Answer:
The least amount of brain tissue in the sensory cortex is dedicated to the sense of smell, also known as olfaction.
The sensory cortex is responsible for processing sensory information from different parts of the body. It is divided into different regions, each dedicated to a specific sense, such as touch, vision, hearing, and smell.
Out of all the senses, the sense of smell has the least amount of brain tissue dedicated to it in the sensory cortex. This is because the olfactory system, which is responsible for detecting and processing smells, is relatively simple compared to other sensory systems.
While other senses like touch, vision, and hearing require more complex processing and integration of sensory information, the sense of smell is more straightforward. The olfactory system consists of receptors in the nasal cavity that detect odor molecules and send signals to the brain for interpretation. This simplicity of the olfactory system is reflected in the relatively smaller amount of brain tissue dedicated to it in the sensory cortex.
So, in summary, the least amount of brain tissue in the sensory cortex is dedicated to the sense of smell or olfaction.