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R S Dean

Publications and source records attributed to R S Dean.

At least 73 records · Page 4Linked to original sources
PubMed1986

The practice of clinical neuropsychology in the United States.

This paper reports the results of a survey of current members of the American Psychological Association's Division of Clinical Neuropsychology and the National Academy of Neuropsychologists on issues regarding practice. Data were compared between groups and to the findings of two 1980 surveys. Specifically, respondents were asked to include their employment setting, source and scope of practice, assessment batteries, typical fees, background training, and extent of practice outside traditional neuropsychological domains. In general, it seems that in the interim 5 years, clinical neuropsychology has experienced a shift in primary work settings. In addition, members of different professional organizations reflect similar types of response patterns to the survey, irrespective of other factors.

Journal Article↗
PubMed1986

Neuropsychological reference groups for 9- through 14-year-old subjects with identified learning disabilities.

The neuropsychological reference groups reported in this study are based on a sample of 1,325 learning-disabled subjects aged 9 through 14 drawn from a midsize midwestern metropolitan community. The sample was composed of 1,006 males and 319 females. Separate means and standard deviations, reported for each gender and age group, were generated for 31 measures ordinarily included as part of the Halstead Neuropsychological Test Battery for Children. Several comparisons were made with other norms previously reported. The need for additional neuropsychological reference groups for children is discussed.

Journal Article↗
PubMed1986

Response time as a dependent measure on the Category Test of the Halstead-Reitan Neuropsychological test Battery.

The role of response time on the Category Test of the Halstead-Reitan Neuropsychological Battery (HRNB) was examined. Seventy-two normal adult volunteers were administered the complete HRNB. Average response times for individual slides were computed for correct (CRT), incorrect (IRT), and total (TRT) scores on the Category Test. The utility of these response-time scores was examined in the context of other HRNB variables seen to be factorially related to the Category Test. Results from a stepwise multiple regression analysis indicated that approximately 15% of the variability in Category error scores was explained by a measure of spatial memory (TPT-location), and an additional 15% was accounted for by response time (TRT and IRT). A factor analysis indicated that the three measures of response time loaded on a factor that accounted for 21% of the explained variability in HRNB performance.

Journal Article↗
PubMed1986

Differential diagnosis of dementia and depression in the elderly using neuropsychological methods.

This study examined the utility of the Halstead-Reitan Neuropsychological Battery in the differential diagnosis of dementia, major depression, and general neurological impairment. Orthogonal contrasts between groups showed superior performance for depressives on most Halstead-Reitan subtests. Contrasts between organically impaired groups showed that these groups did not differ significantly (p >.05) on any of the Halstead-Reitan subtests. A step-wise discriminant analysis indicated that on the basis of neuropsychological variables alone, demented patients were differentiated from elderly depressed with clinical levels of accuracy. However, when neurologically impaired and demented patients were considered together in a single group reflecting organic impairment, hits increased dramatically. The results were discussed in terms of their implications for differentially diagnosing dementia and depression in the elderly.

Journal Article↗
PubMed1985

ECT, blood pressure changes and neuropsychological deficit.

Twenty psychiatric in-patients were studied before and after five bilateral electroconvulsive treatments for major depression. There were significant memory and neuropsychological changes after treatment, and significant reductions in depression rating scores, but they did not correlate with various measures of blood pressure elevation during treatment. The importance of ECT-related amnesia is discussed.

Adult↗
PubMed1983

Intelligence as a predictor of nonverbal learning with learning-disabled children.

Although the notion that the WISC-R measures children's learning proficiency is widespread, there are few data to support this hypothesis. The present study concerned the prediction of learning proficiency on the basis of scores on the WISC-R with 60 children referred because of classroom learning difficulties. The single best predictor, WISC-R Coding, accounted for over 50% of the variance in a controlled nonverbal paired associate learning measure. The multiple correlations for the dependent measures of trials to criteria and number of correct responses were in the 90s. In each case, the Coding and Similarities subtests, with Vocabulary in opposition, proved to be the most potent predictors of nonverbal learning.

Child↗
PubMed1982

Laterality effects in cued auditory asymmetries.

The effect of cued attention on perceptual asymmetries was investigated with normal adults who differed in their lateral preference. Specifically, 15 right lateralized and a like number of mixed/left subjects were isolated on the basis of their lateral preference for visual guided motor activities. Learners' attention was directed to the left, right and both channels of dichotically presented verbal stimuli. Instructions to shift attention had little effect on the usual right-ear advantage for subjects who displayed a right of midline preference pattern. More bilateral subjects significantly improved their recognition of stimuli presented to the directed ear.

Adult↗