Results 61 to 70 of about 365,708 (323)

Prenatal growth markers in schizophrenia: a monozygotic co-twin control study. [PDF]

open access: yes, 1996
OBJECTIVE: This co-twin study investigated monozygotic twins who were discordant for schizophrenia for evidence of prenatal growth differences between the affected and well co-twins. METHOD: Four dermatoglyphic markers of prenatal growth were obtained by
Bracha, HS, Davis, JO
core  

Research with twins: The concept of emergenesis. [PDF]

open access: yes, 1982
Preliminaty findings from an on-going study of monozygotic twins reared apart (MZA) and data from a larger sample of twins reared together (MZT and DZT), indicate a surprisingly strong influence of genetic variation on aptitudes, psychophysiological ...
Lykken, David T.
core   +1 more source

Unravelling Twin Births in German Holstein Cows: Phenotypic Associations, Genetic Analysis and Potential Underlying Genes and Hormones

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Twin births in dairy cattle are rare but present significant challenges for animal welfare, as both the health of the cow and the calves are affected. This causes economic losses, which prompts breeders to select against twin births and identify associated risk factors.
Laura Hüneke   +4 more
wiley   +1 more source

Preverbal Language Abilities in Monozygotic and Dizygotic Twins [PDF]

open access: yes, 2007
This study examined prelinguistic language development of twins by delineating: differences from developmental expectations; twin-twin communication and twin-mother communication differences; and monozygotic-dizygotic differences.
Albrecht, Sara
core   +1 more source

A dohányzási szokásokat befolyásoló környezeti tényezők egy- és kétpetéjű ikrek körében [PDF]

open access: yes, 2013
Introduction: Smoking habits are influenced by environmental (family, friends) and psychologic factors. Aim: To investigate environmental factors which influence the smoking habits of monozygotic and dizygotic twins.
Bakkne Nagy M,   +2 more
core   +1 more source

Methylomic analysis of monozygotic twins discordant for autism spectrum disorder and related behavioural traits

open access: yesMolecular Psychiatry, 2013
Autism spectrum disorder (ASD) defines a group of common, complex neurodevelopmental disorders. Although the aetiology of ASD has a strong genetic component, there is considerable monozygotic (MZ) twin discordance indicating a role for non-genetic ...
Chloe C. Y. Wong   +7 more
semanticscholar   +1 more source

Subclinical hypomania, psychiatric and neurodevelopmental diagnoses: phenotypic and aetiological overlap

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Subclinical hypomanic symptoms are fairly common in the general population but are linked to psychiatric and neurodevelopmental conditions. However, the genetic and environmental origins of these associations are unclear. This twin study examined the phenotypic and aetiological associations between subclinical hypomania and psychiatric and ...
Georgina M. Hosang   +6 more
wiley   +1 more source

Comparison of Occlusal Indices and Dental Arch Dimensions in Monozygotic Twins

open access: yesپزشکی بالینی ابن سینا, 2007
Introduction & Objective: The study of monozygotic twins is a valuable method for distinguishing the genetic and environmental etiologic factors. The purpose of this study was comparison between occlusal indices and dental arch dimensions in monozygotic ...
Seyyed Mostafa Abtahi
doaj  

A person‐centered and genetically informed approach toward characterizing multidomain resilience to neighborhood disadvantage in youth

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Examining resilience to adversity across multiple behavioral domains (e.g., psychological well‐being, social functioning) can better characterize positive development and inform novel prevention and intervention efforts. However, few studies have employed person‐centered methods to examine individual profiles of resilience across multiple ...
Jessica L. Bezek   +5 more
wiley   +1 more source

Psychosocial twin cohort studies in Japan: the Keio Twin Research Center (KoTReC) [PDF]

open access: yes, 2019
The Keio Twin Research Center (KoTReC) was established in 2009 at Keio University to combine two longitudinal cohort projects — the Keio Twin Study (KTS) for adolescence and adulthood and the Tokyo Twin Cohort Project (ToTCoP) for infancy and childhood ...
Ando, Juko   +20 more
core   +2 more sources

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