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Results for “SIZE PERCEPTION”

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At least 217 records · Page 12Linked to original sources
PubMed1999

Perceiving the lengths of rods wielded in different media.

In two experiments, we investigated the ability of participants to report the lengths of rods wielded in air or water. Homogeneous aluminum rods were employed in Experiment 1. The inertia of the rods was manipulated in Experiment 2 through the use of attached masses. Although the torques required in order to wield rods in water are substantially greater than those required to wield rods in air, the perceived lengths of rods wielded in the two media were very similar. Perceived length was found to be a function primarily of inertia in both media. The experiments also revealed a small influence of resistance due to the denser medium of water. The results demonstrate the ability of perceivers to extract a physical invariant from a complex array of forces. The discussion is focused on the role of invariants in dynamic touch.

Air↗
PubMed1998

Perceptions of body size in Pacific Islanders.

OBJECTIVE: To assess attitudes to body size and obesity in Samoans, a Pacific island group characterised by very high levels of obesity and traditionally strong positive cultural views of large bodies. DESIGN: Cross sectional study of Samoan adults in Samoa and New Zealand. SUBJECTS: 84 female and 77 male Samoans in Samoa and 41 female and 24 male Samoans in Auckland, New Zealand, aged 25-55 y. MEASUREMENT: Body mass index (BMI), standardised survey questionnaires of perceptions of bodyweight and health, diet and exercise, and perception of body sizes on a continuous scale. RESULTS: Although Samoans in both countries display high population levels of obesity, ideal body sizes are slim and body dissatisfaction and attempted weight losses were apparent. However, women and men above normal weight did not characteristically perceive themselves as obese, were as positive about their body size, weight and health, and obese women were no more likely to be attempting to lose weight than their slimmer peers. CONCLUSIONS: The traditional Samoan veneration of large bodies is not apparent as ideal body sizes are slim. An important difference in values with Western industrialised societies is the absence of a strongly negative view of obesity.

Adult↗