The CCC model (adapted from Kendler et al., 1999).
PPT
PPT
Kendler et al (1985) Kendler et al (1985) Genetic explanation of
Genetic similarity
COMMENTS
A Swedish national twin study of lifetime major depression
Method: Lifetime major depression was assessed at personal interview by modified DSM-IV criteria in 42,161 twins, including 15,493 complete pairs, from the national Swedish Twin Registry. Twin models were evaluated by using the program Mx.
research method
Overall, Kendler et al concluded that the heritability of depression is moderate and estimated it to be 38% which was in line with previous research estimating 37%. This study suggests both that the heritability of major depression is higher in women than in men and that some genetic risk factors for major depression are sex-specific.
A Swedish National Twin Study of Lifetime Major Depression
These results imply the exist-ence of genes that have different impacts on the risk for major depression in men and women. For example, genes might exist that would alter the risk for depression in women in response to the variable hormonal environment KENDLER, GATZ, GARDNER, ET AL. of the menstrual cycle and pregnancy (27, 28).
A Swedish National Twin Study of Lifetime Major Depression
OBJECTIVE: Substantial evidence supports the heritability of lifetime major depression. Less clear is whether genetic influences in major depression are more important in women than in men and whether genetic risk factors are the same in the two sexes. It is not known whether genetic effects on major depression are constant across historical cohorts. METHOD: Lifetime major depression was ...
Chapter 4: Biological Approaches to Understanding Behaviour
Focus on Research - correlational (twin) study - Kendler et al. (2006) Kendler at al. (2006) conducted a very large Swedish twin study with 15,493 complete twin pairs listed in the national twin registry.
Symptoms of major depression: Their stability, familiality, and
Methods We examine, in twins from a population-based registry, similarity in symptom endorsement in individuals meeting criteria for last-year MD at separate interview waves and in concordant twin pairs. Among individuals with MD, we explore the impact of genetic-temperamental and child adversity risk factors on individual reported symptoms.
Personality and major depression: a Swedish longitudinal ...
Objective: To clarify the magnitude and nature of the association between neuroticism and extroversion and the risk for MD. Design: Longitudinal population-based twin cohort. Setting: General community. Participants: A total of 20 692 members of same-sex twin pairs from the population-based Swedish Twin Registry who completed a self-report ...
Stressful Life Events, Genetic Liability, and Onset of an Episode of
Adopting a somewhat similar strategy, Kendler and colleagues (Kendler et al., 1995; Kendler, Walters, & Kessler, 1997) examined a subset of self-reported life events and evaluated the degree of ...
A Swedish National Twin Study of Lifetime Major Depression
Pia Svedberg. ... In adulthood, heritability of anxiety and major depression was estimated around 40% (Sullivan et al., 2000). Similarly, Kendler et al. (2006) reported that the heritability of ...
Kendler et al (2006) Flashcards
Kendler et al (2006) This study can be used for... 1. Genes and human behaviour genetic similarities. Aim. To investigate the heritability of depression. Research method. Correlation (interviews; twin study) Participants.
Life Stress, the "Kindling" Hypothesis, and the Recurrence of
Despite the strengths of the kindling hypothesis, a review of the research literature reveals inconsistencies and confusion about life stress and its implications for the recurrence of depression.
Kendler et. al. (2006) Flashcards
Study with Quizlet and memorize flashcards containing terms like Aim, Method, Participants and more.
Twin Studies: Experimental or Correlational?
This leaves me with the obvious conclusion that when asked about "one research method used to study genes and behaviour," students would be able to use DZ-MZ twin studies and identify this method as either being quasi-experimental or correlational, because either is a defensible position.
Genes, environment, and psychopathology: Understanding the causes of
One of the central questions in the study of psychopathology is why certain people develop psychiatric and substance use disorders while others--even those with similar family backgrounds and life experiences--do not. This groundbreaking volume synthesizes the results of a landmark research program to shed new light on the ways genetic and environmental influences weave together to create risk ...
Reinterpreting Comorbidity: A Model-Based Approach to Understanding and
Five studies were included in the meta-analysis: a population-based study of the Virginia Twin Registry ( Kendler et al. 2003 ), a study based on the National Comorbidity Survey ( Krueger 1999 ), a population-based study in the Netherlands ( Vollebergh et al. 2001 ), a population-based study in New Zealand ( Krueger et al. 1998 ), and a study ...
The nature of psychiatric disorders
Abstract A foundational question for the discipline of psychiatry is the nature of psychiatric disorders. What kinds of things are they? In this paper, I review and critique three major relevant theories: realism, pragmatism and constructivism. Realism assumes that the content of science is real and independent of human activities. I distinguish two "flavors" of realism: chemistry-based ...
Rethinking Twins and Environments: Possible Social Sources
To our knowledge, no research exam- broad measures of the environment (e.g., ines how the relative similarity of peer net- Hettema, Neale, and Kendler 1995; Kendler works of monozygotic and dizygotic twins and Prescott 1999; Kendler et al. 2000a; could account for patterns of behavioral simi- LaBuda, Svikis, and Pickens 1997). There are larity.
A National Swedish Twin-Sibling Study of Alcohol Use Disorders
AUDs strongly run in families ( Cotton, 1979 ). While twin and adoption studies have unequivocally demonstrated a substantial genetic contribution to the etiology of AUDs (e.g., Cadoret et al., 1987; Cloninger et al., 1981; Goodwin et al., 1973; Heath et al., 1997; Kaij, 1960; Kendler et al., 1997; Kendler et al., 2015; Pickens et al., 1991; Prescott et al., 1999; Sigvardsson et al., 1996 ...
Kendler et al. (1991)
Kendler et al. (1991) Kendler et al. (1991) Aims and hypotheses: To investigate risk factors and genetic inheritance in bulimia nervosa. Method: 2163 female twins. One of the twins in the pair had developed bulimia. Longitudinal. Researchers conducted interviews with the twins to see if the other twin would develop bulimia and if concordance ...
Examining the perception of undergraduate health professional students
The learning environment is fundamental to higher education and has a profound impact on student outcomes. As conceptualized by Gruppen et al. [], it comprises a complex interplay of physical, social, and virtual factors that shape student engagement, perception, and overall development.Over the last decade, there has been a growing global emphasis on the quality of the learning environment in ...
Kendler et al (2006) Flashcards
Study with Quizlet and memorize flashcards containing terms like Category, Kendler et al (2006) - research method and aim, Kendler et al (2006) - procedure and more.
One Health Investigation into Mpox and Pets, United States
Research One Health Investigation into Mpox and Pets, United States ... Methods and Materials. ... Patton J, et al. characterization of acute-phase humoral immunity to monkeypox: use of immunoglobulin M enzyme-linked immunosorbent assay for detection of monkeypox infection during the 2003 North American outbreak. Clin Diagn Lab Immunol. 2005 ...
Family environment and the malleability of cognitive ...
Recall, for example, the aforementioned study demonstrating that adopted children come to resemble their adoptive parents' cognitive abilities (Kendler et al., 2015).
A Scottish provenance for the Altar Stone of Stonehenge
Understanding the provenance of megaliths used in the Neolithic stone circle at Stonehenge, southern England, gives insight into the culture and connectivity of prehistoric Britain. The source of ...
Highest ocean heat in four centuries places Great Barrier Reef in
High ocean temperatures that caused mass coral bleaching and mortality on the Great Barrier Reef in the past decade are the warmest in 400 years and are the result of human-caused climate change.
IMAGES
COMMENTS
Method: Lifetime major depression was assessed at personal interview by modified DSM-IV criteria in 42,161 twins, including 15,493 complete pairs, from the national Swedish Twin Registry. Twin models were evaluated by using the program Mx.
Overall, Kendler et al concluded that the heritability of depression is moderate and estimated it to be 38% which was in line with previous research estimating 37%. This study suggests both that the heritability of major depression is higher in women than in men and that some genetic risk factors for major depression are sex-specific.
These results imply the exist-ence of genes that have different impacts on the risk for major depression in men and women. For example, genes might exist that would alter the risk for depression in women in response to the variable hormonal environment KENDLER, GATZ, GARDNER, ET AL. of the menstrual cycle and pregnancy (27, 28).
OBJECTIVE: Substantial evidence supports the heritability of lifetime major depression. Less clear is whether genetic influences in major depression are more important in women than in men and whether genetic risk factors are the same in the two sexes. It is not known whether genetic effects on major depression are constant across historical cohorts. METHOD: Lifetime major depression was ...
Focus on Research - correlational (twin) study - Kendler et al. (2006) Kendler at al. (2006) conducted a very large Swedish twin study with 15,493 complete twin pairs listed in the national twin registry.
Methods We examine, in twins from a population-based registry, similarity in symptom endorsement in individuals meeting criteria for last-year MD at separate interview waves and in concordant twin pairs. Among individuals with MD, we explore the impact of genetic-temperamental and child adversity risk factors on individual reported symptoms.
Objective: To clarify the magnitude and nature of the association between neuroticism and extroversion and the risk for MD. Design: Longitudinal population-based twin cohort. Setting: General community. Participants: A total of 20 692 members of same-sex twin pairs from the population-based Swedish Twin Registry who completed a self-report ...
Adopting a somewhat similar strategy, Kendler and colleagues (Kendler et al., 1995; Kendler, Walters, & Kessler, 1997) examined a subset of self-reported life events and evaluated the degree of ...
Pia Svedberg. ... In adulthood, heritability of anxiety and major depression was estimated around 40% (Sullivan et al., 2000). Similarly, Kendler et al. (2006) reported that the heritability of ...
Kendler et al (2006) This study can be used for... 1. Genes and human behaviour genetic similarities. Aim. To investigate the heritability of depression. Research method. Correlation (interviews; twin study) Participants.
Despite the strengths of the kindling hypothesis, a review of the research literature reveals inconsistencies and confusion about life stress and its implications for the recurrence of depression.
Study with Quizlet and memorize flashcards containing terms like Aim, Method, Participants and more.
This leaves me with the obvious conclusion that when asked about "one research method used to study genes and behaviour," students would be able to use DZ-MZ twin studies and identify this method as either being quasi-experimental or correlational, because either is a defensible position.
One of the central questions in the study of psychopathology is why certain people develop psychiatric and substance use disorders while others--even those with similar family backgrounds and life experiences--do not. This groundbreaking volume synthesizes the results of a landmark research program to shed new light on the ways genetic and environmental influences weave together to create risk ...
Five studies were included in the meta-analysis: a population-based study of the Virginia Twin Registry ( Kendler et al. 2003 ), a study based on the National Comorbidity Survey ( Krueger 1999 ), a population-based study in the Netherlands ( Vollebergh et al. 2001 ), a population-based study in New Zealand ( Krueger et al. 1998 ), and a study ...
Abstract A foundational question for the discipline of psychiatry is the nature of psychiatric disorders. What kinds of things are they? In this paper, I review and critique three major relevant theories: realism, pragmatism and constructivism. Realism assumes that the content of science is real and independent of human activities. I distinguish two "flavors" of realism: chemistry-based ...
To our knowledge, no research exam- broad measures of the environment (e.g., ines how the relative similarity of peer net- Hettema, Neale, and Kendler 1995; Kendler works of monozygotic and dizygotic twins and Prescott 1999; Kendler et al. 2000a; could account for patterns of behavioral simi- LaBuda, Svikis, and Pickens 1997). There are larity.
AUDs strongly run in families ( Cotton, 1979 ). While twin and adoption studies have unequivocally demonstrated a substantial genetic contribution to the etiology of AUDs (e.g., Cadoret et al., 1987; Cloninger et al., 1981; Goodwin et al., 1973; Heath et al., 1997; Kaij, 1960; Kendler et al., 1997; Kendler et al., 2015; Pickens et al., 1991; Prescott et al., 1999; Sigvardsson et al., 1996 ...
Kendler et al. (1991) Kendler et al. (1991) Aims and hypotheses: To investigate risk factors and genetic inheritance in bulimia nervosa. Method: 2163 female twins. One of the twins in the pair had developed bulimia. Longitudinal. Researchers conducted interviews with the twins to see if the other twin would develop bulimia and if concordance ...
The learning environment is fundamental to higher education and has a profound impact on student outcomes. As conceptualized by Gruppen et al. [], it comprises a complex interplay of physical, social, and virtual factors that shape student engagement, perception, and overall development.Over the last decade, there has been a growing global emphasis on the quality of the learning environment in ...
Study with Quizlet and memorize flashcards containing terms like Category, Kendler et al (2006) - research method and aim, Kendler et al (2006) - procedure and more.
Research One Health Investigation into Mpox and Pets, United States ... Methods and Materials. ... Patton J, et al. characterization of acute-phase humoral immunity to monkeypox: use of immunoglobulin M enzyme-linked immunosorbent assay for detection of monkeypox infection during the 2003 North American outbreak. Clin Diagn Lab Immunol. 2005 ...
Recall, for example, the aforementioned study demonstrating that adopted children come to resemble their adoptive parents' cognitive abilities (Kendler et al., 2015).
Understanding the provenance of megaliths used in the Neolithic stone circle at Stonehenge, southern England, gives insight into the culture and connectivity of prehistoric Britain. The source of ...
High ocean temperatures that caused mass coral bleaching and mortality on the Great Barrier Reef in the past decade are the warmest in 400 years and are the result of human-caused climate change.