James L, Gordon E, Kraiuhin C, Meares R
Department of Psychiatry, Westmead Hospital, New South Wales, Australia.
Compr Psychiatry. 1989 Jan-Feb;30(1):84-9. doi: 10.1016/0010-440x(89)90121-1.
Janet suggested a disorder of attention was fundamental to hysteria. This idea was investigated in this study by examining mismatch negativity (MMN), which depends upon a subtraction of cortical potentials evoked by background stimuli from those evoked by target stimuli. Ten patients with somatization disorder (SMD) were compared with ten normal individuals. MMN was smaller in somatizers, particularly at the central recording site. One interpretation of this observation is that somatizers respond more similarly than normals to "relevant" and "irrelevant" stimuli. This finding of an impairment in attentional processing in somatization disorder suggests a subtle neurophysiological disturbance.
珍妮特认为注意力障碍是癔症的根本所在。本研究通过检测失配负波（MMN）对这一观点进行了探究，失配负波取决于从目标刺激诱发的皮层电位中减去背景刺激诱发的皮层电位。将10名躯体化障碍（SMD）患者与10名正常个体进行了比较。躯体化障碍患者的失配负波较小，尤其是在中央记录部位。对这一观察结果的一种解释是，躯体化障碍患者对“相关”和“不相关”刺激的反应比正常人更为相似。躯体化障碍中注意力加工受损的这一发现提示了一种细微的神经生理紊乱。
