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1.
Implement Sci ; 18(1): 12, 2023 05 05.
Artigo em Inglês | MEDLINE | ID: mdl-37147643

RESUMO

BACKGROUND: While prior work has revealed conditions that foster policymakers' use of research evidence, few studies have rigorously investigated the effectiveness of theory-based practices. Specifically, policymakers are most apt to use research evidence when it is timely, relevant, brief, and messaged appropriately, as well as when it facilitates interactive engagement. This study sought to experimentally evaluate an enhanced research dissemination intervention, known as the SciComm Optimizer for Policy Engagement (SCOPE), implemented during the COVID-19 pandemic among US state legislators. METHODS: State legislators assigned to health committees and their staff were randomized to receive the SCOPE intervention. This involved providing academic researchers with a pathway for translating and disseminating research relevant to current legislative priorities via fact sheets emailed directly to officials. The intervention occurred April 2020-March 2021. Research language was measured in state legislators' social media posts. RESULTS: Legislators randomized to receive the intervention, relative to the control group, produced 24% more social media posts containing research language related to COVID-19. Secondary analyses revealed that these findings were driven by two different types of research language. Intervention officials produced 67% more COVID-related social media posts referencing technical language (e.g., statistical methods), as well as 28% more posts that referenced research-based concepts. However, they produced 31% fewer posts that referenced creating or disseminating new knowledge. CONCLUSIONS: This study suggests that strategic, targeted science communication efforts may have the potential to change state legislators' public discourse and use of evidence. Strategic science communication efforts are particularly needed in light of the role government officials have played in communicating about the pandemic to the general public.


Assuntos
COVID-19 , Humanos , Pandemias , Comunicação , Políticas , Pesquisa
3.
Addiction ; 117(8): 2235-2241, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35293062

RESUMO

BACKGROUND AND AIMS: The growing body of research evidence on substance use and substance use disorder (SU/SUD) prevention could be leveraged to strengthen the intended impact of policies that address SU/SUD. The aim of the present study was to explore how research was used in United States federal legislation that emphasized SU/SUD prevention. DESIGN: Using a mixed-methods approach, we assessed whether the use of research predicted a bill's legislative progress. We randomly sampled 10 bills that represented different types of research keywords to examine how research was used in these bills, applying content analysis. SETTING: United States Congress. PARTICIPANTS/CASES: Federal legislation introduced between the 101st and the 114th Congresses (1989-2017; n = 1866). MEASUREMENTS: The quantitative outcome measures were bills' likelihood of passing out of committee and being enacted. Qualitative outcomes included the ways research was used in legislation. FINDINGS: Bills that used any research language were 2.2 times more likely to pass out of committee (OR = 2.18; 95% CI, 1.75, 2.72) and 82% more likely to be enacted (OR = 1.82; 95% CI, 1.23, 2.69) than bills not using research language. Bills using dissemination words were 57% more likely to pass out of committee (OR = 1.57; CI, 1.08, 2.28) and analysis words were 93% more likely (OR = 1.93; 95% CI, 1.51, 2.47) than bills not using dissemination or analysis words. Research was used to (i) define the problem to justify legislative action, (ii) address the problem by providing funding, and (iii) address the problem through industry regulations. However, there was a lack of research use that targets underlying risk and protective factors. CONCLUSIONS: In the US Congress, substance use and substance use disorder prevention bills that use research language appear to be more likely to progress in the legislative cycle than bills that do not, suggesting that legislation using research may be viewed as more credible.


Assuntos
Transtornos Relacionados ao Uso de Substâncias , Política de Saúde , Humanos , Transtornos Relacionados ao Uso de Substâncias/prevenção & controle , Estados Unidos
4.
Am J Public Health ; 111(10): 1768-1771, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34499535

RESUMO

Racial disparities and racism are pervasive public health threats that have been exacerbated by the COVID-19 pandemic. Thus, it is critical and timely for researchers to communicate with policymakers about strategies for reducing disparities. From April through July 2020, across four rapid-cycle trials disseminating scientific products with evidence-based policy recommendations for addressing disparities, we tested strategies for optimizing the reach of scientific messages to policymakers. By getting such research into the hands of policymakers who can act on it, this work can help combat racial health disparities.(Am J Public Health. 2021;111(10):1768-1771. https://doi.org/10.2105/AJPH.2021.306404).


Assuntos
COVID-19/etnologia , Política de Saúde , Disparidades em Assistência à Saúde , Administração em Saúde Pública , Racismo , Comunicação Acadêmica , COVID-19/epidemiologia , Humanos , Pandemias , Formulação de Políticas , SARS-CoV-2 , Estados Unidos/epidemiologia
5.
Proc Natl Acad Sci U S A ; 118(9)2021 03 02.
Artigo em Inglês | MEDLINE | ID: mdl-33593938

RESUMO

Core to the goal of scientific exploration is the opportunity to guide future decision-making. Yet, elected officials often miss opportunities to use science in their policymaking. This work reports on an experiment with the US Congress-evaluating the effects of a randomized, dual-population (i.e., researchers and congressional offices) outreach model for supporting legislative use of research evidence regarding child and family policy issues. In this experiment, we found that congressional offices randomized to the intervention reported greater value of research for understanding issues than the control group following implementation. More research use was also observed in legislation introduced by the intervention group. Further, we found that researchers randomized to the intervention advanced their own policy knowledge and engagement as well as reported benefits for their research following implementation.


Assuntos
Formulação de Políticas , Ciência/legislação & jurisprudência , Tomada de Decisões , Medicina Baseada em Evidências/legislação & jurisprudência , Política de Saúde/legislação & jurisprudência , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto/legislação & jurisprudência
6.
Am Psychol ; 76(8): 1307-1322, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-35113595

RESUMO

Key to bringing psychological science to bear on public policy is developing scholars' engagement and rapport with policymakers. Scholars benefit from support navigating the policy arena in ways that strengthen their independent policy engagement. This study presents findings from a randomized controlled trial of the Research-to-Policy Collaboration (RPC) model, which develops and trains a rapid response network of researchers to respond to legislative requests for scientific evidence. Researchers were surveyed on their concerns about how policymakers support or use scientific research, how they engaged with policymakers, and perceived benefits to their research. Researchers randomized to the RPC reported fewer concerns about policymakers' support and use of research, greater involvement in supporting policymakers' understanding of problems (i.e., conceptual use), and more responses to external prompts for their involvement. Subgroup analyses examined how experiences differed for those identifying as Black, Indigenous, or Person of Color (BIPOC). At baseline, BIPOC-identifying researchers perceived greater costs of policy engagement and reported less involvement in supporting conceptual or instrumental uses of research than White-identifying researchers. Subsequent to the RPC, BIPOC-identifying researchers in the intervention group were reportedly less concerned about federal support of science, more engaged in supporting conceptual uses of research, and perceived greater benefits of policy engagement for their research than BIPOC-identifying researchers in the control group. These differences were not observed among White-identifying researchers. Findings are discussed in light of disparities experienced by marginalized scholars, the ways in which resources and supports may counteract these challenges, and possible strategies to strengthen public psychology overall. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Pessoal Administrativo , Pesquisadores , Humanos , Política Pública
7.
Public Health Genomics ; 23(5-6): 171-183, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33147585

RESUMO

BACKGROUND: Psychiatric genetics has had limited success in translational efforts. A thorough understanding of the present state of translation in this field will be useful in the facilitation and assessment of future translational progress. PURPOSE: A narrative literature review was conducted. Combinations of 3 groups of terms were searched in EBSCOhost, Google Scholar, and PubMed. The review occurred in multiple steps, including abstract collection, inclusion/exclusion criteria review, coding, and analysis of included papers. RESULTS: One hundred and fourteen articles were analyzed for the narrative review. Across those, 4 bottlenecks were noted that, if addressed, may provide insights and help improve and increase translation in the field of psychiatric genetics. These 4 bottlenecks are emphasizing linear translational frameworks, relying on molecular genomic findings, prioritizing certain psychiatric disorders, and publishing more reviews than experiments. CONCLUSIONS: These entwined bottlenecks are examined with one another. Awareness of these bottlenecks can inform stakeholders who work to translate and/or utilize psychiatric genetic information. Potential solutions include utilizing nonlinear translational frameworks as well as a wider array of psychiatric genetic information (e.g., family history and gene-environment interplay) in this area of research, expanding which psychiatric disorders are considered for translation, and when possible, conducting original research. Researchers are urged to consider how their research is translational in the context of the frameworks, genetic information, and psychiatric disorders discussed in this review. At a broader level, these efforts should be supported with translational efforts in funding and policy shifts.


Assuntos
Genética Comportamental/métodos , Transtornos Mentais/genética , Pesquisa Translacional Biomédica/métodos , Interação Gene-Ambiente , Humanos , Biologia Molecular , Medicina de Precisão/métodos , Projetos de Pesquisa
8.
Curr Top Med Chem ; 20(7): 585-597, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32003694

RESUMO

BACKGROUND: The differential utility of neurocognitive impulsivity and externalizing/ internalizing traits as putative endophenotypes for dependence on heroin vs. amphetamine is unclear. OBJECTIVE: This exploratory study aims to determine: (1) whether neurocognitive impulsivity dimensions and externalizing/internalizing traits are correlated between siblings discordant for heroin and amphetamine dependence; and (2) which of these associations are common across substances and which are substance- specific. METHODS: Pearson correlations between individuals with 'pure' heroin and amphetamine dependence and their unaffected biological siblings (n = 37 heroin sibling pairs; n = 30 amphetamine sibling pairs) were run on 10 neurocognitive measures, 6 externalizing measures, and 5 internalizing measures. Sibling pair effects were further examined using regression. RESULTS: Siblings discordant for heroin dependence were significantly correlated on delay aversion on the Cambridge Gambling Task, risk-taking on the Balloon Analogue Risk Task, sensation seeking, and hopelessness. Siblings discordant for amphetamine dependence were significantly correlated on the quality of decision-making on the Cambridge Gambling Task, discriminability on the Immediate Memory Task, commission errors on the Go/No Go Task, trait impulsivity, ADHD and anxiety sensitivity. CONCLUSION: Dimensions of impulsivity and externalizing/internalizing traits appear to aggregate among siblings discordant for substance dependence. Risk-taking propensity, sensation seeking and hopelessness were specific for heroin sibling pairs. Motor/action impulsivity, trait impulsivity, and anxiety sensitivity were specific to amphetamine sibling pairs. Decisional/choice impulsivity was common across both heroin and amphetamine sibling pairs. These findings provide preliminary evidence for the utility of neurocognitive impulsivity and externalizing/ internalizing traits as candidate endophenotypes for substance dependence in general and for substance-specific dependencies.


Assuntos
Anfetamina/efeitos adversos , Comportamento Aditivo/psicologia , Endofenótipos/metabolismo , Heroína/efeitos adversos , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adulto , Análise de Variância , Cognição , Tomada de Decisões , Feminino , Humanos , Comportamento Impulsivo , Testes de Estado Mental e Demência , Inventário de Personalidade , Medição de Risco , Irmãos/psicologia
9.
Psychol Serv ; 17(1): 118-126, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30299149

RESUMO

Little research exists into the trends associated with on-campus service utilization for mental health concerns of college students. Rates of broad service utilization exist, but no published study has examined the direct relationship between a range of common mental health symptoms and on-campus service utilization. The aims of the present study are to explore (1) which common mental health concerns are associated with specific on-campus service utilization in undergraduate students and (2) whether endorsement of more mental health concerns will predict a higher number of services utilized. Data were utilized from 3,734 undergraduates at a large (more than 20,000 undergraduates), urban university (Mage = 19.94 years, SD = 0.55 years; female = 66%). Four on-campus services (University Counseling Services, University Health Services, The Wellness Resource Center, and Disability Support Services) were regressed onto mental health concerns associated with symptoms of three disorders (anxiety, depression, alcohol use disorder [AUD]) and two mental health risk factors (stressful life events [SLEs], antisocial behaviors [ASBs]). AUD symptoms predicted the most overall and specific service utilization, followed by depression symptoms and SLEs. Anxiety symptoms and ASBs were not significant predictors when combined with other variables. This is the first study to investigate trends specific to on-campus college student service utilization. Findings will be helpful to mental health professionals on similar college campuses by providing insight into programming and outreach initiatives for these or related services. (PsycINFO Database Record (c) 2020 APA, all rights reserved).


Assuntos
Sintomas Comportamentais , Utilização de Instalações e Serviços/estatística & dados numéricos , Transtornos Mentais , Serviços de Saúde Mental/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Serviços de Saúde para Estudantes/estatística & dados numéricos , Estudantes/estatística & dados numéricos , Universidades/estatística & dados numéricos , Adolescente , Adulto , Sintomas Comportamentais/diagnóstico , Sintomas Comportamentais/terapia , Feminino , Humanos , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/terapia , Adulto Jovem
10.
Addiction ; 114(1): 81-91, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30063276

RESUMO

AIMS: We tested whether parental alcohol use disorder (AUD) predicted adult offspring's likelihood of marriage and marriage to an AUD-affected spouse; whether effects differed as a function of the sex or number of affected parents; and whether they were robust to confounders. DESIGN: Sex-stratified Cox and logistic regression models. SETTING: Sweden. PARTICIPANTS: A total of 1 171 070 individuals (51.40% male) born 1965-75. MEASUREMENTS: Obtained from legal, medical and pharmacy registries. Predictor was parent AUD. Outcomes were marriage and spouse AUD. Adjustments included offspring birth year and AUD; and parental education, marriage, divorce, criminal behavior and drug abuse. FINDINGS: Male and female offspring of AUD-affected parents were more likely to marry at younger ages (< 25), illustrative unadjusted hazard ratio (HR)age 20  = 1.22 (1.17, 1.28) and 1.34 (1.20, 1.39) and were less likely to marry at older ages (> 25), HRage 30  = 0.79 (0.78, 0.81) and 0.82 (0.81, 0.84). Parental AUD was associated with higher odds of having an affected spouse for males and females, odds ratio (OR) = 1.47 (1.38, 1.57) and 1.63 (1.56, 1.70). Effects were more pronounced for those with two versus one AUD-affected parent and adjustments attenuated effects negligibly. Daughters of affected mothers (versus fathers) were more likely to have AUD-affected husbands, OR = 1.68 (1.54, 1.84) versus 1.56 (1.48, 1.64), while there was no difference in sons. CONCLUSIONS: In Sweden, parental alcohol use disorder (AUD) is associated with a higher probability of marriage at younger ages, a lower probability of marriage at older ages and a higher likelihood of marriage to an affected spouse compared with no parental AUD. Most of these effects become stronger when the number of AUD-affected parents increases from one to two, and most effects hold after controlling for parents' socio-economic status, marital history, other externalizing disorders and offspring's own AUD status. Daughters of affected mothers are more likely to have an affected spouse.


Assuntos
Alcoolismo , Filho de Pais com Deficiência , Casamento/estatística & dados numéricos , Cônjuges/estatística & dados numéricos , Adulto , Filhos Adultos , Fatores Etários , Feminino , Humanos , Modelos Logísticos , Masculino , Razão de Chances , Modelos de Riscos Proporcionais , Fatores Sexuais , Suécia , Adulto Jovem
11.
Front Psychol ; 9: 2296, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30534101

RESUMO

Background: The Substance Use Risk Profile Scale (SURPS) is a 23-item self-report questionnaire that assesses four well-validated personality risk factors for substance misuse (Impulsivity, Sensation Seeking, Anxiety Sensitivity, and Hopelessness). While the SURPS has been used extensively with adolescents at risk for substance dependence, its properties with adult substance-dependent populations have been understudied. Further, the validity of the Bulgarian version of the SURPS has not been evaluated. The aims of the present study were to examine the factor structure of the Bulgarian version of the SURPS, its psychometric properties, and its ability to distinguish individuals with substance dependence from healthy controls. Methods: Participants included 238 individuals ages 18 to 50 (45% female): 36 "pure" (i.e., mono-substance dependent) heroin users, 34 "pure" amphetamine users, 32 polysubstance users, 64 controls with no history of substance dependence, 43 unaffected siblings of heroin users, and 29 unaffected siblings of amphetamine users. We explored the factor structure of the Bulgarian version of the SURPS with confirmatory factor analyses, examined its reliability and validity, and tested for group differences between substance dependent and non-dependent groups. Results: Confirmatory factor analyses (CFA) replicated the original four-factor model of the SURPS. The four subscales of the SURPS demonstrated good internal consistency (Cronbach's alphas ranged from 0.71 to 0.85) and adequate concurrent validity. Significant group differences were found on the Impulsivity and Sensation Seeking subscales, with the three substance dependent groups scoring higher than controls. Conclusions: The SURPS is a valid instrument for measuring personality risk for substance use disorders in the Bulgarian population. The Bulgarian version of the SURPS demonstrates adequate to good reliability, concurrent validity, and predictive validity. Its ability to distinguish between groups with and without a history of substance dependence was specific to externalizing traits such as Impulsivity and Sensation Seeking, on which opiate, stimulant, and polysubstance dependent individuals scored higher than non-dependent controls.

12.
Insects ; 9(4)2018 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-30563191

RESUMO

By 2030, ten percent of earth's landmass will be occupied by cities. Urban environments can be home to many plants and animals, but surveying and estimating biodiversity in these spaces is complicated by a heterogeneous built environment where access and landscaping are highly variable due to human activity. Citizen science approaches may be the best way to assess urban biodiversity, but little is known about their relative effectiveness and efficiency. Here, we compare three techniques for acquiring data on butterfly (Lepidoptera: Rhopalocera) species richness: trained volunteer Pollard walks, Malaise trapping with expert identification, and crowd-sourced iNaturalist observations. A total of 30 butterfly species were observed; 27 (90%) were recorded by Pollard walk observers, 18 (60%) were found in Malaise traps, and 22 (73%) were reported by iNaturalist observers. Pollard walks reported the highest butterfly species richness, followed by iNaturalist and then Malaise traps during the four-month time period. Pollard walks also had significantly higher species diversity than Malaise traps.

13.
Insects ; 8(2)2017 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-28524117

RESUMO

Data collection, storage, analysis, visualization, and dissemination are changing rapidly due to advances in new technologies driven by computer science and universal access to the internet. These technologies and web connections place human observers front and center in citizen science-driven research and are critical in generating new discoveries and innovation in such fields as astronomy, biodiversity, and meteorology. Research projects utilizing a citizen science approach address scientific problems at regional, continental, and even global scales otherwise impossible for a single lab or even a small collection of academic researchers. Here we describe eButterfly an integrative checklist-based butterfly monitoring and database web-platform that leverages the skills and knowledge of recreational butterfly enthusiasts to create a globally accessible unified database of butterfly observations across North America. Citizen scientists, conservationists, policy makers, and scientists are using eButterfly data to better understand the biological patterns of butterfly species diversity and how environmental conditions shape these patterns in space and time. eButterfly in collaboration with thousands of butterfly enthusiasts has created a near real-time butterfly data resource producing tens of thousands of observations per year open to all to share and explore.

14.
Addiction ; 112(8): 1378-1385, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28345295

RESUMO

AIMS: To examine whether genetic influences on the development of alcohol use disorders (AUD) among men during emerging adulthood through mid-adulthood are stable or dynamic. DESIGN: A twin study modeling developmental changes in the genetic and environmental influences on AUD during three age periods (18-25, 26-33 and 33-41) as a Cholesky decomposition. SETTING: Sweden. PARTICIPANTS: Swedish male twin pairs (1532 monozygotic and 1940 dizygotic) and 66 033 full male sibling pairs born less than 2 years apart. MEASUREMENTS: AUD was identified based on Swedish medical and legal registries. FINDINGS: The best-fitting model included additive genetic and unique environmental factors, with no evidence for shared environmental factors. Although the total heritability was stable over time, there were two major genetic factors contributing to AUD risk, one beginning at ages 18-25 with a modest decline in importance over time [0.84; confidence interval (CI) = 0.83-0.88], and another of less impact beginning at ages 26-33 with a modest increase in importance by ages 33-41 (0.31; CI = 0.05-0.47). CONCLUSIONS: The heritability of alcohol use disorders among Swedish men appears to be stable among three age periods: 18-25 years, 26-33 years, and 33-41 years. Two sets of genetic risk factors contribute to alcohol use disorders risk, with one originating during the ages 18-25 years and another coming online at 26-33 years, providing support for the developmentally dynamic hypothesis.


Assuntos
Alcoolismo/epidemiologia , Alcoolismo/genética , Interação Gene-Ambiente , Gêmeos/genética , Adolescente , Adulto , Fatores Etários , Humanos , Estudos Longitudinais , Masculino , Sistema de Registros , Fatores de Risco , Irmãos , Suécia/epidemiologia , Adulto Jovem
15.
Policy Insights Behav Brain Sci ; 4(2): 186-193, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29430518

RESUMO

Alcohol misuse, one of today's greatest public health challenges, is a developmentally dynamic, complex behavior at the intersection of genetic and environmental influences. This review examines such influences from a behavior genetics perspective and discusses implications for public policy. Alcohol misuse is moderately heritable with genetic influences accounting for around 50% of its variance, but to date few specific genes have been identified. However, numerous environmental and social factors moderate genetic risk, including parents, peers, romantic partners, family dynamics, employment, laws, and cultural influences. These moderating factors change in salience across development, and, accordingly, no one-size-fits-all approach is suitable for reducing alcohol misuse at a large scale. We provide examples of some effective prevention and intervention programs and discuss a framework for using the behavior genetics evidence to inform future public policy efforts.

16.
Alcohol Clin Exp Res ; 41(1): 149-155, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27918840

RESUMO

BACKGROUND: Resilience has been shown to be protective against alcohol use disorders (AUDs), but the magnitude and nature of the relationship between these 2 phenotypes are not clear. The aim of this study was to examine the strength of this relationship and the degree to which it results from common genetic or common environmental influences. METHODS: Resilience was assessed on a 9-point scale during a personal interview in 1,653,721 Swedish men aged 17 to 25 years. AUD was identified based on Swedish medical, legal, and pharmacy registries. The magnitude of the relationship between resilience and AUD was examined using logistic regression. The extent to which the relationship arises from common genetic or common environmental factors was examined using a bivariate Cholesky decomposition model. RESULTS: The 5 single items that comprised the resilience assessment (social maturity, interest, psychological energy, home environment, and emotional control) all reduced risk for subsequent AUD, with social maturity showing the strongest effect. The linear effect by logistic regression showed that a 1-point increase on the resilience scale was associated with a 29% decrease in odds of AUD. The Cholesky decomposition model demonstrated that the resilience-AUD relationship was largely attributable to overlapping genetic and shared environmental factors (57 and 36%, respectively). CONCLUSIONS: Resilience is strongly associated with a reduction in risk for AUD. This relationship appears to be the result of overlapping genetic and shared environmental influences that impact resilience and risk of AUD, rather than a directly causal relationship.


Assuntos
Transtornos Relacionados ao Uso de Álcool/epidemiologia , Transtornos Relacionados ao Uso de Álcool/psicologia , Resiliência Psicológica , Meio Social , Gêmeos/psicologia , Adolescente , Adulto , Transtornos Relacionados ao Uso de Álcool/diagnóstico , Humanos , Masculino , Sistema de Registros , Fatores de Risco , Suécia/epidemiologia , Adulto Jovem
17.
Twin Res Hum Genet ; 19(1): 1-9, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26693596

RESUMO

Excessive internet use has been linked to psychopathology. Therefore, understanding the genetic and environmental risks underpinning internet use and their relation to psychopathology is important. This study aims to explore the genetic and environmental etiology of internet use measures and their associations with internalizing disorders and substance use disorders. The sample included 2,059 monozygotic (MZ) and dizygotic (DZ) young adult twins from the Brisbane Longitudinal Twin Study (BLTS). Younger participants reported more frequent internet use, while women were more likely to use the internet for interpersonal communication. Familial aggregation in 'frequency of internet use' was entirely explained by additive genetic factors accounting for 41% of the variance. Familial aggregation in 'frequency of use after 11 pm', 'using the internet to contact peers', and 'using the internet primarily to access social networking sites' was attributable to varying combinations of additive genetic and shared environmental factors. In terms of psychopathology, there were no significant associations between internet use measures and major depression (MD), but there were positive significant associations between 'frequency of internet use' and 'frequency of use after 11 pm' with social phobia (SP). 'Using the internet to contact peers' was positively associated with alcohol abuse, whereas 'using the internet to contact peers' and 'using the internet primarily to access social networking sites' were negatively associated with cannabis use disorders and nicotine symptoms. Individual differences in internet use can be attributable to varying degrees of genetic and environmental risks. Despite some significant associations of small effect, variation in internet use appears mostly unrelated to psychopathology.


Assuntos
Interação Gene-Ambiente , Internet , Transtornos Mentais/psicologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adolescente , Adulto , Alcoolismo/genética , Alcoolismo/psicologia , Comportamento Aditivo/genética , Comportamento Aditivo/psicologia , Transtorno Depressivo Maior/genética , Transtorno Depressivo Maior/psicologia , Feminino , Humanos , Estilo de Vida , Estudos Longitudinais , Masculino , Transtornos Mentais/genética , Transtornos Fóbicos/genética , Transtornos Fóbicos/psicologia , Fatores de Risco , Transtornos Relacionados ao Uso de Substâncias/genética , Gêmeos Dizigóticos/genética , Gêmeos Monozigóticos/genética , Adulto Jovem
18.
J Stud Alcohol Drugs ; 76(3): 414-8, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25978827

RESUMO

OBJECTIVE: The gene GRM8, a metabotropic glutamate receptor, has emerged as a gene of interest for its possible role in the development of alcohol dependence, with evidence of association with an electrophysiological endophenotype and level of response to alcohol as well as suggestive evidence of association with alcohol dependence. METHOD: The present study further investigated the association between GRM8 and alcohol dependence symptom counts among young adults using a new sample of individuals collected as part of the prospective sample (ages 18-26 years; N = 842) from the Collaborative Study on the Genetics of Alcoholism (COGA). RESULTS: Two single-nucleotide polymorphisms were significantly associated with alcohol dependence in European Americans using the Nyholt corrected p value of .007: rs886003 (ß = -.212, p = .0002) and rs17862325 (ß = -.234, p < .0001), but not in African Americans, likely because of the lower power to detect association in this group. CONCLUSIONS: These results further implicate the role of glutamate receptor genes such as GRM8 in the development of alcohol dependence.


Assuntos
Alcoolismo/genética , Receptores de Glutamato Metabotrópico/genética , Adolescente , Adulto , Negro ou Afro-Americano/genética , Alcoolismo/diagnóstico , Alcoolismo/epidemiologia , Endofenótipos , Feminino , Humanos , Masculino , Polimorfismo de Nucleotídeo Único , Estudos Prospectivos , População Branca/genética , Adulto Jovem
19.
Ecol Evol ; 4(23): 4543-52, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25512850

RESUMO

Checkerspot butterflies in the genera Euphydryas and Chlosyne exhibit phenotypic polymorphisms along a well-defined latitudinal and elevational gradient in California. The patterns of phenotypic variation in Euphydryas chalcedona, Chlosyne palla, and Chlosyne hoffmanni suggest a mimetic relationship; in addition, the specific patterns of variation in C. palla suggest a female-limited polymorphic mimicry system (FPM). However, the existence of polymorphic models runs counter to predictions of mimicry theory. Palatability trials were undertaken to assess whether or not the different color morphs of each species were distasteful or toxic to a generalized avian predator, the European starling (Sturnus vulgaris). Results indicate that the black morph of E. chalcedona is distasteful, but not toxic, to predators, while the red morph is palatable. C . hoffmanni and both color morphs of C. palla are palatable to predators. Predators that learn to reject black E. chalcedona also reject black C. palla, suggesting that the latter is a FPM of the former. C. hoffmanni does not appear to be involved in this mimetic relationship.

20.
Mol Phylogenet Evol ; 79: 69-81, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24952320

RESUMO

The butterfly tribe Melitaeini [Nymphalidae] contains numerous species that have been the subjects of a wide range of biological studies. Despite numerous taxonomic revisions, many of the evolutionary relationships within the tribe remain unresolved. Utilizing mitochondrial and nuclear gene regions, we produced a time-calibrated phylogenetic hypothesis for 222 exemplars comprising at least 178 different species and 21 of the 22 described genera, making this the most complete phylogeny of the tribe to date. Our results suggest that four well-supported clades corresponding to the subtribes Euphydryina, Chlosynina, Melitaeina, and Phyciodina exist within the tribe. This analysis is also represents the most complete phylogenetic analysis of the Chlosynina to date, and includes several genera and species that have been previously excluded from published phylogenies of this group.


Assuntos
Evolução Biológica , Borboletas/classificação , Filogenia , Animais , Teorema de Bayes , Modelos Genéticos , Análise de Sequência de DNA
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