MODULATION OF SPINAL REFLEXES - AROUSAL, PLEASURE, ACTION
MODULATION OF SPINAL REFLEXES - AROUSAL, PLEASURE, ACTION
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DOI：
10.1111/j.1469-8986.1995.tb01219.x
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发表时间：
1995-07-01
期刊：
影响因子：
3.7
通讯作者：
REQUIN, J
中科院分区：
文献类型：
--
作者：
BONNET, M;BRADLEY, MM;REQUIN, J
人类的惊吓反射可以可靠地由前景图片的情感价位来调节，当观看不愉快的场景时，相对于愉快的场景，会引发更大的反射。如果这种调节是由于厌恶的前景启动了防御性惊吓反射，那么本质上不是防御性的反射应该会出现不同的模式。在目前的研究中，使用脊髓腱(T)反射来研究情感调制，它被很好地记录为对唤醒的差异敏感，并参与既有食欲又有防御动机的动作。因此，在不愉快的图片中诱发的T反射与在愉快的图片中诱发的T反射相比不会被预期增强。结果表明，T反射在唤醒刺激的加工过程中被促进--无论是愉快的还是不愉快的，相对于低唤醒的中性物质。这些情绪刺激对T反射波幅的影响与动机启动是情绪反射调节的基础的假说是一致的。
The human startle reflex is reliably modulated by the affective valence of foreground pictures, with larger reflexes elicited when viewing unpleasant relative to pleasant scenes. If this modulation is due to priming of the defensive startle reflex by an aversive foreground, a different pattern should occur for a reflex that is not inherently defensive in nature. In the current study, affective modulation was investigated using the spinal tendinous (T) reflex, which is well documented as sensitive to differences in arousal and is involved in actions that are both appetitively and defensively motivated. As such, T reflexes elicited during unpleasant pictures were not expected to be augmented relative to those elicited in the context of pleasant pictures. Results showed that T reflexes were facilitated during processing of arousing stimuli-either pleasant or unpleasant relative to low-arousal neutral materials. These effects of emotional stimuli on T-reflex amplitude are consistent with the hypothesis that motivational priming underlies affective reflex modulation.