Curi Braga Bianca, Sajjadi Pejman, Bagher Mahda, Klippel Alexander, Menold Jessica, Masterson Travis
Department of Nutrition, College of Human Health and Development, The Pennsylvania State University, University Park, PA, United States of America.
College of Computing and Software Engineering, Kennesaw State University, Kennesaw, GA, United States of America.
PLoS One. 2025 Jan 30;20(1):e0312772. doi: 10.1371/journal.pone.0312772. eCollection 2025.
To understand the impact of fidelity and perceived realism on virtual reality food choices, and task motivation, engagement, and interest.
Randomized controlled trial.
Online.
84 participants recruited from Amazon Mechanical Turk.
Participants were randomly assigned to either a high- (n = 43) or a low- (n = 41) visual fidelity environment and were asked to select foods to have a meal with a friend.
Food choice, motivation of food choices, engagement, and interest.
Simple linear regressions between visual fidelity and perceived realism, and log-linear regressions for visual fidelity or perceived realism on either motivation, interest, or engagement. Poisson models between visual fidelity or perceived realism, and food selections.
Manipulating visual fidelity was not associated with perceived realism, motivation, interest, or engagement in the food selection task. Perceived realism increased motivation by 0.3% (SE 0.056; p = 0.022), interest by 1.4% (SE 0.002; p<0.001), and engagement by 0.9% (SE 0.001; p<0.001) in the food selection task. High visual fidelity decreased the total number of foods selected (B = 0.216; CI (-0.384; -0.047); p = 0.012).
Perceived realism, but not visual fidelity, is important for task related factors like motivation, engagement, and interest. Visual fidelity may influence some food selections.
了解逼真度和感知现实对虚拟现实中食物选择、任务动机、参与度和兴趣的影响。
随机对照试验。
在线。
从亚马逊土耳其机器人平台招募的84名参与者。
参与者被随机分配到高视觉逼真度环境组（n = 43）或低视觉逼真度环境组（n = 41），并被要求选择食物与朋友共进一餐。
食物选择、食物选择动机、参与度和兴趣。
视觉逼真度与感知现实之间的简单线性回归，以及视觉逼真度或感知现实对动机、兴趣或参与度的对数线性回归。视觉逼真度或感知现实与食物选择之间的泊松模型。
视觉逼真度的操控与食物选择任务中的感知现实、动机、兴趣或参与度无关。感知现实使食物选择任务中的动机提高了0.3%（标准误0.056；p = 0.022），兴趣提高了1.4%（标准误0.002；p<0.001），参与度提高了0.9%（标准误0.001；p<0.001）。高视觉逼真度减少了所选食物的总数（B = 0.216；可信区间（-0.384；-0.047）；p = 0.012）。
感知现实而非视觉逼真度，对动机、参与度和兴趣等与任务相关的因素很重要。视觉逼真度可能会影响一些食物选择。
