 20 Copeland Avenue, David Braley Research Building, Suite C3-117, Hamilton, ON L8L 0A3, Canada
| | - Jie Wei Zhu
- Department of Medicine, McMaster University, 20 Copeland Avenue, David Braley Research Building, Suite C3-117, Hamilton, ON L8L 0A3, Canada
| | - Francesca D'Angelo
- Department of Medicine, McMaster University, 20 Copeland Avenue, David Braley Research Building, Suite C3-117, Hamilton, ON L8L 0A3, Canada
| | - Lehana Thabane
- Research Institute of St. Josephs, St. Joseph's Healthcare Hamilton, 50 Charlton Ave E, Hamilton, ON L8N 4A6, Canada.,Population Health Research Institute, 237 Barton St E, Hamilton ON L8L 2X2, Canada.,Faculty of Health Sciences, University of Johannesburg, 1 Bunting Road, FADA Building, Johannesburg, Gauteng 2092, South Africa.,Department of Health Research Methods, Evidence, and Impact, McMaster University, 1280 Main St W, McMaster University Medical Centre, 2C Area, Hamilton, ON L8S 4K1, Canada
| | - Muhammad Shahzeb Khan
- Division of Cardiology, Duke Clinical Research Institute, 300 W Morgan Street, Duke University School of Medicine, Durham, NC 27701, USA
| | - Eldrin Lewis
- Cardiovascular Division, Stanford University School of Medicine, 291 Campus Drive, Li Ka Shing Building, Stanford, CA 94305-5101, USA
| | - Manesh R Patel
- Division of Cardiology, Duke Clinical Research Institute, 300 W Morgan Street, Duke University School of Medicine, Durham, NC 27701, USA
| | - Tiffany Powell-Wiley
- Social Determinants of Obesity and Cardiovascular Risk Laboratory, Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, 31 Center Drive, Building 31, Bethesda, MD 20892, USA.,Intramural Research Program, National Institute on Minority Health and Health Disparities, National Institutes of Health, 6707 Democracy Boulevard, Suite 800, Bethesda, MD 20892-5465, USA
| | - J Jaime Miranda
- CRONICAS Center of Excellence in Chronic Diseases, Av. Armendariz, 2nd floor, Miraflores 15074, Lima, Peru
| | - Liesl Zuhlke
- South African Medical Research Council and Division of Paediatric Cardiology, University of Cape Town and Red Cross Memorial Children's Hospital, Klipfontein Road, Rondebosch, Cape Town, Western Cape 7700, South Africa
| | - Javed Butler
- Department of Medicine, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA.,Baylor Scott and White Research Insistute, 3434 Live Oak St, Suite 501, Dallas, TX 75204, USA
| | - Faiez Zannad
- Centre d'Investigations Cliniques Plurithématique 1433, Université de Lorraine, 4 rue du Morvan, ILM, ground floor, Vandoeuvre-des-Nancy, Meurthe-et-Moselle 54500, France.,Institut National de la Santé et de la Recherche Médicale 1116, Centre Hospitalier Régional, 18 av Mozart, Marseille, Bouches-du-Rhône 13276, France.,Investigation Network Initiative-Cardiovascular and Renal Clinical Trialists, Universitaire de Nancy, French Clinical Research Infrastructure Network, 4 rue de Morvan, Vandoeuvre-des-Nancy, Meurthe-et-Moselle 54500, France
| | - Harriette G C Van Spall
- Department of Medicine, McMaster University, 20 Copeland Avenue, David Braley Research Building, Suite C3-117, Hamilton, ON L8L 0A3, Canada.,Research Institute of St. Josephs, St. Joseph's Healthcare Hamilton, 50 Charlton Ave E, Hamilton, ON L8N 4A6, Canada.,Population Health Research Institute, 237 Barton St E, Hamilton ON L8L 2X2, Canada.,Department of Health Research Methods, Evidence, and Impact, McMaster University, 1280 Main St W, McMaster University Medical Centre, 2C Area, Hamilton, ON L8S 4K1, Canada
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van Biljon H, van Niekerk L, Margot-Cattin I, Adams F, Plastow N, Bellagamba D, Kottorp A, Patomella AH. The health equity characteristics of research exploring the unmet community mobility needs of older adults: a scoping review. BMC Geriatr 2022; 22:808. [PMID: 36266632 PMCID: PMC9585759 DOI: 10.1186/s12877-022-03492-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 03/22/2022] [Accepted: 09/26/2022] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Unmet community mobility needs of older adults, published since the announcement of the UN sustainable development goals was synthesised to describe the health equity characteristics of research identifying unmet community mobility needs of older adults. METHODS Searches were conducted in March and April 2020, 2275 articles were screened and 100 identified for data extraction. RESULTS Findings showed underrepresentation of articles considering rural settings [9%] and originating in the global South [14%]. Gender, disability, education, and transport / driving were identified as key health equity characteristics and only 10 articles provided detail on all four of these. External factors inhibiting community mobility included built environments, service availability, and societal attitudes. Internal factors included finances, fear and apprehension, and functional limitations. CONCLUSIONS The need for standardised reporting of participant characteristics in the community mobility of older adults was highlighted. These characteristics are required by research consumers to judge equity dimensions, and the extent to which findings represent minority or marginalised groups. 15 after the UN pledge to reduce inequalities, peer reviewed primary research does not reflect a global drive to end discrimination, exclusion and reduce the inequalities and vulnerabilities that leave people behind.
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Affiliation(s)
- Hester van Biljon
- grid.11956.3a0000 0001 2214 904XStellenbosch University, Stellenbosch, South Africa
| | - Lana van Niekerk
- grid.11956.3a0000 0001 2214 904XStellenbosch University, Stellenbosch, South Africa
| | - Isabel Margot-Cattin
- grid.410380.e0000 0001 1497 8091University of Applied Sciences and Arts, Windisch, Switzerland
| | - Fasloen Adams
- grid.11956.3a0000 0001 2214 904XStellenbosch University, Stellenbosch, South Africa
| | - Nicola Plastow
- grid.11956.3a0000 0001 2214 904XStellenbosch University, Stellenbosch, South Africa
| | - David Bellagamba
- grid.410380.e0000 0001 1497 8091University of Applied Sciences and Arts, Windisch, Switzerland
| | - Anders Kottorp
- grid.32995.340000 0000 9961 9487Malmö University, Malmö, Sweden
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Shlobin NA, Punchak MA, Boyke AE, Beestrum M, Gutzman K, Rosseau G. Language and Geographic Representation of Neurosurgical Journals: A Meta-Science Study. World Neurosurg 2022; 166:171-183. [PMID: 35953039 DOI: 10.1016/j.wneu.2022.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 05/10/2022] [Revised: 07/31/2022] [Accepted: 08/01/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Medical journals have a role in promoting representation of neurosurgeons who speak primary languages other than English. We sought to characterize the language of publication and geographic origin of neurosurgical journals, delineate associations between impact factor (IF) and language and geographic variables, and describe steps to overcome language barriers to publishing. METHODS Web of Science, Scopus, and Ulrich's Serial Analysis system were searched for neurosurgery journals. The journals were screened for relevance. Language of publication, country and World Health Organization region, World Bank income status and gross domestic product, and citation metrics were extracted. RESULTS Of 867 journals, 74 neurosurgical journals were included. Common publication languages were English (52, 70.3%), Mandarin (5, 6.8%), and Spanish (4, 5.4%). Countries of publication for the greatest number of journals were the United States (23, 31.1%), United Kingdom (8, 10.8%), and China (6, 8.1%). Most journals originated from the Americas region (29, 39.2%), the European region (28, 37.8%), and from high-income countries (n = 54, 73.0%). Median IF was 1.55 (interquartile range [IQR] 0.89-2.40). Journals written in English (1.77 [IQR 1.00-2.87], P = 0.032) and from high-income countries (1.81 [IQR 1.0-2.70], P = 0.046) had highest median IF. When excluding outliers, there was a small but positive correlation between per capita gross domestic product and IF (β = 0.021, P = 0.03, R2 = 0.097). CONCLUSIONS Language concordance represents a substantial barrier to research equity in neurosurgery, limiting dissemination of ideas of merit that currently have inadequate outlets for readership. Initiatives aimed at increasing the accessibility of neurosurgical publishing to underrepresented authors are essential.
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Affiliation(s)
- Nathan A Shlobin
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.
| | - Maria A Punchak
- Department of Neurosurgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
| | - Andre E Boyke
- Department of Neurosurgery, Mount Sinai Icahn School of Medicine, New York, New York, USA
| | - Molly Beestrum
- Galter Health Sciences Library, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Karen Gutzman
- Galter Health Sciences Library, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Gail Rosseau
- Department of Neurological Surgery, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA
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