Heteromodal association cortex; Tertiary cortex
The heteromodal cortex refers to a region that receives input from multiple sensory or multimodal areas. Two major areas of heteromodal cortex are generally identified. Posteriorly, there is the PTO cortex (the confluence of the parietal, temporal, and occipital lobes), as well as certain occipitotemporal and occipitoparietal areas. Essentially, these are areas that receive input from multiple unimodal sensory association areas and/or other heteromodal cortices. Anteriorly, the prefrontal cortices are generally considered multimodal or heteromodal in that they also receive input from multiple sensory or other polymodal cortices. Because of their multimodal inputs, these cortical areas are considered to be responsible for more complex or integrated cognitive activities. For example, when we think of an apple, we imagine not only how it looks and tastes, but also its smell, its texture, its weight, and even how it sounds...
References and Readings
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