Computer Vision News - July 2020
3 Summary A map of object sp ce ... 5 regions within the IT cortex encode for recognition of different objects. Tsao and her group previously discovered six face regions (patches) which can encode for scenes, colors and bodies. The feature representation and the location of the brain cells though have not been studied further. In this work, they used functional magnetic resonance imaging (fMRI) in combination with microstimulation and electrophysiology of the brain to investigate the IT cortex of five macaque monkeys. Figure 2: The reconstructions of objects using 482 cells with responses of neurons recorded from the four networks tiling objects space. Left: object presented to the animal, right: reconstructed object. A previously undefined region of the central IT cortex was microstimulated on a monkey at a random site, to the responses of face, the pre-defined body, scene, color, and disparity patches using fMRI. This led to the discovery of three new networks: NML, body and face. This is a very important finding since it belonged to a previously unchartered region of IT cortex.
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