Shannon R V, Adams D D, Ferrel R L, Palumbo R L, Grandgenett M
Boys Town National Institute, Omaha, Nebraska 68131.
J Acoust Soc Am. 1990 Feb;87(2):905-7. doi: 10.1121/1.398902.
A computer interface has been designed and implemented that allows presentation of biphasic pulse stimuli to patients with the Nucleus Ltd./Cochlear Corporation cochlear implant. The one version of the interface connects to a standard parallel output port of a PC or AT compatible computer, and another version plugs directly into a standard PC/XT bus slot. The host computer sends a stream of bytes to the parallel port that specifies the configuration of the desired output pulses. Upon receipt of the data, the interface generates the appropriate burst sequence that is delivered to the patient's external transmitter coil. The coded information is interpreted by the internal receiver that delivers the pulse to the specified electrodes at the specified amplitude and pulse width. This interface makes it possible to interleave pulses on two or more electrode pairs, to modulate the amplitude or timing of a pulse sequence, or to sweep a stimulus across the electrode array. Investigators can achieve stimulus control with this interface that allows them to conduct psychophysical, electrophysiological, and speech experiments not possible through the patient's speech processor or with available clinical interfaces.
已经设计并实现了一种计算机接口，该接口可向使用Nucleus有限公司/科利耳公司人工耳蜗的患者呈现双相脉冲刺激。该接口的一个版本连接到PC或AT兼容计算机的标准并行输出端口，另一个版本直接插入标准PC/XT总线插槽。主机计算机向并行端口发送一系列字节，这些字节指定所需输出脉冲的配置。接收到数据后，该接口生成适当的突发序列，并将其传送到患者的外部发射线圈。编码信息由内部接收器解释，该接收器将脉冲以指定的幅度和脉冲宽度传送到指定的电极。该接口使得在两个或更多电极对上交错脉冲、调制脉冲序列的幅度或定时，或者在整个电极阵列上扫描刺激成为可能。研究人员可以通过该接口实现刺激控制，从而能够进行通过患者的言语处理器或现有临床接口无法进行的心理物理学、电生理学和言语实验。
