This study examined both the substance-specific and nonspecific, or generalized, effects of parent substance use, attitudes toward use, and behavior regarding use on adolescent initiation and maintenance of alcohol, cigarettes, and marijuana use. Data from 645 target adolescents and their parent(s) regarding their own use and parents' attitude, cautionary statements, and negative consequences were used to predict both the onset of using each substance and the transition from use to nonuse during the following year. Results indicated that not only did parents' influence specific to a given substance affect adolescent use of that same substance, but parents `nonspecific or generalized influence predicted the onset and maintenance of other substance use. Furthermore, parent modeling, attitude, cautionary statements, and consequences were all significant predictors of adolescent initiation and maintenance of substance use. Interactions of the parental influence variables with gender, age, and parents' marital status were found. Implications of these findings for intervention efforts are discussed.
Background: Mild cognitive impairment (MCI) is characterised by memory impairment that is greater than would be expected for an individual's age and educational background. Differentiating MCI from normal cognition in ageing is a compelling social, clinical, and scientific concern. Of those with MCI, 50% progress to Alzheimer's dementia within 5 years, while many individuals remain stable or return to normal functioning. Importantly, early identification of MCI has important implications for speech-language pathology intervention. Aims: The purpose of this study was to investigate whether performance on a complex elicited discourse production task differentiated individuals with MCI from those with normal cognition. The variables of interest were discourse length, complexity, and quality.Methods & Procedures: Eight individuals with MCI and eight age-and gender-matched controls were tested with the Mini-Mental State Exam (MMSE), Logical Memory Subtest (LMS) of the Weschsler Memory Scale, and the Boston Naming Test (BNT). For the experimental task, each participant provided a complex, elicited discourse sample that was unconstrained in terms of discourse genre, in response to verbal instructions. Outcomes & Results: The MMSE and LMS scores differentiated the groups in the expected direction, with the control group outperforming the MCI group. The groups performed comparably on the BNT. Performance on the experimental discourse production task distinguished the groups on measures of length and quality, but not in syntactic complexity. Conclusions: These findings suggest that performance on a complex elicited discourse production task uncovers subtle differences in the abilities of individuals with MCI, such that measures of length and quality differentiated them from individuals with normal cognition.
Performance on the Rey‐Auditory Verbal Learning (R‐AVL) and Rey‐Osterrieth Complex Figure Design (R‐O CFD) tests was examined in patients (N = 94) with dementia of the Alzheimer's type (DAT) and closed head injury (CHI). On the R‐AVL, DAT patients demonstrated considerably greater impairment than CHI patients, along with a flat learning/retention curve that showed negligible improvement with repeated trials, recency effects only, and an excessive number of word intrusions (confabulation) on the recognition trial. CHI patients demonstrated both a recency and primacy effect along with improvement over repeated trials (positive slope learning curve). Both groups demonstrated impairment R‐O CFD recall; the DAT group again displayed substantially greater copying and recall deficits. Clinical guidelines are given for the use of the R‐AVL and R‐O CFD for these two patient populations.
This study examined the effects of text genre and repeated reading on written language comprehension in younger (M = 21 years) and older (M = 72 years) healthy adults (N = 54). Participants verified four text-based statements (i.e., explicit, implicit, contradictory, and elaborated) after reading expository, narrative, and procedural texts. Verification accuracy was comparable for both age groups; however, text genre, statement-type, and repeated reading produced significant effects. Expository passages, explicit and implicit statements, and repeated reading yielded superior results. Procedural passages and contradictory and elaborated statements yielded less accurate results. Statement-types invoked multiple levels of cognitive representation across text genres and age groups. Overall, reading time was significantly faster for younger adults, and reading times were significantly faster for both age groups during the repeated reading trial. Text genre also influenced reading time, with expository passages read faster than narrative and procedural passages. These findings suggest the appreciable influences of text genre and repeated reading on measures of text processing and comprehension in healthy adults, irrespective of age.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.