Kaas J H, Hackett T A, Tramo M J
Department of Psychology, Vanderbilt University, 301 Wilson Hall, 111 21st Avenue South, Nashville, Tennessee 37240, USA.
Curr Opin Neurobiol. 1999 Apr;9(2):164-70. doi: 10.1016/s0959-4388(99)80022-1.
Auditory information is relayed from the ventral nucleus of the medial geniculate complex to a core of three primary or primary-like areas of auditory cortex that are cochleotopically organized and highly responsive to pure tones. Auditory information is then distributed from the core areas to a surrounding belt of about seven areas that are less precisely cochleotopic and generally more responsive to complex stimuli than tones. Recent studies indicate that the belt areas relay to the rostral and caudal divisions of a parabelt region at a third level of processing in the cortex lateral to the belt. The parabelt and belt regions have additional inputs from dorsal and magnocellular divisions of the medial geniculate complex and other parts of the thalamus. The belt and parabelt regions appear to be concerned with integrative and associative functions involved in pattern perception and object recognition. The parabelt fields connect with regions of temporal, parietal, and frontal cortex that mediate additional auditory functions, including space perception and auditory memory.
听觉信息从中内侧膝状体复合体的腹侧核传递至听觉皮层三个主要或类似主要区域构成的核心区，这些区域呈耳蜗拓扑组织，对纯音有高度反应。然后，听觉信息从核心区传递至周围约七个区域组成的带状区，这些区域的耳蜗拓扑组织不太精确，通常对复杂刺激的反应比对纯音的反应更强。最近的研究表明，在皮层中位于带状区外侧的第三级处理水平上，带状区向旁带状区的嘴侧和尾侧部分传递信息。旁带状区和带状区还从中内侧膝状体复合体的背侧和大细胞部分以及丘脑的其他部分接收额外输入。带状区和旁带状区似乎与模式感知和物体识别中涉及的整合和联想功能有关。旁带状区与颞叶、顶叶和额叶皮层的区域相连，这些区域介导包括空间感知和听觉记忆在内的其他听觉功能。
