Biomedical subjects

G Parameswaran

Publications and source records attributed to G Parameswaran.

4 recordsLinked to original sources

PubMed1996

Improvements in horizontality performance as a function of type of training.

90 undergraduates with low spatial perceptual ability were assigned to one of three groups of control, learner-guided instructions, and tutor-guided instructions. The groups differed in amount and type of spatial training administered in a laboratory setting. Participants completed horizontality and vertically spatial perceptual tasks immediately after pretesting and again one month later. Both groups given training showed more accurate performance at posttest than at pretest. In addition, the learner-guided instruction group outperformed the tutor-guided instruction group and control group at posttest and on novel but related tasks. Gender differences in posttest performance favoring males (n = 35) were obtained in the tutor-guided performance group and control group but not in the learner-guided instruction group. The number of hints the latter needed during training was predictive of posttest performance. Implications for assessment and remediation of undergraduates' spatial perceptual abilities are discussed.

Adult↗

PubMed1996

Differences in map representation by Indian and American adolescents.

Piaget and Inhelder (1967) outlined three stages of spatial representation of the environment culminating in an abstract map-like understanding of space. 120 boys and 120 girls from India and the USA were asked to draw a map of their neighborhoods displaying roads and other landmarks, especially their homes and schools. Analyses indicated both gender and cross-cultural differences in the stage performance of the participants. Implications of these findings as well as future lines of research are discussed.

Adolescent↗

PubMed1995

Gender difference in horizontality performance before and after training.

To investigate why some individuals, especially females, fail Piaget's horizontality task, the author administered Piaget's horizontality task, the rod and frame field-dependence task, Bem's Sex Role Inventory, and a history of spatial activities questionnaire to 122 undergraduates. Individuals who failed the horizontality task were trained on this task, and after 1 month all participants were administered a horizontality posttest. Hierarchical regression analysis revealed that field dependence was related significantly to both pretest and posttest scores. Sex and masculine sex role concept were related to pretest but not to posttest scores. The implications of these findings for group differences in horizontality performance are discussed.

Adult↗

PubMed1989

Age and sex differences in representation of horizontality among children in India.

Girls and boys from Grades 4 (ns = 15) and 9 (ns = 15 and 16) in Bombay, India were individually administered water-level and crossbar assessments of horizontality representation. Ninth graders were more successful than fourth graders, especially on trials in which the apparatus was obliquely rotated. Ninth graders, however, did not perform at ceiling levels, and a sex difference with a moderate effect size favoring male over female adolescents was obtained for the water-level task. These findings of both developmental and individual differences in horizontality performance replicate previous findings in Western cultures.

Adolescent↗