Three nerves carry taste signals to the brain stem: the chorda tympani nerve (from the front of the tongue), the glossopharyngeal nerve (from the back of the tongue) and the vagus nerve (from the ...

to the various cortical regions involved in the processing of olfactory information as it passes to the brain. Much of the sensation we consider to be taste is actually olfactory, which is why our ...

A new study questions the longstanding view that the visual system ... When visual information enters the brain, it travels through two pathways that process different aspects of the input.