Schicatano Edward J
Department of Psychology, Neuroscience Program, Wilkes University, Wilkes Barre, PA, USA
Percept Mot Skills. 2016 Apr;122(2):444-51. doi: 10.1177/0031512516640673.
During top-down processing, higher cognitive processes modulate lower sensory processing. The present experiment tested the effects of directed attention on trigeminal reflex blinks in humans (n = 8). In separate sessions, participants either attended to blink-eliciting stimuli or were given no attentional instructions during stimulation of the supraorbital branch of the trigeminal nerve. Attention to blink-eliciting stimuli significantly increased reflex blink amplitude and duration and shortened blink latency compared with the no attention condition. These results suggested that higher processes such as attention can modify the trigeminal blink reflex circuit.
在自上而下的加工过程中，较高层次的认知过程会调节较低层次的感觉加工。本实验测试了定向注意对人类三叉神经反射眨眼的影响（n = 8）。在不同的实验环节中，参与者要么关注引发眨眼的刺激，要么在三叉神经眶上支受到刺激时不给予注意指示。与无注意条件相比，关注引发眨眼的刺激显著增加了反射性眨眼的幅度和持续时间，并缩短了眨眼潜伏期。这些结果表明，诸如注意等较高层次的过程可以改变三叉神经眨眼反射回路。
