Lester B M, Klein R E, Martinez S J
Dev Psychobiol. 1975 Nov;8(6):541-6. doi: 10.1002/dev.420080611.
Habituation of the orienting response (OR) was used to assess possible attentional deficits associated with infantile malnutrition. The procedure involved the presentation of 40 trials of a pure tone stimulus to 8 marginally nourished and 8 malnourished 13 1/2-month-old male infants. The results showed that the initial OR to stimulus onset, as measured by the magnitude of cardiac deceleration, was significantly larger in marginally nourished than in malnourished infants. Within-group comparisons revealed that marginally nourished infants showed significant increases in OR magnitude to changes in tonal frequency whereas the malnourished infants did not. The results were taken as evidence of an attentional deficit associated with infantile malnutrition that is likely to interfere with subsequent learning.
运用定向反应（OR）的习惯化来评估与婴儿营养不良相关的潜在注意力缺陷。该程序包括向8名轻度营养不良和8名营养不良的13个半月大男婴呈现40次纯音刺激试验。结果显示，以心脏减速幅度衡量，轻度营养不良婴儿对刺激开始的初始OR显著大于营养不良婴儿。组内比较表明，轻度营养不良婴儿对音调频率变化的OR幅度显著增加，而营养不良婴儿则没有。这些结果被视为与婴儿营养不良相关的注意力缺陷的证据，这种缺陷可能会干扰后续学习。
