The present study explored whether semantic and motor systems are functionally interwoven via the use of a dual-task paradigm. According to embodied language accounts that propose an automatic and necessary involvement of the motor system in conceptual processing, concurrent processing of hand-related information should interfere more with hand movements than processing of unrelated body-part (i.e.
View Article and Find Full Text PDFPremise Of The Study: New microsatellite primers were developed for testing genetic differentiation within Nothoceros aenigmaticus and their potential use in other Nothoceros species. The microsatellites are designed to investigate partitioning of genetic variation in a taxon with a peculiar sex allopatry in the southern Appalachian Mountains and relationships with conspecific sexual populations from Mexico.
Methods And Results: We used two methods for microsatellite development: an enriched library and second-generation shotgun sequence reads.
The Social Vulnerability Scale (SVS), a 22-item informant report of vulnerability to exploitation and, in particular, financial exploitation of older adults, was administered to 266 respondents who assessed the social vulnerability of a significant other aged 50 years or over, either a person with dementia or other neurological condition (n = 116), or a healthy adult (n = 150). Exploratory factor analysis in the combined sample revealed a 15-item two-factor solution labeled gullibility and credulity. Stability in factor structure was established in an independent sample (n = 123) using confirmatory factor analysis, and sound reliability (internal consistency) and validity (known-groups) were demonstrated.
View Article and Find Full Text PDFFew studies have examined the effectiveness of cognitive behavior therapy to manage seizures and improve psychosocial functioning in older adults with epilepsy. This study evaluated the efficacy of a 6 week group CBT program in community dwelling adults with epilepsy who were aged over 60 years. A total of 37 participants were randomly assigned to either a CBT group or a control group.
View Article and Find Full Text PDFNeuropsychol Dev Cogn B Aging Neuropsychol Cogn
November 2010
Clinical assessment of older people at heightened risk of financial exploitation (also termed social vulnerability) is a difficult task. There are a number of previously untested domains of personal competence which could influence social vulnerability in later life. In this study, intellectual, cognitive, and social-cognitive functioning was assessed in a combined sample of dementia patients (n=31) and neurologically healthy individuals (n=68) aged 50 years or over.
View Article and Find Full Text PDFFew studies have examined the impact of epilepsy on the quality of life of older people, although epilepsy is one of the most common neurological disorders of old age. This study investigated the association of depression, seizure type and frequency and locus of control on health related quality of life in community dwelling adults aged over 60 years. Sixty-four participants were administered a clinical diagnostic interview to assess depression and dysthymia, and completed measures of HRQOL (QOLIE-31), locus of control and provided information on seizure variables.
View Article and Find Full Text PDFJ Clin Exp Neuropsychol
January 2010
This study aimed to investigate the acute effects of mild traumatic brain injury (mTBI) in an emergency department sample. A total of 246 (186 male, 60 female) cases of mTBI and 102 (65 male and 37 female) cases of orthopedic injuries were tested within 24 hours of injury. Mild TBI patients performed more poorly on all subtests of the Rapid Screen of Concussion (RSC) and completed fewer symbols on Digit Symbol than did orthopedic controls.
View Article and Find Full Text PDFEpilepsy is one of the most common neurological disorders of late adulthood, yet little research has examined the impact of epilepsy in an older population, particularly in relation to depression. It has been argued that the symptomatology of interictal depression closely resembles that of dysthymia; however, our understanding of depression in older people with epilepsy is generalized from younger populations. This study examined the prevalence and symptomatology of depression, using both self-report and clinical interview, in a community-dwelling group of older adults with epilepsy compared with an age-matched control group.
View Article and Find Full Text PDFEpilepsy is one of the most common neurological disorders of late adulthood, yet little research has examined the impact of epilepsy on the quality of life of older people. Current measures of health-related quality of life (HRQOL) have been developed and used almost exclusively in adults under the age of 65. The issues, which affect HRQOL in younger adults, may differ from those which affect older adults who may have age-related physical limitations and multiple co-morbidities.
View Article and Find Full Text PDFPrimary Objectives: (1) To investigate the Nonword Repetition test (NWR) as an index of sub-vocal rehearsal deficits after mild traumatic brain injury (mTBI); (2) to assess the reliability, validity and sensitivity of the NWR; and (3) to compare the NWR to more sensitive tests of verbal memory.
Research Design: An independent groups design.
Methods And Procedures: Study 1 administered the NWR to 46 mTBI and 61 uninjured controls with the Rapid Screen of Concussion (RSC).
The self-rating Dysexecutive Questionnaire (DEX-S) is a recently developed standardized self-report measure of behavioral difficulties associated with executive functioning such as impulsivity, inhibition control, monitoring, and planning. Few studies have examined its construct validity, particularly for its potential wider use across a variety of clinical and nonclinical populations. This study examines the factor structure of the DEX-S questionnaire using a sample of nonclinical (N = 293) and clinical (N = 49) participants.
View Article and Find Full Text PDFClin Neuropsychol
February 2006
This article examines the neurocognitive sequelae of repeated exposure to hypoxemia in apnea (breath-hold) divers. A brief review of the literature on the physiological and neurological adaptations involved in the "human diving reflex" is presented. The results from a neuropsychological investigation of N = 21 elite apnea divers are evaluated.
View Article and Find Full Text PDFThis study aimed to investigate the acute effects of mild Traumatic Brain Injury (mTBI) on the performance of a finger tapping and word repetition dual task in order to determine working memory impairment in mTBI. Sixty-four (50 male, 14 female) right-handed cases of mTBI and 26 (18 male and 8 female) right-handed cases of orthopaedic injuries were tested within 24 hours of injury. Patients with mTBI completed fewer correct taps in 10 seconds than patients with orthopaedic injuries, and female mTBI cases repeated fewer words.
View Article and Find Full Text PDFThis study aimed to replicate and cross-validate the Rapid Screen of Concussion (RSC) for diagnosing mild TBI (mTBI). One hundred (81 male, 19 female) cases of mTBI and 35 (23 male and 12 female) cases of orthopaedic injuries were tested within 24 hr of injury. Double cross-validation was used to examine whether total RSC scores obtained in the current sample, generalised to one previously reported.
View Article and Find Full Text PDFPrimary Objective: To examine a theoretical model which suggests that a contribution of both psychological and neuropsychological factors underlie deficits in self-awareness and self-regulation.
Research Design: Multivariate design including correlations and analysis of variance (ANOVA).
Methods: Sixty-one subjects with acquired brain injury (ABI) were administered standardized measures of self-awareness and self-regulation.