Functional imaging studies in humans and monkeys have shown category-selective regions in the temporal cortex, in particular for faces and bodies. Although the body-selective regions have been well studied in humans, little is understood about the functional properties of such regions in macaques. To address this, we first mapped body-selective activations in the visual cortex of four rhesus monkeys in a block design fMRI study and identified two regions in the middle and anterior Superior Temporal Sulcus (STS) that were more strongly activated by monkey bodies compared to well-controlled manmade objects. These two regions partially overlapped with regions that were more activated by faces than manmade objects. Secondly, using an event-related, single image fMRI design we measured the activations to 200 images of 10 stimulus classes (monkey bodies, human bodies, mammals, birds, monkey faces, human faces, body-like sculptures, fruits/vegetables, and two sets of control objects). Multivoxel-pattern analyses showed that both body-selective regions primarily distinguished faces from other inanimate and animate objects, including bodies. Another distinction was present between inanimate objects and bodies in the middle STS body regi...Continue Reading
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Aphasia affects the ability to process language, including formulation and comprehension of language and speech, as well as the ability to read or write. Here is the latest research on aphasia.
Cajal Bodies & Gems
Cajal bodies or coiled bodies are dense foci of coilin protein. Gemini of Cajal bodies, or gems, are microscopically similar to Cajal bodies. It is believed that Cajal bodies play important roles in RNA processing while gems assist the Cajal bodies. Find the latest research on Cajal bodies and gems here.