Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0155339 (Brown)
 12,436 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Rehearsal, backward counting, and production of alpha brain-waves were used as interpolated tasks in a Brown-Peterson paradigm to determine their effect upon verbal retention. A within-subjects design was used in which trained subjects were told on a given trial either to produce alpha rhythm, mentally rehearse, or count backward following presentation of a CCC trigram. Results for the backward-counting condition duplicate, for the retention intervals used, the shape of the classic Peterson and Peterson forgetting curve but indicate little loss of memory in either the rehearsal or alpha conditions. No siginificant difference was found between the alpha production and rehearsal conditions.
Percept Mot Skills 1976 Apr
PMID:Alpha brain wave production as an interpolated task in a Brown-Peterson paradigm. 127 77

With 66 boys, aged 3 yr. to 17 yr. who were referred for potential gender-identity disorder, this study examined intrapsychic manifestations as reflected in their projections to the Draw-A-Person Test, the Brown IT Scale for Children, and the Shneidman Make-A-Picture Story Test. Without access to these projective test findings, an independent clinical psychologist provided a diagnostic rating on the severity of gender disturbance on a five-point diagnostic rating scale, based on clinical interviews of the child and his parents and a systematic behavioral assessment based on previously published normative standardization data. For each of the three projective measures, significant correlations were found between the clinician ratings on severity of gender disturbance and the test findings in the feminine direction (D-A-P, r = .44; IT Scale, r = .64; M-A-P-S, r = .35). These results validated the use of intrapsychic phenomena of fantasy and self-perception as measured by these projective tests for the diagnosis of gender disturbance in male children and adolescents.
Percept Mot Skills 1990 Dec
PMID:Projective test findings for boys with gender disturbance: Draw-A-Person Test, IT scale, and Make-A-Picture Story Test. 229 79

Cardiac myocytes isolated from adult rat hearts were grown on laminin coated culture dishes for more than a month. During this time, the cells underwent a morphological transformation which has also been referred to by others as cell remodeling (Guo J-X, Jacobson SL, Brown DL: Cell Mot Cytoskeleton 1986;6:291-304). This results in a change in myocyte morphology from its typical in vivo cylindrical shape to one which is more pleiomorphic. Despite the long-term change in morphology, myocytes expressed for differing lengths of time several aspects of the adult phenotype as evidenced by the following: 1) maintenance of cylindrical shape and/or evident cross-striations for the first 24-48 hours in culture, 2) reappearance of cross-striations during the second week in culture, 3) little or no spontaneous contractility for the first 4 days in culture, 4) expression of only the V1 isoform of myosin for at least 7 days, and 5) altered myosin isoform expression in response to changes in environmental conditions. These factors taken together suggest that in culture the adult cardiac myocyte remains a highly differentiated cell (as opposed to possible dedifferentiation) and maintains many of its previous in vivo characteristics. Such highly differentiated adult cells should be suitable as an in vitro system for studying the direct cellular effects of factors which regulate growth and differentiation of the in vivo heart.
 ...
PMID:Differentiation of adult rat cardiac myocytes in cell culture. 246 96

The present study examined psychometric and normative data for a sample of 259 public high school sophomores (122 boys and 137 girls) who had been administered the Group Embedded Figures Test. For the combined group a Spearman-Brown coefficient of internal consistency of .88 was obtained between Sections 2 and 3 of the test. The present sample was significantly more field-dependent than the normative groups reported by other investigators, and no sex differences was observed with respect to field dependence/field independence. It is recommended that test time for administration of this instrument be extended to 6 min. for each section for samples of high school age.
Percept Mot Skills 1985 Dec
PMID:Group embedded figures test: psychometric data for a sample of high school students. 409 65

In a previous experiment, Allen found no release from proactive inhibition using the Brown-Peterson procedure in a group who were shifted from recalling colors to recalling the names of colors. The lack of release suggests that colors and color names are encoded in similar ways. It was argued that the similarity of encoding might have been caused by the procedure of requiring the subjects to say out loud the names of the colors at the time of stimulus presentation and recall. In the present experiment, a procedure was devised that eliminated the need for verbalization of the colors. The same pattern of results was obtained, namely, release from proactive inhibition in the group shifted from recalling color names to colors but not in the group shifted in the opposite direction. It was concluded that if subjects encode colors as a verbal label, then this encoding strategy is not caused by the procedure of requiring the subjects to verbalize the colors.
Percept Mot Skills 1984 Aug
PMID:Short-term memory for colors and color names in the absence of vocalization. 649 44

This paper presents the results of an in-depth study of parameters characterizing sequenced saccadic eye movements for a group of dyslexic children and a comparative normal control group with ages in the range greater than 8.0 yr. and less than 13.0 yr. No parameters were statistically different for the two groups, which supports the findings of Brown, et al. and contradicts the findings of Pavlidis. Our results indicate that sequenced saccadic eye movements are not diagnostically useful for early detection of dyslexia.
Percept Mot Skills 1984 Oct
PMID:A detailed study of sequential saccadic eye movements for normal- and poor-reading children. 651 91

This study determined the concurrent validity between the Activity Vector Analysis (AVA) index of anxiety (AVA pattern shape PS 5519, Vector 4 divided by Vector 3) and scores on the IPAT Anxiety Scale. Utilizing 182 subjects including 59 Brown University undergraduates, 74 suicide prevention volunteers, 34 emergency medical technicians, and 15 Rhode Island College students, results suggest that strong concurrent validity exists between the AVA anxiety index and the IPAT Anxiety Scale. In the four groups tested, the correlation between the AVA measure of anxiety and the IPAT ranged from .39 to .56. The IPAT and the AVA index of anxiety seem essentially to measure the same construct of basic anxiety.
Percept Mot Skills 1982 Dec
PMID:Concurrent validity for an Activity Vector Analysis index of anxiety. 716 88

The current investigation was designed to answer three questions: is the sex difference on Vandenberg's Mental Rotation Test present in all five subsections, what is the relation with performance, and what are the estimates of split-half reliability. Undergraduate students (55 men and 52 women) enrolled in introductory psychology courses were administered Vandenberg's test and were given 6 min. to complete the test. An over-all significant sex difference indicated men's mean performance was significantly higher than women's "total item score" and "total ratio item score," but only for Section 4(D). This suggests that men were not significantly better at identifying all types of visual spatial items on all parts of Vandenberg's test and that the source of the sex difference may be due, at least in part, to performance factors. Reliability measures for Vandenberg's test were established for the 6-min. completion time. Spearman-Brown reliability coefficient was calculated for the "item score," "ratio item score," and "attempted item" scores (.86, .85, and .93, respectively).
Percept Mot Skills 1997 Aug
PMID:Mean differences among subcomponents of Vandenberg's Mental Rotation Test. 929 95

The type and distribution of neurokinin-1 (NK-1) receptor-expressing neurones were studied in young (14-day-old) rats' lumbar spinal cord using pre-embedding immunohistochemistry. The heaviest immunoreactivity was observed in the middle part and lateral fourth of lamina I where the great majority of immunoreactive perikarya represented fusiform and multipolar cells. In lamina II the middle and medial part showed moderate immunoreactivity, most of the cells resembled stalked cells. In lamina III the labelled perikarya were evenly distributed, while those in lamina IV accumulated mainly in the lateral part. In both laminae most of the labelled neurones represented central cells, the rest of them belonged to the antenna-type cells with long dorsally directed dendrites penetrating the superficial laminae. The immunoreactivity in laminae V-VII was uniform and relatively weak. In lamina VIII the immunopositive perikarya were encountered only rarely while in lamina IX virtually all motoneurones showed weak immunoreactivity. Lamina X contained small, multipolar and fusiform labelled perikarya. In conclusion, we found that the general appearance of the NK-1 receptor immunostaining and the major type of NK-I receptor-expressing neurones were similar to that found previously in adult spinal cord. Using the same method as Brown and colleagues the number of labelled NK- 1 receptor immunoreactive cells was similar in young and adult animals except lamina I where the number of immunoreactive neurones was twice that in adults.
Somatosens Mot Res 1999
PMID:Immunohistochemical localization of neurokinin-l receptor in the lumbar spinal cord of young rats: morphology and distribution. 1063 32

Given the severe assumptions needed for use of the Spearman-Brown reliability formula, the Tactual Performance Test trials data described in 2000 were reanalyzed using coefficient alpha. These values are considered the best estimate of the population reliability for the trials.
Percept Mot Skills 2001 Jun
PMID:Coefficients alpha for the tactual performance test trials. 1145 19


1 2 Next >>