More than 100 adult male and female albino Wistar rats that had been exposed during their entire prenatal development to one of two patterns of magnetic fields and one of four intensities (reference: 5 to 20 nT; low: 30 to 50 nT; medium: 90 to 580 nT; high: 590 nT to 1.2 microT) were tested for their capacity for two forms of classical conditioning. The rats exposed for 10 sec every 50 sec to a field composed of successive 200 msec sequences of several different patterns known to produce physiological effects exhibited significantly more intense conditioned fear and taste aversion than those exposed continuously to a single frequency-modulated pattern. The behavioral differences, relative to the reference group (“controls”), were greatest for rats exposed to the 30 to 50 nT or 90 to 580 nT (low to medium intensities) for both patterns of fields. These results suggest that prenatal exposure to physiologically-patterned magnetic fields within a specific “window” of intensities that overlap with values found in many human habitats may produce long-term changes in behaviors.

中文翻译：

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产前暴露于复杂弱磁场后成年大鼠的行为变化

100 多只成年雄性和雌性白化 Wistar 大鼠在其整个产前发育过程中暴露于两种磁场模式之一和四种强度之一（参考：5 至 20 nT；低：30 至 50 nT；中：90到 580 nT；高：590 nT 到 1.2 microT）测试了它们对两种形式的经典调节的能力。与连续暴露于单一频率调制模式的大鼠相比，每 50 秒暴露于由几种不同模式的连续 200 毫秒序列组成的场中的大鼠表现出明显更强烈的条件恐惧和味觉厌恶，每 50 秒。对于暴露于 30 到 50 nT 或 90 到 580 nT（低到中等强度）的两种场模式的大鼠，相对于参考组（“对照”）的行为差异最大。