Why are the many unique flavors we recognize not just tastes alone but a combination of sensations based on tastes, odors, touch, temperature, and pain?

This is because all incoming signals are integrated with other sensory signals and even memories to produce our perceptions

Explanation:

It should be understood that sensations are based on the activities of the sense organs. And all the sense organs possess the same sensory pathway which are

* Ability to sense or detect a stimulus

*  Detection of a stimulus is converted to a nerve impulse

* Signal from nerve impulse is conducted to the brain

*  Processing information is the sensation perceived in the brain.

It has also been noted that, the flavor sensation came from a combination of sensory stimuli which were detected by the gustatory cells, olfactory receptors, and also, touch and pain receptors.

true. these things define the personality of the person.