The Clinical neuropsychologist最新文献

Objective: The primary purpose of this study is to better understand current practices in the assessment of autism spectrum disorder (ASD) by neuropsychologists.

Methods: A 21-item survey regarding ASD assessment beliefs and practices was sent via email through neuropsychology listservs. The survey was accessed by 445 licensed psychologists who identified as neuropsychologists. A total of 367 surveys were deemed usable for data analysis. Descriptive statistics were used to characterize the full sample. Exploratory analyses were conducted between groups of interest, including primary population served (pediatric, adult, or lifespan), primary practice setting (medical center vs. private practice) and years in practice (< 5 years, 5 to 14 years, or 15+ years).

Results: Respondents were well-distributed across age range, years in practice, primary practice setting, and primary practice location. Almost all respondents (most of whom self-identified as pediatric-focused clinicians) believe that neuropsychologists should be able to competently rule in or out ASD and most received training in ASD assessment. Approximately 40% of respondents endorsed wanting more training in ASD assessment to increase their competence and confidence in making this differential diagnosis. Minimal differences in ASD beliefs and assessment practices were seen across years of practice or primary practice setting. Pediatric and lifespan clinicians had similar experience with ASD assessment practices, and both generally differed from adult clinicians.

Conclusions: Our findings suggest many respondents desire further specialty ASD training for neuropsychologists. Additionally, the large majority of respondents indicated that future neuropsychologists should receive training in ASD assessment during graduate school, internship and/or post-doctoral fellowship.

Objective: This paper provides clinical guidance supported by the literature on conducting diagnostic evaluations for young children suspected of having autism spectrum disorder (ASD).

Method: Authors provided a summary of clinical recommendations and evidence-based strategies for providing diagnostic evaluations for young children suspected of having ASD that are supported by the existing literature.

Results: ASD is a complex condition that typically presents in the first couple years of a child's life. While many children can be accurately diagnosed by age 2, the majority of children are diagnosed much later. This article provides recommendations for evidence-based clinical practices to support accurate early identification and diagnosis in young children with autism. Recommended practices and measures for screening, comprehensive diagnostic evaluation, and differential diagnosis of ASD in early childhood are discussed.

Conclusions: Early identification of ASD is important to promote improved outcomes related to early intervention. There are a variety of tools and practices available to support neuropsychologists in providing accurate early diagnosis and appropriate developmental monitoring for children suspected of ASD and related neurodevelopmental conditions. There is a need for continued efforts regarding awareness of ASD in early childhood and targeted training in ASD for neuropsychologists and other disciplines who support families of young children with disabilities.

Objective: While the Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) shows high sensitivity for detecting autism spectrum disorder (ASD) when present (i.e. true positives), scores on the ADOS-2 may be falsely elevated for individuals with cognitive impairments or psychological concerns other than ASD (i.e. false positives). This study examined whether demographic, psychological, cognitive, and/or adaptive factors predict ADOS-2 false positives and which psychiatric diagnoses most often result in false positives.

Method: Sensitivity, specificity, false positive, and false negative rates were calculated among 214 5- to 16-year-old patients who completed an ADOS-2 (module 3) as part of an ASD diagnostic evaluation. Additional analyses were conducted with the 101 patients who received clinically elevated ADOS-2 scores (i.e. 56 true positives and 45 false positives).

Results: Results revealed a 34% false positive rate and a 1% false negative rate. False positives were slightly more likely to be male, have lower restricted and repetitive behavior (RRB) severity scores on the ADOS-2, and demonstrate elevated anxiety during the ADOS-2. Neither IQ, adaptive functioning, nor caregiver-reported emotional functioning was predictive of false positive status. Trauma-related psychiatric diagnoses were more common among false positives.

Conclusions: The ADOS-2 should not be used in isolation to assess for ASD, and, in psychiatrically-complex cases, RRB symptom severity may be particularly helpful in differentiating ASD from other psychiatric conditions. Additionally, heightened levels of anxiety, more so than overactivity or disruptive behavior, may lead to non-ASD specific elevations in ADOS-2 scores.

Objective: There has been a steady rise in research characterizing executive functioning (EF) impairments in autistic individuals but limited research investigating EF strengths. This review provides a summary of current EF research in autistic adults with a focus on EF challenges and strengths and potential sources of heterogeneity in research findings. New avenues for addressing gaps in our understanding of EF strengths are proposed.Method: A review of the EF literature was conducted. One hundred twenty-four studies of inhibition, working memory, cognitive flexibility, fluency, planning, decision-making, and subjective measures of EF in autistic adults were included.Results: Autistic adults with average intellectual functioning demonstrate difficulties with cognitive flexibility, phonemic fluency, and working memory. Strengths in planning, decision-making, and semantic verbal fluency were evident in some but not all studies. Findings regarding inhibition are inconclusive. Key findings across each EF domain are discussed and sources of potential heterogeneity across studies were evaluated. The type of measure used appears to contribute to heterogeneous findings. Subjective EF measures revealed more consistent findings of deficits in autistic adults than objective EF measures.Conclusions: Research reveals areas of EF weaknesses as well as strengths in autistic adults. Unlike EF challenges, EF strengths are not well understood. Future research identifying EF strengths is needed to improve services and supports for autistic adults. Further investigation of potential factors that interact with or constrain EF such as comorbid disorders, verbal ability, sensory processing, and other factors specific to autism will be critical to move the field forward and increase understanding of how EF is related to everyday functioning in autistic adults.

To provide education regarding the critical importance of test security for neuropsychological and psychological tests, and to establish recommendations for best practices for maintaining test security in forensic, clinical, teaching, and research settings. Previous test security guidelines were not adequately specified.

Method: Neuropsychologists practicing in a broad range of settings collaborated to develop detailed and specific guidance regarding test security to best ensure continued viability of neuropsychological and psychological tests. Implications of failing to maintain test security for both the practice of neuropsychology and for society at large were identified. Types of test data that can be safely disclosed to nonpsychologists are described.

Specific procedures can be followed that will minimize risk of invalidating future use of neuropsychological and psychological measures.

Clinical neuropsychologists must commit to protecting sensitive neuropsychological and psychological test information from exposure to nonpsychologists, and now have specific recommendations that will guide that endeavor.

Objective: This study cross-validated the word choice test (WCT) in a diverse neuropsychiatric sample and examined the effect of increasing verbal memory impairment severity on WCT performance.

Method: Data from 147 clinically referred patients (113 valid/34 invalid) who completed the WCT, Rey Auditory Verbal Learning Test (RAVLT), and four independent criterion PVTs were analyzed. RAVLT memory impairment bands used were: ≥37T (normal memory); 30T-36T (below average scores/mild impairment); and ≤29T (extremely low scores/severe impairment).

Results: WCT and RAVLT were moderately correlated. The invalid group had significantly worse performance on the WCT and RAVLT. For the overall sample, the WCT yielded an area under the curve (AUC) = .79, with 62% sensitivity/93% specificity at a cut-score of ≤41. When the sample was subdivided by memory impairment severity, the severe impairment group had significantly lower WCT scores than the normal group. Moreover, the WCT retained moderate classification accuracy among the normal memory (AUC = .85) and mild memory impairment (AUC = .76) groups, with sensitivities of 65% and 62% (≥91% specificity) at their respective optimal cut-scores of ≤44 and ≤42. In contrast, the WCT had low classification accuracy among those with severe memory impairment (AUC = .66), with only 15% sensitivity/95% specificity at the optimal cut-score of ≤30.

Conclusion: The WCT is generally useful for detecting invalid neuropsychological test performance, although, its classification accuracy was diminished among patients with severe memory impairment. Therefore, while the WCT remains a viable option for performance validity assessment, neuropsychologists should carefully consider its use when this level of severe memory impairment is known or suspected.