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Full-Text Articles in Social and Behavioral Sciences
Time-To-Contact Perception During Simulated Night Landing, Gavin Prowse, Stephen A. Palmisano, Simone K. Favelle
Time-To-Contact Perception During Simulated Night Landing, Gavin Prowse, Stephen A. Palmisano, Simone K. Favelle
Faculty of Health and Behavioural Sciences - Papers (Archive)
In 2 experiments, nonpilots made time-to-contact (TTC) judgments during simulated oblique descents toward a groundplane. Experiment 1 revealed a significant effect of simulated glideslope on TTC judgments: 3-degree simulations were underestimated, 6-degree simulations were generally accurate, and 9-degree simulations were overestimated. However, there was a significant reduction in this glideslope effect when the simulated aimpoint was explicitly (as opposed to implicitly) identified throughout the display. This glideslope effect was also found to disappear in Experiment 2, when aimpoint distance was held constant for all glideslopes, suggesting that TTC was being indirectly calculated based on perceived distance.
Bone Mineral Density And Content During Weight Cycling In Female Rats: Effects Of Dietary Amylase-Resistant Starch, Ian L. Brown, Hasina Ambia-Sobhan, Abigail E. Huang, Sue A. Shapses, Sugeet Jagpal, John D. Bogden, Francis W. Kemp, Anne M. Birkett
Bone Mineral Density And Content During Weight Cycling In Female Rats: Effects Of Dietary Amylase-Resistant Starch, Ian L. Brown, Hasina Ambia-Sobhan, Abigail E. Huang, Sue A. Shapses, Sugeet Jagpal, John D. Bogden, Francis W. Kemp, Anne M. Birkett
Faculty of Health and Behavioural Sciences - Papers (Archive)
ABSTRACT: BACKGROUND: Although there is considerable evidence for a loss of bone mass with weight loss, the few human studies on the relationship between weight cycling and bone mass or density have differing results. Further, very few studies assessed the role of dietary composition on bone mass during weight cycling. The primary objective of this study was to determine if a diet high in amylase-resistant starch (RS2), which has been shown to increase absorption and balance of dietary minerals, can prevent or reduce loss of bone mass during weight cycling. METHODS: Female Sprague-Dawley (SD) rats (n=84, age = 20 weeks) …