GUILHERME VANONI POLANCZYK

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Departamento de Psiquiatria, Faculdade de Medicina - Docente
LIM/23 - Laboratório de Psicopatologia e Terapêutica Psiquiátrica, Hospital das Clínicas, Faculdade de Medicina - Líder

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Autor e Coautores FMUSP-HC Normalizados: ALICIA MATIJASEVICH MANITTO × Assunto: Psychology, Developmental ×

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Agora exibindo 1 - 6 de 6
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  • article 6 Citação(ões) na Scopus
    Relationships between childhood maltreatment, impairment in executive functions and disruptive behavior disorders in a community sample of children
    (2020) BERNARDES, Elisa Teixeira; MANITTO, Alicia Matijasevich; MIGUEL, Euripedes Constantino; PAN, Pedro Mario; BATISTUZZO, Marcelo Camargo; ROHDE, Luis Augusto; POLANCZYK, Guilherme V.
    Evidence points to an independent relationship among childhood maltreatment, impairments in executive functions (EF) and disruptive behavior disorders (DBD). However, it is still not fully understood how these three factors are interrelated. This study evaluated the association between childhood maltreatment and DBD testing the role of EF performance as a mediator or moderator. We studied a probabilistic school-based sample of 2016 children from 6 to 12 years. Mental disorders were assessed using the Development and Well-Being Assessment with parents and children. Children answered questions about exposure to child maltreatment and were evaluated with a set of cognitive tasks addressing inhibitory control, working memory, cognitive flexibility and planning. Childhood maltreatment was strongly associated with DBD (OR = 7.7, CI 95% 4.5-12.9). No association was found between childhood maltreatment and EF performance. Children with DBD showed worse performance in cognitive flexibility, which was not identified as a mediator or moderator of the association between childhood maltreatment and DBD. Results indicate that the association between maltreatment and disruptive behavior occurs regardless of performance in executive function in a community sample. Future studies are essential to confirm these findings and elucidate the cognitive mechanisms involved in this association.
  • article 6 Citação(ões) na Scopus
    Promoting mother-infant relationships and underlying neural correlates: Results from a randomized controlled trial of a home-visiting program for adolescent mothers in Brazil
    (2021) ALARCAO, Fernanda Speggiorin Pereira; SHEPHARD, Elizabeth; FATORI, Daniel; AMAVEL, Renata; CHIESA, Anna; FRACOLLI, Lislaine; MATIJASEVICH, Alicia; BRENTANI, Helena; NELSON, Charles A.; LECKMAN, James; MIGUEL, Euripedes Constantino; V, Guilherme Polanczyk
    Poverty and teenage pregnancy are common in low-and-middle-income countries and can impede the development of healthy parent-child relationships. This study aimed to test whether a home-visiting intervention could improve early attachment relationships between adolescent mothers and their infants living in poverty in Brazil. Analyses were conducted on secondary outcomes from a randomized controlled trial (NCT0280718) testing the efficacy of a home-visiting program, Primeiros Lacos, on adolescent mothers' health and parenting skills and their infants' development. Pregnant youth were randomized to intervention (n = 40) or care-as-usual (CAU, n = 40) from the first trimester of pregnancy until infants were aged 24 months. Mother-infant attachment was coded during a mother-infant interaction when the infants were aged 12 months. Electrophysiological correlates of social processing (mean amplitude of the Nc component) were measured while infants viewed facial images of the mother and a stranger at age 6 months. Infants in the intervention group were more securely attached and more involved with their mothers than those receiving CAU at 12 months. Smaller Nc amplitudes to the mother's face at 6 months were associated with better social behavior at 12 months. Our findings indicate that the Primeiros Lacos Program is effective in enhancing the development of mother-infant attachment.
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    THE EFFECTS ON CHILD DEVELOPMENT OF A NURSE HOME VISITATION PROGRAM FOR PREGNANT YOUTH LIVING IN ADVERSE CONDITIONS: A RANDOMIZED CONTROLLED TRIAL
    (2019) FATORI, Daniel; MATIJASEVITCH, Alicia; BRENTANI, Helena; MIGUEL, Euripedes Constantino; POLANCZYK, Guilherme
  • article 3 Citação(ões) na Scopus
    Integrating child and adolescent psychiatry and the field of early childhood development
    (2018) POLANCZYK, Guilherme V.; FATORI, Daniel; MATIJASEVICH, Alicia
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