The lower third of the organ esophagus (brainstem) is about the morsel you can’t swallow. The upper ⅔ of the esophagus (cerebral cortex) is about the morsel you want to spit out. For the latter, handedness is crucial.

Esophageal Cancer left
Esophageal Cancer left – Diagnostic Chart Conflict: Not wanting to swallow a morsel, wanting to spit it out again. for the right-handed person concerning mother