Bourassa C M, Weiden T D
Behav Neurosci. 1985 Apr;99(2):381-4. doi: 10.1037//0735-7044.99.2.381.
Naive cats cannot use thalamic stimulation as a signal to perform a behavioral response when stimulus intensities are too weak to evoke orienting behavior. Responses are quickly learned at higher intensities of stimulation, and with continued training, the cats become able to response to the weaker, previously ineffective stimulus. This increase in sensitivity is not due to changes in tonic arousal and appears to be relatively specific to the stimulated nucleus. The procedures may be useful in exploring the neural mechanisms of perceptual learning.
当刺激强度过弱以至于无法引发定向行为时，未经训练的猫无法将丘脑刺激作为执行行为反应的信号。在较高刺激强度下，反应能很快习得，并且随着持续训练，猫能够对较弱的、先前无效的刺激做出反应。这种敏感性的增加并非由于紧张性觉醒的变化，而且似乎相对特定于受刺激的核团。这些程序可能有助于探索知觉学习的神经机制。
