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Query: UMLS:C0003635 (apraxia)
 2,817 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A scale for the assessment of hand apraxia was developed on a population of 239 institutionalized mentally retarded adults. Guttman scaling indicates adequate reliability and validity.
Percept Mot Skills 1990 Feb
PMID:The hand apraxia scale. 232 19

Five neurologically normal and five apractic subjects were required to develop and maintain target intraoral pressure levels during 5-sec. trials. The apractic subjects showed increased latencies in gaining the target and reduced maintenance time and increased variability in attempts to stay at target. Results suggest that physiologically based assessment tasks provide sensitive indices of the degree of oral apraxia in patients with left-hemisphere brain damage.
Percept Mot Skills 1987 Aug
PMID:Aerodynamic control in apraxia at three intraoral pressure levels. 368 67

In adults apraxia is more common after left-hemisphere damage. The engram for control of skilled motor movements has therefore been considered a specialized function of the left hemisphere. The ontogenesis of motor control was studied in a group of prepubertal children with congenital unilateral hemispheric lesions. Left-hemisphere lesions caused greater impairment of rapid independent finger movements, suggesting that specialization for motor control is innately programmed in the left hemisphere. No subject evidenced apraxia to verbal command, but adult-like performance is not yet expected at the age the group was tested, and effects of side of lesion could appear later.
Percept Mot Skills 1983 Dec
PMID:Ontogenesis of hemispheric specialization: apraxia associated with congenital left hemisphere lesions. 666 62

This study examined the movement characteristics of 41 children diagnosed at having meningomyelocele to whom 13 items from the Southern California Sensory Integration Test were administered. From factor analysis three factors of movement ability emerged. The first factor accounted for 40.1% of the variance and described a pattern representing both constructional and gestural apraxia. Factor II accounted for 16.2% of the variance and was indicative of bilateral coordination. The third factor accounted for 8.2% of the variance where it was observed that some subjects had ataxic-like movements which affected fine motor performance.
Percept Mot Skills 1980 Oct
PMID:Characteristics of upper limb movements in a sample of meningomyelocele children. 744 62

Motor apraxia was assessed in 25 patients with presumed dementia of the Alzheimer type and 23 patients with presumed multi-infarct dementia. Apraxia was common in both groups and was usually only mild. It correlated most strongly with language-related impairments in the Alzheimer group, as has been found in other patient groups, whereas in the group with multi-infarct dementia the pattern of correlations was less clear. It was not strongly related to performance on tests involving constructional praxis or to age in either group. Implications of the findings for clinical assessment are noted.
Percept Mot Skills 1994 Aug
PMID:Motor apraxia in dementia. 752 10

Motor performance in 11 patients with ideomotor apraxia, 11 with aphasia without such apraxia, and 11 normal controls was compared. These three groups were matched on age, sex, education, severity of aphasia, intelligence, and size of lesion. Measures of aiming, tapping, line-following, and steadiness developed by Schoppe in 1974 were used. Both apraxic and aphasic groups showed difficulties with motor performance, and the data of the apraxic group were poorer than those of the aphasic group. These results were consistent with Liepmann's theory.
Percept Mot Skills 1994 Oct
PMID:Motor performance in aphasia and ideomotor apraxia. 753 53

The concurrent validity of the Kaufman Hand Movement Test as a measure of limb apraxia was investigated. For 23 adult aphasic subjects, a Pearson r of 0.84 was obtained between scores on this test and on the Limb Apraxia Test, a battery of tasks often used in the assessment of limb apraxia. The Kaufman test is a shorter and simpler test to administer than the Limb Apraxia Test. The concurrent validity of the Kaufman test encourages its use in the assessment of limb apraxia.
Percept Mot Skills 1994 Dec
PMID:Concurrent validity of the Kaufman Hand Movement Test as a measure of limb apraxia. 753 5

The aim of the present study was to verify the role of the primary notions acquired in early school in the formation of a general strategy in elaboration of information. For this purpose we selected a tiny rural village in southern Italy which comprises a substantial number of elderly persons having very little formal schooling. These subjects were screened using a test battery composed of classic neuropsychological tests and reaction-time tests. In the subjects studied we observed a significant correlation between the amount of education and the neuropsychological performances, although no such correlation existed for reaction times. Subjects having little schooling (up to 3 years) performed better than the illiterate persons on the Constructional Apraxia test and on the Raven Matrices. However, the reaction times were similar in these groups. On this basis we claim that reaction-time tests might form a basic tool in evaluating cognitive performances of persons with very little schooling. Further, the primary notions learned during the first few years of schooling induce an improvement in mental strategies that is well-preserved in the normal aging process.
Percept Mot Skills 1993 Dec
PMID:Evaluation of the influence of illiteracy on neuropsychological performances by elderly persons. 828 67

A simplified, 3-category method for scoring the Kaufman Hand Movements test was devised to replace a previously used, more complex 21-category scoring method. The concurrent validity and diagnostic sensitivity of the rescored test as a measure of limb apraxia were investigated in a reanalysis of the test protocols of 23 aphasic adults. Using the Limb Apraxia Test as the criterion measure, a Pearson r of .71 and predictive validity of 100% were obtained. These results encourage further investigation of the Kaufman Hand Movements test as an efficient measure of limb apraxia.
Percept Mot Skills 1996 Feb
PMID:An investigation of a method of simplified scoring for the Kaufman Hand Movements test as a measure of limb apraxia. 866 86

Sensorimotor learning ability in patients with ideomotor apraxia was investigated, using as subjects, eight patients with ideomotor apraxia, 8 with aphasia without ideomotor apraxia, and 8 normal controls. The aphasia, apraxia, and normal control groups were matched for age, sex, and education. The aphasia and apraxia groups were chosen to control for lesion size and scores on Kimura's recurring figure test, the Token test, and intelligence. The mirror-aiming test was performed and the learning effect in terms of decreases in total time, the number of errors, and the times for errors were examined. There was no statistically significant difference between the learning effect of the apraxic group and that of the aphasic group for total time, the number of errors, and the times for errors; however, there were group differences on each trial for number of errors and the times for errors. These results suggest that patients with ideomotor apraxia have some difficulties in motor performance rather than disturbance of learning.
Percept Mot Skills 1995 Dec
PMID:Sensorimotor learning in ideomotor apraxia. 868 3


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