Convergence of thalamic and cortical pathways in cat auditory cortex.

摘要: Cat auditory cortex (AC) receives input from many thalamic nuclei and cortical areas. Previous connectional studies often focused on one system in isolation, limiting perspectives AC computational processes. Here we review the convergent thalamic, commissural, corticocortical projections to thirteen areas cat. Each differs strength may thus serve unique roles. We compared intrinsic extrinsic each area quantitatively. The was almost half total. Among projections, ipsilateral sources contributed 75%, 15%, contralateral 10%. patterns of distribution support division into families tonotopic, non-tonotopic, multisensory, limbic-related areas, with arising primarily within its group. connections these areal suggest a form processing which convergence an could enable new forms integration. In contrast, lateral between subserve integration categorical representations, allowing otherwise independent streams communicate thereby coordinating operations over wide spatial functional scales. These serial interfamilial cooperation challenge more classical models organization that underestimate diversity complexity connectivity.