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Advancing Biobehavioral Research: An Overview and Update from the University of São Paulo Twin Panel

Published online by Cambridge University Press:  23 January 2026

Edgard Michel Crosato ,
Maria de Lourdes Brizot ,
John Fontenele Araujo ,
Fraulein Vidigal de Paula ,
Patricia Ferreira Monticelli Open the ORCID record for Patricia Ferreira Monticelli [Opens in a new window] ,
Briseida Dôgo de Resende ,
Mario Henrique Burlacchini de Carvalho ,
Mariana Azevedo Carvalho Open the ORCID record for Mariana Azevedo Carvalho [Opens in a new window] ,
Cintia Fridman  and
Fausto Medeiros Mendes
...Show all authors
Edgard Michel Crosato
Affiliation:
Universidade de São Paulo, Faculdade de Odontologia, Departamento de Odontologia Social
Maria de Lourdes Brizot
Affiliation:
Universidade de São Paulo, Faculdade de Medicina, Departamento de Obstetrícia e Ginecologia
John Fontenele Araujo
Affiliation:
Universidade Federal do Rio Grande do Norte, Departamento de Fisiologia
Fraulein Vidigal de Paula
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia da Aprendizagem, do Desenvolvimento e da Personalidade
Patricia Ferreira Monticelli
Affiliation:
Universidade of São Paulo, Brazil
Briseida Dôgo de Resende
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Mario Henrique Burlacchini de Carvalho
Affiliation:
Universidade de São Paulo, Faculdade de Medicina, Departamento de Obstetrícia e Ginecologia
Mariana Azevedo Carvalho
Affiliation:
Universidade de São Paulo, Faculdade de Medicina, Departamento de Obstetrícia e Ginecologia
Cintia Fridman
Affiliation:
Universidade de São Paulo, Faculdade de Medicina, Departamento de Medicina Legal, Bioética, Medicina do Trabalho e Medicina Física e Reabilitação, São Paulo, São Paulo, Brazil
Fausto Medeiros Mendes
Affiliation:
Universidade de São Paulo, Departamento de Ortodontia e Odontopediatria, São Paulo, São Paulo, Brazil
Mariana Minatel Braga Fraga
Affiliation:
Universidade de São Paulo, Departamento de Ortodontia e Odontopediatria, São Paulo, São Paulo, Brazil
Paulo Henrique Braz da Silva
Affiliation:
Universidade de São Paulo, Departamento de Estomatologia, São Paulo, São Paulo, Brazil
Herculano da Silva Martinho
Affiliation:
Universidade Federal do ABC, Centro de Ciências Naturais e Humanas, São Paulo, São Paulo, Brazil
Nancy Lee Segal
Affiliation:
California State University Fullerton, Department of Psychology, Fullerton, California, USA
Rana Esseily
Affiliation:
Université Paris Ouest Nanterre La Défense, Laboratoire Éthologie Cognition Développement, Nanterre, France
Tania Kiehl Lucci
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Experimental Psychology, São Paulo, São Paulo, Brazil Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Ricardo Prist
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Claudio Possani
Affiliation:
Universidade de São Paulo, Instituto de Matemática e Estatística, São Paulo, São Paulo, Brazil Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Claudia Monteiro Peixoto
Affiliation:
Universidade de São Paulo, Departamento de Matemática Aplicada, São Paulo, São Paulo, Brazil Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Rosana Suemi Tokumaru
Affiliation:
Universidade Federal do Espírito Santo, Departamentos de Psicologia Social e do Desenvolvimento, Brazil Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Isabella França Ferreira
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Lilian Cristina Luchesi
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Experimental Psychology, São Paulo, São Paulo, Brazil Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Psychology, Ribeirão Preto, São Paulo, Brazil Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Jennifer Leão Correia
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Elisangela dos Anjos Paula Vieira
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Timon Lebaron-Khérif
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Julia Gomes Freitas
Affiliation:
Universidade de São Paulo, Faculdade de Odontologia, Departamento de Odontologia Social Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Adriana Sicuto de Oliveira Ueno
Affiliation:
Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Psychology, Ribeirão Preto, São Paulo, Brazil
Sarah Maria Barneze Costa
Affiliation:
Universidade de São Paulo, Faculdade de Medicina, Departamento de Obstetrícia e Ginecologia Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Thaís Gomes de Oliveira Machado
Affiliation:
Universidade de São Paulo, Faculdade de Odontologia, Departamento de Odontologia Social Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Laura Regina Antunes Pontes
Affiliation:
Universidade de São Paulo, Faculdade de Odontologia, Departamento de Odontologia Social Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
Liana Isler Kupferman
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Experimental Psychology, São Paulo, São Paulo, Brazil Independent Researcher
Emma Otta*
Affiliation:
Universidade de São Paulo, Instituto de Psicologia, Departamento de Psicologia Experimental, São Paulo, Brazil
*
Corresponding author: Emma Otta; Email: emmaotta@gmail.com
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Abstract

The Painel USP de Gêmeos (University of São Paulo Twin Panel) is, based at the Instituto de Psicologia da Universidade de São Paulo. It was formally established in 2017 to advance research on fundamental psychological processes through twin study designs. Our relatively new registry comprises a volunteer sample of 8839 twin individuals, 70% of whom live in Brazil’s Southeast, the region with the highest twinning birth rate (10.64‰) of the country, within a national population of 213 million. Our collaborative research group has expanded to include partners from psychology, dentistry, and medicine at USP, as well as other Brazilian institutions, such as the Universidade Federal do Rio Grande do Norte, Universidade Federal da Bahia, and Universidade Federal do Espírito Santo. We are advancing biobehavioral research in Brazil through innovative methodologies, interdisciplinary collaboration, and international partnerships. All twin participants contribute to multiple studies associated with four datasets employing the same hierarchical identification system for participants and families: the Biorepository, the Physiological and Physical Repository, the Behavioral Repository, and Fonoteca Cesar Ades (FOCA). Future directions include expanding our twin registry across the five regions of Brazil, our research partnerships, promoting genetic literacy, and fostering public engagement.

Keywords

TwinsBiobehavioral researchBrazil

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Twin Research and Human Genetics , First View , pp. 1 - 10
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© The Author(s), 2026. Published by Cambridge University Press on behalf of International Society for Twin Studies

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