Hilbert Anja, Czaja Julia
Departement für Psychologie, Universität Freiburg, Switzerland.
Prax Kinderpsychol Kinderpsychiatr. 2011;60(4):270-84. doi: 10.13109/prkk.2011.60.4.270.
Loss of control (LOC) over eating is a common and psychopathologically relevant experience in childhood. The current study aimed at evaluating bite size and bite velocity as behavioral indicators of LOC eating in an experimental test meal study with a variation of mood. Children with or without LOC eating (N=120, 8-13 years) consumed a parent-child test meal and a child-only meal consisting of snack food, following induction of negative mood. Bite size and bite velocity were determined through behavioral observation, food intake was measured, and sense of LOC and mood were rated. Children with LOC eating did not show greater bite size and bite velocity than children without LOC eating. Bite size of children with LOC eating was increased in negative mood and decreased in neutral mood. Greater bite size and bite velocity predicted greater food intake at test meal and snack eating and greater LOC over eating at snack eating, however, without an intervening influence of negative mood. Bite size was significantly associated with greater body weight of child and parent. Bite size and bite velocity were not significantly associated with eating disorder psychopathology and varying levels of LOC symptoms. The evidence as to whether bite size and bite velocity are suited as behavioral indicators of LOC eating is not clear-cut. Further research on behavioral indicators of childhood LOC eating is warranted.
饮食失控（LOC）在儿童期是一种常见且与精神病理学相关的体验。本研究旨在通过一项改变情绪的实验性试餐研究，评估口量和咬食速度作为饮食失控行为指标的情况。有或无饮食失控的儿童（N = 120，8 - 13岁）在诱导出负面情绪后，食用了一顿亲子试餐和一顿仅由儿童食用的包含零食的餐食。通过行为观察确定口量和咬食速度，测量食物摄入量，并对饮食失控感和情绪进行评分。有饮食失控的儿童与无饮食失控的儿童相比，口量和咬食速度并未更大。有饮食失控的儿童在负面情绪下口量增加，在中性情绪下口量减少。更大的口量和咬食速度预示着在试餐和零食进食时摄入更多食物，以及在零食进食时对饮食有更大的失控感，然而，负面情绪并无干预影响。口量与儿童和家长的体重增加显著相关。口量和咬食速度与饮食失调精神病理学及不同程度的饮食失控症状无显著关联。关于口量和咬食速度是否适合作为饮食失控行为指标的证据并不明确。有必要对儿童饮食失控的行为指标进行进一步研究。
