Hoganemery5698

Parent-child similarity is a function of genetic and environmental transmission. In addition, genetic effects not transmitted to offspring may drive parental behavior, thereby affecting the rearing environment of the child. Measuring genetic proclivity directly, through polygenic risk scores (PRSs), provides a way to test for the effect of nontransmitted parental genotype, on offspring outcome, termed a genetic nurture effect-in other words, if and how parental genomes might affect their children through the environment. The current study used polygenic risk scores for smoking initiation, cigarettes per day, and drinks per week to predict substance use in a sample of 3,008 twins, assessed prospectively from age 17-29, and their parents, from the Minnesota Center for Twin and Family Research. Mixed-effects models were used to test for a genetic nurture effect whereby parental PRSs predict offspring tobacco and alcohol use after statistically adjusting for offspring's own PRS. Parental smoking initiation PRS predicted offspring cigarettes per day at age 24 (β = .103, 95% CI [.03, .17]) and alcohol use at age 17 (β = .091, 95% CI [.04, .14]) independent of shared genetics. There was also a suggestive independent association between the parent PRS and offspring smoking at age 17 (β = .096; 95% CI [.02, .17]). Mediation analyses provided some evidence for environmental effects of parental smoking, alcohol use, and family socioeconomic status. These findings, and more broadly the molecular genetic method used, have implications on the identification of environmental effects on developmental outcomes such as substance use. (PsycInfo Database Record (c) 2021 APA, all rights reserved).Neighborhood social processes may have important implications for parenting processes and ethnic-racial identity (ERI) processes and content in adolescence. Past research suggests that adolescents whose parents engaged in more cultural socialization, an important aspect of parental racial socialization, had higher levels of ERI processes and content. Parenting, however, is also situated within neighborhood contexts and can be influenced by resources available in neighborhoods. For example, having neighbors who share mutual values, trust one another, and appreciate/celebrate one's heritage culture may be a resource that promotes parents' efforts to engage in cultural socialization. We prospectively examined (from x¯age = 10.9-15.8 years) a model in which U.S. Mexican parents' perceptions of neighborhood social and cultural cohesion supported parents' engagement in higher levels of cultural socialization and in turn promoted adolescents' ethnic-racial identity processes and content. We tested a longitudinal mediation model with a sample of 749 U.S. Mexican adolescents (30% Mexico born; 48.9% female) and their parents. Mother-adolescent models suggest mothers' perception of neighborhood social and cultural cohesion in late childhood promoted middle adolescents' ERI affirmation via intermediate increases in maternal cultural socialization. Similar patterns were observed for ERI resolution, but only for adolescents whose mothers were born in the United States. We did not find evidence for mediation in the father-adolescent models. Findings are discussed in the context of the promoting nature of socially and culturally supportive neighborhood environments for U.S. Mexican families and adolescents. (PsycInfo Database Record (c) 2021 APA, all rights reserved).Most U.S. children grow up with siblings. Theory and prior work suggest that older siblings are important sources of gender-related information and socialization. However, few studies have investigated the patterns of these associations longitudinally across early childhood. The present study examines the influence of sibling presence and gender composition on the trajectory of early gender-typed behavior and appearance in children from age 2 through 6 in a diverse sample of Dominican American (36%), African American (33%), and Mexican American (31%) mother-child dyads (N = 232; 112 girls, 120 boys) from low-income households in New York City (M = $20,459, SD = 14,632). Results found that children without older siblings spent more time playing with counterstereotypical toys and their mothers' reports indicated similar behavior over the past month (e.g., a girl playing with toy vehicles and balls; a boy playing with toy kitchen sets and dolls) than children with older siblings. Further, children with at least one other-gender sibling (e.g., a girl with an older brother) played more frequently with counterstereotypical toys compared with children with only same-gender siblings (e.g., a girl with only older sisters). Results on the relation between siblings and gender appearance were mixed. Older siblings may thus influence early trajectories of important gender domains (e.g., toy play), which can have various long-term implications for developing skills and interests. (PsycInfo Database Record (c) 2021 APA, all rights reserved).Impaired procedural learning has been suggested as a possible cause of developmental dyslexia (DD) and developmental language disorder (DLD). We evaluate this theory by performing a series of meta-analyses on evidence from the six procedural learning tasks that have most commonly been used to test this theory the serial reaction time, Hebb learning, artificial grammar and statistical learning, weather prediction, and contextual cuing tasks. Studies using serial reaction time and Hebb learning tasks yielded small group deficits in comparisons between language impaired and typically developing controls (g = -.30 and -.32, respectively). find more However, a meta-analysis of correlational studies showed that the serial reaction time task was not a reliable correlate of language-related ability in unselected samples (r = .03). Larger group deficits were, however, found in studies using artificial grammar and statistical learning tasks (g = -.48) and the weather prediction task (g = -.63). Possible reasons for the discrepancy in results from different tasks that all purportedly measure procedural learning are highlighted. We conclude that current data do not provide an adequate test of the theory that a generalized procedural learning deficit is a causal risk factor for developmental dyslexia or developmental language disorder. (PsycInfo Database Record (c) 2021 APA, all rights reserved).Concurrent learning of adjacent and nonadjacent dependencies has been shown in adults only. This study extended this line of research by examining dependency-specific learning for both adjacent and nonadjacent dependencies concurrently in both adults and children. Seventy adults aged 18 to 64 (40 women, 30 men; Experiment 1) and 64 children aged 10 to 11 years (40 girls, 24 boys; Experiment 2) were tested with a new serial reaction time (SRT) task in which they were trained for 5-8 min on materials comprising equally probable adjacent and nonadjacent dependencies. They were then asked to discriminate between trained and untrained dependencies in a familiarity task. Both adults and children showed implicit concurrent learning of both adjacent and nonadjacent dependencies. The two dependency types were learned to the same extent. However, adults showed a rapid, sustainable, and dependency-specific sensitivity throughout the SRT task while children only showed a dependency-specific sensitivity to violations of expectations after exposure. When the two groups were statistically compared, only adults showed a dependency-specific learning effect after exposure. These findings are in line with the age-related improvement model of dependency learning. (PsycInfo Database Record (c) 2021 APA, all rights reserved).Text reading fluency refers to the ability to read connected texts with accuracy, speed, and expression (prosody), and has garnered substantial attention as an important skill for reading comprehension. However, two fundamental questions remain-the dimensionality of text reading fluency including text reading efficiency (accuracy and speed) and reading prosody, and the directionality of the relation between text reading fluency and reading comprehension. These questions were addressed using longitudinal data from Grade 1 (Mage = 6.36 years) to Grade 3 (Mage = 8.34 years). Majority of children were White (approximately 60%) and African American (26%) with 39% to 52% from low-SES backgrounds, depending on the grade. Text reading fluency, word reading, listening comprehension, and reading comprehension were measured. Results from confirmatory factor analysis revealed that text reading fluency is a multidimensional construct with a trifactor structure, which has a general factor that captures common ability across text reading efficiency and reading prosody as well as local and specific factors that are unique beyond the general factor. However, the general factor was the most reliable factor, whereas local and specific factors were not reliable. The directionality of the relation between text reading fluency and reading comprehension was addressed by examining two competing structural equation models-text-reading-fluency-as-a-predictor/mediator model and text-reading-fluency-as-an-outcome model-and data supported the former. These results indicate that text reading fluency is a multidimensional construct, and it acts as a predictor, mediating the relations of word reading and listening comprehension to reading comprehension. (PsycInfo Database Record (c) 2021 APA, all rights reserved).We examined the influence of prior expectations on 4- to 10-year-olds' and adults' preferences and emotions following an undesirable outcome (N = 205; 49% female, 51% male; 6% Asian, 1% Black, 13% Hispanic/Latino [non-White], 57% White, 18% multiracial, and 5% another race/ethnicity; 75% with a college-educated parent). Participants attempted to win a chance game with multiple prizes; the worst prize being a pencil. The game was rigged so that half of the participants lost, and the other half won. Regardless of the game outcome, everyone received a pencil. For winning participants (high-expectation condition), the pencil was worse than the prize they expected; whereas for losing participants (low-expectation condition), the pencil was better than the "nothing" they expected. Participants rated how much they liked and felt about the pencil preoutcome, postoutcome, when imagining having held an alternative prior expectation, and after learning that everyone received a pencil. Results showed that 6- to 10-year-olds and adults with low (vs. high) expectations liked the pencil more, with emotion ratings trending in the same direction. Prior expectations did not influence younger children's affective experiences. More participants with low (vs. high) expectations also expressed a positive outlook about the pencil, which increased with age and correlated with higher postoutcome emotions. More adults than children explained emotions as caused by thoughts, and only adults consistently reasoned that their preferences and emotions would have differed had they held alternative prior expectations. Once knowing that everyone received a pencil, 6- to 10-year-olds and adults liked the pencil more and felt better. (PsycInfo Database Record (c) 2021 APA, all rights reserved).