Lü Z L, Williamson S J, Kaufman L
Department of Physics, New York University, New York 10003.
Brain Res. 1992 Feb 14;572(1-2):236-41. doi: 10.1016/0006-8993(92)90475-o.
The magnetic field pattern over the temporal area of the scalp 100 ms following the onset of a tone burst stimulus provides evidence for neuronal activity in auditory primary and association cortices that overlap in time. Habituation studies indicate that onset and offset features of a tone produce activation traces in primary cortex that are at least partially common, but only the onset produces an appreciable trace in association cortex. The characteristic time constant for the decay of the latter's activation trace is several seconds longer than for the former.
在短纯音刺激开始后100毫秒时头皮颞区的磁场模式，为听觉初级皮层和联合皮层中神经元活动在时间上的重叠提供了证据。习惯化研究表明，短纯音的起始和结束特征在初级皮层产生的激活痕迹至少部分相同，但只有起始在联合皮层产生明显的痕迹。后者激活痕迹衰减的特征时间常数比前者长几秒。
