Thompson G, Folsom R C
Ear Hear. 1985 May-Jun;6(3):125-9. doi: 10.1097/00003446-198505000-00001.
The purpose of this study was to investigate auditory-stimulus effects on head-turn response behavior of infants under conditions where responses were either reinforced or not reinforced with a visual stimulus. The auditory stimuli contained different frequency bandwidths between 2000 and 4000 Hz. The stimulus with the widest bandwidth resulted in more responses than the other two stimuli in the no-reinforcement condition. When conditioning was established and all responses were visually reinforced, there was no difference in response behavior among stimulus groups for either suprathreshold or threshold stimulation. These findings have implications for clinical assessment using visual reinforcement audiometry. Results suggest that bandwidth characteristics of the auditory stimulus have no influence on response behavior of infants providing conditioning can be established and maintained through the use of visual reinforcement.
本研究的目的是在对反应进行视觉刺激强化或不强化的条件下，调查听觉刺激对婴儿转头反应行为的影响。听觉刺激包含2000至4000赫兹之间不同的频率带宽。在无强化条件下，带宽最宽的刺激比其他两种刺激引发了更多反应。当建立起条件反射且所有反应都得到视觉强化时，无论是阈上刺激还是阈刺激，刺激组之间的反应行为均无差异。这些发现对使用视觉强化测听法进行临床评估具有启示意义。结果表明，只要能通过使用视觉强化建立并维持条件反射，听觉刺激的带宽特征对婴儿的反应行为没有影响。
